745691-02 [NI]
RTD Platinum Sensor;
| 型号： | 745691-02 |
| 厂家： | 
National Instruments |
| 描述： | RTD Platinum Sensor 传感器 换能器 |
| 文件： | 总17页 (文件大小：4118K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SCC Configuration Guide
SCC – Portable, Low-Cost
Signal Conditioning
• Ideal for portable measurement systems
• Wide variety of direct signal and sensor
connectivity options
• Wide range of analog and digital
conditioning options
• Measurement type selectable
on a per-channel basis
• Front-end signal conditioning
for M Series, E Series, and some
B Series multifunction DAQ devices
Configure Your SCC System in Six Steps
Step 1 – Select Your SCC Modules (Table 1)
Analog input, analog output, and digital I/O modules have dedicated
slots. You can select up to eight noncascaded modules for analog input
and eight modules for digital I/O. You can install feedthrough modules in
any slot, but they are especially useful for accessing counter/timers on
your M Series, E Series, or B Series multifunction DAQ device.
7 to 42 VDC external power source. To indicate the power option for your
SCC system, select 01, 02, or 03 as the last two digits of the part number
of the SC-2345 or SC-2350 carrier.
Please note that if you choose power option 01, it is possible to power
your SCC system using the internal power source of your DAQ device.
For DAQCard and DAQPad devices, the total power required by your SCC
modules must be less than 800 mW (490 mW of analog power). For PCI
or PXI and M Series or E Series multifunction DAQ devices, the total
power required by your SCC modules must be less than 4.55 W (1.74 W
for analog modules). Additional power modules are sold separately. To
determine the power requirements of the modules in your SCC DAQ
system, use the online SCC Advisor at ni.com/advisors.
Step 2 – Choose an SCC Carrier (Table 2)
SCC carriers are available either with a hinged lid or with
configurable connectors using panelettes. Hinged lids provide quick
access to the modules. Configurable connectors provide custom signal-
interface options.
Step 5 – Select Your DAQ Device and Cable (Table 5)
Step 3 – Select Your Panelettes (Table 3)
Select the DAQ device to control your system.
If you have chosen an SCC carrier with configurable connectors, you can
also select connector and interface panelettes. Different carriers offer
different numbers of panelette slots. Also, some panelettes occupy more
than one slot.
Step 6 – Select Your Accessories
Choose from rack/panel-mount kits and stacking kits. You can also select
additional power kits separately if your application requires multiple
power configurations.
Step 4 – Determine Your Power Option (Table 4)
You can power an SCC system using a +5 VDC, 120/240 VAC, or
SCC Configuration Guide
SCC Modules
Signal Types
Number of
Channels
Signal
Range
Excitation
Sources
Excitation
Values
Module
Description
Gain
Filtering
Isolation
Page
SCC-AI0x
2 ISO
–
–
–
–
–
–
–
–
Isolation amplifier
0.2
to 200
±50 mV
to ±42 V
10 kHz
–
–
9
ꢀ
ꢀ
SCC-AI1x
SCC-A10
2 ISO
2 DI
2 DI
2 DI
2 DI
2 DI
2 RSE
1 DI
1 DI
2 DI
2 DI
2 DI
2 DI
2 DI
2 DI
2 DI
1 DI
2 DI
1 ISO
1 ISO
1 ISO
1 ISO
1
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
ꢀ
–
ꢀ
–
–
ꢀ
–
–
–
–
–
–
ꢀ
–
–
–
–
–
–
–
–
–
–
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–
–
–
–
–
–
–
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–
ꢀ
ꢀ
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–
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–
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–
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–
–
ꢀ
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–
ꢀ
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–
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–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Isolation amplifier
Attenuator
Lowpass filter
Lowpass filter
Lowpass filter
1.2
0.1
0.5
0.5
0.5
0.5
1
100
100
25
100
100
100
100
–
100
2
–
–
–
–
–
–
±10 V, ±5 V
±±0 V
±10 V
±10 V
±10 V
4 Hz
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
1 mA
2.5 V
2.5 V
2.5 V
2.5 V
–
10 V
4 mA
–
–
–
–
–
9
11
12
12
12
12
13
4
4
5
±
±
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
–
ꢀ
ꢀ
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
SCC-LP01
SCC-LP02
SCC-LP03
SCC-LP04
SCC-FV01
SCC-TC01
SCC-TC02
SCC-RTD01
SCC-SG01
SCC-SG02
SCC-SG03
SCC-SG04
SCC-SG11
SCC-SG24
SCC-ACC01
SCC-CI20
SCC-AO10
SCC-CO20
SCC-DI01
SCC-DO01
SCC-RLY011
25 Hz
50 Hz
150 Hz
1 kHz
–
2 Hz
2 Hz
30 Hz
1.± kHz
1.± kHz
1.± kHz
1.± kHz
–
1.± kHz
19 kHz
–
–
–
–
–
–
Lowpass filter
±10 V
Frequency-to-voltage
Thermocouple input
Thermocouple input
RTD input
Strain (1⁄4-bridge, 120 Ω)
Strain (1⁄4-bridge, 350 Ω)
Strain (1⁄2-bridge )
Strain (full-bridge)
Strain shunt calibration
Full bridge input (350 Ω)
IEPE accelerometer input
Current input
Isolated voltage output
Isolated current output
Isolated digital input
Isolated digital output
SPDT Relay
0 to 100 Hz
±100 mV
±100 mV
±400 mV
±100 mV
±100 mV
±100 mV
±100 mV
–
±100 mV
±5 V
0 to 20 mA
±10 V
–
–
–
1 current
1 voltage
1 voltage
1 voltage
1 voltage
–
1 voltage
1 current
–
–
–
–
–
–
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
–
–
–
–
–
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
–
–
–
–
–
±
±
±
±
ꢀ
ꢀ
–
ꢀ
–
8
13
10
14
14
15
15
ꢀ
ꢀ
ꢀ
ꢀ
–
0 to 20 mA
±24 VDC
30 VDC
5 A at 30 VDC
250 VAC
–
–
–
–
–
ꢀ
ꢀ
–
–
–
–
ꢀ
SCC-CTR01
SCC-FT01
1 ISO
2 SE/1 DI
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Isolated counter/timer
Feedthrough
–
–
0 to 48 VDC
–
–
–
–
–
–
–
7
1±
ꢀ
ꢀ
–
–
1The switching capability of SCC-RLY01 is not 5 A at 250 VAC throughout – it is 5 A at 250 VAC only if it is used with SCC-±8, and it is 5 A at 30 VAC if used with SC-2345.
Table 1. SCC Module Selection Guide
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2
SCC Configuration Guide
SC-2345 and SC-2350 Carriers
Recommended DAQ Devices
Description
Number of Panelette Slots
SCC carrier with a hinged lid
SCC carrier with configurable connectors (side ±8-pin interface)
SCC carrier with configurable connectors (rear ±8-pin interface)
–
18
15
Product
M Series
Multifunction I/O Features
Multifunction I/O
1±-bit, 200 kHz
Bus
PCI, PXI
PCMCIA
USB
IEEE 1394
PCI, PXI
PCI, PXI
PCI
Cabling To
SHC±8-±8-EP
SHC±8-±8-EP
SH±8-±8-EP
SH±8-±8-EP
SH±8-±8-EP
SH100±8±8
SH±8-±8-EP
DAQCard-±03±E
DAQPad-±020E
DAQPad-±070E
±8-pin PCI/PXI E Series
100-pin PCI/PXI E Series
B Series
12-bit, 100 kHz
12-bit, 1 MHz
Multifunction I/O
Multifunction I/O
Multifunction I/O
Table 2. SCC Carriers
Panelettes
Table 5. National Instruments DAQ Devices
SCC Advisor
Connectors/Units
per Panelette
Panelette
Description
Slot Width
Minithermocouple jack
J or K-type
or uncompensated
2
2
1
1
Thermocouple jack
J or K-type
or uncompensated
1
1
1
1
BNC
SMB
Banana jack
LEMO (B Series)
BNC connector
SMB connector
Banana jack
2-pin female
4, ±-pin female
2
4
2
2
1
1
1
1
1
1
MIL-C-2±482
9-pin D-Sub
2, 4, or ±-pin female
Single (male – female)
Dual (male – female)
1
1
2
1
2
3
Momentary switch
Toggle switch
Rocker switch
LED
On – off
On – off – on
On – off – on
A red, green, yellow,
and orange LED
2
2
1
4
1
1
1
1
Potentiometer
Strain relief
Blank
1 turn, 10 kΩ
Small
Filler panel
1
1
–
1
–
–
For more assistance in configuring your SCC system,
visit the SCC Advisor at ni.com/advisors.
Table 3. Panelettes
Power Options
Power Type
Power Supplied By
Power Option
+5 VDC
DAQCard/DAQPad (800 mW maximum)
PCI/PXI (4.55 W maximum)
-01
120 VAC, 240 VAC
7 to 42 VDC
External1
External2
-02
-03
1AC transformer included. However, you must purchase a separate power cord to match your country’s power requirements.
2External power supply not included.
Table 4. SC-2345/SC-2350 Power Options
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3
Portable, Modular Signal Conditioning Modules
NI SCC-TC Series Thermocouple Input
Specifications
SCC-TC Series
Typical for 25 °C unless otherwise noted.
Input Characteristics
Number of channels............................ 1 differential
Input signals........................................ Thermocouples of type J, K, T, B,
E, N, R, and S, ±100 mV
Input signal gain ................................. 100
Maximum input working voltage........ ±12 V of chassis ground
Overvoltage protection
to DAQ device................................. ±42 Vpk (powered on or off)
Nonlinearity......................................... ±0.004ꢀ maximum
Gain error ............................................ ±0.08ꢀ of reading, maximum
Input impedance
Normal powered on........................ 10 MΩ
Powered off or overload................. 10 kΩ
Open thermocouple detection current 250 nA maximum
Common-mode rejection ratio............ 110 dB minimum
Bandwidth........................................... 2 Hz, dual-pole RC filter
Offset error.......................................... 5 µVrms, referred to input
Stability
Offset temperature coefficient....... ±0.± µV/°C maximum
Gain temperature coefficient ......... ±0.0005ꢀ/°C
Cold-junction sensor (thermistor)
Model
SCC-TC01
SCC-TC02
Channel
1
1
Description
Thermocouple, spade connector
Thermocouple, screw terminals
Part Number
777459-03
777459-04
The National Instruments SCC-TC01 and SCC-TC02 are single-input
modules for conditioning signals from a variety of thermocouple types,
including J, K, T, B, E, N, R, and S, and millivolt inputs with a range of
±100 mV. The NI SCC-TC modules include a 2 Hz lowpass filter, an
instrumentation amplifier with a gain of 100, and buffered outputs for
maximum scanning rates by the multifunction DAQ device. The input
circuitry of the SCC-TC modules also includes high-impedance bias
resistors for open-thermocouple detection as well as handling both
floating and ground-referenced thermocouples. The SCC-TC modules
include an onboard thermistor for cold-junction compensation.
Two versions of the SCC-TC are available. The SCC-TC01 includes a
2-prong uncompensated thermocouple jack that accepts any miniature or
subminiature 2-prong male thermocouple plug. The SCC-TC02 includes a
removable screw-terminal plug that features an additional connection for
grounding thermocouple shields.
Output ............................................. 1.91 V (at 0 °C) to 0.58 V
(at 55 °C)
Accuracy (15 to 35 °C).................... ±0.4 °C maximum
Power Requirements
Analog................................................. ±0 mW
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4
Portable, Modular Signal Conditioning Modules
NI SCC-RTD01 RTD Input
Specifications
SCC-RTD01
Analog Input
Number of input channels .................. 2 differential
Input range.......................................... ±400 mVDC (fixed gain of 25
on each channel)
Maximum working voltage
Model
Channel
Description
Part Number
(signal + common mode) ................ Each input should remain within
±12 V of ground
Overvoltage protection ....................... ±42 Vpk/25 VDC (powered on
or off)
Input impedance ................................. 2 MΩ in parallel with 4.7 nF
powered on; 20 kΩ min
SCC-RTD01
2
2, 3, or 4-wire Pt RTD
777459-18
The National Instruments SCC-RTD01 is a dual-channel module that
accepts 2, 3, or 4-wire platinum RTDs. Each channel of the
NI SCC-RTD01 has an amplifier with a gain of 25 and a 30 Hz lowpass
filter. In addition, the module has a 1 mA excitation source for powering
the RTDs.
powered off
Filter type ............................................ Lowpass 3-pole Butterworth filter
-3 dB cutoff frequency ........................ 30 Hz
System noise....................................... 4.5 µVrms (referred to input)
Transfer Characteristics
Gain .................................................... 25
Gain error ............................................ ±1.2ꢀ
Gain-error temperature coefficient..... ±10 ppm/°C
Offset error.......................................... ±250 µV RTI
Offset-error temperature coefficient.. ±1.± µV/°C
Nonlinearity......................................... 10 ppm of full scale
Recommended warm-up time............. 5 minutes (SCC system only)
Amplifier Characteristics
CMRR .................................................. 110 dB at ±0 Hz
Output range ....................................... ±10 V
Excitation
Number of channels............................
1
Constant-current source ..................... 1 mA
Maximum voltage level without
losing regulation............................. 24 V
Drift .................................................... ±127 ppm/°C
Environment
Operating temperature ....................... 0 to 50 °C
Relative humidity ................................ 5 to 90ꢀ noncondensing
Power Requirements
Analog................................................. 135 mW maximum
Digital.................................................. 153 mW maximum
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5
Portable, Modular Signal Conditioning Modules
Overvoltage protection ....................... ±28 Vp (powered on or off)
Input impedance ................................. 10 MΩ powered on, 10 kΩ
powered off or overload
Gain error ............................................ ±0.8ꢀ of reading maximum
Offset error.......................................... ±5 µV
NI SCC-SG Series Strain Gage
Input/Excitation
Bandwidth........................................... 1.± kHz (single-pole RC filter)
Excitation voltage ............................... 2.5 V ±0.4ꢀ
Excitation Current Drive
SG01, SG02......................................... 42 mA (with 2 120 Ω gages)
SG03, SG04......................................... ±0 mA (with 2 350 Ω gages)
Excitation drift..................................... 13 mV/°C
Power Requirements
Model
Channel
Description
Part Number
777459-13
777459-14
777459-15
777459-1±
777459-17
777459-37
Analog................................................. 143 mW
Digital.................................................. 210 mW
SCC-SG01
SCC-SG02
SCC-SG03
SCC-SG04
SCC-SG11
SCC-SG24
2
2
2
2
2
2
120 Ω, quarter-bridge strain gages
350 Ω, quarter-bridge strain gages
Half-bridge strain gages
Full-bridge strain gages
Shunt calibration
Full-bridge strain gages, load cells,
pressure sensors, torque sensors
SCC-SG11
Number of channels............................
2
Control signal...................................... 1 DIO channel
Resistor for each channel................... 301 kΩ ±1ꢀ, socketed
Resistor temperature coefficient........ ±100 ppm/°C
The National Instruments SCC-SG Series consists of dual-channel strain
gage modules for conditioning quarter, half, and full-bridge strain gages
and a calibration module. Each module is designed for a specific type of
bridge configuration. Each channel of an NI SCC-SG module (except
SCC-SG11) includes an instrumentation amplifier, a 1.± kHz lowpass
filter, and a potentiometer for bridge-offset nulling. Each SCC-SG0x
module also includes a single 2.5 V excitation source. The SCC-SG24
has a 10 V excitation source for load cells and pressure sensors.
The SCC-SG11 is a dual-channel shunt calibration module for use with
the SCC-SG0x and SCC-SG24 modules. Each channel includes two
terminals for wiring a switched 301 kΩ, 1 percent, 1⁄4 W resistor across
any two points of your bridge. You enable shunt calibration for both
channels of a module by writing a logic high to the digital line controlling
the SCC-SG11. You disable shunt calibration by writing a logic low to the
same digital line.
Power Requirements
Digital.................................................. 25 µW
SCC-SG24
Input Characteristics
Number of channels............................ 2 differential
Input signal range............................... ±100 mV
Output signal range ............................ ±10 V
Gain .................................................... 100
Overvoltage protection ....................... ±42 VDC powered on and
powered off
Input impedance ................................. 20 MΩ powered on >±0 kΩ
powered off or overload
Gain error ............................................ ±0.20ꢀ of reading max
Offset error.......................................... ±50 µV typ, 325 µV max before
calibration1
Bandwidth........................................... 1.± kHz single-pole buffered RC
filter
Excitation voltage ............................... 10 V ±0.05ꢀ
Excitation current drive....................... ±0 mA, based on two full-bridge
350 Ω strain gages
When you install an SCC-SG module in the SC-2345, the carrier routes
the strain gage signals to two input channels of the multifunction DAQ
device, channels x and x+8, where x is 0 through 7.
Specifications
SCC-SG0x
Excitation drift..................................... 10 ppm/°C
Power Requirements
Analog................................................. 340 mW
Digital.................................................. 930 mW
Input Characteristics
Number of channels............................ 2 differential
Input signal range............................... ±100 mV
Output signal range ............................ ±10 V
Gain .................................................... 100
1By factory default, the nulling resistors are not installed in the SCC-SG24. See the user
manual for information on installing the nulling resistors.
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6
Portable, Modular Signal Conditioning Modules
NI SCC-CTR01 Counter/Timer Isolation
Model
Channel
Description
Part Number
SCC-CTR01
1
0 to 48 V isolated counter/timer
779474-01
The National Instruments SCC-CTR01 is an isolated general-purpose
counter/timer module for the SCC platform. This module performs in a
wide variety of counter/timer tasks, including quadrature encoder
measurement, edge counting, frequency measurement, pulse-width-
modulation (PWM) generation, and pulse-train generation.
With optical isolation, the test system and UUT are protected from
transient voltage spikes when the signals are connected to the
SCC-CTR01. The SCC-CTR01 also features short-circuit protection that
disables the outputs if current limits are reached.
Specifications
SCC-CTR01
Number of inputs................................ 2 (CTR_SRC, CTR_GATE)
Number of outputs.............................. 1 (CTR_OUT)
Voltage range...................................... 0 to 48 VDC
Isolation voltage ................................. ±0 VDC
Maximum input frequency.................. 400 kHz
Minimum pulse width......................... 1 µs
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7
Portable, Modular Signal Conditioning Modules
NI SCC-ACC01 Accelerometer Input
Specifications
SCC-ACC01
Analog Input
Number of input channels .................. 1 differential
Input range.......................................... ±5 VAC (fixed gain of 2)
Input coupling ..................................... AC
-3 dB cutoff frequency.................... 0.8 Hz
Filter type ............................................ Lowpass 3-pole Bessel
-3 dB cutoff frequency.................... 19 kHz
Passband flatness............................... ±0.3 dB, 10 Hz to 5 kHz
±1 dB, 5 Hz to 10 kHz
Maximum working voltage
(signal + common mode) ................ Each input should remain within
±12 V of ground
Overvoltage protection ....................... ±40 VAC + DC (powered on
or off)
Input impedance ................................. 5 MΩ in series with 0.39 µF
(powered on or off)
Model
SCC-ACC01
Channel
1
Description
Accelerometer input
Part Number
777459-19
The National Instruments SCC-ACC01 is a single-channel module that
accepts Integrated Electronic Piezoelectric (IEPE) compatible sensors
such as accelerometers and microphones. The NI SCC-ACC01 has an
amplifier with a gain of two, a 0.8 Hz highpass filter, and a 19 kHz
3-pole Bessel lowpass filter. The maximum input range is ±5 V. In
addition, this module has a 4 mA current source to power an
accelerometer or microphone.
When you install the SCC-ACC01 into the SC-2345, the carrier routes
the single output voltage to one input channel of the multifunction DAQ
device, channel x, where x is 0 through 7. For example, if installed into
the J1 socket of the SC-2345, the output voltage is routed to input
channel 0 of the DAQ device.
System noise....................................... 130 µVrms (referred to input)
Transfer Characteristics
Gain ....................................................
2
Gain error ............................................ ±1ꢀ
Gain-error temperature coefficient..... ±10 ppm/°C
Offset error.......................................... ±3 mV (referred to input)
Offset-error temperature coefficient.. ±1.± µV/°C
Nonlinearity......................................... 10 ppm of full scale
Recommended warm-up time............. 5 minutes
Amplifier Characteristics
CMRR .................................................. 80 dB at ±0 Hz
Output range ....................................... ±10 V
Excitation
Number of channels............................
1
Constant-current source ..................... 4 mA
Maximum voltage level
without losing regulation ............... 24 V
Drift .................................................... ±127 ppm/°C
Environment
Operating temperature ....................... 0 to 50 °C
Relative humidity ................................ 5 to 90ꢀ noncondensing
Power Requirements
Analog................................................. 89 mW
Digital.................................................. 420 mW
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8
Portable, Modular Signal Conditioning Modules
NI SCC-AI Series Isolated Analog Input
Specifications
SCC-AI Series
Input Characteristics
Number of channels............................ 2 differential, isolation
per module
Input impedance ................................. 1 MΩ (SCC-AI01, SCC-AI02)
100 MΩ (all others)
Safety Isolation
Working common-mode voltage......... ±0 VDC, CAT I1
Gain error ............................................ Adjustable to 0
Offset error.......................................... Adjustable to 0
Model
Channel
Input Range
±42 V
±20 V
±10 V
±5 V
Bandwidth
10 kHz
10 kHz
10 kHz
10 kHz
10 kHz
10 kHz
10 kHz
4 Hz
Part Number
777459-20
777459-21
777459-22
777459-23
777459-24
777459-25
777459-2±
777459-27
777459-28
SCC-AI01
SCC-AI02
SCC-AI03
SCC-AI04
SCC-AI05
SCC-AI0±
SCC-AI07
SCC-AI13
SCC-AI14
2
2
2
2
2
2
2
2
2
Power Requirements
Analog................................................. 410 mW
Digital ................................................. ±10 mW
±1 V
±100 mV
±50 mV
±10 V
±5 V
4 Hz
1Test isolation voltage is 2,350 VAC for 2 s.
National Instruments SCC-AI Series modules are dual-channel bank-
isolated analog input modules for reading input voltages from ±50 mV to
±42 V. Each channel of an NI SCC-AI module includes an instrumentation
amplifier, a lowpass filter, and a potentiometer for calibration. These
modules are installation rated for CAT I, and provide safety working
isolation of ±0 VDC per module.
Module
Input Range
±42 V
±20 V
±10 V
±5 V
Output Range
±8.4 V
±10 V
±10 V
±10 V
±10 V
±10 V
±10 V
±10 V
Gain
0.2
0.5
1
2
10
100
200
1
Filter Bandwidth
10 kHz
10 kHz
10 kHz
10 kHz
10 kHz
10 kHz
10 kHz
4 Hz
SCC-AI01
SCC-AI02
SCC-AI03
SCC-AI04
SCC-AI05
SCC-AI0±
SCC-AI07
SCC-AI13
SCC-AI14
±1 V
±100 mV
±50 mV
±10 V
±5 V
±10 V
2
4 Hz
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9
Portable, Modular Signal Conditioning Modules
NI SCC-AO10 Isolated Analog Output
Specifications
SCC-AO10
Output Characteristics
Number of output channels................ 1 nonreferenced single ended
Input range.......................................... ±10 V
Output range ....................................... ±10 V
Current drive ....................................... ±30 mA
Gain nonlinearity................................. 0.5ꢀ of full-scale output range
Propagation delay ............................... 10 µs
Output noise........................................ 2.5 mVrms typ; 4 mVrms max
Bandwidth........................................... >23 kHz
Model
SCC-AO10
Channel
1
Description
±10 V isolated voltage output
Part Number
777459-50
Slew rate............................................. 1 V/µs
The National Instruments SCC-AO10 is a single-channel isolated analog
voltage output module with an output range of ±10 V. Each channel of
the NI SCC-AO10 is referenced to its own isolated ground, allowing up to
±0 VDC of common-mode voltage between grounds (channel-to-channel
or channel-to-chassis). In addition, the SCC-AO10 increases the output
current drive capacity of an M Series, E Series, or B Series multifunction
DAQ device to ±30 mA. Because the modules are isolated, you can
cascade two SCC-AO10 modules for an output range of ±20 V. There is
a maximum of two SCC-AO10 modules per carrier.
Safety Isolation
Channel-to-earth
(signal + common mode) ................ ±0 VDC, CAT I
Environment
Operating temperature ....................... 0 to 50 °C
Relative humidity ................................ 10 to 90ꢀ noncondensing
Stability
Output offset temperature
coefficient................................... 300 µV/°C
Gain temperature coefficient ......... 300 ppm/°C
Note: Use the SCC-AO10 with only multifunction DAQ devices that have
Power Requirements
Analog................................................. 180 mW
Digital.................................................. 1.15 W
analog outputs.
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10
Portable, Modular Signal Conditioning Modules
NI SCC-A10 Voltage Attenuator
Model
Channel
Description
Part Number
SCC-A10
2
Attenuator input
777459-0±
The National Instruments SCC-A10 is a dual-channel module that
accepts input voltage sources up to ±0 VDC. Each channel of the
NI SCC-A10 includes a 10:1 attenuation circuit and differential
instrumentation amplifier with low-impedance outputs for maximum
scanning rates by the multifunction DAQ device. The attenuation circuit
includes high-impedance bias resistors, so you can connect floating or
ground-referenced inputs to the SCC-A10 without adding external bias
resistors. The SCC-A10 also provides overvoltage protection (up to
250 Vrms) for your DAQ system.
When you install an SCC-A10 module in the SC-2345, the carrier
routes the attenuated input signals to two input channels of the DAQ
device, channels x and x+8, where x is 0 through 7.
Specifications
SCC-A10
Input Characteristics
Number of channels............................ 2 differential
Input range.......................................... ±±0 VDC
Output range ....................................... ±± VDC
Gain error ............................................ ±0.14ꢀ of reading, maximum
Offset error.......................................... ±±.5 mV maximum (referred
to input)
Input impedance
Normal powered on or off.............. 1 MΩ
Full power bandwidth......................... 10 kHz
Power Requirements
Analog................................................. 90 mW
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11
Portable, Modular Signal Conditioning Modules
NI SCC-LP Series Lowpass Filters
Specifications
SCC-LP Series
Amplifier Characteristics
Number of input channels .................. 2 differential
Input signal range............................... ±10 V
Output signal range ............................ ±5 V
Gain .................................................... 0.5
Overvoltage protection ....................... ±40 V
Input impedance ................................. 10 GΩ in parallel with 10 pF
powered on 10 kΩ powered off
Model
Channel
Description
Part Number
777459-07
777459-08
777459-09
777459-10
SCC-LP01
SCC-LP02
SCC-LP03
SCC-LP04
2
2
2
2
Lowpass filter (25 Hz)
Lowpass filter (50 Hz)
Lowpass filter (150 Hz)
Lowpass filter (1 kHz)
or overload
Gain error ............................................ Adjustable to 0ꢀ
Offset error (RTI) ................................. 350 µV typical, 1.5 mV maximum
The National Instruments SCC-LP Series consists of dual-channel
lowpass filter modules that accept two ±10 V signals. Each channel has
a 4th-order Butterworth filter. The cutoff frequency is specific to the
module and applies to both channels of the module.
Filter Characteristics
Filter type ............................................ 4th-order Butterworth
Stop-band attenuation rate ................ 80 dB/decade
Cutoff frequency ................................. SCC-LP01 = 25 Hz
SCC-LP02 = 50 Hz
SCC-LP03 = 150 Hz
SCC-LP04 = 1 kHz
Passband Ripple
Fc = cutoff frequency
Passband
Typical
Maximum
0 ± 0.1 dB max
0 ± 0.2 dB max
-0.2 ± 0.4 dB max
-3 ± 0.5 dB max
1
DC to ⁄
3
Fc
Fc
Fc
0 ± 0.04 dB max
0 ± 0.0± dB max
-0.2 ± 0.25 dB max
-3 ± 0.3 dB max
1
DC to ⁄
2
2
DC to ⁄
3
DC to Fc
System Noise
THD at Fc ............................................. <-90 dB
Wide band noise
(DC to 1 MHz, referred to input)..... 100 µVrms
Narrow band noise
(DC to 33 kHz, referred to input) .... ± µVrms
Stability
Gain temperature coefficient.............. 10 ppm/°C typical, 20 ppm/°C
maximum
Offset drift (RTI) .................................. 3.4 µV/°C typical, 27 µV/°C
maximum
Power Requirements
SCC-LP01, LP02
Analog............................................. 135 mW
SCC-LP03, LP04
Analog............................................. 475 mW
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12
Portable, Modular Signal Conditioning Modules
NI SCC-FV01 Frequency Input Module
NI SCC-CI20 Current Input
Model
Channel
Description
Part Number
Model
Channel
Description
Part Number
SCC-FV01
2
Frequency-to-voltage conversion (0 to 100 Hz)
777459-32
SCC-CI20
2
0 to 20 mA current input
777459-05
The National Instruments SCC-FV01 is a dual-channel frequency-to-
voltage conversion module that accepts ±10 V signals up to 100 Hz. The
output scales linearly with the input frequency, and goes to 0 V with a
DC input signal. Each channel triggers on the incoming signal using a
threshold of 0 V and a hysteresis of 200 mV. For isolated solutions,
consider using the SCC-AI03 cascaded with the NI SCC-FV01.
The National Instruments SCC-CI20 is a dual-channel module that
accepts two 0 to 20 mA or 4 to 20 mA current loop inputs. Each
independent channel of the NI SCC-CI20 includes a precision 249 Ω
current conversion resistor that converts a 0 to 20 mA signal into a
0 to 5 V signal. Each channel includes a differential instrumentation
amplifier with low-impedance outputs for maximum scanning rates by
the multifunction DAQ device, and bias resistors for handling both
floating and ground-referenced current sources. The SCC-CI20 also
includes two spare 249 Ω resistors.
Specifications
SCC-FV01
When you install the SCC-CI20 in the SC-2345, the carrier routes the
two output voltages to two input channels of the DAQ device, channels x
and x+8, where x is 0 through 7. For example, if you install the module in
the J1 socket of the SC-2345, the output voltages are routed to input
channels 0 and 8 of the DAQ device.
Input Characteristics
Number of input channels .................. 2 referenced single ended
Input range.......................................... 200 mV1 to 10 V
Input coupling ..................................... DC
Minimum input frequency................... 0 Hz
Minimum input pulse width
(5 V pulse train) .............................. 1.5 µs
Overvoltage protection ....................... ±40 VAC + DC (powered on
or off)
Specifications
SCC-CI20
Input impedance
Input Characteristics
Signal > threshold .......................... 400 kΩ
Signal < threshold .......................... 10 MΩ
Threshold............................................. Zero crossing
Hysteresis............................................ 200 mV
Number of channels............................ 2 differential
Input range.......................................... 0 to 20 mA
Output range ....................................... 0 to 5 V
Gain error ............................................ ±0.1ꢀ of reading maximum
Offset error.......................................... ±0.± mV maximum
Input resistor....................................... 249 Ω, 0.05ꢀ, 0.25 W
Full power bandwidth......................... 10 kHz
Transfer Characteristics
Rise/fall time ...................................... 80 ms (0 to +±3ꢀ)
Step response ..................................... 220 ms at 90ꢀ; 3±0 ms at 99ꢀ
Output offset....................................... 5 mV max
Output offset temperature
coefficient....................................... 10 ppm/°C
Gain error temperature coefficient..... 100 ppm/°C
Nonlinearity......................................... 0.015ꢀ full scale
Output ripple ....................................... 30 mVpp at 10 Hz
Output range ....................................... 0 to +10 V
Recommended warm-up time............. 5 minutes
Power Requirements
Analog................................................. 100 mW
Power Requirements
Analog................................................. 100 mW
1Recommended; minimum 100 mV.
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13
Portable, Modular Signal Conditioning Modules
NI SCC-CO20 Isolated Current Output
NI SCC-DI01 Optically Isolated Digital Input
Model
Channel
Description
Part Number
Model
Channel
Description
Part Number
SCC-C020
1
Isolated current output
777459-33
SCC-DI01
1
Isolated digital input
777459-11
The National Instruments SCC-CO20 is a single-channel isolated current
output module that can provide up to 20 mA. This module is installation
rated for CAT I, and provides a safe working voltage of ±0 VDC. Because
the modules are isolated, you can connect two NI SCC-CO20 modules in
parallel to provide up to 40 mA.
The National Instruments SCC-DI01 is a single-channel, optically isolated
digital input module for sensing digital signals up to 30 VDC, including
TTL. This digital input module can sense both AC and DC signals and has
a status LED for visual verification of the module input status.
The NI SCC-DI01 fits in any SC-2345 socket J9 through J1±. When
you install an SCC-DI01 in one of these sockets, the digital signal is
automatically routed to a DIO line of the multifunction DAQ device. For
The SCC-CO20 plugs into either analog output socket, J17 or J18.
The voltage applied to the module from an analog output channel of a
multifunction DAQ device sets the current output. Because there are two example, socket J9 connects to digital line 0 of the data acquisition
output channels on DAQ devices, there are a maximum of two SCC-CO20 device. Because you can configure multifunction DAQ devices for input
modules per carrier.
or output on a line-by-line basis, you can have between one and eight
SCC-DI01 modules per carrier.
Note: Use the SCC-CO20 with only multifunction DAQ devices that have
Specifications
analog outputs.
SCC-DI01
Specifications
SCC-CO20
Input Characteristics
Number of channels............................
1
Input range.......................................... 30 VDC or 30 VAC
Output Characteristics
Number of channels............................
1
Digital Logic Levels
Output referencing.............................. Nonreferenced (floating)
Input range.......................................... 0 to 10 V
Output range ....................................... 0 to 20 mA
Voltage compliance............................. 12.5 V
Input current
5 V input ......................................... 1.5 mA
24 V input ....................................... 7.0 mA
Isolation............................................... 42 VDC from computer ground
Safety Isolation
Working common-mode voltage......... ±0 VDC, CAT I
Power Requirements
Digital.................................................. ±1 mW
Environment
Operating temperature ....................... 0 to 50 °C
Relative humidity ................................ 10 to 90ꢀ, noncondensing
Power Requirements
Analog................................................. 175 mW
Digital.................................................. ±45 mW
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14
Portable, Modular Signal Conditioning Modules
SCC-DO01 Optically Isolated Digital Output
NI SCC-RLY01 SPDT Relay
Model
Channel
Description
Part Number
Model
Channel
Description
Part Number
SCC-DO01
1
Isolated digital output
777459-12
SCC-RLY01
1
SPDT relay
777459-34
The National Instruments SCC-DO01 is a single-channel, optically
isolated digital output module for switching external devices. The
NI SCC-DO01 optical isolation circuitry handles up to 24 VDC and
includes a status LED for visual verification of the module output status.
The National Instruments SCC-RLY01 is a single-channel relay module
for switching external devices. It contains one single-pole, double-throw
(SPDT) relay capable of switching 5 A at 30 VDC or 250 VAC when used
with the SCC-±8 and 5 A at 30 VDC or 30 VAC when used with the
The SCC-DO01 includes an external switch with which you can configure SC-2345. The NI SCC-RLY01 uses positive logic. A digital high sets the
the power-up state of the module either high or low.
relay, and a digital low resets it.
The SCC-DO01 plugs into any SC-2345 socket between J9 and J1±.
The SCC-RLY01 plugs into any SC-2345 socket between J9 and J1±.
When you install the module in one of these sockets, the digital signal is When inserting an SCC-RLY01, a DIO line of the multifunction DAQ
controlled by a DIO line of the multifunction DAQ device. For example,
socket J9 connects to digital line 0 of the DAQ device. Because you can
device controls the digital signal. For example, socket J9 connects to
digital line 0 of the data acquisition device. Because you can configure
configure DAQ devices for input or output on a line-by-line basis, you can the DAQ devices for input or output on a line-by-line basis, you can have
have from one to eight SCC-DO01 modules per carrier.
from one to eight SCC-RLY01 modules per carrier.
Specifications
Specifications
SCC-DO01
SCC-RLY01
Number of channels............................
Nominal switching capacity ............... 5 A at 250 VAC1, 5 A at 30 VDC
Contact resistance .............................. 30 mΩ
Switching time
1
Output Characteristics
Number of channels............................
Compatibility....................................... TTL-compatible
Supply voltage range.......................... 5 to 24 VDC
1
Operate time (NC to NO)................ 5 ms (10 ms max)
Release time (NO to NC)................ 4 ms (5 ms max)
Maximum speed ................................. 30 operations/s at rated load
Contact lifetime .................................. 5 x 107 operations at 180
operations/minute (minimum)
Digital Logic Levels
Configuration 1
Output Voltage Level
between Vout and Vcom
Logic Level
Low (I01 = 0 mA)
High (I01 = 25 mA)
0 V
1The nominal switching voltage is 250 VAC when using a high-voltage backshell in an
NI SCC-±8 carrier. Otherwise the module is rated for only 30 VAC.
22 VDC at Vss = 24 V
3 VDC at Vss = 5 V
Configuration 2
Output Voltage Level
between Vout and Vcom
Logic Level
Low (I02 = 25 mA)
High (I02 = 0 mA)
0.4 V
Vss
Maximum continuous load current (Io)
Configuration 1............................... 8± mA
Configuration 2............................... 120 mA
Minimum load resistance (at Vss = 24 V)
RLOAD1 .......................................... 19± Ω
RLOAD2........................................... 184 Ω
Power Requirements
Digital.................................................. ±9 mW
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15
Portable, Modular Signal Conditioning Modules
NI SCC-FT01 Feedthrough
Specifications
SCC-PWR Series
SCC-PWR01
Input .................................................... +5 VDC ±5ꢀ from an external
source, or +5 VDC from
DAQ device
Model
SCC-FT01
Channel
2 SE/1 DI
Description
Feedthrough
Part Number
777459-01
Output.................................................. +5 VDC, 100ꢀ efficiency,
±15 VDC, ±2ꢀ efficiency
The National Instruments SCC-FT01 is a feedthrough module that offers
direct connection to analog input, analog output, digital I/O, and GPCTR
channels of the DAQ device. For analog input channels, you can connect
to either two single-ended or one differential channel. The NI SCC-FT01
includes a breadboard area for development of custom signal
conditioning circuitry.
SCC-PWR02
Input ................................................... 90 to 2±4 VAC, 1 A maximum
Output ................................................ +5 VDC, 1 A, ±15 VDC, ±0.3 A
SCC-PWR03
Input .................................................... 7 to 42 VDC
Output.................................................. +5 VDC, 75ꢀ efficiency,
±15 VDC, 4±ꢀ efficiency
If you install the SCC-FT01 in an analog input socket (J1 through J8,
SC-2345 or SC-2350) or analog output socket (J17 or J18, SC-2345 only)
then you have direct connection to the corresponding channels of the
DAQ device. You can add custom conditioning to the SCC-FT01 for these
analog inputs or outputs. In any socket, the SCC-FT01 module has access
to 5 and ±15 VDC power. If you use the breadboard area for custom
conditioning, you can cascade the SCC-FT01 with other SCC modules for
dual-stage conditioning.
Physical
Dimensions
SCC modules................................... 8.9 by 2.9 by 1.9 cm
(3.5 by 1.2 by 0.7 in.)
SC-2345 connector block................ 24.1 by 2±.2 by 3.94 cm
(9.5 by 10.3 by 1.± in.)
SC-2345 with configurable
connectors.................................. 30.7 by 25.4 by 4.3 cm
(12.1 by 10 by 1.7 in.)
External AC adapter
(for SCC-PWR02) ........................ 15.5 by 8.5 by 4.8 cm
(±.1 by 3.3 by 1.9 in.)
Connectors
SC-2345 cable................................. ±8-pin male SCSI II
SCC input ....................................... Removable screw terminal or
minithermocouple connector
SCC output ..................................... 20-pin right-angle male
connector
Certification and Compliance
SCC-AIxx.............................................. 300 V, CAT II working voltage
SCC-AO10............................................ 300 V, CAT II working voltage
European Compliance
EMC .................................................... EN ±132± Group I Class A, 10 m,
Table 1 Immunity
Safety.................................................. EN ±1010-1
North American Compliance
EMC .................................................... FCC Part 15 Class A using CISPR
Australia and New Zealand Compliance
EMC .................................................... AS/NZS 20±4.1/2 (CISPR-11)
For more information about certifications,
visit ni.com/certification.
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16
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