433201A [EXTECH]
Microprocessor Calibrator/Thermometer; 微处理器校准器/温度计
| 型号： | 433201A |
| 厂家： | 
EXTECH INSTRUMENTS CORPORATION. |
| 描述： | Microprocessor Calibrator/Thermometer |
| 文件： | 总8页 (文件大小：164K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
User's Guide
Microprocessor Calibrator/Thermometer
Models 433201A and 433202A
Introduction
Congratulations on your purchase of the Extech 433201A (115V) or 433202A (220V)
Microprocessor Thermocouple Calibrator/Thermometer.
In the ‘Measurement’ mode, a millivolt (mV) signal is accepted from a thermocouple and
is displayed on the 4-digit LCD display. A built-in temperature offset feature can be used
to compensate for variations found in standard thermocouples. By adjusting the offset,
measurement accuracy for a particular thermocouple can be optimized for a particular
temperature.
In the ‘Source’ mode, a millivolt signal is output to an external device with the
corresponding temperature (according to standard temperature tables) displayed on the
LCD display. Preset temperature settings (source mode only) according to thermocouple
type are stored in five memory locations for easy recall.
If desired, the meter can be switched to the mV mode where Measurement and Source
values can be displayed in millivolts rather than temperature.
Careful use of this device will provide years of reliable service.
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Description
1. LCD display – Temperature values can be displayed in oC/oF or in millivolts. The
adjustable display can be easily moved to the best viewing angle.
2. POWER/MODE button – Press to power meter on/off and to select the desired
mode of operation. With the meter powered on, momentarily press the
POWER/MODE button (<2 sec) to toggle between MEASURE and SOURCE mode.
In MEASURE mode the meter displays the temperature or mV value for an attached
thermocouple or thermocouple simulator. In the SOURCE mode, the meter outputs
a mV signal.
To power off, press and hold the POWER/MODE button for more than 2 seconds.
3. FINE/COARSE output adjustment buttons – Use the ▼/▲ buttons to set the desired
temperature. Press and hold for COARSE adjustment; momentarily press for FINE
adjustment.
4. oC/oF button – Press to select the desired unit of measure
5. TYPE button – Press to select a thermocouple type
6. MEM – In SOURCE MODE, the Memory button provides access to five memory
locations with preset output values depending on which thermocouple type is being
used.
Memory
Location
Type
Type T
Type E
mV
J, K, C, R, S, N
32.0oF
(0.0oC)
212.0oF
(100.0oC)
932.0oF
(500.0oC)
1382.0oF
(750.0oC)
1832.0oF
(1000.0oC)
32.0oF
(0.0oC)
32.0oF
(0.0oC)
0mV
M1
M2
M3
M4
M5
212.0oF
(100.0oC)
392.0oF
(200.0oC)
572.0oF
(300.0oC),
752.0oF
(400.0oC)
212.0oF
(100.0oC)
482.0oF
(250.0oC)
932.0oF
(500.0oC)
1382.0oF
(750.0oC)
10.00mV
25.00mV
40.00mV
50.00mV
7. Output/Input mini connector – Thermocouples, thermocouple wire, and calibration
cables are connected here.
8. AC adaptor/recharger jack
9. Battery compartment – Houses the supplied 9V Nickel Metal Hydride rechargeable
battery. An alkaline battery can also be used.
10. Neck Strap Posts- Attach the neck-strap to the two posts on the front corners of the
meter.
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433201A V1.5 05/07
Operation
Measurement Mode
1. Open the meter lid and press the POWER/MODE button to turn the meter on.
“MEASURE” will be displayed on the LCD screen. Check the battery if the meter
display does not switch on.
Note: For best accuracy, remove any input connectors before turning the unit
ON. The meter will not perform a correct self calibration if there is an input
connected.
2. Select the thermocouple type using the TYPE button. The T/C type selected will be
indicated along the bottom of the display. Each time the TYPE button is pressed
the indicator will advance one type.
3. Select oC or oF via the oC/oF button.
4. Carefully insert the thermocouple probe into the sub-miniature female connector on
the side panel.
5. Read the temperature on the LCD display.
6. To turn the meter off, press and hold the POWER/MODE button for more than 2
seconds.
Offset Adjustment
Thermocouples produce an output signal that is non-linear. In some instances it may be
necessary to offset the reading to compensate for the non-linearity of the thermocouple.
1. In Measurement Mode, press and hold the ▼/▲buttons together until ”OFS” is
displayed on the LCD.
2. Use the ▼/▲ buttons to adjust the offset from -9.0 to 9.0oF (-5.0 to 5.0oC)
3. Press and hold the ▼/▲buttons together for less than 2 seconds to save the offset
and return to Measurement Mode.
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Source Mode
1. Open the meter lid and press the POWER/MODE button to turn the meter on.
Check the battery if the meter display does not switch on.
2. Momentarily (<2 sec) press the POWER/MODE button to select the SOURCE
mode. “SOURCE” will be displayed on the LCD screen.
3. Select the thermocouple type of the device to be calibrated using the TYPE button.
The T/C type selected will be indicated along the bottom of the display. Each time
the TYPE button is pressed the indicator will advance one type
4. Select °C or °F via the °C/°F button.
5. Carefully insert the calibration cable into the sub-miniature female connector on the
side panel.
Note: For greater accuracy, especially if there is a difference between the internal temperature of
the calibrator and the device under calibration, use a thermocouple cable rather than the copper
cable that is supplied with the calibrator. The thermocouple cable must match the thermocouple
type of the device under calibration.
6. Connect the other end of the cable to the device to be calibrated.
Note: The SOURCE icon will blink until the output has stabilized.
7. Allow time for the calibrator and the external device to settle to the same
temperature. This may take up to 30 minutes or longer if the devices were stored or
carried from a colder/warmer environment prior to use.
8. Use the ▼/▲ FINE/COARSE adjustment buttons or the MEM button to select the
desired output temperature. The output temperature is displayed on the LCD
display.
9. To turn the meter off, press and hold the POWER/MODE button for more than 2
seconds.
Displaying in mV units
Press and hold the oF/oC button for more than 2 seconds until “mV” appears on the LCD
display. Press and hold the button again for more than 2 seconds to return to temperature
units (oF/oC).
Auto Power Off
When the meter is turned on, the auto power off function is enabled. It will automatically
shut the meter off 10 minutes after the last button press. To disable Auto Power Off, press
and hold the TYPE button for 2 seconds until “nAtP” is displayed.
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433201A V1.5 05/07
Battery Replacement and Recharging
• If the meter is to be used for an extended period of time, use of the AC adaptor is
recommended.
• For portable operation or quick checks use the rechargeable 9V Nickel Metal Hydride
battery or a 9V alkaline battery.
• Turning the meter OFF when not in use will prolong battery life.
• When the battery icon flashes, replace or recharge the battery. Note that only the
supplied 9V NiCad battery can be recharged.
• Replace the battery using the following procedure:
1. Fully open the meter.
2. Insert a coin or flat screwdriver into the slot at the back of the meter.
3. Pop the battery compartment cover and then carefully remove it in the direction of
the arrow.
4. Replace the battery and snap the cover back in place.
• Recharge the supplied 9V Nickel Metal Hydride battery using the following procedure:
1. Turn the meter off.
2. Ensure that the rechargeable battery is installed.
3. Plug the charger/adaptor into the meter.
4. Plug the charge/adaptor into an AC outlet source.
5. Charge the battery for 24 to 48 hours before its first use. An overnight charge will
enable continuous use for approximately 45 minutes. A full charge will provide one
hour of continuous use.
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433201A V1.5 05/07
Specifications
Calibration & Measurement Ranges
Resolution
0.1° to 999.9°
1° above 999.9°
Accuracy
Type J
Type K
Type T
Type E
Type C
Type R
Type S
Type N
-58 to 1830OF (-50 to 1000OC)
-58 to 2498OF (-50 to 1370OC)
-184 to 752OF (-120 to 400OC)
-58 to 1382OF (-50 to 750OC)
32 to 3272OF (0 to 1800OC)
32 to 3182OF (0 to 1750OC)
32 to 3182OF (0 to 1750OC)
-58 to 2372OF (-50 to 1300OC)
± (0.15% of reading
+ 1.8°F or 1°C)
1°
Voltage -5.00mV to +55.00mV
0.01mV
±2digits
General Specifications
Cold junction compensation
Input impedance
0.02°F per °F (0.03°C per °C)
10MΩ
Maximum voltage applied between any
terminal and earth ground or between
any two terminals
60mV
Storage temperature:
Operating temperature:
Relative humidity:
Approvals
-30C to +80C
-5C to +70C
0-85%
CE
Thermocouple Standard and Scale
Sampling time
NIST 175, ITS-90
Two (2) readings per second
Display
4-digit (0 to 9999) LCD display with
thermocouple type status indication
Power
9V alkaline battery, 9V Nickel Metal Hydride
rechargeable battery, or AC adaptor/charger
Supplied accessories
Thermocouple calibration cable (white)
terminated with sub-miniature connectors, K-
type Thermocouple cable (yellow) terminated
with sub-miniature connectors, 9V Nickel Metal
Hydride rechargeable battery, neck-strap, AC
adaptor/charger, carrying case.
Dimensions
Weight
4.7 x 3.8 x 1.8” (118 x 96 x 45mm)
15 oz. (426g)
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433201A V1.5 05/07
Warranty
EXTECH INSTRUMENTS CORPORATION warrants this instrument to be free of defects in
parts and workmanship for one year from date of shipment (a six month limited warranty
applies to sensors and cables). If it should become necessary to return the instrument for
service during or beyond the warranty period, contact the Customer Service Department at
(781) 890-7440 ext. 210 for authorization or visit our website www.extech.com for contact
information. A Return Authorization (RA) number must be issued before any product is
returned to Extech. The sender is responsible for shipping charges, freight, insurance and
proper packaging to prevent damage in transit. This warranty does not apply to defects
resulting from action of the user such as misuse, improper wiring, operation outside of
specification, improper maintenance or repair, or unauthorized modification. Extech
specifically disclaims any implied warranties or merchantability or fitness for a specific
purpose and will not be liable for any direct, indirect, incidental or consequential damages.
Extech's total liability is limited to repair or replacement of the product. The warranty set forth
above is inclusive and no other warranty, whether written or oral, is expressed or implied.
Calibration and Repair Services
Extech offers repair and calibration services for the products we sell. Extech also provides
NIST certification for most products. Call the Customer Service Department for information
on calibration services available for this product. Extech recommends that annual
calibrations be performed to verify meter performance and accuracy.
ꢀ
Support line (781) 890-7440
Technical support: Extension 200; E-mail: support@extech.com
Repair & Returns: Extension 210; E-mail: repair@extech.com
Product specifications subject to change without notice
For the latest version of this User’s Guide, Software updates, and other
up-to-the-minute product information, visit our website: www.extech.com
Extech Instruments Corporation, 285 Bear Hill Rd., Waltham, MA 02451
Copyright © 2007 Extech Instruments Corporation
All rights reserved including the right of reproduction in whole or in part in any form.
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