PR-21SR/80427.35-2.5 [ETC]
TRANSMITTER PIEZORESITIV ; 变送器PIEZORESITIV\n
| 型号： | PR-21SR/80427.35-2.5 |
| 厂家： | 
ETC |
| 描述： | TRANSMITTER PIEZORESITIV
|
| 文件： | 总2页 (文件大小：80K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
KELLER
PIEZORESISTIVE TRANSMITTERS AND TRANSDUCERS
INDUSTRIAL APPLICATIONS. ABSOLUTE AND GAUGE REFERENCES.
SERIES 21 R
This new range of KELLER OEM pressure transmitters and transducers offers the user the
high accuracy and stability of the KELLER piezoresistive pressure capsule in a low cost OEM
package. Applications include refridgeration, hydraulic controls, air compressors, ink jet printers,
vacuum pumps etc.
The silicon sensor is mounted in an all welded oil filled stainless steel capsule, providing a
highly stable measuring cell with negligible hysteresis, unrivalled linearity, high output and a
life of millions of pressure cycles.
The Series 21R use the Series 6 capsule, which is of all welded 316L stainless steel construc-
tion. Transducers are supplied with 2 metres of screened cable, or a square connector and
mating plug, type mPm-193.
Accuracy is achieved by very large scale predictable production quantities of the pressure
capsule (over 2 million produced today).
Reliability is assured by the inherent properties of the perfectly elastic silicon chip, and ensuring
that neither the pressure media nor the reference media (in the gauge version) come into
contact with any sensitive parts.
Temperature Compensation: Each unit is fully tested and compensated. Span errors are
reduced by selecting the semiconductor doping levels so that the gauge factor of the strain
gauges (∆R) is constant with temperature. Thermal zero compensation is achieved by an
automatic test procedure which fits a single resistor across one arm of the bridge.
Shock and vibration performance is excellent due to the silicon chip being suspended in the
oil-filled capsule. It is isolated mechanically from the body. Similarly, the effects of mounting
torque are eliminated.
SERIES 21R WITH CABLE
(PLAN 80096.2)
ELECTRICAL CONNECTIONS
2-WIRE 3-WIRE
4-WIRE
G 1/4"
GREEN
GND
+OUT
+VCC
GND (WHITE)
+OUT (RED)
+VCC (BLACK)
-OUT (BLUE)
ø 17
WHITE OUT/GND
BROWN +VCC
Cable Connection
ø 18,6
~ 50
HEX 19
HEX 19
2-WIRE
3-WIRE
4-WIRE
SERIES 21R WITH PLUG
(PLAN 80096.3)
mPm-Connector
(Contact Spacing 9,4 mm)
1
2
3
4
OUT/GND
GND
+OUT
+VCC
GND
+OUT
+VCC
-OUT
G 1/4"
+VCC
ø 17
12
8
~ 56
Subject to alterations
4/99
KELLER AG für Druckmesstechnik
KELLER Gesellschaft für druckmesstechnik mbH
St. Gallerstrasse 119
Schwarzwaldstrasse 17
CH-8404 Winterthur
D-79798 Jestetten
Tel. 052 - 235 25 25
Tel. 07745 - 9214 - 0
Fax 052 - 235 25 00
Fax 07745 - 9214 - 50
Companies approved to ISO 9001 / EN 29001
Internet: http://www.keller-druck.ch
druckmesstechnik
KELLER
SPECIFICATIONS
SERIES 21 R
PR 21 R *
PAA 21 R
PA 21 R
0,5
1,0
1,0
1,0
2,5
1,6
1,6
1,6
3
2,5
2,5
2,5
6
6
6
6
8
10
10
10
15
16
16
16
25
bar vented gauge
bar absolute
25
60
50
75
100
150
160
250
250 400 600 bar sealed gauge
600 600 800 bar
Over Range
2
* mPm connector only, not cable
Transmitter
Transducer
Signal Output
4…20 mA
0…5 Vdc
1…6 Vdc
0…10 Vdc
0…100 mV
Supply Voltage
8…28 Vdc
13…30 Vdc
8…28 Vdc.
10 Vdc
Current required
Zero/Span Tolerance
Configuration
up to 20 mA
1% FS
4 mA max.
1% FS
2 mA max.
1% FS**
1% FS**
±0,1% FS
4 wire
2 wire
3 wire
Electrical Connection:
mPm 193 micro or
cable 2m, 4 core
OUT/GND: Pin 1 / White
GND:
+OUT: Pin 2 / White
+Vcc: Pin 3 / Brown
Pin 1 / Green
GND: Pin 1 / White
+OUT: Pin 2 / Red
+Vcc: Pin 3 / Black
-OUT: Pin 4 / Blue
0,2% typ. / 0,5% max.
+Vcc: Pin 3 / Brown
Linearity
0,2 % typ. / 0,5% max.
1% max. / 0,5% typ.
Total Error Band*
+18…+22°C
0,5% max.
1,0% max.
2,5% max.
Total Error Band*
0…+50°C
2% max. / 1,0% typ.
4% max. / 2,5% typ.
Total Error Band*
-20…+80°C
* Total error band includes linearity, hysteresis, zero and span offsets, temperature effects and repeatability.
**Signal at zero ≈ 50 mV --> see chart
Signal at zero for 0…5 V (0…10 V) transmitters
5V/10V
≈ 50 mV
FS
1%FS
Maximum Temperature
Pressure Port
-20…+80°C (on demand -40…100°C)
G 1/4 male parallel to ISO 228 (1/4”BSP)
Compatible with 316L stainless steel
75 gramme
Pressure Media
Weight
Electromagnetic Compatibility
Enclosure Protection
Insulation
CE marked: Fully tested to EN 50082-2 and EN 50082-1
IP65
Greater than 100 MΩ at 50 Vdc
1 minute at 500 Vdc
Insulation Test
User Notes: Basic 100 mV transducers are calibrated at 10 Vdc to produce 0…100 mV signal (nominal), and require a stable voltage supply.
They can be operated at 5 Vdc to give 0…50 mV signal or 20 Vdc to give 0…200 mV signal. The circuit is a compensated resis-
tance bridge and is completely passive with no diodes or reactive components. Bridge resistance is 3,5KΩ nominal.
The 8…28 V supply transducer is fitted with an internal regulator. The mPm micro connector has a PG7 cable gland entry suitable
for cables between 4 and 6 mm diameter. Screw terminals and solder lags are provided. The G 1/4 pressure connection has an
integral Viton seal at the shoulder. Alternatively it may be sealed using a face seal on the flat nose of the pressure port.
Subject to alterations
4/99
KELLER AG für Druckmesstechnik
KELLER Gesellschaft für druckmesstechnik mbH
St. Gallerstrasse 119
Schwarzwaldstrasse 17
CH-8404 Winterthur
D-79798 Jestetten
Tel. 052 - 235 25 25
Tel. 07745 - 9214 - 0
Fax 052 - 235 25 00
Fax 07745 - 9214 - 50
Companies approved to ISO 9001 / EN 29001
Internet: http://www.keller-druck.ch
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