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Series 634ES Adjustable Range
Pressure Transmitter |
| 0.5% Full Span Accuracy, Ranges
to 5000 psi |
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 Series
634ES Transmitters sense a single pressure for air, compatible
gas or liquid and provide 4-20 mA output signal. Positive
pressure can be measured within an accuracy of ±0.5%
of span. The Series 634ES uses an isolated piezoresistive
pressure sensor to produce a resistance change across a wheatstone
bridge. Convenient 2-wire operation simplifies installation.
Zero and span adjustments are fully protected inside a rugged
die cast aluminum housing with durable gray polyurethane finish.
Enclosure is designed to meet NEMA 4X requirements.
See
Dimensions |
| SPECIFICATIONS |
Service: Compatible, gases &
liquids.
Wetted Materials: Types 316, 316L SS.
Accuracy: ±0.5% F.S.
Stability: ±1% F.S./yr.
Temperature Limits: 20 to 120°F (-6.67 to 48.9°C).
Compensated Temperature Limits: 20 to 120° (-6.67 to 48.9°C).
Pressure Limit: 1.5x maximum pressure range.
Thermal Effect: ±0.025% F.S./°F (0.045% F.S./°C).
Power Requirements: 10 to 35 VDC (2 wire).
Output Signal: 4 to 20 mA.
Zero and Span Adjustments: Protected potentiometers located
in auxiliary housing.
Loop Resistance: 1250 ohms DC max.
Current Consumption: 38 mA DC max.
Electrical Connections: Terminal block.
Process Connection: 1/4" (6.35 mm) female NPT x 1/2"
(12.7 mm) male NPT.
Enclosure Rating: Designed to meet NEMA 4x.
Mounting Orientation: Not position sensitive.
Weight: 1 lb, 10.6 oz (754 g).
Agency Approvals: CE. |
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Model
Number |
Range
in psi (bar) |
Min.
Range in psi (bar) |
Max.
Range in psi (bar) |
| 634ES-0 |
15
(1.035) |
7.5
(0.517) |
40
(2.76) |
| 634ES-1 |
30
(2.07) |
20
(1.38) |
40
(2.76) |
| 634ES-2 |
50
(3.45) |
40
(2.76) |
60
(4.14) |
| 634ES-3 |
100
(6.9) |
60
(4.14) |
120
(8.3) |
| 634ES-4 |
200
(13.8) |
100
(6.9) |
250
(17.2) |
| 634ES-5 |
300
(20.7) |
250
(17.2) |
350
(24.1) |
| 634ES-6 |
500
(34.5) |
350
(24.1) |
600
(41.4) |
| 634ES-7 |
1000
(69) |
600
(41.4) |
1250
(86) |
| 634ES-8 |
2000
(138) |
1250
(86) |
2500
(172) |
| 634ES-9 |
4000
(276) |
2500
(172) |
5000
(414) |
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