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Pressure Transmitter Transducer 830 Series Gems Sensors

Gems Sensors Pressure Transmitter Transducer

The 830 Series is designed for wet-to wet differential pressure measurements of liquids or gases. They feature fast-response capacitance sensors that respond approximately 20x faster than conventional fluid-filled transducers! Sensors are couple
Stock
-1
Code
830 Series

Gems Sensors Pressure Transmitter Transducer

 Wet/Wet Differential Pressure Transducer 

 
 

Quick Specs...

  • Liquid Media on Both Ports
  • Bleed Screws for Accurate Results
  • Optional Manifold for Easy Installation 

Overview / Design Principle:

The 830 Series is designed for wet-to wet differential pressure measurements of liquids or gases. They feature fast-response capacitance sensors that respond approximately 20x faster than conventional fluid-filled transducers! Sensors are coupled to signal conditioned electronic circuitry for highly accurate, linear analog output proportional to pressure. Both unidirectional and bidirectional models are available for line pressures up to 250 psi. These units feature bleed ports that allow for total elimination of air in the line and pressure cavities.

How they Operate:

A unique isolation system transmits the motion of the differential pressure sensing diaphragm from the high line pressure environment to the dry enclosure where it moves one of a pair of capacitance plates proportionally to the diaphragm movement. Electronic circuitry linearizes output vs.pressure and compensates for thermal effects of the sensor.

Applications:

  • Energy Management Systems
  • Process Control Systems
  • Liquid & Gas Flow Measurement
  • Filter Monitoring
  • Liquid Level Management
Specifications
 Input

Pressure Range

1 to 100 psid

Proof Pressure

See ordering chart

Burst Pressure

See ordering chart

Common Line Pressure

< 250 psia

Fatigue Life

>1 million cycles

Performance  

Supply Voltage (Vs)

9-30 Vdc (13-30 Vdc for 10 Vdc output)

Long Term Drift 

0.5% FS/year

Accuracy

±0.25% FS

Thermal Error Zero

0.02% FS/°F (0.036% FS/°C)

Thermal Error Span

0.02% FS/°F (0.036% FS/°C)

Compensated Temperature

30°F to +150°F (-1°C to +65°C)

Operating Temperatures

0°F to +175°F (-18°C to +80°C) 

Storage Temperatures

-65°F to +250°F (-54°C to +121°C)

Zero Tolerance

.5% FS

Span Tolerance

.5% FS

Mechanical Configuration

Pressure Port

See ordering chart

Wetted Parts

17-4 PH Stainless Steel, 300 Series SS, Viton and Silicone

Electrical Connection

7/8" knockout for 1/2" conduit; Screw terminal strip

Enclosure

Stainless Steel, Aluminum

Vibration

5g Peak Sinusoidal; 5 to 500 Hz

Acceleration

10g

Shock

50g

Approvals

CE

Weight

15 oz

Voltage Output Units    

Output

0-5 Vdc or 0-10 Vdc (3-wire)

Min. Load Resistance 

5000K ohms

Current Output Units    

Output

4-20 mA (2 wire)

Max. Loop Resistance

(Vs-9) x 50 Ohms

Optional Three-Valve Manifold   

Wetted Parts

360 Brass, Copper 122, Acetal plug valves and Nitrile O-rings

Valve Type 

90 degree on/off

Process Connections

1/4" NPTF

Dimension

7.05" x 6.25" x 2.16" D

Weight

2.5 lbs.

 Dimensions:
 830DIM1
    in/mm
A  3.05/77
B  1/4"-18 NPT High Pressure Port
C   2.44/62
D  Bleed Screws
 
 830DIM2
    in/mm
A  2.15/55
B  2.00/51
C  1.94/49
D  .875/22DIA. Conduit Opening
E  1/4"-18 NPT Low Pressure Port
F  1.50/38
G  1.63/41
H  1.00/25
I  Transducer Mounting Holes
 J   1.63/41
 
 830DIM3
    in/mm
A  3.00/76
B  2.50/64
C  0.43/11
D  Notched for Clamp Mounting
  E   0.52/13
  F   0.88/22
G  1.30/33
H   0.156/4.0
 
 830DIM4
    in/mm
A  7.05/179
B  4.00/102
C  0.156/4
D  0.38/10
E  3.25/83
F  0.31/8
G  5.63/143
H  7.83/199
I  5.80/147
J  2.33/59
 Valve Schematic
 830DIM5
    in/mm
A  Shunt Valve
B  Shut-off Valves

 

Product Documentation

830 Series
830 Series - Download PDF
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