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Intrinsically Safe Pressure Transmitters with ATEX

0 to 300 psi, Gauge


Item# PX835-300GI

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-9 $873.75
10-24 $830.06
25-49 $812.59
50-99 $777.64
100+ $760.16

In stock

Lead Time (If not in stock): 10 weeks
0 to 300 psi, Gauge PX835-300GI PX835-300GI
  • Oil Field Equipment
  • Upstream Oil and Gas Production
  • Natural Gas Compression and Transfer Control
  • Alternative Energy Projects

PX835-300GI Model Options

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Pressure Range
Pressure Type
Additional Features
Accuracy Class
Accuracy Value(compensated range)
Output Signal
Electrical Output
Pressure Port Size
Pressure Port Type
Operating Temperature Range

  • Input Resistance 100 MΩ @ 30 Vdc
  • Maximum Ambient Humidity 0 to 95% RH (non-condensing)
  • Vibration 10 g RMS
  • Shock 100 g peak

The PX835 explosion proof / flame proof pressure transmitter is ideal for a broad spectrum of pressure sensing requirements, requiring hazardous location approvals for explosion proof, flame proof or intrinsically safe. The PX835 is designed with an all welded stainless steel case and manufactured to provide the user with accurate, reliable, and stable output data. This is accomplished through the use of state of the art sensor technology combined with digital calibration to provide extremely linear and precise performance over the entire specified pressure and temperature range.

Output: 4 to 20 mAdc (2-wire)
Supply Voltage: 12 to 32 Vdc Vmin = 12 V + (0.022A x loop res)
Insulation Resistance (Circuit to Case): 100M Ω @ 30 Vdc
Circuit Protection: Reverse polarity and mis-wire protected
Accuracy: ±0.5% TP; ±0.40% BFSL includes non-linearity, hysteresis and non-repeatability, zero offset and span setting errors (add 0.05% for ranges above 5000 psi)
Stability: ≤±0.25% span/year @ ref conditions (21°C/70°F)
Response Time: 2 ms
Storage/Process/Operating Temperature: -40 to 125°C (-40 to 257°F)
Compensated Temperature: -20 to 85°C (-4 to 185°F)
Temperature Effects (Over Comp Range): 2% span
Humidity Effects: No performance effects 0 to 95% RH, non-condensing
    Shock: 100 g peak, 11 ms
    Random: 10 g RMS, 20 to 2000 Hz
    Sweep: 50 to 2000 Hz, 5 g peak
Position Effect: ±0.02% typical
Electrical Termination: ½ NPT male conduit fitting and 4.6 m (15') cable with flying lead termination
Pressure Connection: ¼ NPT male
Environmental Rating: NEMA 7, 9 (IP65)
Hazardous Area Certifications:
    Explosion Proof - cUL (USA/CNL):
    Specify PX835; Class I, Div 1 & 2, Groups A, B, C, and D; Class II, Div 1 & 2, Groups E, F, and G
    Flame Proof - ATEX: Specify PX835 II 2 G; Ex d IIC T4
    Intrinsically Safe - FM/CSA: Class I, Div 1; Class I, Div 2, non-incendive
    CE Compliance: EN 61326: 1997 + A1: 1998 Annex A, A2/2001 Heavy Industrial Immunity (Annex A table A.1); Light Industrial/Residential Emission (Table 4)
Wetted Parts: 316SS diaphragm and pressure port
Case: 304 SS
Cable Gland: Fits cable diameter 9 to 12 mm (0.35 to 0.47")
Weight: Approximately 254 g (8 oz)

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Do these have span and zero pods that can be adjusted?

Asked by: Tc41
no, we do not have adjustment pots on the PX835
Answered by: rkent
Date published: 2021-06-21

Do you know what the Performance Level (a-e) of this sensor is?

Asked by: ScottB
Thank you for your inquiry, that information can be found in the manual under hazardous area certification.
Answered by: rkent
Date published: 2022-09-08

Where are the wiring diagrams and ancillary parts recommended and/or required for approved Intrinsicly Safe installation? The User Guide briefly references "See Omega drawing #825A027", but a search for this term brings up only the User Guide.

Asked by: CDunn
Thank you for your inquiry, this document can be obtained by contacting us at
Answered by: rkent
Date published: 2022-11-02

Do these carry a GOST or GOST R compliance certification (Russian Metrology)?

Asked by: SDoll
These do not carry that certification, all the certifications that are available with this device are noted in the data sheet link above.
Answered by: PressureENG
Date published: 2020-04-09
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