High performance pressure transducer

Model 28M Barometric Pressure Transmitter

Model 28M Barometric Pressure Transmitter

Viatran's Model 28M pressure sensor is among our most accurate pressure transmitters for industrial test and research applications. The 28M measures barometric pressure from 85 to 108 kPa with Improved Accuracy of ≤±0.06% FSO available.

Inquiry system 

Configure your own product according to your requirements and needs. If you are unsure of the configuration, provide us in the notes the necessary information about the existing sensor or product, even a competitor. We will be happy to help you find an alternative Viatran product. If your request is urgent, let us know. We will do our best to help you resolve this situation to your satisfaction as quickly as possible. If we have all the information, we are able to offer a model with minor differences, which is in stock and you can have another product available the next day.

If you need more information do not hesitate to contact us.

Viatran Configuration Code:



Full Scale Pressure Ranges (FSPR):
850 to 1080 mBar Absolute
(Optional ranges can be factory set from 0 to 1080 mBarA with a minimum 240 mBarA span)
Nonlinearity (Best Fit Straight Line):
≤±0.1% FSO (≤±0.06% FSO with DN option)

Accuracy (RSS*):

≤±0.21% FSO
≤±0.13% FSO each


≤±0.13% FSO each

Full Scale Output (FSO):

5 Vdc ≤±0.5% FSO at 21°C (70°F) Standard
10 Vdc ≤±0.5% FSO at 70°F (21°C) Optional
Long Term Stability: ≤±0.9% FSO per 6 months
  Compensated Temperature Range: 0° to 77° C (32°F to 170°F)
  Process Media Temperature Range: -40°C to 121°C (-40°F to 250°F)
  Ambient Operating Temperature Range: -40°C to 85°C (-40°F to 185°F)
Storage Temperature Limits: -40°C to 85°C (-40°F to 185°F)
  Temperature Effect on Zero: ≤±0.018% FSO per 1°C (1.8°F)
  Temperature Effect on Span: ≤±0.018% FSO per 1°C (1.8°F)



Supply Voltage:
8 to 30 Vdc at 3.5 mA nominal, 5 mA max
(12 to 30 Vdc for 10 Vdc output option)
Power Supply Regulation:
≤±0.01% FSO per volt change over the supply voltage range
Output Signal:
0 - 5 Vdc (Standard)
0 - 10 Vdc (Optional)
  Load Resistance: 100K Ohms minimum

Circuit Protection:

Input polarity may be reversed. Output may be short-circuited indefinitely Over voltage protection to 1000 volts according to EN61000-4-5

Insulation Resistance

<5 nS to case ground

Response Time

<2 mSec to reach 90% of full scale

RFI / EMI Suppression

CE EMC compliant per IEC EN 61326-1 & 61326-2-3 Annex BB, CE marked

Electrical Connection

Bendix / Amphenol PT02E-10-6P, mates PT06E-10-6S (SR)

Pin Outs

Pin A + Power
Pin B - Power
Pin C + Signal
Pin D - Signal
Pin E No Connection
Pin F No Connection






Wetted Parts
316 stainless steel
304 SS with an Aluminum alloy, black zinc-cobalt plated electrical connector
283 g (10 oz)
  Identification Laser etched onto body



Pressure Connection:
G-1/4 female
Proof Pressure:
3100 mBar (45 PSI)
Burst Pressure:
5170 mBar (75PSI)

Pressure Cavity Volume:

1.5 mL


May be supported by process piping







DIN 43650
BL WK6-32S


BQ (K)PT02H-10-6P
BR CF3102E-14S-6P
ZU Direct Cable: 79°C (175°F) max temperature 

Y( )

Multiple pressure ports available. Consult factory


Extended temperature operation: -40°C to 77°C (-40°F to 170°F) 


Improved temperature compensation ( ± 0.5% FSO per 55.6°C (100°F) zero and span shift)


Special ranging


Modified full scale output


Improved Accuracy (Non Linearity) ≤±0.06% FSO


Cleaning for oxygen service
EA Special calibration run


Customer specified identification


Scaled with Process Meter


1/8" Barbed (Male) Port