High performance pressure transducer

Model 423 Pressure Transmitter

Model 423 Pressure Transmitter

Model 423 is small in size, but packs a high-performance punch. The electronics and silicon sensor design have a combined accuracy of better than ±0.08%.

Model 423 is a versatile high performance test and control sensor that offers a fast response time, noise immunity, and is CE compliant. Viatran takes pride in offering excellent customer support combined with a technically superior product.

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):
0-3 thru 0-5000 PSI (0-0.2 to 0-345 bar), 0-15 PSIV (0-1.03 barV)*
Nonlinearity (Best Fit Straight Line):
≤±0.06% FSO standard, optional ±0.04%

Zero balance

≤± 0.25% FSO
≤±0.06% FSO standard


≤±0.06% FSO standard

Full Scale Output (FSO):

16 mA ≤ ± 0.25% FSO
Long Term Stability: ≤± 0.3% FSO per 6 months
  Compensated Temperature Range: 32°F to 180°F (0°C to 82°C)
  Ambient Operating Temperature Range: -40°F to 185°F (-40°C to 85°C)
Storage Temperature Limits: -40°F to 250°F (-40°C to 121°C)

Maximum Fluid Temperature

250°F (121°C)

Combined Thermal Effect (zero & span)

≤±2% FSO per 100°F typical

* Modified specification for vacuum and compound ranges:

Compensated Temperature Range 32°F to 170°F (0°C to 77°C)



Supply Voltage:
8 to 30 Vdc
Power Supply Regulation:
<±0.05% FSO per Volt Output Signal
Output Signal:
4 - 20 mA

Circuit Protection:

Short circuit and reverse polarity protected

Voltage Spike Protection

Withstand 1000 volt spike per EN6100-4-5

RFI/EMI Suppression

CE marked, EN 61326

Insulation Resistance

<5nS conductance

Response Time

<1.5 millisecond

Electrical Connections

6-pin bayonet (standard)


Pin Outs

Pin A +Power / Signal
Pin B -Power / Signal
Pin C No Connection
Pin D No Connection
Pin E AC ground (standard)
Pin F No connection

Connector Options

BP Micro change (M12)
BN 4-pin bayonet
ZU Cable gland



Wetted Parts
316L stainless steel
316 stainless steel
4 oz nominal
  Identification Laser etched onto body



Pressure Connection:
1/8" NPT female
Proof Pressure:
3x range or 1,200 PSI (whichever is less) for 0-3 thru 0-500 PSI
3x range or 9,000 PSI (whichever is less) for 0-1,000 thru 5,000 PSI
Burst Pressure:
5x range or 2,400 PSI (whichever is less) for 0-3 thru 0-500 PSI
5x range or 10,000 PSI (whichever is less) for 0-1,000 thru 0-5,000 PSI

Pressure Cavity Volume:

1.5 mL


May be supported by process piping