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.



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