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:
MODEL 423 PRESSURE TRANSMITTER
4-20 mA, 0-3 to 5000 psi - Designed for Overhead Junction Boxes

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.
Performance characteristics
Full Scale Pressure Ranges |
0-3 thru 0-5000 PSI (0-0.2 to 0-345 bar), 0-15 PSIV (0-1.03 barV)* |
Zero balance |
≤± 0.25% FSO |
Non-Linearity (Best Fit Straight Line) |
≤±0.06% FSO standard, optional ±0.04% |
Hysteresis & Repeatability |
≤±0.06% FSO standard |
Full Scale Output |
16 mA ≤ ± 0.25% FSO |
Long Term Stability |
≤± 0.3% FSO per 6 months |
Compensated Temperature* |
32°F to 170°F (0° to 77° C) |
Operating Temperature Range |
32°F to 180°F (0°C to 82°C) |
Storage Temperature |
-40°F to 185°F (-40°C to 85°C) |
Maximum Fluid Temperature |
-40°F to 250°F (-40°C to 121°C) |
Combined Thermal Effect (zero & span) |
≤±2% FSO per 100°F typical |
* Modified specification for vacuum and compound ranges: |
Compensated Temperature Range32°F to 170°F (0°C to 77°C) |
Electrical characteristics
Supply Voltage |
8 to 28 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 CNo Connection
Pin DNo Connection
Pin EAC ground (standard)
Pin FNo connection
|
Connector Options |
BP Micro change (M12)
BN 4-pin bayonet
ZU Cable gland |
Materials of Construction
Wetted Parts |
316L stainless steel |
Housing |
316 stainless steel |
Weight |
4 oz nominal |
Identificatios |
Laser etched onto body |
Mechanical characteristics
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 |
Mounting |
May be supported by process piping |
Drawings

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Designed for Overhead Junction Boxes
Model 422 is small in size, but packsa high-performance punch. The electronics and silicon sensor design have a combined accuracy of better than ±0.08%.
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Overview of Available Certificates and Approvals: Visit this link, which will take you to a page with a comprehensive list of current certificates and approvals for our products. Here, you can verify that our offerings meet the highest standards of quality and safety. More information
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