Posted in | Sensors

Model 422: Pressure Transmitter for Overhead Junction Boxes

Viatran’s Model 422 pressure transmitter is compact yet offers a high performance punch. The electronics and silicon sensor design have an integrated precision of over ±0.08%.

The Model 422 features pressure ranges of 0–3 to 5000 psi and an output of 0–5 Vdc. It has been designed specifically for overhead junction boxes.


Low-pressure applications
All stainless steel construction
High precision
Shunt calibration circuit option


The Model 422 pressure transmitter is a flexible high-performance test and control sensor that provides noise suppression, fast response time and CE compliance. Viatran feels proud in providing outstanding customer support together with a technically excellent product. Variants of this model are used across the industrial and automotive industries.


Table 1. Source: Viatran

. . .
Full Scale Pressure Range (FSPR) 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 5 Vdc ≤±0.25% FSO  
Long Term Stability ≤±0.3% FSO per 6 months  
Compensated Temperature* 32°F to 180°F (0°C to 82°C)  
Operating Temperature Range -40°F to 185°F (-40°C to 85°C)  
Storage Temperature -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)



Table 2. Source: Viatran

. . .
Supply Voltage 9 to 30 Vdc (12 to 30 Vdc for DM option)  
Power Supply Regulation <±0.05% FSO per Volt Output Signal  
Output Signal 0-5 Vdc  
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 <5 nS conductance  
Response Time <1.5 millisecond  
Electrical Connections 6-pin bayonet (standard)  
Pin Outs Pin A +Power
Pin B -Power
Pin C +Signal
Pin D -Signal
Pin E AC ground (standard)
Pin F No connection
Connector Options BP Micro change (M12)
BN 4-pin bayonet
ZU Cable gland



Table 3. Source: Viatran

. .
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


Materials of Construction

Table 4. Source: Viatran

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



Table 5. Source: Viatran

. .
DA Isolated internal shunt calibration
(6-pin connector required)
DC Extended Compensated Temperature Range (Cold)
-40°F to 170°F (-40°C to 77°C)
DE Internal shunt calibration (6-pin connector required)
DG Improved temperature performance
DH Special range
DM Modified FSO >5 Vdc (Requires 12 to 30 Vdc Supply Voltage)
DN Improved linearity ±0.04% FSO (not available with TU option)
DQ Cleaning for oxygen service
DX Modified FSO <5 Vdc
EA Special calibration
EH Extended Compensated Temperature Range (Hot)
+70°F to 185°F (21°C to 85°C)
LV Externally powered, optically isolated shunt calibration
(6-pin connector required)
NH Customer specified marking
TU Compound special ranging
Alternate Pressure Ports  
VE 1/4 AN bulkhead mount
VF 1/4 tube Swagelok bulkhead
VG M12 x 1.5 mm female
VH M12 x 1.5 mm male
WQ G 1/4 female
YA MS33649-04
YC MS33656-04
YH 1/8" NPTM
YL 1/8" NPTF (standard)
YJ 1/4" NPTF
YK 1/4" NPTM


Model 422: Pressure Transmitter for Overhead Junction Boxes

Image Credit: Viatran

Other Equipment by this Supplier

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.