Flush mount pressure transmitters

Model 385 Pressure Transmitter

Model 385 Pressure Transmitter

The Model 385 Flush Tip – Zero Cavity design offers an Isolated sensor assembly that virtually eliminates installation torque effect and is able to withstand pressure spikes up to 5x proof pressure and 20x burst pressure.

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.

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5x proof, 4-20 mA output, Blender Pressure Measurement

The Model 385 Flush Tip – Zero Cavity design offers an Isolated sensor assembly that virtually eliminates installation torque effect and is able to withstand pressure spikes up to 5x proof pressure and 20x burst pressure.

Performance characteristics

Full Scale Pressure Ranges 0-50,100, 150, 160, 200, 250, 300, 400, 500, 1,000 PSIG / PSIS
Static Error Band ≤±0.5% FSO (Includes BFSL, Hysteresis and Repeatability by RSS)
Compensated Temperature Range 70°F to 170°F (21°C to 77°C)
Operating Temperature Range -40°F to 185°F (-40°C to 85°C)
Storage Temperature Range -40°F to 250°F (-40°C to 120°C)
Long Term Stability (%FSO) ≤±0.5% FSO per 6 months
Thermal Effect on Zero ≤±2% FSO per 100°F Typical
Thermal Effect on Span ≤±2% FSO per 100°F Typical

Electrical characteristics

Output Signal 4-20 mA
Supply Voltage 8-28 Vdc
Power Supply Regulation <±.05% FSO per volt
Load Impedance 926 Ohms maximum at 28 volts DC
Circuit Protection Reverse polarity protected, CE marked
RFI / EMI CE EMC compliant as per IEC EN 61326-1 and EN 61326-2-3 Annex BB
Voltage Spike Protection Withstand 1000 volt spike per EN 61000-4-5
Insulation Resistance <5 nS
Response Time <2 mSec for 10-90% of final value
Electrical Connection Bendix PT02E-10-6P, mates PT06E-10-6S (SR) (BH option)

Pin Outs

Pin A+ Power / Signal

Pin B- Power / Signal

Pin CNo connection

Pin DNo connection

Pin EAC Ground

Pin FNo connection

ShellCase Ground


Materials of Construction

Wetted Materials

15-5 PH and 304L Stainless Steel (Inconel 718 optional)

Weights 8 oz. nominal

Mechanical characteristics

Standard Pressure Port 1/2" NPT (M)
Zero Effect from Installation

<±0.10% at 25 to 50 ft lbs

Proof Pressure


Burst Pressure



AH: 0-50 PSI
AM: 0-100 PSI
AN: 0-150 PSI
CA: 0-160 PSI
AP: 0-200 PSI
AQ: 0-250 PSI
AR: 0-300 PSI
AT: 0-400 PSI
AU: 0-500 PSI
AY: 0-1,000 PSI
BHWelded - 6 Pin bayonet shell size 10
ZEWelded - 4 Pin Hermetic,shell size 14S, (MIL-DTL-5015H)
ZUWelded- Direct Coupled Cable
VQ3/4"-16 UNF (M) (Includes Std Nitrile / NBR "O" ring)
VRG 1/2" (M) (Includes Std Nitrile / NBR ED Seal according to DIN 3869)
Performance Options
DAIsolated Internal Shunt Cal at 80% Full Scale
DCExtended Compensated Temperature Range (Cold) -40°F to 170°F (-40°C to 77°C)
EASpecial Calibration Run
EHExtended Compensated Temperature Range (Hot) +70°F to 185°F (21°C to 85°C)
GA"O" Ring or ED Seal- VITON® / FKM material
GD"O" Ring - EPDM material (not available with "VR" option)
NHCustomer Specified Identification
PW1/8 DIN Digital Indicator
QKInconel 718 - for all wetted parts (minimum range is 0-150 PSI)






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