Hammer Union Pressure Transmitters

Model 511 Hammer Union Pressure Transmitter

Model 511 Hammer Union Pressure Transmitter

511 is Viatran's state of the art hammer union pressure transmitter with industry exclusive features that were developed in direct response to requests from the field. Included in these features is a voltage powered shunt cal, ability to calibrate and track pressure spikes using HART® Communicators or DevCom2000-Lite software and packaged in a patented* housing which can withstand extreme vibration and abusive impact and still perform to specification.



Full Scale Pressure Ranges:
0-5K, 0-6K, 0-10K, 0-15K, 0-20K PSI
Combined Accuracy (BFSL):
(Non-Linearity, Hysteresis & Repeatability) ≤ ± 0.25% FS
Full Scale Output (FSO):
16.00 mA ±1% FSO @70°F
  Zero Balance: 4 mA ±1% FSO @70°
  Compensated Temperature Range: -40°F to 140°F (4°C to 60°C)
  Operating Temperature Range: -40°F to 185°F (-40°C to 85°C
  Storage Temperature Range: -67°F to 302°F (-55°C to 150°C)
  Long Term Stability (%FSO): ≤ ± .25% FSO per 6 months
  Thermal Effect on Zero: ≤± 1% FSO per 100°F Typica
Thermal Effect on Span: ≤± 1% FSO per 100°F Typica



Output Signal:
4-20 mA @70°F
Supply Voltage:
9-28 Vdc
Power Supply Regulation:
<± .01% FSO per volt
  Load Impedance: 900 ohms @ 28 VDC decreasing linearity to 0 ohms @ 9 VDC
  Circuit Protection: Reverse polarity protected
  RFI / EMI: <1% FSO output change with 3V Rms from 150 kHz to 80 MGz

(80% AM modulated at 1 kHz) applied to power supply and signal lines

[IEC 61000-4-6 radio frequency common mode immunity],

1% output change when exposed to a radiated electromagnetic

field of 10 V/m from 80 MHz to 1 GHz AM modulated at 1 kHz and 3 V/m

1.4 GHz to 2.7 GHz. [IEC 61000-4-3 Radiated electromagnetic field immunity]
Voltage Spike Protection: Withstand 1000 volt spike per EN 61000-4-5
Insulation Resistance: < 5 nS
Response Time: < 1 millisecond to reach 90% of FSO
Range Calibration Signal: 100% FSO ±10% by exciting pins E&F
Calibration Power Supply Voltage: 8.5 -28 VDC
Calibration Signal Accuracy: Readings on calibration certificate are within ±0.2% FSO of actual Cal signal output
Bridge Resistance: 10K ohms, nominal
Standard Electrical Connection: Mates with 6 pin, Hermetic, Box Mount, Shell Size 10, MIL-C-26482 bendix type connector
PIN OUTS: PIN A + Power / Signal
PIN B - Power / Signal
PIN C No Connection
PIN D No Connection
PIN E + Calibration
PIN F - Calibration



Standard Pressure Port:
Male hammer union 2 inch
Pressure Cavity Volume:
Standard: 0.45 cubic inches
Otion "TP" : 0.22 cubic inches
Zero Effect from Installation:
0.3% FSO w/200 ft-lbs torque on union #1502
  Shock Sensitivity: 1000 g, 0.5 ms half sine wave pulse shall not cause change in calibration
  Proof Pressure: 1.67X range or 22,500 PSI max
  Burst Pressure:

3 Times full scale pressure range, limited by union #1502: 22.5K PSI




Wetted Materials:

NACE compliant Inconel 718 (MR0175/ISO 15156-3:2009(E))

Enclosure Material:

304 Stainless Steel
Laser marked on body of unit
  Enclosure Rating: IP68*, NEMA 6P*
  Weight: 5.6 lbs. nominal
  * Pending approvals






Extended Compensated Temperature Range (Cold) -40°F to 140°F (-40°C to 60°C)


Improved temperature compensation
Special Range


Improved accuracy


Special Calibration Run


Extended Compensated Temperature Range (Hot) +40°F to 180°F (4°C to 82°C)



Narrow adapter for banding


Carrying handle attached


Customer specific identification


Protective ring cage
NQ: Protective criss-cross cage


Special connectors
TW: Russia Intrinsic Safety and Non-Sparking