
Model 520 Hammer Union Pressure Transmitter
Viatran's Model 520 Hammer Union Pressure Transmitter offers superior construction and the rugged performance that we have built our reputation on.
PERFORMANCE
| Full Scale Pressure Ranges: | 0-5K, 0-6K, 0-10K, 0-15K, 0-20K, 0-25K PSIS | |
| Combined Accuracy (BFSL): | (Non-Linearity, Hysteresis & Repeatability) ≤ ± 0.25% FSO | |
| Full Scale Output (FSO): | 16.00 mA ±1% FSO @70°F | |
| Zero Balance: | 4 mA ±1% FSO @70°F | |
| 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 Typical | |
| Thermal Effect on Span: | ≤± 1% FSO per 100°F Typical | 
ELECTRICAL
| 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 | |
| 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 | 
MECHANICAL
| Standard Pressure Port: | Male hammer union 2 inch #2002 | |
| Pressure Cavity Volume: | Standard: 0.45 cubic inches | |
| Zero Effect from Installation: | 0.3% FSO w/200 ft-lbs torque on union #2002 | |
| Shock Sensitivity: | 1000 g, 0.5 ms half sine wave pulse shall not cause change in calibration | |
| Proof Pressure: | 1.67X range or 30,000 PSI max | |
| Burst Pressure: | 3 Times full scale pressure range, limited by union #2002: 30K PSI | 
MATERIALS OF CONSTRUCTION
| Wetted Materials: | NACE compliant Inconel 718 (MR0175/ISO 15156-3:2009(E))  | |
| Enclosure Material: | 304 Stainless Steel | |
| Identification: | Laser marked on body of unit | |
| Enclosure Rating: | IP68*, NEMA 6P* | |
| Weight: | 4.0 lbs. nominal | |
| * Pending approvals | 
 | 
OPTIONS
| 
 DC: 
 | Extended Compensated Temperature Range (Cold) -40°F to 140°F (-40°C to 60°C) | |
| 
 DG: 
 | Improved temperature compensation | |
| DH: | Special Range | |
| DN: | Improved accuracy | |
| EA: | Special Calibration Run | |
| EH: | Extended Compensated Temperature Range (Hot) +40°F to 180°F (4°C to 82°C) | |
| LW: | Narrow adapter for banding | |
| NA: | Carrying handle attached | |
| NH: | Customer specific identification | |
| NP: | Protective ring cage | |
| NQ: | Protective criss-cross cage | |
| Z(): | Special connectors | 








