
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 | 








