Sealed External Adjustment, Hazardous Approvals, 0-100 thru 100K psi
571 is Viatran’s answer to the requirement for Hazardous Location approvals with external sealed adjustments. 571 is rangeable, offering the user flexibility if measuring different pressure levels.
Features
Many Options available
ShuntCal
All Stainless Steel construction
High Pressure Applications
Full Scale Pressure Range (FSPR): 0-50 thru 100K PSIA / PSIS
Combined Accuracy (Non-Linearity, Hysteresis, Repeatability): ≤0.3% FSO
Full Scale Output (FSO): 16 mA at 70°F
Resolution: Infinite
Long-term Stability: ≤±0.25% FSO per 6 months
Response Time (Mechanical & Electrical Combined): ≤20mSec to reach 90% of FSO
Temperature Effect on Zero: ≤±0.5% FSO per 100°F
Temperature Effect on Span: ≤±0.5% FSO per 100°F
Temperature Effect on Zero and Span combined at 5:1 Range Down: ≤±4.0% FSO per 100°F
Compensated Temperature Range: 70°F to +170°F
Maximum Operating Temperature: +190°F
Minimum Operating Temperature: -10°F
Non-operating Temperature Range: -65°F to 250°F
Supply Voltage: 12 to 30 VDC
Power Supply Regulation: ≤±0.02% FSO per volt
Output Signal: 4-20 mA at 70°F
Load Impedance: 900 Ohms maximum at 30 VDC
Zero Adjustment Elevation: -100% of FSO
Suppression: +50% of FSO
Span Adjustment: Rangeable down 5:1 from standard range
Range Calibration Signal: 20% of FSPR externally switched
Calibration Signal Accuracy: ±1.0% FSO. The exact signal to pressure correlation is provided with each unit.
Circuit Protection: Varistor protected across the input leads for surges above 40V and currents to 250A peak with a pulse width of 20 μSec. Reverse polarity protected.
Bridge Resistance: 5K Ohms nominal
Insulation Resistance: ≥5 nS to case ground
RFI/EMI Suppression: Negligible to 500 MHz at 5 Watts direct contact
Electrical Connection: 1/2″ NPT Male, 18 AWG, 72″
Wire Color Codes:
Red +Power/Signal
Black -Power/Signal
Green Case Ground
Pressure Connections:
- 50 thru 15k PSI: 1/4″ NPT female
- 20K thru 50K PSI: Autoclave Engineers F250-C, 1/4″ High Pressure Tube
- 60K thru 100K PSI: Autoclave Engineers F312-C, 5/16″ High Pressure Tube
Proof Pressure:
- 50 thru 0-15K PSI: 1.5 times FSPR or 20K PSI, whichever is less
- 20K thru 0-100K PSI: 1.2 times FSPR
Burst Pressure:
- 50 thru 0-3K PSI: 5 times FSPR
- 5K PSI: 4 times FSPR
- 7.5K thru 10K PSI: 2.7 times FSPR
- 15K PSI: 2.3 times FSPR
- 20K thru 100K PSI: 1.5 times FSPR or 125K PSI, whichever is less
Shock Limitation: 100G’s
Weight: 24 oz
Enclosure Materials:
- 50 thru 15K PSI: 15-5 PH and 316 stainless steel
- 20K thru 100K PSI: PH 13-8 Mo SST and 300 Series SST
Wetted Materials:
- 50 thru 15K PSI: 15-5 PH stainless steel
- 20K thru 100K PSI: PH 13-8 Mo SST
Enclosure Classification: NEMA/Type 4x
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