Model 571 Pressure Transmitter
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.
PERFORMANCE
| Full Scale Pressure Ranges | 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 |
ELECTRICAL
|
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 | -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 | The exact signal to pressure correlation is provided with each unit | |
|
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 |
MECHANICAL
|
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 20K thru 0-100K PSI |
|
| Burst Pressure |
50 thru 0-3K PSI 5K PSI 7.5K thru 10K PSI 15K PSI 20K thru 100K PSI |
|
| Shock Limitation | 100G’s | |
| Weight | 24 oz | |
| Enclosure Materials |
50 thru 15K PSI 20K thru 100K PSI |
|
| Wetted Materials |
50 thru 15K PSI 20K thru 100K PSI |
|
| Enclosure Classification | NEMA/Type 4x |