Description
The Model 770 Pressure Transmitter uses a solid machined diaphragm sensor, which provides excellent durability and repeatability. 770 has both IS and Explosion Proof approvals, and can measure pressures up to 100K psi. A wide variety of wetted surface materials, process connections and electrical connections are available, and special wiring configurations are easily accommodated.
Features:
- Many Options available
- All Stainless Steel construction
- IP-68 Rated
Performance:
- Full Scale Pressure Range: 0-100 thru 0-100K PSIS (0-6.89 thru 0-6894 bar)
- Accuracy (RSS):
- (BFSL Linearity, Hysteresis, Repeatability)
- 0-300 PSI thru 0-15K PSI Ranges: ±0.20% FSO ( ±0.15% FSO improved with “DN” option)
- < 0-300 PSI or > 0-15K PSI Ranges: ±0.25% FSO ( ±0.15% FSO improved with “DN” option)
- Linearity (Best Fit Straight Line):
- 0-300 PSI thru 0-15K PSI Ranges: ±0.10% FSO (BFSL), Typical
- < 0-300 PSI or > 0-15K PSI Ranges: ±0.15% FSO (BFSL), Typical
- (BFSL Linearity, Hysteresis, Repeatability)
- Hysteresis: < ± 0.05% FSO, Typical
- Repeatability: < ± 0.05% FSO, Typical
- Full Scale Output (FSO): 5 Vdc
- Zero and Span Balance: ±1% FSO
- Long Term Stability: ≤±0.25% FSO per 6 months
- Response Time: <2 mSec to reach 90% FSO
- Temperature Effect on Zero: ≤±1% FSO per 100°F (37°C)
- Temperature Effect on Span: ≤±1% FSO per 100°F (37°C)
- Compensated Temperature: 70°F to 170°F (21°C to 76°C)
- Operating Temperature: -40°F to 190°F (-40°C to 87°C)
- Storage Temperature Limit: -65°F to 250°F (-53°C to 121°C)
Electrical:
- Supply Voltage: 12 to 30 Vdc
- Power Supply Regulation Effect: ≤±0.02% FSO per Volt
- Output Signal: 0 – 5 Vdc
- Load Impedance: 100K Ohms minimum
- Bridge Impedance: 5000 Ohms nominal
- Circuit Protection: Varistor protected across the input leads for surges above 40 V and currents to 250 Amps peak with a pulse width of 20 μSecs. Reverse polarity protected.
- Insulation Resistance: >200 MegOhms to case ground
- Electrical Connection: 1/2″ NPT (M), 18 AWG wire, 72″
- Wire Color Codes:
- Red: +Power
- Black: +Signal
- Green: Case ground
- White: -Power/Signal
To learn more about Pressure Transducers like the Model 770 Pressure Transmitter available at BBP, click here.
