Secure Checkout
Sorry, this family of products is no longer available. The recommended replacement product is 51c-single-end-absolute-pressure-switch.
51B Baratron® Single-ended Absolute Pressure Switches
51B Baratron® Single-ended Absolute Pressure Switches
The 51B Single-end Pressure Switch is referenced to vacuum.
Specifications
- TypeVacuum Pressure Switch
- ConfigurationSingle-ended
- Pressure Range Full Scale10 Torr through 500 psi
- Accuracy±0.5% of Full Scale (± temperature coefficient)
- Trip Point Range5% to 100% of Full Scale
- Trip Point Dead Band±3% of Full Scale
- Response Time<20 msec
- Internal Volume3.3 cc
- Temperature Coefficient±0.07% of Full Scale/°C
- Materials Exposed to Process GasesInconel and 316L stainless steel
- Overpressure2 x Full Scale or 45 psia, whichever is greater
- OutputsElectromechanical relay - SPDT (isolated) contacts rated up to 1 Amp @ 30 VDC resistive
- Power Requirements10 to 20 VDC @ 35 mA max. or 20 to 30 VDC @ 30 mA max
- Ambient Operating Temperature0° to 50°C
- ComplianceCE
Features
9-pin Type “D” Pinouts
| Pin | Description |
|---|---|
| 1 | Power Return (-) |
| 2 | Power Input (+) |
| 3 | Relay NO Contact |
| 4 | Relay Common |
| 5 | Relay NC Contact |
| 6 | Unused |
| 7 | Unused |
| 8 | Unused |
| 9 | Chassis Ground |
Flying Lead Wiring
| Wire | Description |
|---|---|
| Red | Power Input (+) |
| Black | Power Return (-) |
| Green | Relay NO Contact |
| White | Relay Common |
| Orange | Relay NC Contact |
| Bare Wire | Chassis Ground |