Sorry, this family of products is no longer available. The recommended replacement product is 42c-flow-through-pressure-switch.
42B Baratron® Flow-through Gauge Pressure Switch
42B Baratron® Flow-through Gauge Pressure Switch
The 42B Flow-through 10 - 26,000 Torr Pressure Switch is referenced to atmospheric pressure. The trip point on can be set to trip above, below (reverse calibration), or exactly at current atmospheric pressure.
Specifications
- TypeBaratron® Vacuum Pressure Switch
- ConfigurationFlow-Through
- Pressure Range Full Scale10 Torr through 500 psi
- Fitting Type4 VCR® male
- 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 Volume6.6 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.
- Ambient Operating Temperature0° to 50°C
- ComplianceCE Compliant to EMC Directive 2004/108/EC
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 |
Resources
Manuals
41A, 42A, 51A, and 52A Baratron® Vacuum Pressure Switch Manual(149.2 kB, PDF) 41B, 42B, 51B, and 52B Baratron® Vacuum/Pressure Switch Manual(433 kB, PDF) 41, 42, 51, 52 Vacuum/Pressure Switch Pin-outs(23.6 kB, PDF)
Drawings & CADs
42, 52 Baratron® Pressure Switch Dimensional Drawing(35.3 kB, PDF)
Literature
41B, 42B, 51B, 52B Baratron® Pressure Switches (archive)(175.8 kB, PDF)