42C Baratron® Flow-through Gauge Pressure Switches
Model: 42C
42C Baratron® Flow-through Gauge Pressure Switches
Model: 42C

Overview
Overview
The 42C Flow-through Pressure Switch offers accurate and reliable protection for vacuum/pressure processes. Designed for applications where a DC signal output is not required, these switches provide relay outputs that are readily interfaced with alarms, valve actuators, computers, process controllers, load locks and other protection devices. The 42C is referenced to atmospheric pressure. The trip point on can be set to trip above, below (reverse calibration), or exactly at current atmospheric pressure.
Technical Specs
- TypeFlow-through gauge
- Pressure Range Full Scale500 Torr (reverse calibration only)
- Fitting Type4 VCR male
- Connectorflying leads with 2 ft. shielded cable
- Accuracy±0.5% of Full Scale (±temperature coefficient)
- Relay ModeEnergizes below the set point
- Trip Point Dead Band±3% of Full Scale (nominal)
- Response Time<20 msec
- Internal Volume6.6 cc
- Temperature Coefficient±0.07% of Full Scale/°C
- Materials Exposed to Process GasesInconel and 316L S.S., 10 &micoro***Ra max. on switches with Swagelok VCR fittings (5 µ***Ra max. optional)
- Overpressure2 × Full Scale or 45 psia, whichever is greater
- OutputsElectromechanical relay SPDT (isolated) contacts rated up to 1 Amp @ 30 VDC resistive.
- Ambient Operating Temperature0-50°C
- ComplianceCE
- ReferenceGauge
Technical Specs
- TypeFlow-through gauge
- Pressure Range Full Scale500 Torr (reverse calibration only)
- Fitting Type4 VCR male
- Connectorflying leads with 2 ft. shielded cable
- Accuracy±0.5% of Full Scale (±temperature coefficient)
- Relay ModeEnergizes below the set point
- Trip Point Dead Band±3% of Full Scale (nominal)
- Response Time<20 msec
- Internal Volume6.6 cc
- Temperature Coefficient±0.07% of Full Scale/°C
- Materials Exposed to Process GasesInconel and 316L S.S., 10 &micoro***Ra max. on switches with Swagelok VCR fittings (5 µ***Ra max. optional)
- Overpressure2 × Full Scale or 45 psia, whichever is greater
- OutputsElectromechanical relay SPDT (isolated) contacts rated up to 1 Amp @ 30 VDC resistive.
- Ambient Operating Temperature0-50°C
- ComplianceCE
- ReferenceGauge
Resources & Downloads
Drawings & CADs
42, 52 Baratron® Pressure Switch Dimensional Drawing(35.3 kB, PDF)
