Sorry, this family of products is no longer available. The replacement family of products is R740D 20-3000 PSIG Baratron® Differential Capacitance Manometers with Trip Relays.
R740C 20-3000 PSIG Baratron® Differential Capacitance Manometers with Trip Relays
Overview
The R740C High-Pressure Baratron® Gauge Capacitance Transducer has a standard 0-10 VDC analog output signal and two (2) independently-adjusted electromechanical trip relays that can be used to switch external components such as pumps, valves, and other equipment.
Specifications
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TypePressure Transducer
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Sensor TypeIndustrial Capacitance Manometer
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Measurement TypeDifferential
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Full Scale Pressure Ranges20 to 3000 PSI (1.4 to 204 bar)
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Accuracy±1% of Reading
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Resolution±0.01% of Full Scale
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Repeatability±0.1% of Reading
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Analog Output0 to 10 VDC into >10 k Ω load
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Electrical Connector15-pin D-subminiture
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Zero Temperature Coefficient0.02% of Full Scale/°C
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Span Temperature Coefficient0.04% of Reading/°C
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Volume4.7 cc
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Power Requirements±15VDC (± 5%) @ 35 mA (max)
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Factory Default Trip Relay SettingsTrip Relay A energizes below 55% of full-scale range, and Trip Relay B energizes above 55% of full-scale range.
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Relay SpecificationsTwo independently-adjusted DPDT contacts adjustable between 0.5% and 100% of FS. Relays are UL listed and rated at 1.0 amps @ 30 VDC or 0.3 amps @ 30 VAC.
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Weight1.0 lbs (0.4 kg)
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ComplianceCompliant with EMC Directive 2004/108/EC
Compliant with Directive 2002-95-EC
Features
15-pin Type "D" Pin-Outs
| Pin | Description |
|---|---|
| 1 | Relay Contact A, N.O. |
| 2 | Pressure Output |
| 3 | Reserved |
| 4 | Reserved |
| 5 | Power Return |
| 6 | -15 VDC |
| 7 | +15 VDC |
| 8 | Relay Contact A, N.C. |
| 9 | Relay Contact B, N.C. |
| 10 | Trip Point A, Setting |
| 11 | Trip Point B, Setting |
| 12 | Pressure Return |
| 13 | Relay contact B, N.O. |
| 14 | Relay Contact B, Common |
| 15 | Relay contact A, Common |
Resources
Manuals
- R740 & R750 Capacitance Transducer Pin-outs (23 kB, PDF)
Ultra-High Velocity