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7093 Precision Loop and Dual Pressure Calibrator Data Sheet

7093 Precision Loop and Dual Pressure Calibrator Data Sheet
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7093 Precision Loop and Dual Pressure Calibrator Data Sheet - 1

Time Electronics 7093 Precision Loop and Dual Pressure Calibrator • Vacuum to 600bar versions available • Pressure accuracy 0.04% of full scale • 0.025% high accuracy version available • Pneumatic or hydraulic • Current measure: 125mA, Source: 50mA • Voltage measure: 25V, Source: 21V • Voltage/Current accuracy 0.01% • RS-232 serial interface • EasyCal software compatible • Mains or battery powered DESCRIPTION Pressure Section The 7093 is a fully integrated dual channel pressure test and calibration system, coupled with a independent micro-processor based voltage and current loop calibrator. The instrument is therefore suitable for on-site test and calibration of both pressure and electrical process loop signals. For pressure two channels with the ranges specified on ordering are available. Standard ranges for each channel are; 0.2, 2, 5, 10, 20, 35, 70, 100, 200, 400, and 600bar. Vacuum down to -850mbar is possible on the 2bar version. The standard model best accuracy is 0.04% of range. A high accuracy version is available with a best accuracy 0.025% of range under lab conditions. The internal precision piezo-resistive pressure transducer allows the use in either non corrosive gas or hydraulic (demineralised water or oil) liquid. Over-pressure warning is provided on the display and by an audible sounder. Pressure connections are made via Quick release or Minimess connectors located on the control panel. Quick release are fitted for pressure ranges Vacuum to 20bar and provide a convenient push-on connection to devices under test. Minimess are fitted for pressure ranges 35bar up to 600bar, and provide easy leak-proof connection via a finger tight thread. Two rotary switches provide pressure units selection and a separate switch is used for zeroing each channel. The pressure displays comprise of two 4.5 digit, 7 segment LCD’s, with back lighting. Additionally the pressure section offers a supplementary independent 24/36V loop supply, loop current measurement as well as a continuity function for testing for pressure switches and circuit loops. In field use input pressure for the 7093 may be generated by externally via the 7090 pneumatic (vac to 40bar), or 7095 hydraulic (0 to 700bar) hand pump. In the lab the 7193 (vac to 40bar), 7194 (vac to 100bar), and 7195 (vac to 600bar) desktop pumps are ideal for precision pressure control. 7194 Pneumatic Pump 7195 Hydraulic Benchtop Pump

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7093 Precision Loop and Dual Pressure Calibrator Data Sheet - 2

7093 Description Loop Calibrator Section The loop calibrator section is a high accuracy integral current and voltage loop calibration instrument. This can be used for the calibration of voltage loops up to 21V and current loops up to 50mA. Three operating modes provide a fast and easy solution to process applications: Source for simulating a transmitter as well as the loop supply, Sink for simulating a transmitter with external loop power and Measure for measurement of the loop. Four 4mm terminals provide connection to the loop under test. A dot matrix LCD screen with back lighting displays...

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7093 Precision Loop and Dual Pressure Calibrator Data Sheet - 3

TECHNICAL SPECIFICATIONS Pressure Section Specifications are for 1 year a 23°C ±5°C (±2°C on HA models). Accuracy includes linearity and long tem effects. All accuracies are ±1 digit after zero is applled. For operation outside specified temperature range, apply 70ppm per °C General Specifications Power Source Rechargeable 2700mAh NiMH batteries or mains (230V / 110V 50 / 60Hz) Battery Life 8 - 190hrs depending upon operational requirements Interfaces RS-232 for pressure readback and re-calibration (software not supplied) Case Structural resin which is weather-proof to IP66 standard...

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