The 7093 loop and pressure calibrator is a fully integrated dual channel test and calibration system. It combines an independent micro-processor based voltage and current loop calibrator with precision pressure channels for a robust field calibration solution. The 7093 can be used 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.
| Power Source |
Rechargeable 2700mAh NiMH batteries or mains (230V / 110v 50 / 60Hz) |
| Battery Life |
8 - 190hrs depending upon operational requirements |
| Display |
7 segment LCD displays with ‘Low Battery’ warning indicator |
| Interfaces |
RS-232 for pressure readback and re-calibration (software not supplied) |
| Case |
Structural resin which is weather-proof to IP66 standard |
| Dimensions |
41 x 32 x 17.5cm / 16.1” x 12.6” x 7” |
| Weight |
4.08kg / 10.6 lbs approx. |
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Supplied with
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2 pressure hoses: Quick release for 20bar and below. Minimess for versions 35bar and above.
Electrical Test Lead: Twin flexible lead, terminated with 4 off 4mm gold plated plugs.
Electrical probes: 2 off low voltage probes and 2 crocodile clips. Mains power lead.
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| Optional Extras |
Pneumatic & hydraulic pumps, gauges, EasyCal software, and calibration certificates |