7093 Precision Loop and Dual Pressure Calibrator Data Sheet0 pages

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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7090 and 7095 Handheld Pumps