The Time Electronics 7018 differential pressure calibrator is suitable for field and laboratory calibration of both differential pressure and electrical process loop signals. The 7018 is designed for very stable measurement of differential pressures between its two output ports, enabling the calibration of differential pressure gauges, transducers and transmitters. For process signal calibration, the loop signal is displayed to 0.05% accuracy. Loop drive supply (24V or 36V) is also provided. Both pressure and loop signal can be displayed at the same time to speed up the calibration of pressure transmitters. A continuity function is also available for testing for open circuit loops.
The 7018 features a 4.5-digit LCD display with four selectable pressure units, mA, zeroing switch, and two quick release connector ports (Hi and Lo for differential pressure input) situated on the front panel of the unit. The 7018 also features internal rechargeable cells, but can also be AC-powered if necessary. The calibrator is housed in an impact-resistant safety case that provides protection and increased durability. Pressure connections are located on the front panel, and the instrument is supplied with a pressure hose, electrical test lead, two electrical probes and two crocodile clips.
The 7018 has an RS-232 interface, and display readback can be performed using EasyCal software that can simplify and speed up calibration procedures. Calibration certificates and reports can easily be produced to international quality standards.
The handheld 7006 loop simulator is available as an option for process control signal simulation. It provides 4-20mA and 0-10V signals at levels of 0, 10, 25, 50, 75, 90 and 100%. The 7006 can also step through these set points automatically to allow hands-free calibration. It is battery-powered and can be stored in the 7018's supplied carry pouch.
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