Time Electronics

7018 Differential Pressure Calibrator

Time Electronics Ltd, Unit 5, TON Business Park, 2-8 Morley Road, Tonbridge, Kent, TN9 1RA, United Kingdom

T: +44 (0) 1732 355993 | F: +44 (0) 1732 350198 | mail@timeelectronics.co.uk | www.timeelectronics.com

Description

The 7018 is a differential pressure calibration system suitable for field and laboratory

calibration work of both diffential pressure and electrical process loop signals.

The instrument is designed for very stable measurement of differential pressures between

its two output ports, enabling the calibration of differential pressure gauges, transducers,

and transmitters. There are five available versions, according to the required range, either

0.2, 2, 5, or 10 bar.

Features include a 4.5 digit LCD display with 4 selectable pressure units plus mA, zeroing

switch, and two quick release connector ports (Hi and Lo for differential pressure input)

that are situated on the front panel of the unit. Best accuracy is 0.04 % of full scale.

For process signal calibration the loop signal is displayed on the LCD display to 0.05 %

accuracy. Loop drive supply (24 V or 36 V) is also provided. Both pressure and loop signal

can be displayed at the same time to speed up the calibration of pressure transmitters.

Additionally a continuity function is available for testing for open circuit loops.

Power is via internal rechargeable cells (24 hours typical use) with a built-in mains

charger. The unit can be powered directly from the mains if required. The 7018 is housed

in an impact resistant safety case that provides protection and increased durability.

Pressure connections are on the front panel and the instrument is supplied with a

pressure hose, electrical test lead, 2 electrical probes and 2 crocodile clips.

Options

For the 7018, input pressure can be generated by the 7090 pneumatic hand pump (-950

mbar to 40 bar). Other pumps and digital pressure gauges are also available.

For process control signal simulation Time Electronics’ handheld 7006 Loop-Mate is

available as an option. It provides 4 - 20 mA and 0 - 10 V signals at levels of 0 %, 10 %,

25%, 50 %, 75 %, 90 %, 100 %. It 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. See separate datasheets for more information.

The 7018 is fitted with RS232 connection as standard. Display readback can be

performed using EasyCal calibration software. With comprehensive features EasyCal

can simplify and speed up calibration procedures. Easily produce calibration certificates

and reports to international quality standards.

Features

• 0.2, 2, 5 and 10 bar versions available

• Accuracy 0.04 % of full scale

• Pneumatic

• Calibrate DP transmitters, gauges & more

• Loop current measure

• 24/36 V loop power

• Over-pressure alarm

• RS-232 serial interface

• EasyCal software compatible

• Mains or battery powered

EasyCal Calibration Software

The 7018 can be controlled with readback via Time Electronics

EasyCal software to automate the calibration process. This

provides increased speed of calibration and consistency of

results. Produce traceable calibration certificates and test

reports for quality standards with additional uncertainty

information for ISO 17025 conformance.