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Summary of Contents for Time Electronics 7040
- Page 1 User Manual 7040 Digital Pressure/Current Calibrator Version 1.1 March 2021 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...
- Page 2 All rights reserved. Nothing from this manual may be multiplied, or made public in any form or manner, either electronically or hard copy, without prior written consent from Time Electronics Ltd. This also applies to any schematics, drawings and diagrams contained herein.
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Page 3: Table Of Contents
Time Electronics User Manual 7040 Digital Pressure/Current Calibrator v1.1 Contents Introduction ............................ 4 Description ............................. 4 Contents list ............................4 Pressure fittings ............................. 5 Loop Current connection ........................5 Specifications ..........................6 Pressure Calibration ..........................6 Loop Current Calibration ........................6 Main Functions ............................ -
Page 4: Introduction
Introduction Description The 7040 is a hand-held pressure/vacuum calibrator suitable for workshop, laboratory and field use. It also has the provision to measure process loop current. This allows pressure transmitters and converters to be calibrated directly. Pressure ranges are 0.2, 2, 5, 10 and 20 bar. These are specified on ordering. -
Page 5: Pressure Fittings
Pressure fittings The 7040 is equipped with a standard 1/8 “ BSP female pneumatic port manifold for connection of the pressure to be measured. A range of adaptors and fittings are available to fit the 1/8 “ BSP port. Should you have difficulty in obtaining a suitable adaptor, contact Time Electronics or their authorized agent. -
Page 6: Specifications
Time Electronics User Manual 7040 Digital Pressure/Current Calibrator v1.1 Specifications Pressure Calibration Pressure Range: 0.2, 2, 5, 10, or 20 bar (specified on ordering) Vacuum: Available on 2 bar range. Measures vacuum to - 1 bar Accuracy: 0.04% of range +/-1dig (0.2bar ver 0.1% +/-1dig) Resolution: 4.5 digit (0.2bar ver 3.5 digit) -
Page 7: Main Functions
Using a PC or laptop computer and an interface program (contact TE or authorised dealer) most of the 7040’s displayed parameters can be read back – Pressure, Loop Current, Max Value, Min Value. By arranging for the PC to store these values in a database a full data logging function is available. -
Page 8: Operation
Time Electronics User Manual 7040 Digital Pressure/Current Calibrator v1.1 Operation Front Panel Controls 7040 Digital Pressure/Current Calibrator Page 8 of 17... -
Page 9: Operation
Operation To power up the 7040, press the ON/OFF button for one second. To check the display is functioning correctly it shows all segments of the LCD while the button is being pressed. On releasing the ON/OFF button, the pressure units that were being used previously are displayed briefly. - Page 10 Time Electronics User Manual 7040 Digital Pressure/Current Calibrator v1.1 The Log button The log function (Minimum and Maximum recording) works for both pressure and loop current (both mA & %4-20mA). Pressing the log button initially displays the minimum symbol (∪∪∪) before displaying the minimum pressure or loop current.
- Page 11 Using a PC or laptop computer and an interface program (available from Time electronics or their authorised agent), all of the 7040’s displayed parameters can be read back – Pressure, Loop Current, Leak Rate, Max Value, Min Value. By arranging for the program to store these values in a database a full data logging function is available.
- Page 12 ASCII ID<CR> Returns firmware version as ASCII string (x.xx<CR>) RS<CR> Resets the 7040 to the power up state Returns pressure or current reading, as ASCII string (‘as displayed on 7040’<CR>). ‘n’ determines the value read. The units are those currently selected by the user, or by the UN command.
- Page 13 Battery replacement When the 7040’s battery is low the “Battery Low” sign will show on the display. The battery is a standard 9V PP3 type. The Nicad rechargeable version may be used. To replace the battery, turn the power off, remove the battery compartment cover at the rear of the instrument, and plug the battery into the polarized snap connector provided (see picture below).
- Page 14 The 7040 can calibrate a 2-wire pressure transmitter as follows: Set up: Connect the 7040 as shown in the following diagram. Use a suitable pressure pump, such as Time Electronics’ type 7090. Ensure that the pressure connection to the transmitter is vented to atmosphere.
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Page 15: Fault Conditions
Low Battery Voltage: When the internal battery voltage falls below 7.5V, a sign on the display shows the “LOW BATTERY” and there is an audible alarm. The 7040 can still be used while “LOW BATTERY” is showing but the battery should be changed as soon as possible. -
Page 16: Warranty And Servicing
Time Electronics’ total liability is limited to repair or replacement of the product. Note that if Time Electronics determine that the fault on a returned product has been caused by the user, we will contact the customer before proceeding with any repair. - Page 17 Returning Instruments Prior to returning your product please contact Time Electronics. We will issue a return merchandise authorization (RMA) number that is to accompany the goods returning. Further instructions will also be issued prior to shipment. When returning instruments, please ensure that they have been adequately packed, preferably in the original packing supplied.
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