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7005 Voltage / Current / Loop Calibrator Data Sheet


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7005 Voltage / Current / Loop Calibrator Data Sheet - 1

Time Electronics 7005 Voltage / Current / Loop Calibrator Description A precision handheld instrument primarily used for the calibration and simulation of voltage and current loops. The 7005 is a high accuracy calibrator incorporating source and measure capabilities. The compact and lightweight design make it easily portable and ideal for plant operations and field use. Combined with user friendly controls and simple operation the 7005 is an excellent model for both process engineers and calibration technicians. The three operating modes provide a fast and easy solution to process applications; Loop current/voltage source for simulating a transmitter and the loop supply, sink of loop current for simulating a transmitter, and measurement of loop current/voltage for simulating a loop indicator. Manual step of the output is possible at five calibration points; 0 %, 25 %, 50 %, 75 % and 100 % of span. Automatic stepping of the output is also available, both up and down with programmable dwell times. Continuous up/down ramping can also be performed, with user programmable ramp rates and dwell time (top and bottom). • Current measure: 125 mA, source: 50 mA • Voltage measure: 25 V, source: 21 V • Loop Current Sink • Accuracy 0.01 % • Transmitter and square root functions • Auto-ranging feature • Programmable steps and ramp • Supplied with battery charger & case In source mode the range can be user programmed to any value between 0 mA and 50 mA, or 0 V and 21 V. For example a low point of 10 mA and a high point of 50m A could be set giving a span of 40 mA. Measure mode provides both voltage and current measuring capability with 5 digit resolution. Ranges are 0 to ± 5 V and ± 5 to ± 25 V, 0 to ± 25 mA and ± 25 to ± 125 mA. Alternatively the signal can be measured as a % of span for the following ranges; 4 to 20 mA, 0 to 20 mA, square root 4 to 20 mA, or square root 0 to 20 mA. For all measurements a Min/Max recording function is available on demand. An internal NiMH battery powers the unit for typically 9 hours continuous use and an external mains charger is supplied as standard. An automatic power-down feature is incorporated to conserve battery life, which can easily be disabled if not required. The unit is constructed in an impact resistant ABS case and connections are made via 4 off 4 mm binding terminal posts. Time Electronics Ltd, Unit 5, T O N Business Park, 2-8 Morley Road, Tonbridge, Kent, TN9 1RA, United Kingdom T: +44 (0) 1732 355993 | F: +44 (0) 1732 350198 | | w

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7005 Voltage / Current / Loop Calibrator Data Sheet - 2

Time Electronics 7005 Voltage / Current / Loop Calibrator Technical Specifications DC Voltage source Range Output current Output resistance DC Voltage measure (0 to ± 25 V, Auto-ranging) Range Measure load DC Current source Range Output voltage Loop resistance DC Current measure (0 to ± 125 mA, auto-ranging) Range Input load DC Current source Range Summary of Functions Source Mode • User programmable ranges - any values between 0 and 50 mA or 0 and 21 V. • Fixed ranges are available: 4 to 20 mA, 0 to 20 mA, sqrt 4 to 20 mA, sqrt 0 to 20 mA. • Fine adjustment (inching) is available for...

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