9840 Series Power Calibrators (Single and 3 Phase)

Time Electronics

Calibration, Test & Measurement

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4 voltage ranges: 57 - 110 - 220 - 500V

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4 current ranges: 1 - 5 - 20 - 100A

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Frequency: 45 - 70Hz

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Phase angle: -90/0/+90°

(0.1° resolution)



Total harmonic distortion:

Pre-settable from 1% to 15%

The 9840 series calibrators are used for adjusting, checking and verification of measuring instruments used in

power engineering. These include active and reactive power meters, phase meters, frequency meters,

ammeters, voltmeters, transducers, monitoring systems, and frequency, voltage and current relays.

It is constructed in a standard 19” rack-mount size case. Voltage and current output signals are set by multi-

turn potentiometers and are simultaneously indicated on 4.5 digit LED displays. Frequency and phase angle

are also set by multi-turn potentiometers and are displayed on 4 digit LED indicators.

Instruments to be calibrated can safely be connected to the outputs without changing the set values since the

calibrator can be switched to ‘standby’ mode to isolate the output terminals.

Sinusoidal signals are generated on both voltage and current outputs. If required, between 1% and 15%

harmonic distortion can be added to the signals.

Three Phase Calibrator Set

Calibrator 9840 can work in a three phase set (order code 9845). It consists of one calibrator in basic

configuration (phase L1) and two calibrators in special configuration (phase L2 and phase L3). Calibrator phase

L1 controls phase L2 and L3 by means of analogue and digital signals. All connections are on the rear panels.

The calibrator set is able to generate a symmetrical three phase vector, programmed from control calibrator

phase L1. The phase angles between the 3 phases are shown on the displays.

Time Electronics, Botany Industrial Est. Tonbridge, Kent. England. TN9 1RH.

Tel: +44 (0)1732 355993 Fax: +44 (0)1732 770312 E-mail: mail@timeelectronics.co.uk

www.timeelectronics.com

Shift angle between voltage signals

120° ±1° *

Maximum amplitude difference in each phase from

average value (voltage)

±1% of value

Maximum amplitude difference in each phase from

average value (current)

±1% of value

Maximum difference in phase angle between voltage

and current

±1° *

* for settings greater than 10% on voltage and current range

V1a 01/01/07