Cooper Instruments MGT 12 Installation Manual

SERIES MGT

USER’S GUIDE

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Controls

All series MGT torque gauges have three keys for controlling all functions of the instrument.

POWER Turns the instrument on and off. Also used in the calibration mode. Used to select Clockwise

Peak, Counterclockwise Peak or Normal (real time) display mode. The actual peak readings are
always captured and can be displayed at any time.

ZERO Zeros any tare value (up to the full capacity of the gauge) and clears the peak readings stored in

memory.

Display

The display consists of a 4 ½-digit section and several indicators. Their functions are listed below.

LO BAT Low battery voltage indicator
CW Clockwise torque indicator
CCW Counterclockwise torque indicator
CW PEAK Peak clockwise indicator
CCW PEAK Peak counterclockwise indicator
OZIN, LBIN, Units of measurement
NCM, KGMM (Model dependent)

------ (dashes) Overload (>110% of range)

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Operation

The default mode of operation is the normal (real time) mode. If the peak readings are to be observed as they
occur, then the mode of operation can be changed by pressing PEAK until the desired mode (CW PEAK or CCW
PEAK) appears on the display. Please note that this action affects only the display. The peak readings are
captured automatically and can be cleared from the memory by either pressing ZERO or shutting off the gauge.

The gauge is equipped with an automatic shutdown feature and it will shut off after approximately 30 minutes of
inactivity (readings do not change by more than ±10 counts and no keys are pressed). The entire display will flash
for 5-7 seconds as a warning of the imminent shutdown. To change the default setting of 30 minutes, hold PEAK
while turning on the gauge. Press PEAK repeatedly until ‘AOFF’ appears. Press POWER to select this function.
The current setting will flash on the display. Use PEAK to scroll through the displayed choices and POWER to
select. Press POWER again at the ‘donE’ prompt in order to save the setting.

The displayed units of measurement and the default mode of operation (peak or normal) can be changed by
entering the setup mode as described above, pressing POWER at the ‘init’ prompt and selecting the desired
settings using the PEAK and POWER keys.

Power

The instrument may be powered by the internal gV battery, or by the included AC adapter. The need for battery
replacement is indicated by a 3-step sequence: 1- a steady LO BAT appears on the display indicating the last 10%
of the battery life, 2- LO BAT begins to flash indicating the need for an immediate battery replacement, 3- the entire
display except LO BAT flashes for several seconds and then the instrument shuts off.

CF37 2 07/02/01 (V-9/96)