SERIES MG
USER’S GUIDE
http://www.cooperinstruments.com
TEL (540) 349-4746 • FAX (540) 347-4755
CONTROLS
The Series MG force gauges have three keys for controlling all functions of the instrument.
POWER
PEAK
ZERO
Turns the instrument on and off. It is also used to select an option in the setup mode
Used to select Tension Peak, Compression Peak or normal (real time) display mode.
The actual peak readings are always captured and can be displayed at any time.
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 4½ digit section and several indicators. Their functions are listed below.
LO BAT Low battery voltage indicator
C Compressive force indicator
T Tensile force indicator
C PEAK Peak compressive force indicator
T PEAK Peak tensile force indicator
LB,KG,N,G Units of measurement (model dependent)
- - (dashes) Overload (>110% of range)
OPERATION
The default mode of operation of the Series MG is the normal (real time) mode. Peak readings can be observed
as they occur by pressing PEAK until the desired mode (C PEAK or T PEAK) appears on the display. This
action affects only the display. The actual tensile and compressive peak readings are captured automatically
and retained until cleared by either pressing ZERO or shutting off the gauge. It is also equipped with an
automatic shutdown feature, which will shut off after a selected period of inactivity. The default setting is 30
minutes.
The displayed units of measurement, the mode of operation (peak or normal) and the automatic shutdown
settings can be changed by the following procedure:
To change the default mode of operation and the displayed units of measurement, hold PEAK while turning on
the power. Press PEAK repeatedly until “init” appears on the display. Press POWER. A flashing indicator will
show the present setting. Press PEAK repeatedly to scroll through the available choices and POWER to accept
the desired one. The flashing indicator will show the present units of measurement. Use PEAK to scroll through
the available choices and POWER to accept. Press POWER again at the “donE” prompt to save the changes.
To change the default shutdown setting of 30 minutes, hold PEAK while turning on the power. Press PEAK
repeatedly until ‘AOFF’ appears. Press POWER to select this function. The current setting will flash on the
display. Use the PEAK key to scroll through the displayed choices and POWER to select. Press POWER again
at the ‘donE’ prompt to save the changes.
If no changes have been made, exit the setup mode by momentarily inserting the power plug with the AC
adapter unplugged, or disconnect the battery. This action will terminate the setup mode without making any
changes to the previous settings.
POWER
The gauge may be powered by the interval 9V battery, or by the included AC adapter. PLEASE DO NOT
SUBSTITUTE OTHER ADAPTERS, SINCE A CONNECTION OF A POWER SOURCE WITH REVERSE
POLARITY WILL CAUSE SERIOUS DAMAGE TO THE INSTRUMENT. When a steady LOBAT appears on the
display, it indicates the last 10% of battery life. A flashing LO BAT indicated the need for immediate battery
replacement.
CALIBRATION
To properly calibrate this instrument, application of an exact load appropriate for your model will be required. It
must be in pounds as indicated by the model number. For example, the MG50 requires a 50 lb calibration
weight regardless of displayed units.
CF14 1 (V-0604 32-1007)