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SERIES MGT
USER’S GUIDE
www.cooperinstruments.com
PH: 540-349-4746 • FAX: 540-347-4755
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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)
C
W
P
E
A
W
a
1
r
r
8
e
0
n
0
t
-
o
3
n
4
,
4
V
-
3
A
9
2
U
1
S
A
K
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)
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Calibration
To properly calibrate this instrument, application of a precise torque value equal to the full capacity of the gauge in
inin or ozin (regardless of the displayed units) will be required. While holding PEAK, turn the gauge on. When
‘CAL’ appears on the display press POWER three times to select the calibration mode. At the ‘null’ prompt press
ZERO. At the ‘SPAn’ prompt apply the calibration torque and press POWER. The display will show “uuuu” or
“nnnn” if the calibration torque is insufficient or excessive accordingly. If this happens, the only way to terminate
the calibration mode is by momentarily disconnecting the battery or connecting the AC adapter without plugging it
into a wall outlet. This will stop the calibration procedure without making changes to the previous calibration data.
Successful calibration is indicated by ‘donE’ on the display. Press POWER to save the changes and resume
normal operation.
Specifications
ACCURACY ±0.5% of full scale ±1 digit
SAMPLING RATE 30 readings/second
DISPLAY RATE 2.5/s in normal mode, 30/s in peak mode
SAFE OVERLOAD 150% of gauge capacity. Display shows ---(dashes) above 110%
POWER 9V battery or AC adapter
BATTERY LIFE 30 hours of continuous operation
SIZE See drawing
WEIGHT 1.8 lb (0.8kg)
WARRANTY REPAIR POLICY
Limited Warranty On Products
Any Cooper Instruments product which, under normal operating conditions, proves defective in material or in
workmanship within one year of the date of shipment by Cooper will be repaired or replaced free of charge provided
that a return material authorization is obtained from Cooper and the defective product is sent, transportation
charges prepaid, with notice of the defect, and it is established that the product has been properly installed,
maintained, and operated within the limits of rated and normal usage. Replacement or repaired product will be
shipped F.O.B. from our plant. The terms of this warranty do not extend to any product or part thereof which, under
normal usage, has an inherently shorter useful life than one year. The replacement warranty detailed here is the
buyer’s exclusive remedy, and will satisfy all obligations of Cooper whether based on contract, negligence, or
otherwise. Cooper is not responsible for any incidental or consequential loss or damage which might result from a
failure of any and all other warranties, express or implied, including implied warranty of merchantability or fitness for
particular purpose. Any unauthorized disassembly or attempt to repair voids this warranty.
Obtaining Service Under Warranty
Advance authorization is required prior to the return to Cooper Instruments. Before returning the item, contact the
Repair Department c/o Cooper Instruments at (540) 349-4746 for a Return Material Authorization number.
Shipment to Cooper shall be at buyer’s expense and repaired or replacement items will be shipped F.O.B. from our
plant in Warrenton, Virginia. Non-verified problems or defects may be subject to a $100 evaluation charge. Please
return the original calibration data with the unit.
Repair Warranty
All repairs of Cooper products are warranted for a period of 90 days from date of shipment. This warranty applies
only to those items that were found defective and repaired; it does not apply to products in which no defect was
found and returned as is or merely recalibrated. It may be possible for out-of-warranty products to be returned to
the exact original specifications or dimensions.
* Technical description of the defect: In order to properly repair a product, it is absolutely necessary for Cooper to
receive information specifying the reason the product is being returned. Specific test data, written observations on
the failure and the specific corrective action you require are needed.
CF37 3 07/02/01 (V-9/96)
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