SHIMPO FGV-X - Manual (Page 3)

3
Tension Measurement
To measure tensile force, use the hook attachment. The
display will show the force measured and a minus sign (-
) will appear on the left of the display (to the left of the
digits).
NOTE: To display no sign (plus) for tensile force, consult
the “Function Setting” section.
Compression Measurement
To measure compression force, use the flat head
attachment. No sign will appear on the left of the display
during a compression measurement.
NOTE: To display minus sign (-) for compression force,
consult the “Function Setting” section.
Low Battery
When battery charge is low, LO BAT will appear on the
display indicating the batteries need to be charged.
Charging time of fully depleted batteries is approximately
18 hours when the unit is off. The adapter/charger
automatically shuts off when the battery is at full charge
to protect the battery.
Note: The adapter/charger can be used to power the unit
during battery charging, but will lengthen charging time.
Auto Power Off
If the gauge is on and there is no activity for 10 minutes,
the unit automatically powers off to conserve battery
charge. PWR appears above the display digits to notify
that there is 1 minute before power off. If the adapter/
charger is powering the gauge, auto power off function
becomes inactive.
NOTE: To modify the auto power off function, consult
the “Function Setting” section.
Tracking Function
A tracking function has been introduced to check and
compensate for temperature drift. When measuring very
minute forces (a few ounces or grams) and at a very
slow rate, you may want to turn off the tracking function.
To turn the tracking function off, follow the steps below:
1. Turn POWER off.
2. Press PEAK and UNIT switches simultaneously and
hold, then press and release POWER (If tracking
function was on, the display will show TRK OFF
momentarily)
3. Release PEAK and UNIT.
The tracking function is now off. Repeat above steps to
turn it on. The gauge will display TRK SET when turned
on. It is a good idea to have this function on at all the
times unless it is absolutely necessary to cancel it.
External Device Communications
When operated with the appropriate output cable, the
FGV-X offers output capabilities.
Overload
Even though each model is able to withstand an overload
of 200% of its rated capacity, caution should be exercised
that this does not happen, otherwise the sensor will be
damaged. To protect the gauge and/or the sample under
test when a motorized stand or some other device is
used in conjunction with the gauge, two overload output
OC NPN transistors are available to be used to disconnect
power when the overload condition reaches 120% of
the gauge’s rated capacity. One transistor is for tension
and the other for compression. See figure 2.
Analog Output
An analog output signal is available for recording
purposes. The amplitude of this signal is ± 1 VDC. The
voltage is positive when compression testing is performed
and negative for tension. The signal characteristics are
as follows:
Amplitude Amplitude Amplitude Amplitude Amplitude ± 1 VDC
Generated by Generated by Generated by Generated by Generated by 12-bit D/A converter
Signal update Signal update Signal update Signal update Signal update 100 times/sec (update every 10 msec)
Load impedance Load impedance Load impedance Load impedance Load impedance 10 KW minimum
Connector pins Connector pins Connector pins Connector pins Connector pins Pin #1 signal output (analog)
Pin #2 GND (analog)
(see Fig.3 & Table 1)
NOTE: When the zero switch is pressed to tare the gauge
the analog output goes to 0V automatically.
Fig. 2