8. CALIBRATION
Each meter already adjust & calibrate according the
condition for the 100 mV signal input to let the display
reading full scale & 0 mV input signal to let the meter
reading zero value.
Each optional pressure sensor ( PS100-XXBAR ) are
designed to meet the 100 mV output to let meter show
the full scale value & the 0 mV output signal for the
meter to read zero value.
General speaking it is not necessary to make any new
calibration procedures both of pressure meter & the
the external pressure sensor due to those two units
already done the well calibration typically.
Due to the environment temperature may drift seriously or
after a long time operation....., the meter's zero & gain
( span ) value may drift. If intend to make the measurement
precisely, it can make the new calibration as :
8-1 Zero calibration
1) Connect the meter with the pressure sensor, power on the
meter. No pressure signal into the sensor.
2) At the same time hold the following two button continuously .
" Hold Button " ( 4-3, Fig. 1 )
" Max./Min. Button " ( 4-4, Fig. 1 )
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