General Tools and Instruments WBGT8778 - Manual (Page 6)

5
Unscrew the black
globe with sensor
sheath (see pic. A)
before calibration.
Follow the illustration
on page 7 to recap
sensor sheath after
completing calibration.
Pic. A
The meter can be calibrated on the
humidity by end users with 33% and
75% salt solution. The ambient
condition is recommended to be at
o 23+/-2 C and stable humidity. Users
can terminate the calibration anytime
by turning off the meter.
RH CALIBRATION
6. TRIPOD MOUNTING
The meter can fit on a tripod for long
time monitoring. A built-in thread is
on the rear side of the meter.
5. AUTO POWER OFF
The meter turns off automatically
after 20 minutes non-operation.
To override the function, hold down
and for 2 seconds to turn on
the meter. The LCD will display “n”
and then enter measuring mode.
(Fig. C)
MODE MODE
Fig. C
Sensor
probe
Sensor
connector
Black globe
with sensor
sheath