11
H ２０．０
Ｌ ４．０
▲▼
switch
３－4.
Adjustment of 4～20mA output
Pressing SET switch while is
displayed, 4mA test signal is output as shown
right figure.
Pressing ▲▼switch, it changes to 20mA output.
When SET switch is pressed during 4mA or 20mA
test signal output, LCD flashes and signal level can
be adjusted with ▲▼switch.
Press SET switch to enter adjusted level.
Pressing ●mark of MAINTENANCE switch, it
returns to .
３－5.
Sensitivity (Span) adjustment of the sensor.
The measurement result of the gas to be supplied from
GAS IN is displayed when SET switch is pressed during
is displayed
Pressing SET switch again, LCD flashes and SPAN LED
turns on to show that the span adjustment is ready.
Supply pre-known standard gas and adjust indication
with ▲▼switch.
Press SET switch to enter the adjusted value.
Pressing ●mark of MAINTENANCE switch, it
returns to .
＊ ＮＯＴＥ
4-20mA output is adjusted before shipment. However, zero or full scale
value may be changed slightly due to the condition of receiver side like
recorder etc.
In such case, adjust output according to this step.
Adjust sensitivity during LCD is
flashing, enter with SET switch.
２ ４．０
２ ４．０
SET
Before making sensitivity adjustment, be sure to make calibration by reference
gas (See step 2-2).
Calibration by reference gas is done in measurement mode.
！
WARNING
