RKI Instruments GD-K71D User Manual
Page 28

PT2E-1052
27
5−5−2.Zero adjustment
This section is used to adjust zero level.
①Press MODE switch for above 3 seconds,
and the maintenance mode starts.
(SKIP light flashes)
②Select “1-1” by FLOW ADJ./▲▼switch
and press TEST/SET switch to start zero
adjusting mode. The zero suppression
circuit is released and actual zero level is
displayed.
③Supply fresh air. Press TEST/SET switch
after the reading gets stable, and the zero
is adjusted. (LED flashes during adjustment).
④After completion of zero adjustment,
press MODE switch to return the Menu.
⑤When return to detection mode, press MODE
switch again for above 3 sec.
The SKIP light turns off to show detection
mode
● ○ ○ ◎
PW/TR ALM1 ALM2 SKIP
● ○ ○ ◎
PW/TR ALM1 ALM2 SKIP
● ○ ○ ◎
PW/TR ALM1 ALM2 SKIP
● ○ ○ ○
PW/TR ALM1 ALM2 SKIP
After completion of adjustment, be sure to return detection mode(Only
PW/TR light is ON) by pressing MODE switch.
WARNING
CAUTION
* Note
When make zero adjustment, supply fresh air to the detector head and adjust it
after reading gets stable.
*Note
The reading may slightly changes after zero adjustment.
In such case, make fine adjustment with FLOW ADJ./
▲ ▼ switch. After that, press. TEST/SET switch.
Pressing TEST/SET switch, zero set is completed.
When leave it alone on maintenance mode, this returns to detection
mode automatically after 10 hours.
CAUTION
● ○ ○ ◎
PW/TR ALM1 ALM2 SKIP