RKI Instruments GD-K71D - 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