RKI Instruments GD-70D Series - Modes

- 39 - GD-70D
<Detection Mode>
Flow Rate Indicator
Because the suction flow rate of the detector is automatically adjusted by the flow rate control function, the
flow rate, in principal, does not need to be controlled. As shown on the figure below, when the flow rate
does not correspond to the specified flow rate for some reasons, it is adjusted automatically.
5-5 Modes
Details on each mode are provided as follows. (* Operations are slightly different depending on the
detector type or sensor unit.)
Mode
Item
LCD Display
Details
Detection
Mode
-
Gas concentration
Gas name
Normal state
Gas Alarm
Test Mode
- Gas concentration Perform the alarm test.
User Mode
(see pg. 59)
Zero Adjustment (Span
Adjustment for oxygen)
1-1 ZERO
(1-1 SPAN for
oxygen)
Perform the zero adjustment (span adjustment for oxygen).
Setting Display 1-2 CONFIRM Show the setting of typical menus.
•
First alarm setpoint (AL1)
•
Second alarm setpoint (AL2)
•
Alarm delay time
•
Zero suppression value
•
Zero follower ON/OFF
• Sensitivity correction ON/OFF
Flow Rate Indicator
1-3 FLOW
Show the current flow rate.
Address Display
1-4 ADDRESS
Show the address.
Detector Version Display
1-5 70D VER
Show the program version of the main unit.
Unit Version Display
1-6 UNIT VER
Show the program version of the sensor unit.
Net Version Display
1-7 NET VER
Show the program version of the communication function.
Maintenance Mode
Access
1-8 M MODE Enter maintenance mode.
WARNING
• When the detector enters each mode from Detection Mode while an alarm is activated, the alarm
contact is released.
CAUTION
• If the automatic flow rate adjustment does not work (due to clogged tube or leak), you may get a
"FLOW" message (for an unstable flow rate) or an "E-05" message (for flow rate abnormalities). In
this case, you must identify the causes and take appropriate actions.
Flow rate
too low
Flow rate
too high
Normal
flow rate