RKI Instruments GD-70D Series - Manual (Page 10)

1 Overview 1-4. Names and functions for each part
GD-70D - 10 -
<Front Panel and Character LCD>
① MODE key Used to enter the maintenance mode.
It is also used to cancel or skip in a specific mode.
② TEST/SET key Used to enter the test mode.
It is used for value confirmation and so on in a specific mode.
③ ▲ key Used to switch screen or change a value (UP).
④ ▼ key Used to switch screen or change a value (DOWN).
⑤ Lock lever Lever to lock the main unit. Push it to attach or detach the main unit.
⑥ Sensor unit nameplate
display window Window to look at the nameplate of the sensor unit.
You can identify the currently attached sensor unit.
⑦ Power lamp (POWER) Power lamp. It lights in green when the power is on.
⑧ First alarm lamp
(ALM1) First alarm lamp. It lights in red when the first alarm is reached.
⑨ Second alarm lamp
(ALM2) Second alarm lamp. It lights in red when the second alarm is reached.
⑩ Fault lamp (FAULT) Fault lamp. It lights in yellow when an abnormality is detected in the detector.
⑪ Gas name display Displays the gas name in chemical formula and so on (e.g. Silane = SIH4).
⑫ Concentration value
display Displays the gas concentration and so on.
⑬ Unit display Displays the unit according to the specification (ppm, ppb, vol%, %, %LEL).
⑭ Concentration bar
indicator The detectable range (full scale = FS) is divided into 20 with bars. The
increase in concentration is displayed in proportion to the full scale.
⑮ Alarm setpoint
indicator The alarm setpoints (AL1 and AL2) are indicated on the concentration bar.
⑯ Flow rate indicator Displays the suction flow rate. The center of the bars means the normal
suction flow rate of 0.5 L/min.
⑰ Communication
indicator For GD-70D-NT, this indicator is displayed while transmitting data with the
upper unit (TX, RX).
⑱ Maintenance indicator Displayed during the maintenance mode. When this indicator is displayed,
the alarm contact is disconnected to be disabled.
⑲ Inhibit indicator Displayed when the inhibition (point skip) is set.
⑳ Pyrolyzer unit
connection indicator Displayed when the dedicated pyrolyzer unit (PLU-70) is connected.
c MODE key
d TEST/SET key
e ▲key
f ▼key
g Lock lever
h Sensor unit nameplate display window
i Power lamp
j First alarm lamp k Second alarm lamp
l Fault lamp
⑪ Gas name display
⑫ Concentration
value display ⑬ Unit display
⑭ Concentration
bar indicator
⑮ Alarm setpoint
indicator
⑯ Flow rate
indicator
⑰ Communication
indicator
⑱ Maintenance
indicator
⑲ Inhibit indicator
⑳ Pyrolyzer unit
connection indicator