RKI Instruments RM-5000 Series Indicator/Alarm Unit - Manual (Page 11)

3 Product Components 3-3. Names and functions for each part
- 11 - RM-5000
Number in
the figure
Item Function
(1) POWER switch Power switch.
(2) MODE key Used to enter the maintenance mode.
It is also used to cancel or skip in a specific mode.
(3) ALM2/▲ key Used to switch screen or change a value (UP).
Also used to display the second alarm (ALM2) setpoint.
(4) ALM1/▼ key Used to switch screen or change a value (DOWN).
Also used to display the first alarm (ALM1) setpoint.
(5) TEST/SET key Used to enter the test mode.
It is used for value confirmation and so on in a specific mode.
(6) Power lamp (POWER) Power lamp. It lights up in green when the power is on.
(7) First alarm lamp
(ALM1) First alarm lamp. It blinks or lights up in red when the first alarm is
reached.
(8) Second alarm lamp
(ALM2) Second alarm lamp. It blinks or lights up in red when the second
alarm is reached.
(9) Fault lamp (FAULT) Fault lamp. It lights up in yellow when an abnormality is detected
in the indicator/alarm unit.
(10) Gas concentration
digital value display
Displays the gas concentration and so on.
(11) Gas concentration bar
meter display
The detectable range (full scale = FS) is divided into 50 with bars.
The increase in concentration is displayed in proportion to the full
scale.
(12) Gas name display Displays gas name in chemical formula, etc. (e.g. CH4 for
methane)
(13) Full scale value display Displays the full scale value of a detected gas.
(14) Gas concentration unit
display
Displays the unit according to the specification (ppm, ppb,
vol%, %, %LEL).
(15) Maintenance display Displayed during the maintenance mode. When this indicator is
displayed, the alarm contact is disabled.
(16) Inhibit display Displayed when the inhibition (point skip) is set.
(17) Digital communication
display (*1)
For RS-485 communications, this indicator is displayed (TX, RX)
while transmitting data with the upper unit.
(18) Double range display
(*2) Displayed for the double range specifications (WH: High range,
WL: Low range).
(19) Maintenance port Used by a service engineer during maintenance. This is not
typically used by the user.
(20) Current/voltage display Displayed during the environmental setting (adjustment and
setting operations) for the sensor in maintenance mode.
*1: Displayed only on a model with RS-485 (option) mounted.
*2: Displayed only on NC-5001W.