Turning the Unit On
Press and hold the Down Key for 3 seconds, until
the buzzer beeps and the red LED flashes. After a
warm up and self-test sequence, the unit enters
normal reading mode, showing real time gas
concentrations.
Turning the Unit Off
In normal reading mode, press and hold the Down
Key for a 5-second count down, until “Unit Off” is
displayed.
Charging
Always fully charge the battery before use. Plug
charger to the bottom of MP18X. Unit LCD will
show charge status. While charging, the LCD
displays a battery icon cycle from empty to full.
When the battery is fully charged, the LCD displays a
full battery.
Water-trap Filter
Water-trap filters (P/N: M490-0005-010) are used
to protect the sensor from dust and aerosols in dirty
environments. The filter should be twisted on to the
gas inlet before the instrument is used replaced once
its surface is dirty.
Testing the Alarms
Important! Test the alarms prior to performing a
bump or span calibration test. If any alarm does not
respond, check the Alarm Settings in Config Mode to
make sure all alarms are enabled (Config Mode →
Alm Setting → Alarm Settings → Both Enabled). If
any alarms are enabled but are not functional, do not
use the instrument.
Under normal operation mode and non-alarm
conditions, the buzzer, LED and backlight can be
tested anytime by pressing the Right Key once.
Normal Mode
After warm-up is complete, the unit enters normal
reading mode and displays the instantaneous gas
concentration continuously.
Other values like STEL, TWA, and temperature,
etc. can be checked by pressing the Up/Down Key to
cycle through these screens one by one.
Configuration Mode
In Config Mode, the user can perform a sensor
calibration, change the alarm limits and set up other
parameters.
Enter/Exit Config Mode
Press and hold the Up and Down Keys together
for 3 seconds, to enter Config Mode.
• The Config Mode is password protected.
• The default password is “0000”.
• After all four digits are entered, move the cursor
to √and press the Up Key to enter config mode.
• Press the Left Key to exit Config Mode.
Config Mode Menu
• Calibration:
Zero Calib, Span Calib, Set Cal.Gas, Set Span
Value, Set Span 2 Value
• Meas.:
Measurement Unit, Measurement Gas
• Alm Setting:
Alarm Limits, Alarm Mode, Alarm Settings,
Comfort Beep, Man Down Alarm
• Datalog:
Clear Datalog, Interval
• Mnt (Monitor) Setup:
Data & Time, Display, Pump Speed, Pump Stall,
3-Point Cal., Rolling Graph, Real Time Data,
Language, Self-Zeroing
• Wireless:
Radio On/Off