Ventis™ MX4 Product Manual
13 © 2014 Industrial Scientific Corporation
Pump Fault Alarm
The system level alarms turn on and the error icon displays.
Alarm occurs when, if attached, the pump is
not operating correctly. While in alarm, every
ten seconds the monitor attempts to restart
the pump. If unsuccessful, the monitor
remains in alarm.
Note: The nominal flow rate is >200 cc/m (.2
LPM). A pump fault alarm will occur when
the flow is less than 200 cc/m +0, -25%.
Low Battery Warning Screen
A beep sounds every 30 seconds and the empty battery icon
flashes.
Alarm occurs when the monitor’s battery
reaches a low level of charge or is nearing its
end of life.
Bump Overdue Screen
A “b” indicates which sensor(s) is overdue for bump testing. Two
beeps sound every 30 seconds and the calendar and alarm icons
display.
Alarm occurs when one or more sensors are
due for a bump test. If the monitor settings
permit, an in-field bump test may be
performed in an area known to be
nonhazardous.
Calibration Due Alarm Screen
The gas value flashes for each sensor overdue for calibration.
Three beeps sound every 30 seconds and the calendar and alarm
icons display. The gas cylinder icon flashes.
Alarm occurs when one or more sensors are
due for calibration. If the monitor settings
permit, an in-field calibration can be performed
in an area known to be nonhazardous.
* The numeric mode display shows gas concentration values; the text mode display shows gas type names in place of gas values.
►Monitor Set-up
Preparing the monitor for first time use is a “3-C” process: charge (if equipped with a lithium-ion battery pack),
configure, and calibrate. This manual section covers charging and configuration for set-up purposes and can be
consulted for ongoing instruction thereafter. Immediately following this section, calibration is covered in the manual
section, Use and Service.
BATTERY PROPERTIES AND MONITOR COMPATIBILITY
Based on the customer order, the Ventis MX4 comes equipped with one of three factory installed batteries:
rechargeable Lithium-ion (Li-ion), rechargeable Extended Range Lithium-ion (extended range Li-ion), or replaceable
alkaline. The factory installed battery pack type is stated on the label affixed to the monitor box. Basic battery
properties and acceptable monitor/battery combinations are shown below.
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