UNI 321 User’s Guide
3
General Information
The UNI 321 is a disposable or maintenance-free version of the UNI single gas detector. It
detects H
2
S, CO or O
2
in a selection of models for an operation life of either 12 months
(MP101), 24 months (MP102) or 36 months (MP103). The detector has a large LCD
providing maximum readability in the field. Six bright red LEDs allow for quick alarm
notification. Constructed of strong and durable material, the UNI 321 is designed to be
comfortable, yet drop-resistant.
User Interface
Display
1.
Gas name, includes: CO, H
2
S and O
2
2.
Remaining time unit: Months, Days, Hours
3.
Question mark: Daily alarm test needed; Bump test
due; Perform menu function
4.
OK: Accept menu entry; Unit status indicator
5.
Gas concentration unit (for alarm setting display)
6.
Remaining operating time (Months/Days/Hours)
7.
Low battery warning
Normal Operation
Normal operation is limited to the following functions
•
Displaying the remaining operating time (the unit cannot be turned off)
•
Displaying (and logging) the Alarm Level if this concentration of gas is exceeded
•
Entering Configuration Mode to perform a fresh air zero calibration
•
Replacing the sensor filter if used in especially highly dusty or moist environments
Full bump test or calibration, and setting other functions can only be performed using a UNI
Docking Box MP100T or the CaliCase MP300T1 by a qualified service technician.
Alligator Clip
Power On-Off/ Move
Cursor
Key
LED Alarm
LED Alarm
Remaining
Operating Time
Display
Confirm Action/
Number Increase
Key
Sensor
Buzzer
