UNI 321 User’s Guide
11
Battery Low alarm
：
Battery Empty prompt
Buzzer 1 beep per minute
LED 1 flash per minute
1 vibration per minute
Battery fail alarm
：
Buzzer 1 beep per second
LED 1 flash per second
“bAT LoW”1 flash per second
Sensor error
：
Buzzer 1 beep per second
LED 1 flash per second
“SEN Err”1 flash per second
Troubleshooting
Problem
Possible reason
Solution
Cannot turn on unit
Depleted or defective battery
Call authorized service center
Weak or No Response
Filter(s) plugged
Replace external filter clip or
internal filter
Buzzer, LED, or vibration
alarm inoperative
Bad buzzer, LEDs, or vibration alarm.
Call authorized service center
Blocked alarm port
Clean or unblock alarm port
