UNI 321 User’s Guide Contents Read Before Operating ......................2 General Information ........................3 User Interface ........................3 Display ..........................3 Normal Operation ......................3 Normal Mode Operation ......................4 Turning the Unit On ......................4 Warm-up Sequence ......................4 Remaining Time Display ....................
UNI 321 User’s Guide Read Before Operating This manual must be carefully read by all individuals who have or will have the responsibility of using, maintaining or servicing this product. The product will perform as designed only if it is used, maintained and serviced in accordance with the manufacturer’s instructions.
UNI 321 User’s Guide General Information The UNI 321 is a disposable or maintenance-free version of the UNI single gas detector. It detects H S, CO or O in a selection of models for an operation life of either 12 months (MP101), 24 months (MP102) or 36 months (MP103).
UNI 321 User’s Guide Normal Mode Operation Turning the Unit On NOTE: ONCE THE UNIT IS TURNED ON IT CANNOT BE TURNED OFF AND THE BATTERY LIFE COUNTDOWN TIMER BEGINS. Press and hold the Right Key for 3 seconds, until the LCD displays , the buzzer beeps, and the green LED flashes.
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UNI 321 User’s Guide Bump Fail Alarm (For Service Use Only) If the instrument fails a Bump test using the Docking Box or CaliCase, it will alternately display and the remaining run time once per second. Bump Due Alarm (For Service Use Only)
, with the first digit flashing. The UNI 321 preset password is 0000. Use the Left [OK↑] Key to increase the number, and the Right [→ ] Key to move the cursor. Once all four digits are entered, the cursor will move to “OK”, causing it to flash.
Sheets of 5 “peel-and-stick” internal filters are available for this purpose: 1) Turn off the UNI 321 and place it face down on a soft surface. 2) Use a T10 Torx screwdriver to loosen (counterclockwise) each of the four screws.
2 years for MP102 3 years for MP103 mPower Suite is the PC software used to show and set more configuration parameters of UNI 321 instrument through the UNI Single Docking Box MP100T or CaliCase System MP300T1. mPower Suite (MP600)
UNI 321 User’s Guide Sensor Configurations Sensor Range Resolution Span High Panel Ring T90(s) (ppm) (ppm) (ppm) (ppm) (ppm) 0-500 0-100 Light Blue Sensor Range Resolution Span High Panel Ring T90(s) 0 - 30 19.5 23.5 Dark Blue CAUTION Use only mPower sensors.
UNI 321 User’s Guide Alarm Signal Summary LCD Display Reason/Alarm Signals Low alarm: Buzzer 2 beeps per second LED 2 flashes per second 1 vibration per second “LOW” 2 flashes per second High alarm: Buzzer 3 beeps per second LED 3 flashes per second 1 vibration per second “HIGH”...
UNI 321 User’s Guide 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:...
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UNI 321 User’s Guide mPower Electronics, Inc. 3046 Scott Boulevard, Santa Clara, CA 95054 Phone: (408)320-1266 Fax: (669)342-7077 info@mpowerinc.com www.mpowerinc.com...
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