UNI MP100 Series Quick Start Guide

Read Before Operating

The User's Guide 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.

User Interface

The UNI's user interface consists of the LCD display, LEDs, an alarm buzzer, two keys (Left Key for Confirm/Number increasing and Right Key for Power/Cursor moving), an alligator clip, and a chemical sensor.

User Interface Components:

• LED alarm window: Indicates alarm status.
• Alligator clip: For attaching the device.
• LCD Display: Shows gas concentration and other information.
• Battery status indicator: Displays current battery charge.
• Confirm/Number increasing key (Left Key): Used to confirm selections or increase numerical values.
• Power/Cursor moving key (Right Key): Used to power on/off or move the cursor.
• Sensor with ID on label: Detects specific gases.
• Buzzer: Emits audible alarms.

Display Detail

The display shows various information and indicators. Imagine a screen with numerical values and labels, similar to a digital readout.

1. Gas name: Displays the name of the detected gas, such as CO, H₂S, SO₂, or O₂.
2. Question mark (?): Indicates a pending operation or prompt.
3. OK status indicator: Confirms successful operation or accepts number entry.
4. Concentration unit: Shows the unit of measurement, e.g., ppm, %, mg/m³, etc.
5. Battery charge status: Indicates the current battery level.
6. Alarm type indicator: Shows the type of alarm (e.g., HIGH, STEL, LOW, TWA).
7. Zero in progress indicator: Appears during zero calibration.
8. Calibration in progress indicator: Appears during span calibration.
9. Concentration or other numerical value: The primary display for gas concentration or other data.

Turning the Unit On

Press and hold the Right Key for 4 seconds until the LCD displays "On", the buzzer beeps, and the green LED is on. The unit enters a warm-up and self-test sequence, showing the firmware version (e.g., "VER", "1.0.0.0") and programmed alarm limits (STEL, TWA, etc.).

Note: Some units may need several minutes to an hour to stabilize and should be re-zeroed at that time.

Turning the Unit Off

In normal display mode, press and hold the Right Key for a 5-second countdown until the unit powers off.

Normal Mode

In normal mode, the gas concentration is continuously displayed on the LCD. The unit alarms if a pre-set limit is exceeded. The user can check various other values like STEL, TWA, PEAK, and (for O₂) MIN by pressing the Right Key. Alarm events are also shown.

Enter Configuration Mode

Press and hold the Left and Right keys together for 3 seconds until "PWD" is displayed, prompting password entry. To input the password, use the Left Key to increase the number, and the Right Key to move the cursor. The default password is 0000. After all four digits are entered, the cursor will move to "OK". Use the Left Key to accept and enter Config Mode.

Alarm Limits

Alarms are triggered when readings are above the Low or High Alarm limit. To adjust an alarm limit, enter Config Mode and scroll to the desired alarm: SET HIGH\LOW\STEL\TWA?.

• Press Left to display the alarm value with the first digit flashing.
• Use Left to move to the desired flashing digit.
• Use Right to increase the value and cycle 0-9.
• When finished, scroll Right to OK and press Left to save and exit.

Oxygen Monitors

Standard Oxygen Monitors alarm when readings are either below the Low Alarm or above the High Alarm. Inert Oxygen Monitors give no alarm at 0-4% or >19.5% O₂. Low alarm is at 4-5% O₂, and High alarm is at 5-19.5% O₂. The 4% & 5% Low and High limits can be adjusted, but the 19.5% value is fixed.

Zero (Fresh Air) Calibration

Zero calibration sets the base line for the sensor and is done in fresh air or other clean air source. Enter Config Mode and "AiR?" displays as the first menu item. Press the Left key to start the 15-second zero calibration countdown, after which a "pass" or "fail" result will be displayed.

To abort, press the Right key during the 15-second count, and "AbRT" displays to confirm.

Configuration Mode Menu

In Config Mode the user can do calibrations and change various operating parameters:

• AiR, SPAN: Zero or Span calibration.
• BUMP: Bump test.
• SET HIGH\LOW\STEL\TWA: Alarm limits.
• SET Cal: Change span value.
• CAL INTV, BUMP INTV: Span or bump interval.
• SET UniT: Change concentration unit.
• Vib SET: Vibrator enable/disable.
• P-on Zero SET: Power on zero enable/disable.
• FAST SET: Fast power on enable/disable.
• RST cF9: Reset configuration to default values.
• EXIT: Exit Config Mode.

In Config Mode, in general, use the Left Key to increase a number or confirm, and use the Right Key to move the cursor or move to the next programming item.

Exit Configuration Mode

Scroll to "EXIT?" and press the Left Key to exit Config Mode and return to Normal Mode.

Daily Self-Test

Press the Left Key to confirm that the LEDs flash, the buzzer beeps and the unit vibrates if programmed to do so.

Span Calibration

Span calibration uses a known concentration gas to determine the response of the sensor to the gas.

1. Attach the Calibration Adapter over the inlet port on the front of unit by pressing it into place. (Imagine a small, cylindrical adapter fitting over a circular port on the device's front.)
2. Use a fixed-flow regulator with a flowrate of preferably about 0.3 to 0.5 LPM. Higher flowrates can be used if necessary, but not lower. For reactive gases, e.g., hydrogen chloride, hydrogen fluoride, ozone, chlorine dioxide, phosphine, ammonia and ethylene oxide, be sure to use Teflon tubing connections.
3. Enter Config Mode and scroll to "SPAN?".
4. Start the gas flow, and press the Left key to start the calibration countdown. The default count time is 60 seconds, but some sensors will go longer.
5. When finished, a "pass" or "fail" result will be displayed. Turn off the gas supply, remove the calibration adapter, and exit to Normal Mode.
6. To abort at any time during the countdown, press the Right Key and "AbRT" is displayed.

Maintenance and Service

If used in high-dust environments, replace the inlet filter regularly. Battery and sensor can be replaced as needed. For other maintenance, contact mPower's service department or refer to the full User Manual.

Maintenance Steps:

• Removing unit cover: Unscrew four screws, then turn around the detector to remove the unit cover.
• Replacing sensor: Once the unit cover is removed, the sensor can be replaced.
• Replacing rubber holder with filter: After sensor replacement, ensure the rubber holder with filter is properly seated.
• Replacing battery: The battery can be replaced by opening the battery compartment.

Proper Product Disposal at The End Of Life

The Waste Electrical and Electronic Equipment (WEEE) directive (2002/96/EC) is intended to promote recycling of electrical and electronic equipment and their components at the end of life.

The symbol of a crossed-out wheeled bin ☒ indicates separate collection of waste electrical and electronic equipment in EU countries. This product may contain one or more nickel-metal hydride (NiMH), lithium-ion, or alkaline batteries. Specific battery information is given in this user guide. Batteries must be recycled or disposed of properly. At the end of its life, this product must undergo separate collection and recycling from general or household waste. Please use the return and collection system available in your country for the disposal of this product.