mPower Electronics MP100 UNI Single-Gas Detectors User Guide

mPower Electronics MP100 UNI Single-Gas Detectors

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.

WARNING!

• Never operate the monitor when the cover is removed.
• Remove the monitor cover and battery only in area known as non-hazardous.
• Use only mPower’s lithium battery part number M500-0001-000 [1.17.02.0002] (3.6V, 2700mAH, AA size) or part No. ER14505 cell manufactured by EVE Energy Co., LTD
• This instrument has not been tested in an explosive gas/air atmosphere having an oxygen concentration greater than 21%.
• Substitution of components will impair suitability for intrinsic safety.
• Substitution of components will void warranty.
• It is recommended to bump test with a known concentration gas to confirm the instrument is functioning properly before use.
• Before use, ensure that the colorless ESD layer on the display is not damaged or peeling. (The blue protective film used for shipment may be removed.)

General Information

The UNI (MP100) is a single sensor, portable, personal toxic gas monitor. It displays gas concentration continuously on a big segment LCD. It also monitors the STEL, TWA, Peak and Minimum (for O2 only) values, and these can be displayed on demand. High, Low, STEL and TWA alarm thresholds are configurable. The shell is made of high strength, durable material. The two- key operation is simple to use. Sensor and battery can be replaced easily. Calibration is also very convenient.

User Interface

1. Audible Alarm Port
2. LED alarm window
3. LCD
4. Left Key (Confirm/Number increasing)
5. Right Key (Power On-Off/ Cursor moving)
6. Alligator clip
7. Sensor Gas Inlet
8. Vibrator

Display

1. Gas name, includes: CO, H2S, or O2
2. Question mark (to confirm action)
3. Unit status indicator “OK” and to confirm entry
4. Gas unit, includes: x10-6, ppm, %, mg/m3, µmol/mol
5. Battery charge status
6. HIGH, LOW, STEL, TWA alarm indicator (when flashing)
7. Span calibration (in process or due)
8. Zero calibration (in process or due)
9. Concentration reading or another parameter

Operation

Turning the Unit On and Off
Press and hold the Right Key for 3 seconds, until the red light, buzzer, and vibrator all trigger, followed by the green light, and the LCD displays “On”. To turn off, press and hold the Right Key from normal display mode for a 5-second count-down, until the unit displays “Off”.
Warm-up Sequence
After powering on, the unit enters a warm up and self-test sequence, shows the firmware version as follows:

• If the sensor cannot be identified or is not installed, the screen alternately displays
• If the Bump or Cal Due setting is enabled and the due date has passed, the display will alternate between or and . The Left Key must be pressed to acknowledge, otherwise the instrument will turn itself off automatically after 15s.

Lastly, the following values will be shown accordingly:

• High alarm threshold
• Low alarm threshold
• STEL (short-term exposure limit) alarm threshold
• TWA (8-hour time-weighted average) alarm threshold

Normal User Mode

Real-Time Readings When warm-up is complete, the unit enters normal mode and starts displaying instantaneous gas concentrations. By pressing the Right Key the user can check other values including STEL,TWA, PEAK, MIN (for O2 only) and Alarm Log. The display returns to real time readings from any other screen if there is no key action for 60 seconds.

STEL This displays the Short Term Exposure Limit (STEL) calculation, which is the average concentration in a moving window over the previous 15 minutes. The STEL value rises and falls with some lag time over the instantaneous reading. A STEL alarm cannot be cleared except by turning the unit off and back on, but will clear automatically after 15 minutes in clean air.
TWO This displays the Time-Weighted Average (TWA) calculation, which is the average concentration times the fraction of 8 hours that the instrument has been on. The TWA value is similar to a dose in that it rises but never falls, until it is reset by turning the unit off. Likewise, a TWA alarm cannot be cleared except by turning the unit off and back on.

Peak The Peak screen shows the highest value since the unit was turned on.Press the Left Key to enter the Clear Peak screen and Press the Left Key again to acknowledge and clear the Peak value.
Minimum (Oxygen Sensor Only) The Minimum screen is used for the oxygen sensor only and shows the lowest value since the unit was turned on. Press the Left Key to enter the Clear Min screen and Press the Left Key again to acknowledge and clear the Min value.

Alarm Log Up to 50 alarm events lasting ≥5 seconds are logged into memory and the last 10 such events can be viewed on the instrument. When A 1 is reached using the Right Key, it  flashes between the A 1 screen and a screen showing the alarm concentration and type. Values preceded by a “–” with no alarm label indicate a negative concentration alarm event. Use the Left Key to cycle through the 10 available alarms. To view all 50 alarm events along with date and time stamps, it is necessary to use a Docking Box or CaliCase connected to a computer with mPower Suite software.

Configuration Mode
In Config mode, the user can change parameters and calibrate the unit. In general, use the Left Key to increase the number or confirm an operation, and use the Right Key to move the cursor or go to the next menu item.
Entering and Exiting Config Mode
Press and hold the Left Key and the Right Key together for 3 seconds until the password screen is displayed, followed by , one digit or cursor flashing, to prompt the user to enter the password. The default password is 0000. Use the Left Key to increase the number, the Right Key to move the cursor, and the Left “OK” Key again to accept the password input and enter Config mode. If the digit input is incorrect, use the Right Key to move the cursor and the Left Key to change the input.
NOTE: The MP100 default password is 0000. To exit Config Mode, press the Right Key until is displayed, and acknowledge with the Left Key to return to Normal Mode. Alternatively, just wait for one minute and the unit will automatically revert to Normal Mode.
Sensor Calibration and Bump Test
Before the unit can monitor gas correctly, it needs to be calibrated using zero and span gas. Calibration and Bump Tests are recorded in the instrument datalog for compliance purposes.
Zero (Fresh Air) Calibration
Zero calibration sets the baseline for the sensor. It is preferably done in the fresh air at the same ambient temperature and humidity as will be used for measurements. However, nitrogen, dry cylinder air, or other gas source is known to be free of detectable compounds can also be used. One exception is that for an oxygen (O2) sensor the Fresh Air Calibration sets the value to 20.9%, so air must be used. From the menu, press the Left Key to start a zero calibration. The unit displays a 15-second countdown followed by the calibration result as either-or. The user can abort the zero calibration during the count-down by pressing the Right Key, after which is displayed.

Span Calibration
Span calibration determines the sensitivity of the sensor to the gas. Recommended calibration gases and concentrations are listed in Section 7.6 at the end of this manual and in TA Note 4 (available at www.mpowerinc.com). Special calibration procedures for highly reactive gases are described in TA Note 6. Oxygen sensor calibration is reversed from other sensors and uses pure nitrogen with 0% oxygen during the span procedure and 20.9% oxygen (air) during the fresh air “zero” procedure. We recommend using a fixed flow regulator of at least 0.3 LPM but no more than 0.6 LPM. Use as short tubing connections as possible.
Span Calibration Procedure

1. Connect the Calibration Adapter to the span gas cylinder’s regulator and snap it into place over the UNI sensor.
2. Enter the menu, start the gas flow, and press the Left Key to start the calibration count-down. The calibration time is typically 60 seconds but may be shorter or longer depending on the sensor type.
3. To abort the span calibration during count-down, press the Right Key, and is displayed.
4. After the count-down, the span calibration result or is displayed.
5. Turn off the gas supply and remove the Calibration Adapter.

CAUTION

During normal monitoring, never operate the MP100 with the Calibration Adaptor attached because it will block diffusion of gas into the sensor.

Bump Test
A Bump Test is a quick check to ensure that the sensor and alarms are working properly. It is done with the same gas as is used for span calibration. Enter the menu, start the gas flow, then press the Left Key to start bump count-down (typically 45 seconds, but varies with sensor). After count-down, the bump test result or is displayed. To abort the bump test during count-down, press the Right Key and is displayed. Although a Bump Test is a recorded event in the datalog, the user can always do an unrecorded bump check such as by breathing into an oxygen monitor just to verify that the sensor and alarms are functioning.

Setting Instrument Configurations

Alarm Limits
MP100 toxic gas monitors alarm with 2 beeps & flashes per second when concentrations are over the Low Alarm setpoint, and 3 beeps & flashes per second when over the High Alarm setpoint. See Section 7.5 for a summary of alarm signals and Section 4.6.2 for Oxygen Monitor alarms. All the preset alarm limits, HIGH, LOW, STEL & TWA can be changed. From these menus 

and , press the Left Key to change the corresponding alarm limit, using the same process as for entering a password (Section 4.4.1):
The current setting value is displayed, with the first digit flashing:

• Use the Left Key to increase the current digit, cycling from 0 to 9:
• Use the Right Key to move the cursor to the next digit:
• After all digits are entered, use the Right Key to move to the “OK” symbol, and press the Left Key to save the entry. The unit will display SAVE for a few seconds while storing the value; it is not necessary to press OK to initiate saving.

NOTE: The MP100 will show an error message “Err” if:

• The Low alarm is attempted to be set higher than the high alarm setting.
• The High alarm is attempted to be set lower than the low alarm setting.
• The entered value is outside the measuring range.

Oxygen Monitors
Standard Oxygen Monitors: Oxygen monitor alarms function differently than toxic gas montior alarms in that the normal ambient air reading is 20.9% and an alarm is triggered when the reading goes BELOW the Low alarm setpoint or ABOVE the High Alarm setpoint. Oxygen monitors do not have STEL or TWA alarms.
Inert Oxygen Monitors: Oxygen monitors programmed for inert gas applications do not alarm when the O2 concentrations are below the Low Alarm setpoint or above 19.5%. They give a Low Alarm (2 beeps/sec) when between the Low and High Alarm setpoints and a High Alarm (3 beeps/sec) when between the High Alarm setpoint and 19.5%. The default Low and High alarm setpoints are 4% and 5%, respectively, but can be adjusted, while the 19.5% limit is fixed. Thus, this version is useful both for oxygen deficiency monitoring in normal ambient air when users do not wear a breathing apparatus, and in inert gas environments, where breathing apparati are required, to warn of high oxygen levels that may allow explosion to occur.

Span Value
The span gas concentration can be changed from the Cal SET menu using the same process as for setting alarm limits.
NOTE: The MP100 will show an error message “Err” if:

• The Span setting is less than 5% of the measuring range or greater than the measuring range.
• For the Oxygen sensor, the span setting is greater than 19.0%.

Bump/Cal Intervals

In the Bump and Cal Interval menus, the LCD alternates between: Press the Left Key to enter the menu and change the interval using the same process as for setting alarm limits. Note that a value of 0 means Bump or Cal notifications are turned off.
The MP100 will show “Err” if the interval is out of the valid range: 0-180 day(s).
Gas Concentration Unit
The gas concentration unit menu alternates between and . Press the Left Key to enter the gas unit sub-menu, showing the currently selected unit blinking. Unit options include x10-6, ppm, mg/m3 and µmol/mol for toxic gas sensors, and % for oxygen. Use the Right Key to scroll through the unit list and select, and the Left Key to confirm and exit.

Vibrator Enable/Disable
The vibrator consumes a lot of power and can be disabled to extend the battery life. The Vibrator menu alternates between and Press the Left Key to change the vibrator enable/disable status. The current vibrator status is displayed, alternating between if enabled, or between and status, and use the Left Key to confirm and exit

Power-on Zero Enable/Disable

The sensor baseline may shift due to changes in environmental conditions, such as temperature or humidity, and require a zero calibration. The MP100 can prompt the user to zero calibrate every time the unit is powered on, and this feature can be enabled/disabled. The Power-on Zero menu alternates between and. Press the Left Key to change the power-on zero enable/disable status. The current status is displayed, alternating between and if enabled, or and if disabled. Use the Right Key to change the status, and the Left Key to confirm and exit. When the unit is re-started and the user is prompted with to zero, it must be initiated within 30 s or else the zeroing is skipped.

Fast Power-on Enable/Disable
If fast startup is enabled, the screens showing HIGH/LOW/STEL/TWA alarm threshold values will be skipped during warm-up sequence. On start-up, the unit shows the firmware version number and then goes directly to concentration readings. The fast power-on menu alternates between and . Press the Left Key to change the
fast startup enable/disable status. Enable or disable Fast Power-on and confirm the status using the same process as for Vibration Alarm or Power-on Zero enable/disable.
Configuration Reset
If some unit parameters are incorrect and the user has difficulty correcting them, this menu can be used to set the all the configuration parameters back to the factory default condition. From the (reset) menu. Then press the Left Key to confirm or the Right Key to abort the reset.

Computer Interface

The computer interface requires a Single Docking Box or CaliCase Docking Station connected to a PC fitted with mPower Suite software. mPower Suite can be used to 1) download logged alarm and calibration events, 2) upload configuration parameters to the instrument, and 3) upgrade the instrument firmware. mPower Suite and instrument firmware can be downloaded from the website at https://www.mpowerinc.com/software-downloads/.

1. Connect the USB cable to both the Docking Box and the PC.
2. Turn on the instrument and insert it face down into the Docking Box.
3. Start mPower Suite on the PC and click the “Search” button on the bottom panel.
4. Find the instrument in the left bar Device Connected list. Click on the S/N to get the configuration file from the instrument.
5. Edit the configuration parameters as desired and click “Write” to upload the configuration to the instrument.
6. “Read” downloads the current configuration file from the instrument.
7. “Save” stores the current configuration file to the PC.
8. “Load” calls up a stored configuration file from the PC to mPower Suite.
9. To update the instrument firmware, select “Firmware Upgrade”. The firmware must first be downloaded to the PC from the mPower website www.mPowerinc.com.
10. Alarm Events are shown in the bottom half panel and Bump/Calibrations times can be viewed by clicking on the corresponding tab.
11. To export data to a csv file readable by Excel or other spreadsheet software, move the cursor over the bottom data panel, right-click the mouse, and then select “Export Event Log”.

UNI Docking Box (MP100T) Calibrations

Docking Box Set-up
Before the Docking Box can be used for calibrations, it must be set up for the desired gas type and span concentration.

1. Connect the USB cable to both the Docking Box and the PC.
2. Start mPower Suite on the PC and click the “Search” button on the bottom panel.
3. Find the Docking Box in the left panel Device Connected list and click on it to get the Docking Box configuration page.
4. Select the Gas Name from the pull-down menu and edit the cylinder gas concentration, lot number and expiration date as needed.
5. Click “Write” to upload the configuration to the Docking Box. As a reminder, attach a label to the front panel indicating the gas type. Labels for CO and H2S are provided.
6. The Docking Box will not allow calibrations or bump tests after the cylinder expiration date entered.
7. Hibernate Timeout is the number of seconds of inaction before the Docking Box turns itself off automatically. Press the Cal/ button to turn back on.
8. “Save” stores the current Docking Box configuration file to the PC.
9. “Load” calls up a stored Docking Box configuration file from the PC to mPower Suite.
10. To update the Docking Box firmware, select “Firmware Upgrade”. The MP100T firmware must first be downloaded to the PC from the mPower website www.mPowerinc.com. 

Docking Box Gas Connection and Calibration Process

1. Connect gas and regulator to the quick-connect in the Cal gas inlet port of the Docking Box using 6-mm or ¼-inch o.d. tubing
2. If ambient air is not free of detectable compounds, connect the air inlet to a fresh air source.
3. If desired, connect tubing to the gas outlet to exhaust away from the operator breathing area.
4. Place the UNI instrument face-down into the cradle.
5. If the Status LED [4] is off, press Cal/ [5] until the LED turns green.
6. Push Cal [5] to initiate calibration or Bump [6] to run a bump test. The LED should blink green for about 100 s during calibration or 25 s during a bump test.
7. If the calibration or bump is successful, the Unit LED [3] will be green, otherwise red.
8. Up to 2000 Cal or Bump reports will be saved in the internal storage of the Docking Box.
9. To power off, hold the Cal button until the status LED turns off.

Unit LED [3]

| Green blinking| None| Cal/bump testing
Green| Beep Once| Cal/bump test pass
Orange| None| Sensor type mismatch
Red| 3 beeps per sec| Cal/bump test fail
Status LED [4]| Green| None| Power On
Green blinking| None| Low battery
Orange| None| Charging
Red blinking| None| Pump block

Docking Box Data Download and Calibration Certificates

1. To download Cal/Bump test reports, click the Download Log button on the bottom panel. It is not necessary to have a UNI in the Docking Box. View the reports under the Datalog tab.
2. To export data to a csv file readable by Excel or other spreadsheet software, move the cursor over the right data panel and click the right mouse button, and then select either the current Cal/Bump result (Single Datalog) or all the stored results (Whole Datalog).
3. To print a Calibration Certificate, right-click the mouse in the right panel and select Generate Certificate. Enter any desired information such as operator name and cylinder lot number, and click Print at the bottom.

Maintenance and Specifications

CAUTION!

Maintenance should be performed only by a qualified person who has proper training and fully understands the contents of the manual.

Battery replacement

the battery typically lasts 3 years, but may be drained faster if the unit has frequently gone into alarm. When the charge is low, the unit displays a red battery icon and a battery low alarm is triggered once per minute. When the battery is dead, is displayed and the battery dead alarm triggers every second. The battery needs to be replaced, as follows:

1. Turn off the MP100 and place it face down on a soft surface.
2. Use a T10 Torx screwdriver to loosen each of the four screws by turning them counterclockwise.
3. Remove the top cover after carefully unplugging the buzzer connector.
4. Slide the battery out of its compartment.
5. Place the new battery into the compartment with its “+” end oriented toward the “+” on the printed circuit board.
6. Plug in the buzzer connector and reinstall the top cover.
7. Re-install the screws through the back cover. Be careful to not overtighten the screws.

WARNING!

• Never operate the monitor when the cover is removed.
• Remove the monitor cover and battery only in area known as non-hazardous.
• Use only empowers lithium battery part number M500-0001-000 [1.17.02.0002] (3.6V, 2700mAH, AA size) or part No. ER14505 cell manufactured by EVE Energy Co., LTD.

Sensor Filter Replacement

A “peel-and-stick” filter should be used on the MP100 in order to keep debris from fouling the sensor. Replace the filter whenever it appears dirty, is clogged with particles, has contacted liquid, or when sensor response becomes weak and/or slow. Use external clip-on filters when operating in dusty environments for easier filter exchange.

1. Turn off the MP100 and remove the top cover as described above for battery replacement.
2. Peel off the old filter, and gently press a new filter onto the sensor.
3. Reconnect the buzzer and reinstall the top cover as described above for battery replacement. Be careful to not overtighten the screws.

Sensor Replacement

MP100 models are designed for easy sensor replacement. CO and H2S sensors have typical operating lives of 5 years, while others are 1 to 2 years, as per warranty (See Specifications in Section 7.8).

1. Turn off the MP100 and remove the top cover as described above for battery replacement.
2. Replace the old sensor with a new one. Make sure the pins are not bent or corroded. Align the pins to the corresponding holes and push the sensor straight in. The sensor should fit flush against the printed circuit board.
3. Check the instrument filter and, if needed, replace as described in the previous section.
4. Reconnect the buzzer and reinstall the top cover as described above for battery replacement. Be careful to not overtighten the screws.

CAUTION!

Sensors are not interchangeable. Use only mPower sensors, and use only the sensor type specified for your MP100 monitor. Use of non-mPower components will void the warranty and can compromise the safe performance of this product.

Troubleshooting

Reading abnormally low

(or Fails Calibration)

| Incorrect calibration or zeroed when detectable gas is present.| Zero and Span calibrate. Ensure clean air when zeroing.
Calibration gas flow > 0.6 LPM| Use flow between 0.3 and 0.6 LPM
On-board filter plugged.| Replace filter. Use external filter clip in dusty environments.
Weak sensor.| Have Service Technician check raw counts and replace sensor as needed.
Calibration Adapter is attached.| Remove Calibration Adapter.
Reading abnormally high

(or Fails Calibration)

| Incorrect calibration or degraded span gas used or tubing absorbs span gas| Zero and Span calibrate instrument. Ensure span gas is not expired.

Used short, inert (PTFE) tubing

Calibration gas flow < 0.3 LPM| Use flow between 0.3 and 0.6 LPM
Environment contains cross- sensitive substances| Check TA Note 4 for possible cross- sensitivities.
Reading abnormally noisy

(or Fails Calibration)

| Incorrect calibration or degraded span gas used or tubing absorbs span

gas

| Zero and Span calibrate instrument. Ensure span gas is not expired.

Used short, inert (PTFE) tubing

Weak sensor.| Have Service Technician check raw counts and replace sensor as needed.
Buzzer, LED, or

vibration alarm inoperative

| Bad buzzer, LEDs, or vibration alarm.| Call authorized service center.
Blocked alarm port| Unblock alarm port.

Alarm Signal Summary

Sensor Specifications and Default Configurations

Sensor| Range (ppm)| Resolution (ppm)| Span* (ppm)| Low (ppm)| High (ppm)| STEL

(ppm)

| TWA

(ppm)

| Panel Ring| Response

Time t90 (s)

| Calibration Interval†
---|---|---|---|---|---|---|---|---|---|---
CO| 0-500| 1| 100| 35| 200| 100| 35| | 15| 3 mo
0-1000| 1| 100| 35| 200| 100| 35| 15| 3 mo
0-1999| 1| 100| 35| 200| 100| 35| 15| 3 mo

H2S

| 0-50| 0.1| 25| 10| 20| 15| 10| | 15| 3 mo
0-100| 0.1| 25| 10| 20| 15| 10| 15| 3 mo
0-200| 0.1| 25| 10| 20| 15| 10| 15| 3 mo
0-1000| 1| 25| 10| 20| 15| 10| 30| 3 mo
NH3| 0-100| 1| 50| 25| 50| 35| 25| | 150| 1 mo
0-500| 1| 50| 25| 50| 35| 25| | 150| 1 mo
Cl2| 0-50| 0.1| 10| 2| 5| 1| 0.5| | 30| 1 mo
ClO2| 0-1| 0.01| 0.5| 0.2| 0.5| 0.3| 0.1| | 120| 1 mo
COCl2| 0-1| 0.01| 0.5| 0.2| 0.5| 0.3| 0.1| | 120| 1 mo
H2| 0-1000| 1| 100| 100| 400| 400| 100| | 70| 1 mo
0-2000| 1| 100| 100| 400| 400| 100| | 70| 1 mo
HCN| 0-100| 0.1| 10| 4.7| 5| 4.7| 4.7| | 200| 3 mo
NO| 0-250| 1| 25| 25| 50| 25| 25| | 30| 1 mo
NO2| 0-20| 0.1| 5| 1| 10| 1| 1| | 30| 1 mo
PH3| 0-20| 0.01| 5| 1| 2| 1| 0.3| | 60| 1 mo
SO2| 0-20| 0.1| 5| 2| 10| 5| 2| | 15| 3 mo
ETO

(Ethylene Ox)

| 0-100| 0.1| 10| 2| 5| 2| 1| | 120| 1 mo
0-200| 0.1| 10| 2| 5| 2| 1| | 120| 1 mo
O3| 0-5| 0.01| 0.5| 0.1| 0.2| 0.1| 0.1| | 60| 1 mo
HF| 0-20| 0.1| 6| 2| 6| 6| 3| | 90| 1 mo
HCl| 0-15| 0.1| 10| 2| 5| 5| 1| | 90| 1 mo
CH3SH| 0-10| 0.1| 5| 2| 5| 2| 0.5| | 20| 3 mo
Acetaldehyde| 0-20| 0.1| 5| 2| 5| 2| 1| | 120| 1 mo
THT| 0-40| 0.1| 10| 5| 10| 5| 5| | 60| 1 mo
AsH3| 0-1| 0.01| 0.8| 0.2| 0.5| 0.3| 0.1| | 30| 1 mo

The default span setting equals the recommended span gas concentration. Calibration of these sensors requires a gas generator or other special precautions. See TA Note 6 for recommended procedures and gas sources.

Sensor| Range

(%)

| Resolution

(%)

| Span*

(%)

| Low†

(%)

| High†

(%)

| STEL

(%)

| TWA

(%)

| Panel

Ring

| Response

Time t90 (s)

---|---|---|---|---|---|---|---|---|---
O2 (Galvanic or Lead-Free)| 0 – 25| 0.1| 0.0| 19.5| 23.5| –| –| Dark Blue| 15
0 – 30| 0.1| 0.0| 19.5| 23.5| –| –| 15
O2 Inert Alarms†| 0 – 30| 0.1| 0.0| 4.0| 5.0| –| –| 15

Oxygen sensors in MP100 use pure nitrogen or other inert gas for both Span and Bump tests. Standard O2 alarms are triggered when O2 levels go either below the Low Alarm or above the High alarm. Inert monitor alarms are off below the Low alarm or above 19.5% and on above Low & High alarms but below 19.5%.

Instrument Specifications

Size| 3.46 x 2.44 x 1.3 in

(88 x 62 x 33 mm)

---|---
Weight| 4.4 oz (125 g)
Sensors| Electrochemical
Response time (t90)| 15 seconds (CO/H2S/O2)

Others vary, see individual sensor specification sheet

Battery| Replaceable AA size Lithium battery, 3 years typical operation
Temperature| -4°F to 122°F (-20°C to 50°C)
Humidity| 5 to 95% relative humidity (non-condensing)
Alarm Type| •  High, Low, STEL & TWA alarms adjustable

•  Over range alarm

•  Low battery alarm

Alarm Signal| •  95 dB @ 30 cm

•  Bright red LEDs

•  Built in vibrator

Calibration| 2-point calibration, zero and span, power on zero (user- selectable)
Event Log| Up to 50 alarm events
IP Rating| IP-67
EMI/RFI| EMC directive: 2014/30/EU
Safety Certifications| Class I, Div 1, Group ABCD Class II, Div 1, Group EFG Class III, Div 1

T4, -20°C ≤ Tamb ≤ +50°C

IECEx Ex ia IIC T4 Ga

ATEX II 1G

Ex ia IIC T4 Ga

Sensor Life| CO & H2S expected operating life 5 years or longer, others 1 to 2 years as per warranty
Warranty| 2 years on O2, CO, H2S, SO2, HCN, NO, NO2, and PH3 units including sensor; 1 year on others

Technical Support and mPower Contacts

mPower Electronics Inc.
3046 Scott Blvd. Santa Clara, CA 95054 Phone: 408-320-1266
Fax: 669-342-7077
info@mpowerinc.com www.mpowerinc.com

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