The POLI MP400 is a basic 4-gas detector for worker safety in hazardous locations, with sensors for oxygen (O2),

combustibles (LEL), carbon monoxide (CO) and hydrogen sulfide (H2S). A hydrogen cyanide (HCN) version

(LEL/O2/CO/HCN) is a low-cost monitor for firefighters. The MP400 is designed to be extremely rugged with a ro-

bust housing and gas sampling by diffusion for no moving parts. The simple, 2-button operation results in ultimate

ease of use and significantly reduced time spent training the user. The rechargeable Li-ion battery pack lasts 16

hours or more in typical use, and the unique Man-Down alarm feature notifies nearby workers if the user becomes

incapacitated.

Features, Functions and Benefits

• Diffusion sampling

• Battery operation 16 hours

• Durable double shot outer case

• 360-Degree LED alarm bar

• Man-Down alarm

• USB Micro charger & communications cable

• Flip screen

• Integrated calibration cup

• Smart sensors carry ID and calibration

• 6 Months continuous datalogging

• Modular design

Multi-Gas Monitors

Ver 1.1

1-866-mPower7

MP400

Santa Clara • Houston • Shanghai • www.mpowerinc.com • HQ Office: (408) 320-1266 • 1-866-mPower7

Specifications

Detector Specifications

Size 5.74 x 3.31 x 1.65 in (140 x 84 x 42 mm)

Weight 13.5 oz (384 g)

Sensors • Electrochemical for O2, CO, H2S and HCN • Pellistor for LEL

Response time (t90)

• 15 seconds (LEL/CO/H2S/O2) • 60 seconds (HCN)

Battery Rechargeable Li-ion pack: ≥16 hours

Direct Readout

• Real-time reading of gas concentration • visual compliance indicator • battery status • datalogging on/off • STEL, TWA, peak and minimum values • Man-Down alarm on/off

Display 128 x 128 graphical LCD, 1.77 x 1.73 in (45 x 44 mm), with LED backlight for enhanced display readability. Automatic screen “flip” feature

Keypad 2 Operation keys

Calibration Manual calibration. CaliCase option allows auto-matic bump test and calibration on up to 4 units simultaneously

Alarms • Audible (95 dB @ 30 cm) • Visual (flashing bright red LEDs) • Vibration • On-screen indication of alarm conditions • Man-Down alarm

Datalogging Continuous datalogging (6 months for 4 sensors at 1 minute intervals, 24 hours/day and 7 days/week)

Charging and Communica-tion

Charging, data download, instrument setup and firmware upgrades on PC or laptop via PC comm, cradle, travel charger, or CaliCase

Temperature -4° to 122°F (-20° to 50°C)

Humidity 0% to 95% Relative humidity (non-condensing)

IP Rating IP-67

EMC/RFI EMC directive: 2014/30/EU

Safety Certifications

Class I, Div 1, Group ABCD T4, -20°C ≤ Tamb ≤ +50°C

IECEx Ex ia IIC T4 Ga II 1G Ex ia IIC T4 Ga (pending) European Conformity (pending)

Warranty 2 Years including sensors

Ordering Information

Version Sensor/Range Part No.

4-Gas

LEL 0.1 - 100% O2 0.1 - 30% CO 1 - 1000 ppm H2S 0.1 - 100 ppm

M004-0001-000

4-Gas

LEL 0.1 - 100% O2 0.1 - 30% CO 1 - 1000 ppm HCN 1 - 100 ppm

M004-0027-000

3-Gas LEL 0.1 - 100% O2 0.1 - 30% H2S 0.1 - 100 ppm

M004-0002-000

2-Gas LEL 0.1 - 100% O2 0.1 - 30%

M004-0005-000

1-Gas LEL 0.1 - 100% M004-0009-000

* Due to ongoing research and product improvement, specifications are subject to change without notice *

Distributed By:

The POLI multi-gas meters offer 4- or 5-gas monitoring of toxic gases, oxygen (O2), combustibles (LEL), carbon

dioxide (CO2) and volatile organic compounds (VOCs). The POLI MP400P is an advanced model with built-in

pump that allows a full selection of sensors for a wide range of applications, including Confined Space Entry, while

the POLI MP400 is a basic, 4-gas diffusion detector for worker safety at hazardous locations. Smart sensors carry

calibration and ID information with them for quick exchange in the field during Hazmat response. Specific sensors

include electrochemical (EC) for carbon monoxide (CO), hydrogen sulfide (H2S), ammonia (NH3), hydrogen cya-

nide (HCN), hydrogen chloride (HCl), hydrogen fluoride (HF), chlorine (Cl2), chlorine dioxide (ClO2), nitric oxide

(NO), nitrogen dioxide (NO2), sulfur dioxide (SO2), ethylene oxide, methyl mercaptan, and others. Also available

are pellistor for LEL level combustibles, non-dispersive infrared (NDIR) for Vol% level CO2 or hydrocarbons, and

photo-ionization detector (PID) for ppm level VOCs. Use of combination CO/H2S or SO2/H2S sensors allow up to 5

gas measurements in a single instrument. The MP400P has rugged construction and easy-to-learn 2-button oper-

ation. The unique Man-Down alarm feature notifies nearby workers if the user becomes incapacitated.

Features, Functions and Benefits

• Wide selection of “plug-and-play” Smart Sensors

• 16-Hour rechargeable Li-ion battery

• Pump-off switch saves battery for longer operation time

• Automatic flow fault on pump

• 360-Degree LED alarm bar

• Man-Down alarm

• USB Micro charger & communications cable

• Flip screen

• 6 Months continuous datalogging

• Durable double shot outer case

Confined Space Entry Monitors

Ver 1.6

1-866-mPower7

MP400P

Santa Clara • Houston • Shanghai • www.mpowerinc.com • HQ Office: (408) 320-1266 • 1-866-mPower7

Specifications

Detector Specifications

Size 5.74 x 3.31 x 1.65 in (140 x 84 x 42 mm)

Weight 15.5 oz (435 g)

Sensors Over 30 interchangeable and field-replaceable sen-sors including PID for VOCs, EC for Toxic and O2, Pellistor for LEL, and NDIR for LEL, Vol% and CO2

Response time (t90)

• 15 seconds (LEL/CO/H2S/O2) • Others vary – see sensor specification sheet

Battery Rechargeable Li-ion pack: 16 hours in diffusion mode, 12 hours with pump

Direct Readout

• Real-time reading of gas concentration • PID measurement gas and correction factor, • Visual compliance indicator • Battery status • Datalogging on/off • STEL, TWA, peak and minimum values • Man-Down alarm on/off

Display 128 x 128 graphical LCD, 1.77 x 1.73 in (45 x 44 mm), with LED backlight for enhanced readability. Automatic screen “flip” feature

Keypad 2 Operation keys

Sampling Bulit-in pump or diffusion

Calibration Manual calibration. CaliCase option allows auto-matic bump test and calibration on up to 4 units simultaneously

Alarms • Audible (95 dB @ 30 cm) • Visual (flashing bright red LEDs) • Vibration • On-screen indication of alarm conditions • Man-Down alarm with pre-alarm

Datalogging Continuous datalogging (6 months for 4 sensors at 1-minute intervals, 24 hours/day and 7 days/week)

Charging and Communica-tion

Charging, data download, instrument setup and firmware upgrades on PC or laptop via PC comm, cradle, travel charger, or CaliCase.

Temperature -4° to 122°F (-20° to 50°C)

Humidity 0% to 95% Relative humidity (non-condensing)

IP Rating IP-65 (pump versions); IP-67 (diffusion versions)

Safety Certifications

Class I, Div 1, Group ABCD T4, -20°C ≤ Tamb ≤ +50°C

IECEx Ex ia IIC T4 Ga II 1G Ex ia IIC T4 Ga (pending) European Conformity (pending)

EMC/RFI EMC directive: 2014/30/EU

Warranty • 2 Years on instruments • 2 Years on sensors for pellister LEL, and O2, CO, H2S, SO2, HCN, NO, NO2, and PH3 EC sensors

• 1 Year on other sensors

Sensor Options

Sensor Range Resolution

PID 0-2000 ppm 0.1 ppm

Oxygen (O2) 0-30%Vol 0.1%Vol

Combustibles (LEL%) 0-100%LEL 1%LEL

Hydrocarbons (Vol%) 0-100%Vol 0.1%Vol

CO2 (Carbon Dioxide) 0-50000 ppm 100 ppm

CO (Carbon Monoxide) 0-1000 ppm 1 ppm

H2S (Hydrogen Sulfide)

0-100 ppm 0.1 ppm

0-1000 ppm 1 ppm

CO + H2S CO 0-500 ppm 1 ppm

H2S 0-200 ppm 0.1 ppm

SO2 + H2S SO2 0-20 ppm 0.1 ppm

H2S 0-100 ppm 0.1 ppm

NH3 (Ammonia) 0-100 ppm 1 ppm

Cl2 (Chlorine) 0-50 ppm 0.1 ppm

ClO2 ( Chlorine Dioxide) 0-1 ppm 0.01 ppm

H2 (Hydrogen) 0-1000 ppm 10 ppm

HCl (Hydrogen Chloride) 0-15 ppm 0.1 ppm

HF (Hydrogen Fluoride) 0-10 ppm 0.1 ppm

HCN (Hydrogen Cyanide) 0-100 ppm 1 ppm

NO (Nitric Oxide) 0-250 ppm 1 ppm

NO2 (Nitrogen Dioxide) 0-20 ppm 0.1 ppm

PH3 (Phosphine) 0-20 ppm 0.01 ppm

SO2 (Sulfur Dioxide) 0-20 ppm 0.1 ppm

C2H4O (Acetaldehyde) 0-20 ppm 0.1 ppm

ETO (Ethylene Oxide) 0-100 ppm 0.1 ppm

CH3SH (Methyl Mercaptan) 0-10 ppm 0.1 ppm

* Due to ongoing research and product improvement, specifications are subject to change without notice *

Distributed By:

WARNINGS

Read Before Operating The full POLI 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.

Caution

⚫ Change battery only in area known to be non-

hazardous.

⚫ Use only mPower’s battery PN: 12.01.09.0001.

Attention

⚫ Changez la batterie uniquement dans une zone

connue pour être non dangereuse.

⚫ Utiliser uniquement la batterie mPower PN:

PN: 12.01.09.0001.

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

number12.01.09.0001. • 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 and 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 ESD film on the display is not damaged or peeling.

Avertissement • N'utilisez jamais le moniteur lorsque le couvercle est enlevé. • Retirer le couvercle du moniteur et la batterie uniquement

dans une zone connue comme non dangereuse. • Utilisez uniquement le numéro de pièce de la batterie au

lithium mPower12.01.09.0001. • Cet instrument n'a pas été testé dans une atmosphère

explosive gaz / air ayant une concentration en oxygène supérieure à 21%.

• La substitution de composants compromettra l'aptitude à la sécurité intrinsèque et annulera la garantie.

• Il est recommandé de tester avec un gaz de concentration connu pour confirmer que l'instrument fonctionne correctement avant de l'utiliser.

• Avant de l’utiliser, assurez-vous que le film ESD sur l'écran n'est pas endommagé ou épluché.

User Interface Two key operation, four sensor sockets, one big

LCD, eight alarm LEDs, one buzzer, two vibration

alarms.

mPower Electronics Inc. 3046 Scott Blvd. Santa Clara, CA 95054

Phone: +1(408)320-1266 Fax: +1(669)342-7077 info@mpowerinc.com www.mpowerinc.com

POLI MP400 Series

Quick Start Guide

Sensors

Gas Inlet LED Alarm

Buzzer

Left Key (Confirm /Number Increase)

LCD

Charge/Comm Port

LED Alarm

Right Key (Power/ Cursor Moving)

1

2 3

PN: M004-4007-000 v1.2

Turning the Unit On Press and hold the Down Key for 3 seconds, until

the buzzer beeps and the red LED flashes. After a

warm up and self-test sequence, the unit enters

normal reading mode, showing real time gas

concentrations.

Turning the Unit Off In normal reading mode, press and hold the Down

Key for a 5-second count down, until “Unit Off” is

displayed.

Charging Always fully charge the battery before use. Plug

the charger into the bottom of the POLI. The battery

icon on the LCD shows the charge status. During

active charging, the icon cycles from empty to full

and a yellow alarm light remains on, which switches

to green when completely charged.

Charging/Comm Cable The USB Charging/Communications cable allows

charging the unit on a personal computer. A locally-

purchased cable can work as well for charging, but

mPower’s cable must be used for proper data transfer

when communicating with mPower Suite.

Normal Mode After warm-up is complete, the unit enters normal

reading mode and displays the instantaneous gas

concentrations continuously.

Other values like STEL, TWA, Peak , Min, Date,

LEL gas, etc. can be checked by pressing the Right

Key to cycle through these screens one by one. The

Left “Test” key check alarm function.

Two text and symbol boxes at the LCD bottom are

mapped to the Left [+/OK] and Right [ /↓] keys. The

text or symbol in the boxes will vary with the

menu.

Configuration Mode In Config Mode, the user can perform sensor

calibrations, change the alarm limits and set up other

parameters. To navigate, use the Left and Right key

functions as indicated on the LCD bottom. In general,

the Right [ /↓] moves the cursor to highlight a

function and Left [+/OK] enters or exits the function

or changes numerical values.

Enter Config Mode Hold down the Left and Right Keys together for 3

sec. The config mode is password

protected with a default password of

“0000”. Input all four digits and

press Left (OK) to enter config mode.

Config Mode Menu

Calibration: Calibration, Bump, Set span value

Measure: Enable/Disable sensors, Gas units

Alarm: Set alarm limits, Man-Down info, etc.

Datalog: Clear data, Set interval, Select sensors

Monitor Set-up: LCD, Pump speed, Language

Wireless: Wireless on/off or Register

Exit: Exit from Config Mode

Exit Config Mode Press the Right Key repeatedly until the “Exit”

icon is highlighted, then press Left to exit.

Scrolling Numerical Entries While modifying numerical values such span

values or alarm limits, the function of the Left [+/OK]

key can be switched between number increase

and decrease by pressing both keys

simultaneously.

Change Alarm Limits

All alarm limits can be customized, including High,

Low, STEL and TWA alarms.

• To enter the alarm limit setting:

Config mode → Alarm Menu → Alarm Type.

• To change a value:

Press Right to highlight the desired digit and press

Left to change the value. Holding down the Left

Key for continuous number scrolling.

• To save and exit:

Press the Right Key until “Done “ appears in the

bottom-left corner, then press Left to exit. If

changes have been made, there will be a message

to confirm saving the new values. Press “Yes” to

save, “No” to discard.

4 5

Man Down alarm on Notice information

Datalog status Battery status

Concentration Reading

Wireless status

Pump status

Sensor type

Unit of measure

Indications of Left and Right key functions

Valid on Cal & Bump Test

6 7

Bump Test A bump test is a quick 30-second check if the

sensors and alarms functioning, without doing a

precise calibration.

• To enter bump test:

Config mode → Calibration Menu → Bump Test

• Select sensors to be bump tested:

All sensors are selected by default. Press Right to

start selecting, and Left to toggle a selection on or

off. Move the highlight with the Right key, then

press the check box when all selections are done.

• Apply test gas to the inlet.

• Press Left (Start) to initiate

the 30-second bump test

timer. When complete, a Pass

or Fail result is displayed

Fresh Air Calibration Zero calibration sets the baseline for the sensor and

is done in normal fresh air or other clean air source.

• Enter fresh air calibration:

Config Mode → Calibration → Fresh Air Calib.

• Select sensors to be zeroed in the same manner as

described for Bump testing.

• Start fresh air zero:

Press the Left key and a count-down timer starts.

When the count-down is finished, “Pass” or “Fail”

will be displayed. To abort the zero calibration use

the Left key during count down.

• The Oxygen sensor is set to 20.9% during Fresh

Air calibration and can be zeroed using the

Nitrogen Calib menu.

Span Calibration Span calibration uses known concentrations of gas

to define the response of the sensor(s) to the gas(es).

Multiple sensors can be calibrated simultaneously

using a gas mixture. Use a fixed-flow regulator

providing about 0.5 LPM. For pumped units a

demand-flow regulator can also be used.

• To Set Span Value:

Config Mode → Calibration Menu → Span Value

• Press Right to highlight a sensor, Left to select

and Left [+/OK] again to increase or decrease that

sensor’s span concentration. Repeat with other

sensors as needed.

• To perform Span Calibration:

Config Mode → Calibration Menu → Span Calib

→ Select Sensor as for Bump Test → Span Calib

• Apply gas to gas inlet, on

the top of the unit.

• Press Start and wait for the

count-down timer and

calibration result.

• Switch off the gas and exit Calib Mode.

Maintenance and Service For pumped units, replace the inlet filter a regular

basis, especially when used in high-dust environments.

For battery or sensor replacement and other

maintenance or services, please contact mPower’s

service department or refer to the User Manual.

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