POLi MP400P – Confined Space Entry Monitors

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

General Specifications

Size5.74 x 3.31 x 1.65 in (140 x 84 x 42 mm)
Weight13.5 oz (384 g)
Sensors• Electrochemical for O2, CO and H2S • Pellistor for LEL
BatteryRechargeable 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
Display128 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
Keypad2 Operation keys
CalibrationManual calibration. CaliCase option allows automatic bump test and calibration on up to 4 units simultaneously
Alarms• Audible (90 dB @ 30 cm) • Visual (flashing bright red LEDs) • Vibration • On-screen indication of alarm conditions • Man-Down alarm
DataloggingContinuous datalogging (6 months for 4 sensors at 1 minute intervals, 24 hours/day and 7 days/week)
Charging and CommunicationCharging, 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)
Humidity0% to 95% Relative humidity (non-condensing)
IP RatingIP-67
Safety CertificationsClass I, Div 1, Group ABCD (pending) T4, -20°C ≤ Tamb ≤ +50°C Ex ia IIC T4 Ga (pending) II 1G Ex ia IIC T4 Ga (pending) European Conformity (pending) UL Listed
EMC/RFIEMC directive: 2004/108/EC
Warranty2 Years including sensors
VersionSesor/RangePart Number
4-GasLEL 0.1 - 100% O2 0.1 - 30% H2S 0.1-100 ppm CO 1 - 1000 ppmM004-0001-000
3-GasLEL 0.1 - 100% O2 0.1 - 30% H2S 0.1-100 ppmM004-0002-000
2-GasLEL 0.1 - 100% O2 0.1 - 30%M004-0005-000
1-GasLEL 0.1 - 100%M004-0009-000

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