mPower Electronics MP820 Combustible Gas Transmitter Instruction Manual

: June 14, 2024
: mPower Electronics

Table of Contents

mPower Electronics MP820 Combustible Gas Transmitter
Product Information
Product Usage Instructions
Introduction
Features, Functions and Benefits
Specifications
Standard
Sensor Options
Contact Information
Read User Manual Online (PDF format)
Download This Manual (PDF format)

mPower Electronics MP820 Combustible Gas Transmitter

Product Information

Specifications:

Size: 8.9 x 5.9 x 4.9 in (226 x 150 x 125 mm)
Weight: 5.7 lbs. (2.6 kg)
Sensors: Catalytic combustion (LEL) sensor modules
Calibration: Two-point calibration (zero & span)
Response Time: 15s t90
Temperature: Operating: TBD°F to TBD°F (TBD°C to TBD°C)
Humidity: 10% to 95% Relative Humidity (non-condensing)
Pressure: 86 to 106 kPa (0.85 to 1.05 atm)
Power: TBD

Product Usage Instructions

Installation:
Follow these steps to install the MP820 Combustible Gas Transmitter:

Choose a suitable location for installation.
Mount the transmitter securely using appropriate tools.
Connect the necessary cables according to the provided manual.

Calibration:
To calibrate the device:

Access the calibration mode on the transmitter.
Perform a zero calibration by adjusting the settings accordingly.
Perform a span calibration using the provided calibration gas.

Operation:
To operate the MP820 Transmitter:

Power on the device using the designated button.
Monitor the readings on the display screen.
Take necessary actions based on the gas levels detected.

FAQ (Frequently Asked Questions)

Q: How often should calibration be performed?
A: Calibration should be performed at least once every six months for accurate readings.
Q: Can the transmitter be used outdoors?
A: The transmitter is designed for indoor use only and should not be exposed to harsh outdoor conditions.

Introduction

The VOXI LEL MP820 is a point-type combustible gas transmitter designed modularly with smart sensor technology and an integral flameproof enclosure for fixed applications. The versatile platform offers catalytic combustible- gas sensors with auto-zeroing and offline calibration. Three-wire 4-20 mA analog and RS485 digital signal outputs are standard, while wireless output is optional. Various applications include oil & gas, petrochemical, chemical, metallurgical, pharmaceutical, semiconductor, environmental monitoring, and other industry facilities.

Features, Functions and Benefits

Supporting catalytic combustion (LEL) sensor modules with sensor identification and manufacturing data
Sensor diagnosis, temperature compensation, and auto-zeroing
LCD with backlight color varying according to alarm status
Calibration due date
3 wires for 4-20 mA and RS485 ModBus output
Infrared remote programmer for settings, calibrations, and adjustments
Error codes for easy troubleshooting
Recoverable factory settings
IP67 rating
IECEx certification
Optional ISM 915MHz modem for wireless connectivity at no subscription fee (check availability)

Specifications

Detector Specifications

Size	8.9 x 5.9 x 4.9 in (226 x 150 x 125 mm)
Weight	5.7 lbs. (2.6 kg)
Sensors	Catalytic combustion (LEL) sensor modules
Calibration	Two-point calibration (zero & span)
Response Time	15s t90
Temperature	-40° to +158°F (-40° to +70°C)
Humidity	10% to 95% Relative Humidity (non-condensing)
Pressure	86 to 106 kPa (0.85 to 1.05 atm)
Power	<5W; 10-30 VDC supply
Sampling	Diffusion
Display	4-digit segmented LCD
Configuration	Via remote infrared programmer
Outputs	Analog: 4-20 mA (3 wires) Digital: RS-485,

ModBus 3 Relays

Wireless ISM 915MHz (optional) 1-mile line of sight

Alarms| LCD & LED flashing, relays for external alarm devices
Housing| Explosion-proof aluminum alloy
Housing Entries| 4 Conduit entries ¾” NPT 1 Port M28x1 fitting
Installation| Pipe bolt or wall mount
IP Rating| IP-67
EMI/RFI| Compliant with EMC Directive 2014/30/EU
Safety Certifications| IECEx Ex db IIC T6 Gb (non-Wireless)