IR4000M Multi-Point Gas Monitor0 pages

Combustible Gas

MODEL IR4000
Features

Benefits

• IR4000M can connect to as many as
eight remote IR400 detectors

• Operates as an integrated gas
detection system with voting

• IR4000M onboard data concentrator
reads status for up to 8 devices at once
with one command

• Useful in large, multi-point systems

• IR4000M can calibrate, gas check and
zero multiple IR400 devices based on a
single command

• Provides ease of maintenance and
accessibility

• Explosion-proof enclosure and magnetic
interface

• Allows installation and calibration in
hazardous locations

• Optional 8 Amp relays

Single / Multi-Point Monitors
for use with Model IR400
Point IR Gas Detector

• Expands system functions,
potentially eliminating the need for
additional equipment like a PLC

Description
The IR4000 Monitor is available in two options. The
Model IR4000S is a Single-Point Monitor and the Model
IR4000M is a Multi-Point Monitor. Both feature a threedigit LED display and user interface to our Model IR400
point IR gas detector. The monitor allows local
calibration and displays gas concentration. Both are
housed in an explosion-proof junction box enclosure
that can be installed in hazardous locations adjacent to
the detectors.
Optional relays for both monitors provide output for
Alarm, Warn, and Fault conditions occurring at each
detector. Users can select operating mode, warn, and
alarm setpoints via a magnetically activated switch. The
relays are user-programmable as Latching or NonLatching, normally De-Energized or normally
Energized. Latching relays can be reset via a remote
reset input or via the magnetic switch.
The Model IR4000M Multi-Point Monitor is a display,
relay module, and a data concentrator. It provides
monitoring and control functions for up to eight
connected IR400 gas detectors. The highest current %
LEL among all connected detectors is shown
continuously during normal operation. In addition, the
IR4000M reads seven data items from each of the
IR400ʼs connected to it, at least once per second. An
extensive set of menus are navigated using a magnetic
switch to request the status and configuration data
stored by the IR4000M.

In addition, over 200 IR4000M and IR400 Modbus
registers provide the greatest possible flexibility in
reviewing current status data and settings, and configuring
operating parameters. For example, the IR4000M can
report % LEL data for all eight detectors with one
command, which is useful in large multi-point systems.
Applications
• Chemical Plants
• Compressor Stations
• Drilling and Production Platforms
• Fuel Loading Facilities
• LNG/LPG Processing and Storage Facilities
• Oil Well Logging
• Refineries
• Wastewater Treatment Facilities