To Next PageTo Next PageWhat to do if MSA General Monitors IR4000S Monitor shows bF9 – Gas check period exceeded?
If the MSA Monitor displays 'bF9 – Gas check period exceeded', it means the gas check timed out. Purge the detector with clean air or nitrogen to remove any residual gas. Make sure that the area around the detector is clear of gas and that all gas check sources have been shut off. The fault will clear when gas is no longer present.
What to do if MSA General Monitors IR4000S shows no display on power up?
If the MSA Monitor shows no display upon powering up, ensure the wiring is correct, paying special attention to the power wires (+24V and COM). Visually inspect the insulation to confirm it covers the terminal contacts. Gently tug on each wire to confirm a secure connection and sufficient insertion depth.
What to do if MSA General Monitors IR4000S shows F4 – Detector Communication Fault?
If the MSA Monitor displays 'F4 – Detector Communication Fault', it means the IR4000S isn't detecting the mA input from the IR400. Check the wiring between the IR400 and IR4000S. The IR4000S requires the current loop circuit is completed. This means that the input current from the IR400 is connected to TB1 pin 1 and also the circuit is completed from TB2 pin 1 to ground. In most installations, the control room equipment is connected to TB2 pin 1 to complete the circuit but if the IR4000S is used standalone then a load must be connected from TB2 pin 1 to TB1 pin 3. The load can simply be a suitable short piece of wire.
How to fix bF6 – Low Supply Voltage error on MSA Monitor?
The 'bF6 – Low Supply Voltage' error on the MSA Monitor indicates that the IR4000S voltage input is at or below 18 volts. To resolve this, check the system wiring and adjust the power supply if necessary.
How to resolve bF8 – Failure to complete setup on MSA General Monitors IR4000S Monitor?
If the MSA Monitor shows 'bF8 – Failure to complete setup', it means the setup menu timed out. Enter the setup menu and check that all settings are correct. Select 'Fi' to exit setup.
What causes bF5 – Switch Error on MSA General Monitors IR4000S Monitor?
The 'bF5 – Switch Error' on the MSA Monitor indicates that the IR4000S CAL/ARGC or RLY RST input is shorted to Common. Check the system wiring to resolve this issue.
What does F8 – Fail to start zero mean on MSA General Monitors IR4000S?
The 'F8 – Fail to start zero' on the MSA Monitor indicates that the IR4000S does not detect the proper mA input of 1.5 mA from the IR400. Check the wiring between the IR400 and IR4000S, particularly the connection.
What to do if MSA Monitor shows bF7 – Electronics Error?
General| Model | IR4000S |
|---|---|
| Target Gas | Hydrocarbon Gases |
| Detection Range | 0-100% LEL (Lower Explosive Limit) |
| Range | 0-100% LEL |
| Power Supply | 24 VDC nominal (18-32 VDC) |
| Detection Principle | Infrared (IR) |
| Operating Temperature | -40°C to +75°C |
| Operating Humidity | 0 to 95% RH non-condensing |
| Output | 4-20 mA, RS-485 Modbus |
| Certifications | ATEX, IECEx, FM, CSA |
| Ingress Protection | IP66 |
General Monitors' mission to benefit society with safety products.
Manual includes cautions and warnings to prevent injury and equipment damage.
Verify wiring, connections, and mounting before power up. Test system operation.
Display and user interface for the IR400 point IR gas detector.
Highlights system enhancements like local interface, bright display, and explosion-proof design.
Instructions for carefully removing and checking contents against the packing list.
Guidance on positioning the IR4000S for convenient access and optimal performance.
Detailed instructions and safety notices for connecting cables and wiring the system.
Steps to safely power on the system after installation and wiring are complete.
Details the IR4000S monitor's front panel, display, and menu options.
Procedure to verify the IR400 unit's response without tripping relays.
Procedure to eliminate background gas fluctuations by zeroing the IR400 detector.
Procedure to calibrate the IR400 unit for accurate LEL measurements.
Configuration options for the IR4000S, including relay settings and LEL setpoints.
Procedure to reset Warn and Alarm relays, including alternate methods.
Recommendations for establishing a maintenance schedule and logbook.
Reference to detailed instructions for gas checks, zeroing, and calibration.
Instructions for lubricating neoprene rubber gasket (O-ring) and threads.
Procedures for maintaining explosion-proof integrity during cover removal and replacement.
Guidelines for storing the IR4000S Single-Point Monitor in a clean, dry area.
Troubleshooting steps if the display is not on after power is applied.
List of IR4000S fault codes (bF5-bF9) and their corresponding actions.
General Monitors' warranty terms for the Model IR4000S, covering defects for two years.
Technical specifications including agency approvals, mechanical, electrical, and environmental data.
Information on system components, spare parts, accessories, and recommended spare parts.
