What to do if my DALEMANS Gas Detector shows a non-zero reading when there's no gas?
If your DALEMANS Gas Detector displays a non-zero reading when no gas is present, it could be due to wear of the measuring sensor or a calibration fault. You should calibrate the detector according to the procedure outlined in the manual.
What to do if my DALEMANS Gas Detector shows a zero reading when gas is present?
If your DALEMANS Gas Detector shows a zero reading when gas is present, there are several potential causes. First, check the detector wiring and the connection of the sensing head, as it could be a wiring fault. Another possibility is that the sintered metal filter is either dirty or blocked, in which case you should clean or replace the filter. Finally, the sintered metal filter could be contaminated, requiring you to replace the filter, replace the measuring sensor, and then calibrate the detector.
What to do if DALEMANS DAT 420 Gas Detectors show zero reading in presence of gas?
If your DALEMANS Gas Detectors display a zero reading even when gas is present, it could be due to several reasons: * A wrong or defective electrical connection. You should check and repair the electrical connections. * The sintered or sensor might be blocked with dust. In this case, clean the sintered or sensor. * The sintered or sensor may be contaminated, requiring you to replace both.
Why DALEMANS DAT 420 give non-zero reading when no gas is present?
A non-zero reading on your DALEMANS Gas Detectors when no gas is present often indicates that the detector requires calibration. Calibrate the detector to resolve this issue.
Lists restrictions and conditions affecting sensor life and detector operation.
Defines zones and areas for explosive gas and dust atmospheres.
Specifies equipment safety levels and gas/dust group classifications.
Relates gas types to maximum equipment surface temperatures.
DALEMANS is not liable for damages from non-observance of instructions or errors.
Guidelines for proper disposal and recycling of electrical and electronic equipment.
Product manufactured under ISO 9001 certified Quality Assurance system.
Details EC-Type Examination Certificate and compliance with ATEX directive standards.
General description of the gas detector and its primary applications.
Details the electrochemical sensor, transmitter, and housing of the sensing head.
Provides physical dimensions of the DAT 420 gas detector in millimeters.
Advice on optimal placement considering gas dispersion, accessibility, and environmental factors.
Procedure for securely mounting the detector using the supplied bracket.
Instructions for compliant and safe electrical wiring, cable specifications, and length limits.
Steps for establishing a 2-wire current loop connection to a DALEMANS control unit.
Guidance on connecting the detector to a Programmable Logic Controller (PLC) including loop resistance.
Requirements and frequency for calibrating the gas detector to maintain sensor sensitivity.
Procedure for replacing the sintered metal filter if contaminated.
Steps for disconnecting and replacing the sensing head unit.
Identifies common problems and their potential causes for the gas detector.
Catalog of available spare parts, accessories, and their part numbers.
Comprehensive list of model, performance, environmental, and certification specifications.
General| Brand | DALEMANS |
|---|---|
| Model | DAT 420 |
| Category | Gas Detectors |
| Language | English |
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