JIANGSU ANTAI · MINING SAFETY
DJJ100/127W
Wireless Methane Power-off Instrument
An equipment-mounted instrument combining methane measurement, audible and visual alarms, wireless communication and power-off control.
TECHNICAL OVERVIEW
Key specifications
| Measurement range | 0–100% CH₄ |
|---|---|
| Response time | ≤25 s |
| Power supply | AC 127 V / DC 24 V |
| Communication | Wireless |
| Display | LCD |
| Backup power | Automatic battery changeover |
LCD display; infrared remote adjustment; response time ≤25 s; automatic backup power changeover.
Catalogue MA reference: MFE260633. Confirm the current certificate, scope and selected configuration before ordering.
APPLICATION & SELECTION
Wireless methane measurement and power-off control
The DJJ100/127W combines methane measurement, wireless communication, alarms and power-off control in an equipment-mounted instrument. The catalogue describes LCD indication, infrared remote adjustment and automatic changeover to backup battery power.
What to confirm before ordering
Confirm AC 127 V or DC 24 V supply requirements, wireless coverage and the required power-off interface. Wireless performance depends on the installation; discuss the actual environment and obtain the approved system configuration and current documentation.
Request model-specific documentation
Email antaiair@163.com with the model, gases to be monitored, machinery, supply voltage, interfaces and expected quantity. Ask for the current datasheet, applicable certificates and product support information.
Specifications are reproduced from the supplied Chinese catalogue. Installation and maintenance must follow current manufacturer documentation and the requirements of the intended site.