PDC cutters for geology and coal mining have high abrasion resistance and impact resistance through adopting advanced international technology. Meanwhile we have improved the structure of interface combination between polycrystalline diamond layer and tungsten carbide substrate which can improve the distribution of stress and make the interface firm and steady. So coal mining pdc cutter of production are reliable, durable for years while high cost -effective.
Coal Mining,Pdc Cutter For Mining Drilling,Diamond Cutter For Mining Driling,Pdc Cutter Anchor Bit HENAN YALONG DIAMOND TOOLS CO.,LTD , https://www.pdcpcbncutter.com
Wired/ Independent use optional.
Features:
- Detecting natural gas, providing early warning of developing gas leakage when gas density is detected to reach limit.
- High reliability sensor
- Auto-reset after alarm
- MCU processing/SMT adopted; excellent stability
- Auto-check and indicate of Malfunction
- Alarm output N.C./ N.O. optional
- Backup battery.
- Meet GB15322-2003 EN50194 UL1484 standards.
Â
Specification
Â
Power supply:110VAC/220VAC/230VAC ,9V-20VDC
Working temperature: -10°~ 60° : Humidity:<97%RH
Working frequency: 315MHz or 433MHzÂ
Alarm density: Coal gas: 1000~5000ppm(0.1~0.5%), Liquid petroleum gas:1000~5000ppm(0.1~0.5%), natural gas: 1000ppm~5000ppm(0.1~1%)
Responding time: less than 30 seconds, Instauration time: <30s
Insulation: Insulation resistance>50 Ω; Electric strength>1500V AC Â
Alarm volume: >85db Â
Size: 11*7*4cm; ; Packing box: 15*11*5.5cm; Weight: 0.2kg/pcÂ
Related Products:
Â
Gas Leakage Detector: Self-detecting, no wrong report, and reliability. Can be used with the alarm system to send the sign to the control panel if detecting density with time reaches the limit figure required as below and then it alarms and the alarm control panel auto-dials the presetting telephone or mobile phone . It is designed for a wide range of residential where reliable gas leakage detection is required.
Wired/ Independent use optional.
Features:
- Detecting natural gas, providing early warning of developing gas leakage when gas density is detected to reach limit.
- High reliability sensor
- Auto-reset after alarm
- MCU processing/SMT adopted; excellent stability
- Auto-check and indicate of Malfunction
- Alarm output N.C./ N.O. optional
- Backup battery.
- Meet GB15322-2003 EN50194 UL1484 standards.
Â
Specification
Â
Power supply:110VAC/220VAC/230VAC ,9V-20VDC
Working temperature: -10°~ 60° : Humidity:<97%RH
Working frequency: 315MHz or 433MHzÂ
Alarm density: Coal gas: 1000~5000ppm(0.1~0.5%), Liquid petroleum gas:1000~5000ppm(0.1~0.5%), natural gas: 1000ppm~5000ppm(0.1~1%)
Responding time: less than 30 seconds, Instauration time: <30s
Insulation: Insulation resistance>50 Ω; Electric strength>1500V AC Â
Alarm volume: >85db Â
Size: 11*7*4cm; ; Packing box: 15*11*5.5cm; Weight: 0.2kg/pcÂ
Related Products:
Â
12-24VDC Wired Gas Detector for Drive Electromagnetic Valve or Manipulator
Model NO.: ZDD-302G
Infrared Sensor Probe Type: Inclination Sensor
Infrared Sensor Installation: Embedded Wall
Combustible Gas Detector Model: NA-300
Size: 11*7*4cm
Alarm Volume: >85dB
Alarm Density: Coal Gas: 1000~5000ppm(0.1~0.5%), Liquid Petroleum
Working Temperature: -10°~ 60°
Humidity: <97%Rh
Trademark: ZUDSEC
Transport Package: Color Box
Specification: CE, RoHS
Origin: Shenzhen, China
HS Code: 853110
Model NO.: ZDD-302G
Infrared Sensor Probe Type: Inclination Sensor
Infrared Sensor Installation: Embedded Wall
Combustible Gas Detector Model: NA-300
Size: 11*7*4cm
Alarm Volume: >85dB
Alarm Density: Coal Gas: 1000~5000ppm(0.1~0.5%), Liquid Petroleum
Working Temperature: -10°~ 60°
Humidity: <97%Rh
Trademark: ZUDSEC
Transport Package: Color Box
Specification: CE, RoHS
Origin: Shenzhen, China
HS Code: 853110
Gas Leakage Detector: Self-detecting, no wrong report, and reliability. Can be used with the alarm system to send the sign to the control panel if detecting density with time reaches the limit figure required as below and then it alarms and the alarm control panel auto-dials the presetting telephone or mobile phone . It is designed for a wide range of residential where reliable gas leakage detection is required.