Features for Feed Off The Arm Sewing Machine: Double lap-seaming, three or two needles, lap-seamers that climb sixteen plies with ease; Upper puller and differential feed chainstitch with high step, the denim feeding is easier&smoother; This series machine supply various function, annex and parts, convenient for selecting the most suitable way to finish the seaming; Lower quiver& noise when high speed running. Suitable for stitching on the loop of jeans&leisure trousers, which material from medium to heavy,loop width 8-12mm. Feed Off The Arm Sewing Machine Feed Off The Arm Sewing Machine,Industrial Feed Off The Arm Sewing Machine,Small Feed Off The Arm Sewing Machine,Double Needle Feed Off The Arm Sewing Machine DONGGUAN CHUANGHUI SEWING MACHINE CO.,LTD , http://www.ch-sewing.com
Applications:
CD4 portable Multi-gas detector is an intrinsically safe and explosion-proof instrument and is designed to deter the gases. It can simultaneously monitors up to four atmospheric hazards including carbon monoxide (CO), oxygen (O2), combustible gas (%LEL), and hydrogen sulphide(H2S). Compact and lightweight, CD4 portable Multi-gas detector activates audible, visual and vibrating alarms in the event of a low or high alarm condition.
CD4 portable Multi-gas detector is unparalleled in its versatility, capability and overall value. Water-resistant line of portable gas detectors has transformed the market with its matchless array of features.Â
It is used at the underground coal mine and mine safety inspection mainly. Certainly, it is also applied to fire fighting, confined space, chemical industry, oil and all kinds of environment that needed to measure the hazardous and toxic gases
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Technical specification:
Sensor
 Catalytic combustion sensor (combustible gas);Electrochemical sensors (CO,O2,H2S)
Measurement of Gas
combustible gas (CH4), carbon monoxide (CO),oxygen (O2), hydrogen sulfide (H2S)
Range
CH4: 0~4.00%(v/v);                                               combustible gas 0-100%(LEL)
O2:Â 0~30.0%VOL CO:Â 0~1000ppm H2S:Â 0~100ppm
Accuracy
CH4:Â +10%Â Â Â (1%LEL)
O2:Â +0.7%VOL CO:Â +5% H2S:Â +5%
Resolution
CH4:Â 0.1%CH4Â Â Â (1%LEL)
O2:Â 0.1%VOL CO:Â 1ppm H2S:Â 1ppm
AlarmsÂ
Visual,audible(75Â dB)
Typical battery life
≥10 hours
Explosion protection
Exibd I
Protection grade
IP54
External Dimensions/ Weight
105(L)×56(W)×28(H) mm/250g
Accessories:
Battery, Carrying case and Operate guidebook
Â
Name:Portable Multi-Gas Detector
Applications:
CD4 portable Multi-gas detector is an intrinsically safe and explosion-proof instrument and is designed to deter the gases. It can simultaneously monitors up to four atmospheric hazards including carbon monoxide (CO), oxygen (O2), combustible gas (%LEL), and hydrogen sulphide(H2S). Compact and lightweight, CD4 portable Multi-gas detector activates audible, visual and vibrating alarms in the event of a low or high alarm condition.
CD4 portable Multi-gas detector is unparalleled in its versatility, capability and overall value. Water-resistant line of portable gas detectors has transformed the market with its matchless array of features.Â
It is used at the underground coal mine and mine safety inspection mainly. Certainly, it is also applied to fire fighting, confined space, chemical industry, oil and all kinds of environment that needed to measure the hazardous and toxic gases
Â
Technical specification:
Sensor
 Catalytic combustion sensor (combustible gas);Electrochemical sensors (CO,O2,H2S)
Measurement of Gas
combustible gas (CH4), carbon monoxide (CO),oxygen (O2), hydrogen sulfide (H2S)
Range
CH4: 0~4.00%(v/v);                                               combustible gas 0-100%(LEL)
O2:Â 0~30.0%VOL CO:Â 0~1000ppm H2S:Â 0~100ppm
Accuracy
CH4:Â +10%Â Â Â (1%LEL)
O2:Â +0.7%VOL CO:Â +5% H2S:Â +5%
Resolution
CH4:Â 0.1%CH4Â Â Â (1%LEL)
O2:Â 0.1%VOL CO:Â 1ppm H2S:Â 1ppm
AlarmsÂ
Visual,audible(75Â dB)
Typical battery life
≥10 hours
Explosion protection
Exibd I
Protection grade
IP54
External Dimensions/ Weight
105(L)×56(W)×28(H) mm/250g
Accessories:
Battery, Carrying case and Operate guidebook
Â
Portable Multi 4 Gas Detector
Model NO.: CD4
Measurement of Gas: Combustible Gas (CH4), Carbon Monoxide (Co),Oxygen
Alarms: Visual,Audible(75 dB)
Typical Battery Life: ≥10 Hours
Explosion Protection: Exibd I
Protection Grade: IP54
External Dimensions: 105(L)×56(W)×28(H) mm
Weight: 250g
Trademark: TOP SKY
Transport Package: Export Standard
Origin: Beijing
HS Code: 9027100090
Model NO.: CD4
Measurement of Gas: Combustible Gas (CH4), Carbon Monoxide (Co),Oxygen
Alarms: Visual,Audible(75 dB)
Typical Battery Life: ≥10 Hours
Explosion Protection: Exibd I
Protection Grade: IP54
External Dimensions: 105(L)×56(W)×28(H) mm
Weight: 250g
Trademark: TOP SKY
Transport Package: Export Standard
Origin: Beijing
HS Code: 9027100090
Name:Portable Multi-Gas Detector