Introduction
In the daily production of petrochemical, iron and steel and chemical engineering industries, workers often encounter various flammable and toxic gases, and are prone to accidents without proper safety protection.
As a personal safety protection instrument, explosion-proof portable methane gas detector for personal safety plays an important role in industrial production safety.
Specification
Model | NM-4 | |||
Gas types | EX | H2S | CO | O2 |
Measuring range | (0~100)%LEL | (0~100)PPM | (0~1000)PPM | (0~30)%VOL |
Measuring accuracy | ±3%FS | ±3%FS | ±3%FS | ±3%FS |
Resolution | 1%LEL | 1PPM | 1PPM | 0.1%VOL |
Low alarm | 20%LEL | 10PPM | 200PPM | 19.5%VOL |
High alarm | 50%LEL | 20PPM | 500PPM | 23.5%VOL |
Response time | <30s | <30s | <30s | <30s |
Display | real-time data and system status on the LCD screen | |||
Working environment | -20℃~50℃, <95% RH (no condensation) | |||
Working voltage | DC3.7V (lithium battery of 2000mAh) | |||
Charging time | 6h~8h | |||
Standby time | >8 h | |||
Lifespan of the sensor | 2 years | |||
Warranty | 1 year | |||
Size of product and package | ||||
Product | Package | Carton(12pcs) | ||
130*60*45mm /200g | 205*150*80mm/650g | 45*35*25cm /9kg |
Details
Transportation and payment
Our Company
FAQ
1. Q :Are you a trading company or a factory?
A :Factory (We produce, we sell).
2. Q : Is your company accept customization?
A : We do customizing service for customers. OEM/ ODM is welcome. Any logo and any color is up to you.The English copy of manual is also available.
3. Q : What's the MOQ?
A : Regular products only 1 standard carton. but no limit for sample order!
4. Q : How to place an order?
a: Send us an inquiry
b: Confirm your wanted products
c: Confirm the price, freight and other details
d: Complete the payment in Alibaba
e: We start production and arrange the shipment
f: You got your products
g: We get the payment
5. Q : What's the delivery time after an order placed?
A : It depends on whether we are in stock or not. Our standard arrangement time is 3 days if we have stock, otherwise it will be decided by factory production. Generally, it needs 10-45 days of production according to the quantity of your order.
6. Q : What Shipping way Customer can choose?
A : DHL/FEDEX/UPS/EMS all is ok, it is base on Customer's prefer! and we can advise the suitable shipping way base on the customer's order quantity!
7. Q : What's the warranty of the product?
A : We offer 12month warranty. Our policy: Within the warranty period, If there is any quality problem, please send us photos to show the problem.And then we will decide to send you parts or you send the instrument back to us to repair or exchange. Please make sure to contact us first instead of sending it to us directly. You only need to pay double-run freight.