product name

Fixed online test nitrogen detector

Product number

AGP850-N2

Gas detection

Nitrogen (N2) in the air

Detection principle

Principles of Electrochemistry

Measuring range

0-100%VOL

resolution

0.01VOL (0～100%VOL)

Sampling method

①Free diffusion—on-line continuous detection, free diffusion detection method;

②Suction type—external air pump can be equipped with a flow-through adapter for air in and out or a built-in air pump to realize the pump-suction detection method (air pump is optional)

installation method

Wall-mounted type; pipe type (sub-holding type, intubation type, pipe type external thread: M45X1.5mm, optional pipe adapter screw joint, can be welded);

Indication error

≤± 3% FS (higher accuracy requirements based on sensor performance)

repeatability

≤± 1%

zero drift

≤± 1% ( FS/ year)

Response time

≤ 20 seconds ( T90 ), (higher requirements according to sensor performance)

Recovery Time

≤30 seconds (higher requirements based on sensor performance)

Power supply

12～30VDC

Power

≤2.5W（DC24V）

Environmental pressure

86kPa～106kPa

ambient temperature

-20°C～+55°C (typical value) -40°C～+70°C (limit value)

(Higher temperature and humidity detection environment can choose our pre-pretreatment gas monitoring system)

ambient humidity

10% ~ 95%RH (no condensation)

The main material

①Shell: ADC12 aluminum alloy, Teflon paint, wear-resistant and corrosion-resistant ( 316 stainless steel shell is optional for complex and harsh environments)

②Air chamber: High-strength wear-resistant and corrosion-resistant aluminum profile is used, which is durable ( 316 stainless steel air chamber can be selected for complex and harsh environments), and the outer thread of the air chamber is M45*1.5 ;

output signal

① Three-wire 4-20mA current signal output, which can be connected to various alarm controllers, PLC, DCS and other control systems;

②RS-485 digital signal output, connect to RS232 transfer card to view the stored data on the computer;

③2 sets of relay high and low section alarm switch output (1 set standard , 1 set optional ) : passive contact, capacity 30V 1A , 125VAC 0.5A ;

Signal transmission

Way

① Three-core (four-core) shielded cable transmission: the longest transmission distance is 1000 meters to 2000 meters (single core 1 square shielded cable);

②Network port TCP/IP transmission: support TCP/IP protocol, can be transmitted within 90 meters by network cable, long-distance real-time transmission through networking (optional);

③ Optical fiber transmission: the longest transmission distance is 20 kilometers to 40 kilometers (single-mode multi-core optical cable transmission, must be equipped with optical fiber MODEM), and can be networked (optional);

④Short-distance RTU433 wireless transmission: the transmission distance is 0 to 2 kilometers, depending on the transmission power and the site environment (optional);

⑤GPRS wireless transmission: no distance limit, built-in module, through mobile, China Unicom or telecom signal transmission, with SMS reminder notification function (optional);

Alarm method

Sound and light alarm, optional sound and light alarm, alarm sound: < 90 decibels

Alarm point setting

A1 alarm value, A2 alarm value;

display screen

LCD liquid crystal display

button mode

Remote control + 3 key operation

direct reading

Measurements

calibration

Full software target point calibration function, calibration calibration value can be set, one-key zero adjustment

Explosion-proof electrical

Connection thread

① NPT3/4 to internal thread (optional 1/2NPT , G3/4 , G1/2 to internal thread)

② Explosion-proof cable stuffing box (optional, explosion-proof certification);

Explosion-proof mark

Ex d II CT6 Gb  

degree of protection

IP6 5

size

210mm high x 175mm wide x 85mm    thick

weight

About 1.8Kg (aluminum alloy shell)

Executive standard

GB15322.1-2003 , GB3836.1-2010 , GB3836.2-2010 , GB3836.4-2010

quality assurance

One year warranty period, free maintenance during the warranty period.