Name: AirLink 6940NXP Wireless Multi-Gas Detector
Brand: RKI Instruments

Overview

The RKI AirLink 6940NXP series AC powered ambient air multi-gas detector simultaneously uses up to four sensor elements to detect an array of gases. The Assembly reports once a minute, however the reporting rate will increase to once every five seconds if the target gases exceed a preset background level. Operates from an AC power supply with an internal backup
battery pack. Magnetic switches allow for non-intrusive calibration while in the field as well as full system settings and diagnostics.

The AirLink 6940NXP

NXP represents the latest leading edge wireless technology in fixed gas detection today.

Related Services

Fixed Systems Turnkey Solutions

Design, Consultations, and Engineering
Installation
Start-up
Training
System Maintenance

Application

Petrochemical plants
Refineries
Water & wastewater treatment plants
Pulp & paper mills
Manufacturing facilities
Chemical plants

Sensor Options

Gas Type	Range	T90	Hazard Classification
AsH3	0 – 1 ppm	< 30 sec.	Class 1, Div 2
CH2O	0 – 10 ppm	< 30 sec.	Class 1, Div 2
CH3SH	0 – 10 ppm	< 100 sec.	Class 1, Div 2
CL2	0 – 10 ppm	< 60 sec.	Class 1, Div 2
CLO2	0 – 1 ppm	< 120 sec.	Class 1, Div 2
CO	0 – 1000 ppm	< 30 sec.	Class 1, Div 1
CO2	0 – 1.5% Vol.	< 30 sec.	Class 1, Div 1
ETO	0 – 10 ppm	< 80 sec.	Class 1, Div 2
F2	0 – 1 ppm	< 80 sec.	Class 1, Div 2
H2	0 – 4% Vol.	< 60 sec.	Class 1, Div 1
H2S	0 – 100 ppm	< 30 sec.	Class 1, Div 1
H2S	0 – 2000 ppm	< 25 sec.	Class 1, Div 1
HBr	0 – 30 ppm	< 40 sec.	Class 1, Div 2
HCL	0 – 30 ppm	< 300 sec.	Class 1, Div 2
HCN	0 – 50 ppm	< 70 sec.	Class 1, Div 2
HF	0 – 10 ppm	< 90 sec.	Class 1, Div 2
LEL-IR	0 – 100% LEL (0 – 5% Vol.)	< 30 sec.	Class 1, Div 1
LEL HC-IR	0 – 100% LEL	< 30 sec.	Class 1, Div 1
NH3	0 – 100 ppm	< 90 sec.	Class 1, Div 2
NH3	0 – 300 ppm	< 120 sec.	Class 1, Div 2
NH3	0 – 1000 ppm	< 120 sec.	Class 1, Div 2
NO	0 – 250 ppm	< 40 sec.	Class 1, Div 2
NO2	0 – 20 ppm	< 25 sec.	Class 1, Div 2
O2	0 – 25% Vol.	< 15 sec.	Class 1, Div 1
O3	0 – 5 ppm	< 60 sec.	Class 1, Div 2
PH3	0 – 5 ppm	< 30 sec.	Class 1, Div 2
SO2	0 – 20 ppm	< 35 sec.	Class 1, Div 1
PID VOC 10.6 eV Low Range	0 – 10.00 / 20.00 / 50.00 ppm	< 3 sec.	Class 1, Div 1
PID VOC 10.6 eV High Range	0 – 100 / 200 / 500 / 1000 / 2000 ppm	< 3 sec.	Class 1, Div 1
PID – VOC 10.0 eV	0 – 10.00 / 20.00 / 50.00 / 100 ppm	< 3 sec.	Class 1, Div 1
PID – VOC 11.7 eV	0 – 100 ppm	< 3 sec.	Class 1, Div 1

Specifications

Sensor Type	Electrochemical, PID and / or low-power infrared sensor
Power Type	AC power supply with integrated 3.6VDC/76 Ah backup battery pack
RF Connection	External N-female radio frequency (RF) connector, flexible antenna included
Display Screen	160×104 Resolution graphical LCD screen Transflective (sunlight readable) with LED backlight
Interface	4 Push-buttons (MENU, ADD, SUB, and BACK) 4 Magnetic non-intrusive switches for calibration (MENU, ADD, SUB, and BACK)
Customizable Settings	Adjustable background gas setting (1% to 10% of full scale) settable per sensor element
Temperature Range	-40°C to +60°C
Wireless Radio Options	900 MHz (200 mW) radio or 2.4 GHz (125 mW) radio
Networks	52 Networks (900 MHz radio) or 78 networks (II 2.4 GHz radio) 255 addresses per network
Product Dimensions	5 in. D x 10.5 in. W x 20 in. H (Max. dimensions with attachments)
Enclosure Material	NEMA Class I, 4, 4X and 6 fiberglass enclosure with clear lid – IP 66, UL 508 and UL 746C (f1) rated
Hardware Warranty	Limited one year
Sensor Element Warranty	Varies with sensor element and is subject to factory verification
Compatible Controllers	AirLink 7010, AirLink 7032, and AirLink 7543
Optional Remote Sensor Kit	Electrochemical sensor — up to 250 feet of cable Low power infrared sensor — up to 40 feet of cable Photo Ionization Detector (PID) — up to 35 feet of cable