6 • Chapter 1: Introduction
AirLink 9850 Gas Monitor Operator’s Manual
Specifications
Table 1 lists specifications for the AirLink 9850.
Table 1: AirLink 9850 Specifications
Description
Specification
Input Power
110/240V ~ 50 - 60 Hz
or
12 - 35 V
(Class 2)
Current Draw
• 800 mA max at 24 VDC
• 3.125 A max at 110/240 VAC
Operating Temperature
-4°F to 140°F (-20°C to 60°C)
Input Signal
Up to 255 AirLink sensor assemblies
Output
• RS-485 Modbus
• RS-232 RTU Modbus
• Up to 32 4-20 mA outputs
• Virtual COM power over USB
• Internet interface through Ethernet connection
Construction (housing)
Fiberglass with clear window (NEMA 4)
Dimensions
10 in. H x 8 in. W x 6 in. D
(25.4 cm H x 20.3 cm W x 15.2 cm D)
Weight
9 lbs.
Mounting
4 mounting feet (6” W x 12.25” T); 1/4” diameter max
mounting bolt/screw size
Environmental Ratings
• Pollution degree 2
• Installation category II
• Altitude up to 2,000 meters
User Controls
Program buttons: MENU, ADD, SUB, RESET/ESC
Display
Graphical LCD (128x64), transflective, sunlight
readable, LED backlight
Fuses
• 9A, 30 VDC
• PTC (automatic reset), not user-replaceable
Radio Options
• 2.4 GHz, ISM, 125 mW
OR
• 900 MHz, 200 mW
Standard Accessory
Operator’s manual (this document)