AirLink 7543 Gas Monitor Operator’s Manual
Chapter 1: Introduction • 7
Specifications
Table 1 lists specifications for the AirLink 7543.
Table 1: AirLink 7543 Specifications
Description
Specification
Input Power
110/240 VAC
or
12 - 35 VDC
Current Draw
275 mA max
Operating Temperature
-40°F to 158°F (-40°C to 70°C)
Input Signal
• Up to 6 WireFree sensor assemblies
Output
• RS-485 Modbus
OR
• WirelessHART
Construction (housing)
Fiberglass with clear window (NEMA 4)
Dimensions
20.8 in. H x 10.1 in. W x 4.6 in. D
(52.8 cm H x 25.7 cm W x 11.7 cm D)
Weight
12.8 lbs.
Mounting
4 mounting feet (6” W x 10.2” T); 1/4” diameter max
mounting bolt/screw size
User Controls
Program buttons: MENU, ADD, SUB
Display
Graphical LCD (128x64), transflective, sunlight
readable, LED backlight
Relays
• 3 relays with 4A fuses
• SPDT, Form C (common, normally open, and
normally closed contacts)
Radio Options
• 2.4 GHz, ISM, 125 mW
OR
• 900 MHz, 200 mW
Standard Accessory
• Operator’s manual (this document)
• Magnetic wand
Optional Accessories
• Strobe
• Horn
