5
SHDN LINE (Power Down)
SHDN line input for power down
<0.8 V
Output when shut down
0 V
SHDN line off state (Normal/output ON)
>0.8 V (or open circuit/no connection)
SHDN line drain current
1 mA
Temperature Specifications
Operating Temp
-40 to 85 C
Junction Temp
125 C (Tj=Ta+pd. 130 C/W)
Storage Temp
-65 ro 150 C
Protection
Primary: Current limit
In circuit current limit
Secondary: Fuse
15 A in-line fuse (5 x 20 mm)
Mechanical
Enclosure
Aluminum, Anodized
Weight
1.5 lb (680 g)
Dimensions - Enclosure LxWxD
4-1/4” x 3-1/4” x 1-5/32”
108 x 83 x 29 mm
Dimensions - Overall
5-1/4” x 4-1/16” x 1-5/32”
133 x 103 x 29 mm
2.0 Installation and Operation
2.1 Installation
Provided that your system came with a regulator installed, there is nothing more to do but
skip to the next section on operation. Refer to data logger manual for operating instructions
specific to the logger. For custom, upgrades, or all other kits this section describes the tools,
recommended parts, and assembly.
2.1.1 List of Tools required to install AVRD
• 11/64” drill bit
• Electric drill
• Philips screw driver
• 5/16 Hex nut driver
• Wire cutter
• Wire stripper
• Flat blade screw driver
• Phillips head screwdriver
In addition required are wires for connecting AVRD input terminals to the power source (battery/
solar panel/ AC outlet adapter) and AVRD output terminals to the sensor heater elements.