三．Working Environment; 四．Keyboard Introduction - East Tester HART 475 User Manual

instrument, configure the set parameters of HART instrument, read the test value
and set value of the instrument, and diagnose and maintain the instrument.This
manual operator supports the first main device of HART protocol, as well as the
point-to-point and multi-point communication mode of HART protocol.
Working Environment
三．
 Power supply: 3.7V 3100mAh lithium battery.
 Operating temperature range: 0°C～+50°C
Storage temperature range: -20°C～+55°C
Note: Exploding the device in the sun will significantly shorten the life of
the LCD panel and accelerate the aging of the button panel.
四．Keyboard Introduction
There are 21 keys in this HART Communicator. The table below lists the functions
of each key.
Button name
"0~9""."key
Left, right, up, down keys
"-""<"">"
"Back"
灯
"Delete"
"Enter"
Features
Enter numbers and corresponding
power supply
Cancel current operation
Screen brightness adjustment
Delete the input
Select and combine key parameters
Select and combine key parameters
Enter
4