14
7. Operation
7.1 Names and functions of GM-1000
No Name
Function
No
Name
Function
1 NAME
PLATE Write TAG No.
10
4-20mA ZERO VR
Transmitter type
(4-20 mA) input
2
BAR GRAPH
Display a current value
11
DETECTOR
SPAN VR
Detector type
(3/4 wire sensor) input
3
TEST KEY
It act when you push a
key for 3 sec.
12
DETECTOR
ZERO VR
Detector type
(3/4 wire sensor) input
4
POWER LED
It shows POWER ON
13
FLAT RIBBON
CABLE
Connect between back
T/B and main board
5 FAIL
LED
It shows input signal
(sensor/mA) trouble
14
MICRO
PROCESSOR
Act by program
6
AL2 LED
HIGH-HIGH ALARM
15
FUSE HOLDER
Rated FUSE is 1A,
250V
7
AL1 LED
HIGH ALARM
16
INPUT SELECTOR
JUMPER
Select jumper
depend on input
8
LOCK SCREW
Fix of instrument
17
INPUT SELECTOR
PIN
PIN SHORT : 4-20 mA
pin open : DETECTOR
9
INPUT: 4-20mA
SPAN VR
Transmitter type
4-20 mA input
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⑤
⑥
⑦
⑧
⑨
⑩
⑪ ⑫
⑬
⑭
⑮
⑯
⑰
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