RKI Instruments GD-K71D User Manual
Page 26

PT2E-1052
25
5−4−2.External output action
4∼20mA output version
(1)Signal transmission method : Electric current transmission (not isolated)
(2)Transmission path
: CVVS
(3)Transmission distance
: Below 1Km
(4)Max loop load
: 300Ω at 24VDC
(5)Status signal levels
① Detection mode
: 4∼20mA(depends on gas concentration)
② Gas alarm
: 4∼20mA(depends on gas concentration)
③ Initial clear
: 2.5mA(Fix)
④ Maintenance mode
: 2.5mA(Fix)
⑤ Alarm test
: 4∼20mA(depends on gas concentration)
⑥ Trouble alarm
: 0.5mA(Fix)
⑦ Point skip
: 2.5mA(Fix)
(6)Power interruption
: 0mA
Relations between gas concentration and output are shown below;
CAUTION
4∼20mA output has been adjusted. Even if re-adjustment is required after
installation, do not operate without our permission.
Please contact with our nearest agent or RIKEN KEIKI if it is required.
2.5mA
4mA
20mA
22mA
Full scale
Gas concentration
Output
0
6% of full scale
(Zero suppression level)
Detection mode
Maintenance mode
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