MSA 9010 SIL, Руководство по эксплуатации

Страница: 65 / 76

64
Appendix
GB
Model 9010/9020 SIL
12.5 4-20 mA Transmitter Connections
Control Units 9010 SIL and 9020 SIL can accept, respectively, one or two input signals originating
from transmitters. These transmitters, with a 4-20 mA circuit will have to have the right CE (EU)
type certificate and will have to conform to Section 1.5 of Attachment II of Directive 2014/34/EU.
Control unit channels A and B configured for an input signal of 4-20 mA
Measurement range 0-100 % LEL
Fig. 19 Response curve for mA input (Equal for both Channel A and Channel B)
Input4/20 mA Theoretical reading Display reading 9010/9020 SIL Module
Ch A Ch B
2 -12,5 -d1 -d1
4 0 0 0
6 12,5 12 12
8 25 25 25
10 37,5 37 37
12 50 50 50
14 62,5 62 62
16 75 75 75
18 87,5 87 87
20 100 100 100
21 106,3 EEEE EEEE
22 112,5 EEEE EEEE
Input signal
(mA)
C / W/ A Horn Failure
2 in normal state in normal state activated
4-20 depends on alarm setting activated with a new alarm activated with a new failure
21 activated activated activated
22 activated activated activated