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Appendix l – Det-Tronics UD10 DCU Emulator FlexVu Universal Display Unit User Manual

Page 58

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4.2

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AppenDix l

UD10-DCU with mODEL CgS COmbUSTIbLE gaS SENSOR

WirinG

importAnt notes

noTe

The UD10-DCU with CGS Interface option and
CGS sensor is certified as a “Gas Detector”
and performance approved to standards
FM6310/6320, ATeX 60079-29-1, and IeC
60079-29-1.

noTe

only Constant Current type CGS sensors may be
used with the UD10.

CautIon

The sintered metal flame arrestor is an integral
part of the combustible gas sensor. Do noT
operate the gas detector if the flame arrestor is
damaged or missing, since the exposed element
is a potential ignition source.

CautIon

Silicone based lubricants must never be used on
or near the CGS sensor, since this can result in
irreversible damage to the sensing element.

CautIon

When the UD10-DCU is configured for a
non-latching high alarm, the eQP Controller must
always latch and require a deliberate manual
action to clear a high gas alarm.

4000

3500

3000

2500

2000

1500

1000

500

0

18

19

20

21

22

23

24

25

26

27

28

29

30

Power Supply Voltage

Dist

ance in f

t.

UD10-DCU with PIRECL/OPECL/NTMOS/CGS

12
14
16
18

AWG

Wire Size

Notes: Maximum cable length from power source to UD10 is 2000 feet.

Maximum cable length from UD10 to CGS sensor is 500 feet

(using 16 AWG cable minimum).