DG · Edition 08.13
11
บริษัท เอดีดี เฟอร์เนส จ ำกัด
ADD FURNACE CO.,LTD.
44 ซอยบรมราชชนนี
70 ถนนบรมรำชชนนี แขวงศำลำธรรมสพน์ เขตทวีวัฒนำ กรุงเทพฯ 10170
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: 02-888-3472
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:
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บ
:
08-08-170-170
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: 02-888-3258
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Function
3 .5 Wiring
If the DG..G has switched a voltage > 24 V and a current > 0.1 A at cos
= 1 or > 0.05 A at cos
= 0.6 once, the gold plating on the
contacts will have been burnt through. It can then only be operated
at this power rating or higher power rating.
When using silicone tubes, only use silicone tubes which have been
sufficiently cured. Vapours containing silicone can ad- versely affect
the functioning of electrical contacts. In the case of low switching
capacities, such as 24 V, 8 mA, for example, we recommend using
an RC module (22 Ω, 1 µF) in air con- taining silicone or oil.
DG 18I, DG 120I, DG 450I
Contacts 3 and 2 close when subject to increasing nega- tive
pressure. Contacts 1 and 3 close when subject to falling negative
pressure.
DG 1,5I and DG 12I
The connection of DG 1,5l and DG 12l depends on the positive or
negative adjusting range
.
In the case of high humidity or aggressive gas components (H
2
S),
we recommend using a pressure switch with gold con- tact due to its
higher resistance to corrosion. Closed-circuit current monitoring is
recommended under difficult operating conditions.
All DG models (except DG . .I)
In the negative adjusting range, the template which can be found in
the unit displays the connection diagram.
Contacts 3 and 2 close when subject to increasing pressure. Contacts
1 and 3 close when subject to falling pressure.
In the positive adjusting range, remove the template and wire the
unit as shown in the engraved connection diagram.
COM
1
NC
2
NO
NC
1
NO
2
N
3
COM
µ
C = 1 µF
R = 22
NO
2
NC
1
COM
3
NO
2
NC
1
COM
3
.
DG 12I
DG 1,5I
COM
1
NC
2
NO
NC
1
NO
2
N
3
COM
µ
NO
2
NC
1
COM
3
m
5
.
r
2
