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L1
NO 2
3
COM
2
1
NO
NC
N
NC
L1
3
COM
2
1
NC
NO
N
9.2 Red/green pilot LeD for 24 V DC/AC or for
110 V AC to 230 V AC
24 V DC, I = 16 mA; 24 V AC, I = 8 mA, Order No.:
74921089.
110 V AC to 230 V AC, Order No.: 74923275.
1
2
4
+
3 COM
2
1 NC
NO
–
9.3 Further accessories
Further information about accessories can be found in
Technical Information bulletin DG (identical to DG..T)
– www.docuthek.com.
1
3
NC
COM
NO
N
1
3
2
NC
COM
NO
N
3
1
3
2
NC
COM
NO
N
10 teCHnICAL DAtA
10.1 safety information
Safety information, see Safety manual DG (identical
to DG..T) – www.docuthek.com.
10.2 Ambient conditions
Maximum medium and ambient temperatures:
DG:-40 to +140°F (-40 to +60°C).
DG..S: 5 to +140°F (-15 to +60°C).
Long-term use in the upper ambient temperature
range accelerates the ageing of the elastomer ma-
terials and reduces the service life (please contact
manufacturer).
The set switching point may palpably change in media
and ambient temperatures below -22°F (-30°C).
Transport temperature = ambient temperature.
Storage temperature: -4 to +104°F (-20 to +40°C).
Enclosure: IP 65.
This unit is not suitable for cleaning with a high-pres-
sure cleaner and/or cleaning products.
10.3 Mechanical data
Gas types: natural gas, town gas, LPG (gaseous),
flue gas, biogas (max. 0.1 %-by-vol. H
Max. inlet pressure p
8.5 psi (600 mbar).
Max. test pressure for testing the entire system:
temporarily (< 15 minutes) 29 psi (2 bar).
Diaphragm pressure switch, silicone-free.
Diaphragm: DG: NBR, DG..S: IIR.
Housing: glass fibre reinforced PBT plastic with low
gas release.
Lower housing section: AlSi 12.
Weight: 9.5 to 11.3 oz (270 to 320 g).
Recommended tightening torque:
Component
Cover screws
½" NPT conduit
Rp 1/8 pipe connection on
aluminium lower section
Rp 1/4 connection (1/4" NPT) on
aluminium lower section
Rp 1/8 connection on upper
housing section
Clamping terminal screws
EN-5
S) and air..
2
= withstand pressure:
max.
tightening
torque
[ncm]
170 (15 lb")
250
1300
250
0.43"
2.76"
(11)
(70)
½" NPT Conduit
65
80
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