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USA-5

USA

CAN

MEX

D

Pilot lamp set, blue

3

1

2

4

NO

2

NC

1

COM

3

L1

N

NO

2

NC

1

COM

3

L1

N

NC

1

COM

3

NO

NC

2

N

NC

1

COM

3

NO

NO 2

N

110/120 V AC, I = 1.2 mA, 

Order No.: 74916121.

Further information about accessories can be found 
in Technical Information bulletin DG (identical to 
DG..T) – www.docuthek.com

Technical data

Gas type: natural gas, town gas, LPG (gaseous), 
flue gas, biogas (max. 0.1 %-by-vol. H

2

S) and air.

Max. inlet pressure p

max.

 = withstand pressure, 

see page 3 (Adjustment).
Max. test pressure for testing the entire system: tem-
porarily (< 15 minutes) 29 psi (2 bar).
Switching capacity:

U

I (cos φ = 1) I (cos φ = 0.6)

DG..T

max. 240 V AC max. 5 A

max. 0.5 A

DG..TG* < 30 V AC/DC max. 0.1 A max. 0.05 A

* With gold contacts

Maximum medium and ambient temperatures:

-40 to +140°F (-40 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 me-

dia and ambient temperatures below -22°F (-30°C).
Storage temperature: -4 to +104°F  
(-20 to +40°C).
Diaphragm pressure switch, silicone-free.
Diaphragm: NBR.
Housing: glass fibre reinforced PBT plastic with 
low gas release.
Lower housing section: AlSi 12.
Enclosure: IP 65. Safety class: 1.
Cable diameter: AWG 24 to AWG 13  
(0.02 to 0.07" (0.5 to 1.8 mm)). 
Line entrance: ½" NPT conduit.
Electrical connection type: screw terminals. 
Max. tightening torque, see Technical Information 
bulletin DG. 
Safety information, see Safety manual DG (identi-
cal to DG..T) – www.docuthek.com.
Weight: 9.5 to 11.3 oz (270 to 320 g). 

Dimensions

1/2" NPT

2.76"

(70 mm)

0.43"

(11 mm)

3"

(76 mm)

Summary of Contents for DG T Series

Page 1: ...th socket IP 65 1 2 1x NPT connection 2x NPT connections K2 T2 N Red green pilot LED for 24 V DC AC Red green pilot LED for 110 to 230 V AC Blue pilot lamp for 120 V AC A External adjustment If none this specification is omitted DG T switches with rising pressure Part designations 1 2 3 5 4 1 Upper housing section with cover 2 Lower housing section 3 Hand wheel 4 NPT conduit coupling 5 Manual rese...

Page 2: ...rtical diaphragm Then the switching point pS corresponds to the scale value SK set on the hand wheel In other installation positions the switching point pS will change and no longer correspond to the scale value SK set on the hand wheel Check the switching point ps SK ps SK 0 08 WC ps SK 0 08 WC CAUTION If port 4 is at the top IP 65 will not be satisfied 4 IP65 The DG T must not be in contact with...

Page 3: ...0 0 4 0 4 WC 1 cm 1 mbar 6 Apply pressure In doing so monitor the ohm meter and the pressure gauge Pressure switches without manual reset DG T DG FT DG ST Type Adjusting range WC mbar Mean switching differential at min and max setting WC mbar Max inlet pressure pmax psi mbar No venting line With venting line1 DG 6T 0 2 2 4 0 5 6 0 08 0 12 0 2 0 3 2 4 psi 165 8 5 psi 600 DG 10T 0 4 4 1 10 0 1 0 16 ...

Page 4: ...tching point minus the pressure differential between the switching pressure and possible lock off For details of the pressure differential between the switching pressure and possible reset see table on page 3 Adjustment Tightness test 1 Shut off the downstream gas pipeline close to the valve 2 Open the valve and the gas supply Check all used ports for tightness N2 13 psi max 29 psi 15 min 3 4 Main...

Page 5: ... medium and ambient temperatures 40 to 140 F 40 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 me dia and ambient temperatures below 22 F 30 C Storage temperature 4 to 104 F 20 to 40 C Diaphragm pressure switch silicone free Diaphr...

Page 6: ...omplete see page 1 Part designa tions Report any transport damage immediately Storage Store the product in a dry and clean place Storage temperature see page 5 Technical data Packaging The packaging material is to be disposed of in accordance with local regulations Disposal Components are to be disposed of separately in accordance with local regulations Certification Directive on the restriction o...

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