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GB-8

D

GB

F

NL

I

E

Contact

If you have any technical questions, please contact 
your local branch office/agent. The addresses are 
available on the Internet or from Elster GmbH.

We reserve the right to make technical modifications 

in the interests of progress.

Elster GmbH

Strotheweg 1, D-49504 Lotte (Büren)

Tel. +49 541 1214-0

Fax +49 541 1214-370

[email protected], www.kromschroeder.com

Designed lifetime

This information on the designed lifetime is based on 

using the product in accordance with these operating 
instructions. Once the designed lifetime has been 
reached, safety-relevant products must be replaced.
Designed lifetime (based on date of manufacture) in 
accordance with EN 13611, EN 1854 for pressure 
switches:

Medium

Designed lifetime

Switching cycles

Time [years]

Gas

50,000

10

Air

250,000

10

You can find further explanations in the applica-

ble rules and regulations and on the afecor web-
site (www.afecor.org).

This procedure applies to heating systems. For 

thermoprocessing equipment, observe local regu-
lations.

Logistics

Transport

Protect the unit from external forces (blows, shocks, 
vibration). 

Transport temperature: see page  7 (Technical 

data).

Transport is subject to the ambient conditions de-

scribed.
Report any transport damage on the unit or packag-
ing without delay.
Check that the delivery is complete, see page 2 
(Part designations).

Storage

Storage temperature: see page 7 (Technical data).
Storage is subject to the ambient conditions de-
scribed.
Storage time: 6 months before using for the first time. 
If stored for longer than this, the overall service life will 
be reduced by the corresponding amount of extra 
storage time.

Packaging

The packaging material is to be disposed of in ac-

cordance with local regulations.

Disposal

Components are to be disposed of separately in 
accordance with local regulations.

Certification

Declaration of conformity

We, the manufacturer, hereby declare that the product 
DG with product ID No. CE-0085AP0467 complies 
with the requirements of the listed Directives and 
Standards.
Directives: 2014/35/EU – LVD, 2014/30/EU – EMC, 
2011/65/EU – RoHS II, 2015/863/EU – RoHS III
Regulation: (EU) 2016/426 – GAR
Standards: EN 1854:2010

The relevant product corresponds to the tested type 

sample. 

The production is subject to the surveillance proce-

dure pursuant to Regulation (EU) 2016/426 Annex III 
paragraph 3.
Elster GmbH

Scan of the Declaration of conformity (D, GB) – see 
www.docuthek.com

SIL, PL

Safety-specific characteristic values, see Safety 
manual/Technical Information DG (D, GB, F) –
 
www.docuthek.com

RoHS compliant, Eurasian Customs Union, 

AGA approved

AGA

Directive on the restriction of the use of 

hazardous substances (RoHS) in China

Scan of the Disclosure Table China RoHS2 – see 
certificates at www.docuthek.com

Contact

Summary of Contents for Krom Schroder DG H Series

Page 1: ...tes possible danger to life and limb CAUTION Indicates possible material damage All interventions may only be carried out by qualified gas technicians Electrical interventions may only be carried out by qualified electricians Conversion spare parts All technical changes are prohibited Only use OEM spare parts Changes to edition 11 17 The following chapters have been changed Adjustment Technical da...

Page 2: ... Installation CAUTION Please observe the following to ensure that the DG is not damaged during installation and operation Continuous operation with gases containing more than 0 1 by vol H2S or ozone concentrations exceeding 200 µg m accelerate the ageing of elastomer materials and reduce the service life Dropping the device can cause permanent dam age In this event replace the entire device and as...

Page 3: ...et at port 3 4 On IP 65 units the filter pad is fitted as standard see type label 1 Disconnect the system from the electrical power supply 2 Shut off the gas supply 3 Ensure that the pipeline is clean 4 Purge the pipe Installing DG H DG N Positive pressure measurement at port 1 5 Seal port 2 1 2 Rp 1 4 1 2 0 Positive pressure measurement at port 2 5 Seal port 1 1 Rp 1 2 pmax Rp 1 4 2 Rp 1 4 0 Nega...

Page 4: ...maged during opera tion note the switching capacity see page 7 Technical data 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 containing silicone or oil NO C 1 µF R 22 2 NC 1 COM 3 1 Disconnect the system from the electrical power supply M16 x 1 5 ø 4 10 mm 3 4 2 5 6 7 Contacts 3 and 2 close when subject to increas ing pressure...

Page 5: ...essure and pos sible reset Mean switching differential at min and max set ting Deviation from the switching point during testing pursuant to EN 1854 Gas pressure switches 15 Air pressure switches Deviation DG H N I 15 DG 1 5I 15 or 0 4 mbar DG 12I 15 or 0 5 mbar DG 18I 15 or 0 5 mbar If the DG does not trip at the desired switch ing point correct the adjusting range using the hand wheel Relieve th...

Page 6: ...tion of condensation the cover with pressure equalization element can be used The diaphragm in the screw connector is designed to ventilate the cover without allowing water to enter Order No 74923391 Restrictor orifice In the case of high pressure fluctuations we recom mend using a restrictor orifice contains non ferrous metals R Rp Hole diameter 0 2 mm Order No 75456321 hole diameter 0 3 mm Order...

Page 7: ...of the elastomer ma terials and reduces the service life please contact manufacturer Enclosure IP 54 or IP 65 Safety class 1 This unit is not suitable for cleaning with a high pressure cleaner and or cleaning products Mechanical data Gas type natural gas town gas LPG gaseous flue gas biogas max 0 1 by vol H2S and air Max inlet pressure pmax withstand pressure see page 5 Adjustment Max test pressur...

Page 8: ...ithout delay Check that the delivery is complete see page 2 Part designations Storage Storage temperature see page 7 Technical data Storage is subject to the ambient conditions de scribed Storage time 6 months before using for the first time If stored for longer than this the overall service life will be reduced by the corresponding amount of extra storage time Packaging The packaging material is ...

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