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krom schroeder DG B Series Operating Instruction

Pressure switches for gas
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Pressure switches for gas DG..B, DG..U
Contents
1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Checking the usage . . . . . . . . . . . . . . . . . . . . . 2
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
5 Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
6 Tightness test. . . . . . . . . . . . . . . . . . . . . . . . . . 4
7 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . 4
8 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
9 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . 6
10 Designed lifetime . . . . . . . . . . . . . . . . . . . . . . 7
11 Certification . . . . . . . . . . . . . . . . . . . . . . . . . . 7
12 Logistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
13 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
oPeRAtInG InstRUCtIons
Cert. Version 11.17 · Edition 11.24 · EN · 03251234

1 sAFetY

1.1 Please read and keep in a safe place
Please read through these instructions
carefully before installing or operating. Following the
installation, pass the instructions on to the operator.
This unit must be installed and commissioned in
accordance with the regulations and standards in
force. These instructions can also be found at www.
docuthek.com.
1.2 explanation of symbols
1  , 2  , 3  , a  , b  , c  = Action
➔ = Instruction
1.3 Liability
We will not be held liable for damage resulting from
non-observance of the instructions and non-com-
pliant use.
1.4 safety instructions
Information that is relevant for safety is indicated in
the instructions as follows:
DAnGeR
Indicates potentially fatal situations.
WARnInG
Indicates 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.
1.5 Conversion, spare parts
All technical changes are prohibited. Only use OEM
spare parts.

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  • Page 1: Table Of Contents

    Pressure switches for gas DG..B, DG..U oPeRAtInG InstRUCtIons Cert. Version 11.17 · Edition 11.24 · EN · 03251234 1 sAFetY 1.1 Please read and keep in a safe place Please read through these instructions carefully before installing or operating. Following the installation, pass the instructions on to the operator.

  • Page 2: Checking The Usage

    2 CHeCKInG tHe UsAGe 3 InstALLAtIon Gas pressure switches DG for monitoring increasing CAUtIon and decreasing gas or air pressure. Please observe the following to ensure that the negative Positive pressure unit is not damaged during installation: pressure – Dropping the device can cause permanent DG..B Gas, air, flue gas –...

  • Page 3: Wiring

    3.2 Connection options through. It can then only be operated at this power rating or higher power rating. 1 and 2 Positive Pressure (G ¼" ) CAUtIon – To ensure that the DG..B, DG..U is not 3 and 4 damaged during operation, note the switching Negative Pressure (G "...

  • Page 4: Tightness Test

    7 Apply pressure. In doing so, monitor the 8 ACCessoRIes switching point on the ohmmeter and the 8.1 Connecting set pressure gauge. 8 If the DG..B, DG..U does not trip at the desired switching point, correct the adjusting range using the hand wheel. Relieve the pressure and repeat the process.
  • Page 5 8.7 test key PIA The enclosed filter pad is designed to protect the open 1/8" port from the ingress of dirt or insects. To test the min. pressure switch, the DG..B, DG..U Scope of delivery: can be vented in its switched state using the PIA A 1 x cover, 100 x 100 x 100 mm test key (contains non-ferrous metals).

  • Page 6: Technical Data

    8.10 standard coupler plug NO 2 Order No.: 74920412 8.11 standard coupler plug set For CE certified pressure switches, Order No.: 8.13 Red/green LeD for 24 V DC/AC or 74915388 110–230 V AC 24 V DC, I = 16 mA; 24 V AC, I = 8 mA, Order No.: 74921089.

  • Page 7: Designed Lifetime

    terials and reduces the service life (please contact 10 DesIGneD LIFetIMe manufacturer). This information on the designed lifetime is based Enclosure: IP 54 or IP 65. on using the product in accordance with these Safety class: 1. operating instructions. Once the designed lifetime 9.2 Mechanical data has been reached, safety-relevant products must be Gas type: natural gas, town gas, LPG (gaseous),...

  • Page 8: Logistics

    11.2 sIL, PL 13 DIsPosAL Devices with electronic components: Weee Directive 2012/19/eU – Waste electrical and electronic equipment Directive Safety-specific characteristic values, see Safety manual/Technical Information DG (D, GB, F) – www. At the end of the product life (number of operat- docuthek.com. ing cycles reached), dispose of the packaging and 11.3 AGA approval, eurasian Customs Union, product in a corresponding recycling centre.

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