Krom Schroder DL H Series Operating Instructions Manual
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Krom Schroder DL H Series Operating Instructions Manual

Pressure switches for air
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Pressure switches for air DL..H, DL..n
Contents
1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Checking the usage . . . . . . . . . . . . . . . . . . . . . 2
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5 Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6 Function check. . . . . . . . . . . . . . . . . . . . . . . . . 5
7 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
8 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . 6
9 Designed lifetime . . . . . . . . . . . . . . . . . . . . . . . 7
10 Certification . . . . . . . . . . . . . . . . . . . . . . . . . . 7
11 Logistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
12 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
oPeRAtInG InstRUCtIons
Cert. Version 11.17 · Edition 05.22 · EN · 03251434

1 sAFetY

1.1 Please read and keep in a safe place
Please read through these instructions care-
fully before installing or operating. Following the installa-
tion, 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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Summary of Contents for Krom Schroder DL H Series

  • Page 1: Table Of Contents

    Pressure switches for air DL..H, DL..n oPeRAtInG InstRUCtIons Cert. Version 11.17 · Edition 05.22 · EN · 03251434 1 sAFetY 1.1 Please read and keep in a safe place Please read through these instructions care- fully before installing or operating. Following the installa- tion, pass the instructions on to the operator.

  • Page 2: Checking The Usage

    2.3 type label 2 CHeCKInG tHe UsAGe DL..H, DL..n For monitoring rising and falling air or flue gas pressure. D-49018 Osnabrück, Germany DG..H switches and locks off with rising pressure, DG..N switches and locks off with falling pressure. They can be unlocked using the manual reset. This function is only guaranteed when used within the specified limits –...
  • Page 3 3.1 Installation position 3.3 Connecting the pressure line ➔ DL..A: upon delivery, port 2 is closed off by a rub- Installation in the vertical or horizontal position, or sometimes upside down, preferably with vertical dia- ber cap. phragm. If installed in a vertical position, the switching DL..A point p will correspond to the scale value SK set on...

  • Page 4: Wiring

    4 WIRInG 5 ADJUstMent ➔ The switching point is adjustable via hand wheel. Pressure switch DL..H, DL..N can be used in 1 Disconnect the system from the electrical power Zone 1 (21) and 2 (22) hazardous areas if an isolating amplifier is installed upstream in the safe area as “Ex- supply.

  • Page 5: Function Check

    7.3 Fastening set with screws, U-shape bracket 6 FUnCtIon CHeCK 4 7 , 5 . 9 5 " ) We recommend a function check once a year. ( 1 . 8 7 5 ( 2 7 " ) DL..A 1 Press the test key during operation – the pressure switch switches.

  • Page 6: Technical Data

    7.5 Pilot lamp, red/blue Pilot lamp, red 110/120 V AC, I = 1.2 mA, Order No.: 74920430. 230 V AC, I = 0.6 mA, Order No.: 74920429. Pilot lamp, blue 110/120 V AC, I = 1.2 mA, Order No.: 74916121. 230 V AC, I = 0.6 mA, Order No.: 74916122. 3 COM 1 NC –...

  • Page 7: Designed Lifetime

    8.2 Mechanical data 10 CeRtIFICAtIon Medium temperature = ambient temperature. Declaration of conformity Max. inlet pressure p = withstand pressure, max. switching differential, see page 4 (5 Adjustment). Diaphragm pressure switch, NBR, silicone-free. Housing: glass fibre reinforced PBT plastic with low gas release.

  • Page 8: Logistics

    11 LoGIstICs transport Protect the unit from external forces (blows, shocks, vibration). Transport temperature: see page 6 (8 Technical data). Transport is subject to the ambient conditions de- scribed. Report any transport damage on the unit or packaging without delay. Check that the delivery is complete.

This manual is also suitable for:

Dl n series

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