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Krom Schroder DL A Series Operating Instructions Manual

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Pressure switches for air DL..A, DL..K
Contents
1 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Checking the usage . . . . . . . . . . . . . . . . . . . . . 2
3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5 Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6 Function check. . . . . . . . . . . . . . . . . . . . . . . . . 6
7 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
8 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . 7
9 Designed lifetime . . . . . . . . . . . . . . . . . . . . . . . 7
10 Certification . . . . . . . . . . . . . . . . . . . . . . . . . . 8
11 Logistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
12 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
oPeRAtInG InstRUCtIons
Cert. Version 05.18 · Edition 02.22 · EN · 34425501

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 A Series

  • Page 1: Table Of Contents

    Pressure switches for air DL..A, DL..K oPeRAtInG InstRUCtIons Cert. Version 05.18 · Edition 02.22 · EN · 34425501 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 1,5–3A, DL 3K, DL 5–150A, DL 5–150K D-49018 Osnabrück, Germany For monitoring positive, negative or differential pres- sures of air, flue gas or other non-aggressive gases. This function is only guaranteed when used within the specified limits – see page 7 (8 Technical data). Any other use is considered as non-compliant.
  • Page 3 3.1 Installation position 49,5 (1.9") ø 2,7 x 8 ø 3,5 x 8 (ø 0.11" x 0.3") (ø 0.14" x 0.3") ➔ Installation in the vertical or horizontal position, or DL..A: Rp ¼ sometimes upside down, preferably with vertical (DL..AT: ¼" NPT) diaphragm.

  • Page 4: Wiring

    DL 5–150K In the case of low switching capacities, such as 24 V, 8 mA, for example, we recommend using an RC mod- ule (22 Ω, 1 μF) in air containing silicone or oil. 2 = ø 4,75 x 1 mm (+) C = 1 µF R = 22 Ω...

  • Page 5: Adjustment

    Max. Mean Adjusting inlet switching range pres- differential [mbar] sure [mbar] [mbar] min. max. min. max. 5 ADJUstMent DL 50A, ➔ The switching point is adjustable via hand wheel. DL 50K, 1 Disconnect the system from the electrical power DL 50AT, DL 50KT supply. 2 Unscrew the housing cover.

  • Page 6: Function Check

    6 FUnCtIon CHeCK NO 2 We recommend a function check once a year. 1 Press the test key during operation – the pressure switch switches. TEST 2 In case of differential pressure, press both keys simultaneously. – TEST 7.2 Red/green pilot LeD for 24 V DC/AC or for TEST 110 V AC to 230 V AC 24 V DC, I = 16 mA;...

  • Page 7: Technical Data

    8.3.1 switching capacity 8 teCHnICAL DAtA 8.1 Ambient conditions (cos φ = 1) (cos φ = 0.6) Enclosure to IEC 60529: IP 54 (IP 65). 24– 0.05–5 A 0.05–1 A Permitted ambient temperature in operation: 250 V AC DL..A, DL..K: -20 to +80°C (-4 to +176°F), DL..G 5–250 V AC 0.01–5 A 0.01–1 A DL..T: -40 to +60°C (-40 to +140°F). DL..G 5–48 V DC 0.01–1 A...

  • Page 8: Certification

    10 CeRtIFICAtIon 11 LoGIstICs Declaration of conformity transport Protect the unit from external forces (blows, shocks, vibration). Transport temperature: see page 7 (8 Technical data). We, the manufacturer, hereby declare that the products Transport is subject to the ambient conditions de- DL..A, DL..K with product ID No.

This manual is also suitable for:

Dl k seriesDl 50aDl 50kDl 50atDl 50ktDl 150a ... Show all

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