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GB-3

D

GB

F

NL

I

E

Adjustment

 

The switching pressure can be adjusted using the 
hand wheel and scale. The switching pressure 
differs from the adjusted setpoint by a maximum 
of ± 15%, when it has been set for increasing 
pressure and with a vertical diaphragm.

Type

Adjusting 

range 

[Pa]

Mean 

switching 

differential 

[Pa]

Deviation from 

the switching 

point during 

testing 

pursuant to 

EN 1854

min. max. min. max.

DL 3,3K 20

330

8

20 ± 7  Pa/± 15%

DL 3,5K 30

350

10

20 ± 5  Pa/± 15%

DL 4,5K 30

500

12

25 ± 5  Pa/± 15%

DL 5,1K 100 510

15

30

± 15%

DL 8K

50

800

17

30 ± 14  Pa/± 15%

DL 11K 100 1100 20

35 ± 20  Pa/± 15%

DL 16K 400  1600 30

40

± 15%

DL 24K 200 2400 45

55 ± 40  Pa/± 15%

DL 40K 500 4000 70

90

± 15%

Type

Adjusting 

range 

["WC]

Mean 

switching 

differential 

["WC]

Deviation from 

the switching 

point during 

testing pursuant 

to EN 1854

min. max. min. max.

DL 3,5KT 0.12 1.4 0.04 0.08 ± 0.02 "WC/± 15%

DL 4,5KT 0.12

2

0.05 0.10 ± 0.02 "WC/± 15%

DL 8KT

0.20 3.2 0.07 0.12 ± 0.06 "WC/± 15%

DL 11KT 0.4 4.4 0.08 0.14 ± 0.08 "WC/± 15%

DL 16KT 1.6 6.4 0.12 0.16

± 15%

DL 24KT 0.8 9.6 0.18 0.22 ± 0.16 "WC/± 15%

DL 40KT 2.0 16.0 0.28 0.36

± 15%

 1 

  Disconnect the system from the electrical power 

supply.

+

+

1

NC

2

NO

3

COM

5

4

3

2

NO

2

NC

1

COM

3

Maintenance

 

We recommend a function check once a year.

Accessories

Angle brackets, securing clips and other acces-
sories, see Technical Information DL (D, GB, F) – 
www.docuthek.com

Tube set

2  m PVC tube, 2  duct connection flanges with 
screws, including angle connectors and extension. 
Order No.: 74919272.

Technical data

Gas types: air or flue gas, no flammable gases, no 
aggressive gases.
Max. inlet pressure p

max 

= withstand pressure: 

5 kPa,
differential pressure: 5 kPa.
Micro switch to EN 61058-1.  
Switching capacity: 
DL..K: 

 24 V (min. 0.05 A) to 250 V AC 
(max. 5 A, at cos φ 0.6 = 1 A),

DL..KG:   5 V (min. 0.01 A) to 250 V AC 

(max. 5 A, at cos φ 0.6 = 1 A), 
5 V (min. 0.01 A) 
to 48 V DC (max. 1 A),

DL..KT:   30 – 240 V AC, 50/60 Hz, 

5 A resistive or  
0.5 A inductive (cos φ = 0.6),

DL..KTG:   < 30 V AC/DC, 

0.1 A resistive or  
0.05 A inductive (cos φ = 0.6).

Contact gap < 3 mm (μ).
Ambient temperatures: 
DL..K: -20 to +85°C (-4 to +185°F), 
DL..KT: -40 to +60°C (-40 to +140°F).
Storage and transport temperature: 
-20 to +40°C (-4 to +104°F).
Cable diameter: 0.5 to 1.8 mm  
(AWG 24 to AWG 13).
Line entrance: M16 x 1.5, clamping range: 
 diameters of 4 to 10 mm.

Summary of Contents for krom schroder DL K Series

Page 1: ...ed 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 Checking the usage Declaration of conformity Checking the usage DL K For monitoring positive negative or differential air or flue gas pres...

Page 2: ...pside down preferably with vertical diaphragm If installed in a vertical position the switching point pS will correspond to the scale value SK If installed in another position the switching point pS will change and no longer correspond to the set scale value SK Switching point pS must be checked ps SK SK 13 Pa 0 052 WC SK 13 Pa 0 052 WC 1 Install the DL using screws a securing clip or an angle bra...

Page 3: ...2 0 16 WC 15 DL 40KT 2 0 16 0 0 28 0 36 15 1 Disconnect the system from the electrical power supply 1 NC 2 NO 3 COM Ω 5 4 3 2 NO 2 NC 1 COM 3 Maintenance We recommend a function check once a year Accessories Angle brackets securing clips and other acces sories see Technical Information DL D GB F www docuthek com Tube set 2 m PVC tube 2 duct connection flanges with screws including angle connectors...

Page 4: ...ct the unit from external forces blows shocks vibration On receipt of the product check that the delivery is complete 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 3 Technical data Storage time 6 months before using for the first time If stored for longer than this the overall service life will ...

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