Honeywell DL-K User Manual

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445501

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TR CZ PL RUS H

Operating instructions

Pressure switches for air DL..A, DL..K

© 2018 Elster GmbH · Edition 05.18

Cert. version 05.18

Translation from the German

Contents

Contents

Pressure switches for air DL..A, DL..K......1

Contents ..............................1

Safety.................................1

Checking the usage .....................

Type code .............................2

Part designations ........................ 2

Type label.............................. 2

Installation ............................

Positive pressure measurement .............3

Negative pressure measurement . . . . . . . . . . . . 4

Differential pressure measurement ...........4

Wiring ................................4

Adjustment ............................5

Function check.........................5

Accessories ...........................5

Z-angle bracket .........................5

U-angle bracket .........................6

Standard coupler plug ....................6

Motor flange adapter . . . . . . . . . . . . . . . . . . . . . 6

Tube set ...............................6

Pilot lamp set, red or blue .................6

LED set, red/green....................... 7

External adjustment ......................7

Technical data .........................7

Designed lifetime ........................ 7

Logistics ..............................8

Certification ...........................8

Declaration of conformity ..................8

Contact ...............................8

DK S N P GR

➔ www.docuthek.com

Safety

Safety

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.

Explanation of symbols

• , 1 ,  ,  ... = Action

▷ = Instruction

Liability

We will not be held liable for damage resulting from
non-observance of the instructions and non-com­pliant use.

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.

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
– Installation
– Certification

GB-1

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Checking the usage

DL 1,5 – A, DL K, DL 5 – 150A, DL 5 – 150K

For monitoring positive, negative or differential air or
flue gas pressures.

This function is only guaranteed when used within

the specified limits– see page7 (Technical data).
Any other use is considered as non-compliant.

Type code

Code Description

DL Pressure switch for air
1,5 – 150 Max. setting in mbar
K
A

T T-product

-

-

-4

-5

-6

-9
K
T
T
N
A External adjustment
W Z-angle bracket

Part designations

1 Upper housing section with cover

 Lower housing section
 Hand wheel
4 M16 cable gland

Type label

Max. inlet pressure = withstand pressure, mains volt­age, ambient temperature, enclosure: see type label.

With tube connection and hand wheel

Additionally with Rp¼connection

(optional: Rp

1

/8)

Electrical connection

via screw terminals, ½" NPT

via screw terminals

via screw terminals, IP 65

4-pin plug, without socket

4-pin plug, with socket

4-pin plug, with socket, IP 65

Red/green pilot LED for 24 V DC/AC

Blue pilot lamp for 230 V AC

Red/green pilot LED for 230 V AC

Blue pilot lamp for 120 V AC

22

3

4

1

D-49018 Osnabrück, Germany

DL

CE

2

3

1

Installation

CAUTION

Please observe the following to ensure that the DL
is not damaged during installation and operation:

– Dropping the device can cause permanent da-

mage. In this event, replace the entire device

and associated modules before use.
– Use approved sealing material only.
– Note the max. medium and ambient tempera-

tures, see page7 (Technical data).
– Condensation must not be allowed to get into

the housing (if possible, install pipework with an

ascending gradient). Otherwise, there is a risk of

icing of condensation at subzero temperatures,

the switching point shifting or corrosion in the

device which can lead to malfunctions.
– Protect the connections against dirt or moisture

in the medium to be measured or the surround-

ing air. If necessary, install a filter.
– In case of highly fluctuating pressures, install a

damping nozzle/restrictor orifice.
– When installing outdoors, place the DL in a

roofed area and protect from direct sunlight

(even IP65 version). To avoid condensation,

the cover with pressure equalization element

can be used on some types.
– In the case of an uneven mounting surface, se-

cure the pressure switch to the mounting plate

or air duct with only two screws on the same

side in order to avoid subjecting the pressure

switch to mechanical stress.
– When using silicone tubes, only use silicone

tubes which have been sufficiently cured. Va-

pours containing silicone can adversely affect

the functioning of electrical contacts.
– In the case of high humidity or aggressive gas

components, we recommend using a pressure

switch with gold contact due to its higher resist-

ance to corrosion. Closed-circuit current moni-

toring is recommended under difficult operating

conditions.

▷

The DL must not be in contact with masonry.

Minimum clearance 20mm.

▷ Ensure that there is sufficient installation space.
▷ Ensure unobstructed view of the hand wheel.
▷

Installation in the vertical or horizontal position, or

upside down, preferably with vertical diaphragm.

If installed in a vertical position, the switching

pointpS will correspond to the scale valueSK.

GB-2

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▷

50 (1.97")

30 (1.18")

20

(0.79")

25 (0.98")

45 (1.77")

5,2

(0.2")

11,3 (0.44")

7 (0.27")

7,5 (0.3")

10

(0.4")

40 (1.6")

59 (2.3")

ø 5,5 (0.22")
ø 6 (0.22")

ø 4,2 (0.17")

10 (0.39")

1 (0.04")

1 = Rp 1/4 (+),

2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)

(4 = Rp

1

/8 (-),

1

/8" NPT (-))

1

(4)

2

3

(1/4" NPT (+))

1 = Rp 1/4 (+),

2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)

(4 = Rp

1

/8 (-),

1

/8" NPT (-))

1 = Rp

1

/4 (+),

2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)

(4 = Rp

1

/8 (-),

1

/8" NPT (-))

1

(4)

2

3

1

Test

2

3(4)

(1/4" NPT (+))

(

1

/4" NPT (+))

1 = Rp 1/4 (+),

2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)

(4 = Rp

1

/8 (-),

1

/8" NPT (-))

1 = Rp

1

/4 (+),

2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)

(4 = Rp

1

/8 (-),

1

/8" NPT (-))

2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)

)

1

(4)

2

3

1

2

3

Test

2

3(4)

(1/4" NPT (+))

(

1

/4" NPT (+))

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.

SK + 0.18 mbar

[+ 0.071 "WC]

SK - 0.18 mbar

[- 0.071 "WC]

DL 1,5A

DL 3K,
DL 3A
DL 5 – 150A,
DL 5 – 150K

▷

For 1 mm thick mounting plates, use self-tapping
screws for plastic:

DL..A, DL 3K: Ø 3.5 x 8 mm or Ø 4 x 8 mm.

DL 5 – 150K: Ø3.5 x 16 mm.

1 Fit the DL.

DL 1,5A
DL 3A
DL 3K

e.g. SK = -0.5:

ps = -0.5 + 0.18

ps = -0.32 mbar

49,5 (1.9")

44,5 (1.7")

DL..A: Rp ¼
(DL..AT: ¼" NPT)

ø 6,1 (ø 0.24")

 Connect the pressure line.

▷

DL..A: upon delivery, port 2 is closed off by a
rubber cap.

DL 1,5A, DL A

1 = Rp 1/4 (+),

2

3

1

(4)

(1/4" NPT (+))
2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)

1

(4 = Rp

/8 (-),

1

/8" NPT (-))

▷ Positive pressure: port 1 or 2
▷ Negative pressure: port 3
▷ Special version DL 3A – 3Z: port 4

DL 5 – 150A

Test

2

1

3(4)

1

/4 (+),

1 = Rp

1

/4" NPT (+))

(
2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)

1

(4 = Rp

/8 (-),

1

/8" NPT (-))

▷ Positive pressure: port 1 or 2
▷

Negative pressure: port 3; after unscrewing
port3 also port4

DL K

2

3,5 × 8
(0.14" × 0.3")

DL 5–150A

2,7 × 8
(0.11" × 0.3")

3,5 × 8
(0.14" × 0.3")

DL 5–150K

64 (2.5")

49,5 (1.9")

54,5 (2.1")

2,7 × 8
(0.11" × 0.3")

DL..A: Rp ¼
(DL..AT: ¼" NPT)

44,5 (1.7")

2,7 × 16
(0.11" × 0.6")

45 (1.8")

▷ Positive pressure: port 2
▷ Negative pressure: port 3

DL 5 – 150K

2

(5)

▷ Positive pressure: port 2
▷ Negative pressure: port 3
▷ Optional test point for positive pressure: port5

Positive pressure measurement

▷ 1 or 2 = positive pressure port(+).
▷ If port2 is used, close off port1.

3 or 4 = remains open to ventilate the upper

▷

diaphragm chamber.

GB-3

3 = ø 4,75 x 1 mm (-)

3

2 = ø 4,75 x 1 mm (+)

3

3 = ø 4,75 x 1 mm (-)

(5 = ø 4,75 x 1 mm (+)

2 = ø 4,75 x 1 mm (+)