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Cert. version 05.18
© 2018 Elster GmbH · Edition 05.18
Operating instructions
D
GB
F
NL
I
E
GB-1
03250205
Translation from the German
Pressure switches for air DL..K
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 opera-
tor. 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 , 2 , 3
... = Action
▷
= Instruction
Liability
We will not be held liable for damage resulting from
non-observance of the instructions and non-com-
pliant 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
– Declaration of conformity
Checking the usage
DL..K
For monitoring positive, negative or differential air or
flue gas pressures.
This function is only guaranteed when used within the
specified limits – see page 3 (Technical data). Any
other use is considered as non-compliant.
Type code
Code
Description
DL
Pressure switch for air
3,3 – 40
Max. setting in Pa
K
With tube connection and hand wheel
for adjustment
T
T-product
G
Gold contacts
-1
-2
-3
Electrical connection
via AMP plugs
via screw terminals, ½" NPT
via screw terminals
K2
N
T
T2
Red/green pilot LED 24 V DC/AC
Blue pilot lamp 120 V AC
Blue pilot lamp 230 V AC
Red/green pilot LED 230 V AC
W
Z-angle bracket
Part designations
1
2
3
4
1
Upper housing section with cover
2
Lower housing section
3
Hand wheel
4
M16 cable gland
Type label
Max. inlet pressure p
max
= withstand pressure, mains
voltage, switching pressure, ambient temperature
and enclosure: see type label.
Osnabrück, Germany
DL..K
