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▷ Deviation from the switching point during testing
pursuant to EN 1854:
Air pressure switches:
DL 5 – 150A,
DL 5 – 150K
DL 1,5A
DL 3A, DL 3K
▷ If the DL does not trip at the desired switch-
ing point, correct the adjusting range using the
hand wheel. Relieve the pressure and repeat
the process.
Function check
▷ We recommend a function check once a year.
▷ Press the test key during operation – the pressure
switch switches.
TEST
▷ In case of differential pressure, press both keys
simultaneously.
+
TEST
Accessories
See Technical Information DG (D, GB, F) –
www.docuthek.com
Technical data
Ambient conditions
This unit is not suitable for cleaning with a high-
pressure cleaner and/or cleaning products.
Gas type: air or flue gas, no flammable gases, no
aggressive gases.
Safety class II to VDE 0106-1.
Max. medium and ambient temperatures:
DL: -20 to +80°C (-4 to +176°F),
DL..T: -40 to +60°C (-40 to +140°F).
Long-term use in the upper ambient temperature
range accelerates the ageing of the elastomer ma-
terials and reduces the service life (please contact
manufacturer).
Enclosure to IEC 60529: IP 54, IP 65.
Deviation
± 15%
± 15% or ± 6 Pa
± 15% or ± 6 Pa
+
–
TEST
Mechanical data
Max. inlet pressure = withstand pressure: see type
label or page 4 (Adjustment).
Diaphragm pressure switch, NBR, silicone-free.
Housing: glass fibre reinforced PBT plastic with
low gas release.
Max. tightening torque, see Technical Information
bulletin DL (D, GB, F) – www.docuthek.com.
Weight: DL..A: 190 g (6.7 oz), DL..K: 220 g
(7.8 oz).
Electrical data
Micro switch to EN 61058-1.
Switching capacity:
DL..: 24 V (min. 0.05 A) to 250 V AC
(max. 5 A, at cos φ 0.6 = 1 A).
DL..G: 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..T: 30 – 240 V AC, 50/60 Hz,
5 A resistive or
0.5 A inductive (cos φ = 0.6),
DL..TG: < 30 V AC/DC,
0.1 A resistive or
0.05 A inductive (cos φ = 0.6).
Contact gap < 3 mm (μ).
Line entrance: M16 x 1.5 (1/2" NPT conduit),
clamping range: diameters of 4 to 10 mm.
Type of connection: screw terminals, cable diam-
eter: 0.5 to 1.8 mm (AWG 24 to AWG 13).
Designed lifetime
This information on the designed lifetime is based on
using the product in accordance with these operating
instructions. Once the designed lifetime has been
reached, safety-relevant products must be replaced.
Designed lifetime (based on date of manufacture) in
accordance with EN 13611, EN 1854 for pressure
switches: 10 years, 250,000 switching cycles.
You can find further explanations in the applicable
rules and regulations and on the afecor website
(www.afecor.org).
This procedure applies to heating systems. For
thermoprocessing equipment, observe local regu-
lations.
GB-5
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