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(0.14" × 0.3")
54,5 (2.1")
DL 5–150K
64 (2.5")
2 Connect the pressure line.
▷ DL..A: upon delivery, port 2 is closed off by a
rubber cap.
DL 1,5A, DL 3A
2 3
1
2 3
1
▷ Positive pressure: port 1 or 2
(4)
▷ Negative pressure: port 3
▷ Special version DL 3A – 3Z: port 4
2 3
2
1
1
DL 5 – 150A
3(4)
2 3
1
2
1
3(4)
2 3
2
1
▷ Positive pressure: port 1 or 2
▷ Negative pressure: port 3; after unscrewing
3(4)
port 3 also port 4
2 3
2
1
DL 3K
3(4)
2 3
2 3
(5)
2 3
2 3
(5)
▷ Positive pressure: port 2
▷ Negative pressure: port 3
2 3
DL 5 – 150K
(5)
2 3
(5)
▷ Positive pressure: port 2
▷ Negative pressure: port 3
▷ Optional test point for positive pressure: port 5
2,7 × 16
(0.11" × 0.6")
45 (1.8")
1 = Rp
/
(+),
1
4
(
1
/
" NPT (+))
4
2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)
(4)
1 = Rp
1
/
(+),
4
(4 = Rp
/
(-),
1
8
(
1
/
" NPT (+))
4
/
" NPT (-))
1
8
2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)
(4 = Rp
/
(-),
1
1 = Rp
/
(+),
8
1
1 = Rp
/
(+),
1
4
4
/
" NPT (-))
1
(
8
/
" NPT (+))
1
(
/
" NPT (+))
1
4
4
2 = ø 4,75 x 1 mm (+)
2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)
1 = Rp
1
/
(+),
3 = ø 4,75 x 1 mm (-)
4
(4)
1 = Rp
/
(+),
1
(
1
/
" NPT (+))
4
(4 = Rp
/
(-),
4
1
(4 = Rp
/
(-),
1
8
8
(
/
" NPT (+))
1
2 = ø 4,75 x 1 mm (+)
4
/
" NPT (-))
1
/
" NPT (-))
1
8
8
2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)
(4)
3 = ø 4,75 x 1 mm (-)
(4 = Rp
1
/
(-),
8
(4 = Rp
/
(-),
1
/
" NPT (-))
1
1 = Rp
8
/
(+),
2 = ø 4,75 x 1 mm (+)
1
8
4
/
" NPT (-))
1
(
8
/
" NPT (+))
3 = ø 4,75 x 1 mm (-)
1
4
2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)
1 = Rp
1
/
(+),
4
2 = ø 4,75 x 1 mm (+)
(
1
/
" NPT (+))
(4 = Rp
/
(-),
4
1
8
3 = ø 4,75 x 1 mm (-)
2 = ø 4,75 x 1 mm (+)
/
" NPT (-))
1
8
3 = ø 4,75 x 1 mm (-)
(4 = Rp
/
(-),
1
8
2 = ø 4,75 x 1 mm (+)
2 = ø 4,75 x 1 mm (+)
/
" NPT (-))
1
8
3 = ø 4,75 x 1 mm (-)
3 = ø 4,75 x 1 mm (-)
(5 = ø 4,75 x 1 mm (+))
2 = ø 4,75 x 1 mm (+)
2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)
3 = ø 4,75 x 1 mm (-)
(5 = ø 4,75 x 1 mm (+))
2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)
(5 = ø 4,75 x 1 mm (+))
2 = ø 4,75 x 1 mm (+)
3 = ø 4,75 x 1 mm (-)
(5 = ø 4,75 x 1 mm (+))
Positive pressure measurement
45 (1.77")
25 (0.98")
▷ 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.
Negative pressure measurement
24 (0.94")
43
64 (2.52")
▷ 3 or 4 = negative pressure port (-).
▷ 1 or 2 = remains open to ventilate the upper
diaphragm chamber.
Differential pressure measurement
▷ 1 or 2 = port for the higher positive pressure or
lower negative pressure (+).
▷ 3 or 4 = port for the lower positive pressure or
higher negative pressure (-).
3 Seal the ports that are not in use.
Wiring
▷ If the DL..G (DL..TG) has switched a voltage
> 24 V (> 30 V) and a current > 0.1 A at cos φ = 1
or > 0.05 A at cos φ = 0.6 once, the gold plating
on the contacts will have been burnt through. It
can then only be operated at this power rating
or higher power rating.
CAUTION
To ensure that the DL is not damaged during opera-
tion, note the switching capacity, see page 5
(Technical data).
▷ In the case of low switching capacities, such as
24 V, 8 mA, for example, we recommend us-
ing an RC module (22 Ω, 1 μF) in air containing
silicone or oil.
GB-3
(1.69")
-0,3
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