DG..T · Edition 01.22
EN-3
CAUtIon
If port
4
is at the top, IP 65 will not be satisfied.
4
IP 65
➔
The DG..T must not be in contact with masonry.
Minimum clearance 1" (25 mm).
➔
Ensure that there is sufficient installation space.
➔
Ensure unobstructed view of the hand wheel.
1
Disconnect the system from the electrical power
supply.
2
Close the gas supply.
3
Ensure that the pipeline is clean.
Ports
4
1
or
2
for
positive pressure (
¼" NPT)
4
for
negative pressure (
1
/
8
" NPT)
1
2*
Pres-
sure
Connect
Free
Positive
1
or
2
*
4
Negative
4
1
or
2
*
Differen-
tial
1
or
2
*
for higher absolute pressure.
4
for lower absolute pressure.
*Port
2
only on DG..T..2 with 2x ¼” NPT connections.
CAUtIon
Port
4
connects the upper diaphragm chamber
with the micro switch. Do not connect port
4
to
pipes carrying gas.
➔
The pressure switches are supplied with an inte-
grated vent limiter. In the event of a diaphragm
tear, the vent limiter limits the escape of gas to less
than 1.0 CFH of natural gas at 2.4 psi (DG..6T) or
7 psi (DG..10T – DG..500T). If necessary, port
4
(1/8" NPT) can be used to connect the venting line.
➔
A filter pad at port
4
protects the electrical contacts
in the DG..T from dirt particles in the surrounding
air or in the medium.
➔
Filter pad for port
4
: The web app PartDetective
for selecting spare parts is available at www.ad-
latus.org.
4 WIRInG
CAUtIon
– To ensure that the DL is not damaged during
operation, note the switching capacity, see
page 5 (10 Technical data).
In the case of low switching capacities, such as 24 V,
8 mA, for example, we recommend using an RC mod-
ule (22 Ω, 1 μF) in air containing silicone or oil.
1
Disconnect the system from the electrical power
supply.
2
3
4
5
½" NPT Conduit:
ø 0.4" (10 mm)
6
NC
1
COM
3
NO
2
NO
2
NC
1
COM
3
½"NPT
➔
DG..FT, DG..NT: the NO-to-COM connection is inter-
rupted if the pressure drops (contacts
3
and
2
open).
DG..T, DG..HT: the NC-to-COM connection is inter-
rupted if the pressure rises (contacts
3
and
1
open).
5 ADJUstMent
➔
The switching point is adjustable via hand wheel.
1
Disconnect the system from the electrical power
supply.
2
Detach the housing cover.
➔
Tightening torques, see page 5 (10 Technical
3
Connect an ohmmeter.
COM
3
NC
1
NO
2
NO
2
NC
1
COM
3
4
Set the switching point using the hand wheel.
5
Connect a pressure gauge.
6
0
1 cm = 1 mbar
(0.4" = 0.4"WC)
7
Apply pressure. In doing so, monitor the ohmmeter
and the pressure gauge.
➔
If the DG..T does not trip at the desired switching
point, correct the adjusting range using the hand
wheel. Relieve the pressure and repeat the process.
