DPD1T / DPD2T0 pages
Index: G / 923-1491
Metal Diaphragm Diff. Press. Switches
DPD1T/DPD2T
Mechanical single/dual pressure switch
Repeatability ±1.0 % at constant temperature
Features
► Metal diaphragm pressure switches
► Wetted parts welded
► Direct action, no friction, high accuracy
► Approvals: Ex ia, marine, SIL2 (IEC 61508)
Adjustment ranges
0.02 ... 10.2 bar, differential pressure
Applications
Machine and tool engineering,
Autoclaves,
Pump control,
Refrigerant monitoring,
Ship building applications
Technical Data
Electrical ratings and
hysteresis:
Stainless steel 17 - 7PH
Aluminium, nickel-plated
O-rings: FKM
Repeatability:
±1 % at constant temperature
Switching rate:
-40 °C... +75 °C
Protection class:
Top part: aluminium powder
coated
Bottom part: aluminium nickelplated
Process connection:
Internal terminal strip (0.5 - 2.5
mm2)
Standard: WAGO terminal and
cable gland
M20 x 1.5;
clamping range ø5 ... 11 mm
Turn the adjustment screw
clockwise to decrease the set
point
Intrinsically safe:
The switches are designed for
intrinsically safe applications.
Please add "Exi" to your ordering
details when placing an order. To
comply with the intrinsically safe
approval following max. ratings
must not be exceeded: Umax = 28
V Imax = 50 mA
Approval:
---
1/8" NPT female thread
Electrical connection:
DPD1T-...: approx. 1.6 kg
DPD2T-...: approx. 1.7 kg
IP65
Housing:
Weight:
max. 20/min
Temperature range:
A large variety of micro switches
offers different electrical ratings
and hysteresis for many
applications.
Set point adjustment:
Wetted parts:
Pressure Ranges
* Static operating pressures up to 28 bar possible. Differential pressure of the adjustable range must not be exceeded.
Pressure range
code
Adjustment range [bar] *
Max. operating
pressure [bar]
Proof pressure
[bar]
Max. hysteresis of switch
types in bar (end of range)
Increasing press.
Decreasing press.
(short term)
H, GH [bar]
M, GM [bar]
3SS
0.02 ... 0.2
0.002 ... 0.2
0.5
18SS
0.05 ... 1.2
0.030 ... 1.2
3,0
0.7
4.0
0.004
0.01
80SS
0.40 ... 5.4
0.030 ... 5.2
8,0
10.7
0.100
150SS
0.70 ... 10.2
0.100 ... 9.7
15,0
20.0
0.180
Overpressure
Barksdale
.
Subject to technical changes.
.
0.010
.
.
.
.
.
.
.
.
0.04
.
0.22
.
0.40
.
1
"