D1X / D2X0 pages
Index: E / 923-1488
Metal Diaphragm Switches `
D1X/D2X
Mechanical single/dual pressure switch
Repeatability ±1.0 % at constant temperature
Features
► Metal diaphragm pressure switch
► Wetted parts welded
► Direct action, no friction, high accuracy
► Approvals: Ex ia, Ex d, UL, SIL2/3 (IEC 61508)
Adjustment ranges
0.012 ... 10.3 bar and
-0.006 ... -1 bar (Vacuum)
Applications
Petrochemical industry,
Process technology
Technical Data
Weight
Approval:
max. 20/min
Temperature range:
IP65
Housing:
Explosion proof housing, aluminum
anodized and lacquered
Process connection:
1/4" NPT female thread
Optional: 1/2" NPT female thread
(P2)
Electrical connection:
Internal terminal strip (0.5 - 2.5
mm2),
approved cable gland has to be
provided by the customer
Ex: Ex d II C T6 acc. to ATEX
cULus: Class I, Groups B, C, D
Class II, Groups E, F, G
-40 °C... +75 °C
Protection class:
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
±1 % at constant temperature
Switching rate:
Turn the adjustment screw
clockwise to decrease the set
point
Intrinsically safe:
Stainless steel 17 - 7PH/SS304
D1X-...: approx. 2.7 kg
D2X-...: approx. 2.8 kg
Set point adjustment:
Wetted parts:
Repeatability:
Electrical ratings and
hysteresis:
A large variety of micro switches
offers different electrical ratings
and
hysteresis for many applications.
acc. to Underwriter
Laboratories Inc. and
Canadian Standard Assn.
Pressure Ranges
Pressure
range
code
Adjustment range [bar]
Max. operating
pressure [bar]
Increasing press.
Decreasing press.
Proof pressure
[bar]
Max. hysteresis of switch
types in bar (end of range)
(short term)
H, GH [bar]
M, GM [bar]
0.7
0.004
0.010
Overpressure
3SS
0.012 ... 0.2
0.002 ... 0.196
0.5
18SS
0.050 ... 1.2
0.030 ... 1.2
3.0
80SS
0.300 ... 5.5
0.030 ... 5.3
8.0
150SS
0.500 ... 10.3
0.100 ... 9.9
3SS
-0.006 ... -0.2
18SS
-0.040 ... -1.0
.
4.0
.
.
0.010
.
10.7
0.100
15.0
20.0
0.180
-0.002 ... -0.196
0.15
0.2
0.004
-0.020 ... -0.970
0.5
1.0
.
.
.
.
.
.
.
.
0.040
0.220
0.400
.
.
.
.
Vacuum
Barksdale
.
.
Subject to technical changes.
.
.
0.020
.
.
0.009
0.060
.
.
1
"