EN
WIKA operating instructions DELTA-plus, DELTA-comb and DELTA-switch
10
14532078.01 12/2021 EN/DE
3. Specifications
Specifications
DELTA-switch, model DPS40
Case diameter
100 mm
Differential pressure measu-
ring ranges
0 ... 0.25 to 0 ... 10 bar
Max. working pressure (stat.)
25 bar
Overload safety
either side max. 25 bar
Permissible temperature
Ambient: -10 ... +70 °C, medium: -10 ... +90 °C
Storage: -40 ... +70 °C
Ingress protection
IP65 per IEC/EN 60529
Measuring chamber (wetted)
Aluminium, EN AC–Al Si9Cu3(Fe), black painted
(option: stainless steel)
Process connections (wetted)
2 x G 1/4 female thread, lower mount, in-line, centre
distance 26 mm
Pressure elements (wetted)
Differential pressure: Compression springs from
stainless steel 1.4310 and separating diaphragm
from FPM/FKM (option: NBR)
Transmission parts (wetted)
Stainless steel 1.4301, 1.4305, 1.4310, FPM/FKM
(option: NBR)
Sealings (wetted)
FPM/FKM (option: NBR)
Indicator case
Aluminium, EN AC–Al Si9Cu3(Fe), black painted
Window
Plastic, with plug screw for switch point adjustment
Weight
approx. 1.4 kg
Specifications
DELTA-plus, model DPG40 and
DELTA-comb, model DPGS40
Sealings (wetted)
FPM/FKM (option: NBR)
Movement
Copper alloy
Dial
Differential and working pressure indication: White
dial, black lettering
Pointer
Differential and working pressure indication: Blue
pointer
Zero point setting for
differential pressure
indication
via screw in the dial
Indicator case
Aluminium, EN AC–Al Si9Cu3(Fe), black painted
Window
Plastic, plug screw for zero point correction; plug
screw(s) for switch point setting for model DPGS40
Weight
approx. 1.3 kg
