Explosion proof type differential pressure switch
Type: P970
 
Service intended
 
P970 diaphragm type differential pressure switch can be used in a variety of process lines. Internal micro switch is operated by pressure of various fluids, such as atmospheric pressure and water pressure. The pressure sensing part is a force balanced and piston actuated assembly.
 
Fluid
 
Gas and oil
 
Repeatability
 
±1.0 % of adjustable range
 
Adjustable range (mbar, kPa, bar, MPa)
 
15 kPa to 0.4 MPa
 
Dead band
 
Fixed
One SPDT : Approx. 5 % of adjustable range
Two SPDT : Approx. 10 % of adjustable range
 
Working temperature
 
Ambient : -40 ~ 65 °C
Fluid : Max. 100 °C
 
Static pressure
 
Max. 0.2, 5 MPa
 
Degree of protection
 
EN60529/IEC529/IP65
 
 
Standard features
 
Pressure connection
 
Stainless steel (316SS)
316L SS, Monel and Hastelloy-C
 
Element
 
Stainless steel (316L SS)
Monel, Hastelloy-C
Viton (Up to 4 kPa adjustable range)
 
Case and cover
 
ALDC 12.1
Silver gray painted aluminium
 
Process connection
 
¼" NPT (F)
 
Contact
 
Micro contact type
One SPDT (P970-1B3)
Two SPDT (P970-2B3) (Only available with single setpoint)
 
Contact rating
 
SPDT contact rating
AC 125 V / 250 V, 15 A
DC 125 V, 0.4 A for resistance load
DC 125V, 0.03 A for inductive load
 
Conduit connection
 
¾" NPT (F)
 
Certificates
 
KCS Ex d IIC T6
ATEX II 2G Ex d IIC T6 Gb
IECEx Ex d IIC T6 Gb
 
 
Download:  CATALOG