Indicating Pressure Switches

IPSH

Features


  • Combination of indicating and switch
  • Choice of electrical contacts & microswitch
  • One or Two contacts possible
  • Switch setting throughout thr range externally
  • High repeatability & low hysteresis
  • Weatherproof or flameproof housing
  • Mil connector provided optionally


  • Specifications
  • How to Order
  • Enquiry
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Specifications
Dial 100 mm / 150 mm, aluminium, white background, black markings
Case SS304 / SS316 with bayonet bezel (Weatherproof) Die Cast Aluminium (Flameproof)
Protection Weatherproof to IP - 68 (IS:13947 part I / IEC:60529) Flameproof to IIA, IIB (equivalent to NEC Cl. 1, Div. 2, Gr. C & D)
Window Safety glass
Bourdon SS316, SS316 Ti, SS316L, Monel
Socket 22 mm Square in SS 316, SS316L, SS316 Ti, Monel
Movement Brass / SS304 / SS316
Connection 1/2" NPT (M) as standard (other optional)
Range (-)1 to 1600 kg /cm2 minimum span of 4 kg/cm2 (only standard ranges as mentioned under table 6)
Accuracy ± 1% FSD for indication ± 2% FSD for switching
Over range As per EN 837
Blow out disc Provided
Zero reset Provided (Micrometer Pointer)
Temperature suitability Ambient (-)20°C to 60°C, Media 100°C
Temperature Effect Within ±0.4% FSD/10°C, when temperature changes from reference temperature of 20°C (as per EN-837 standard)
Contacts 1SPST, single, normally open, closing on rise in pressure or vice versa, rated 30VA @ 230V AC

2 SPST, two contacts, independently adjustable, one normally open, other normally closed or both normally open or both normally closed, rated 30VA @ 230V AC

1SPDT, single microswitch, adjustable over entire range, rated 5 amp @ 230V AC (3A @ 28 VDC)

2SPDT, double microswitch, independently adjustable over entire range, rated 5 amp @ 230V AC (3A @ 28 VDC)
Optional Relay for the contact assembly to suit 5 amp @ 230V AC, separately mounted.

Gauge Bar, kg/cm2 Least count
Compound (-)1 to 3 0.10

(-) 1 to 5 0.10

(-)1 to 9 0.20

(-)1 to 15 0.50

(-)1 to 24 0.50

(-)1 to 39 1.0
Pressure Gauge ('C' shaped Bourdon) 0 to 4 0.10

0 to 6 0.10

0 to 10 0.20

0 to 16 0.50

0 to 25 0.50

0 to 40 1.0

0 to 60 1.0

0 to 100 2.0
Pressure Gauge Coil type Bourdon 0 to 160 5.0

0 to 250 5.0

0 to 400 10.0

0 to 600 10.0

0 to 800 20.0

0 to 1000 20.0

0 to 1600 50.0





Benefits of Microswitch type over contact assembly:-
Notes:-

Microswitch is rated 5 amp @ 230 VAC (3A @ 28 VDC). Hence use of relay is not required
1) Electrical contact assembly is not offered in flameproof version.

Microswitch offered as a combination of movement and switch is procured from Internationally reputed vendor
2) Flameproof version available only in diecast aluminium case

Microswitch assembly provides better switching accuracy and repeatability
3) Flameproof version available with bottom entry surface mounting only

Compact design
4) Pressure switch can also be offered with chemical seal in weatherproof and flameproof cases



5) Surface mounted flameproof housing with chemical seal pressure gauge is available with capillary



6) Blow out disc not applicable for flameproof case