900 Series
This compact version in Switzer series 900 Pressure Switches using components of high reliability is specifically designed for OEMs.
The sensing element is a hydraulically formed seamless Phosphor Bronze or Stainless Steel Bellows mounted external to the weatherproof switch housing.
Models 901, 902 & 903
Phosphor Bronze / 316 LSS Bellows
Range (–)1~0 to 15~75 bar
Max. Working Pr. Up to 80 bar
Repeatability 0.5% FSR(1.0% FSR for 281)
Fixed or adjustable On-Off differential
Independent High – Low set points ( Model 281 only)
Weatherproof and Flameproof Pr Die Cast Aluminium or weatherproof Investment Cast SS enclosure
Instrument quality snap acting SPCO micro switch.One or Two as required
This compact version in Switzer series 900 Pressure Switches using components of high reliability is specifically designed for OEMs
The sensing element is a hydraulically formed seamless Phosphor Bronze or Stainless Steel Bellows mounted external to the weatherproof switch housing.
The mechanical movements are restricted to absolute minimum which ensures long term stability
Style GH Pressure Die Cast Aluminium housing is best suited for harsh and outdoor mountings.
The instrument is suitable for air, gas, water, steam, oil and several other chemicals which are compatible to Copper alloys and Stainless Steel.
General Specifications
Enclosure: Aluminium pressure die cast weatherproof to IP:66
Repeatability: ±0.5% FSR (Note 1)
Range Setting: External with lock
Ranges: Vacuum to 35 bar, several standard ranges. Refer Ordering Matrix (Note 2 & 3)
Differential: SPDT Switch (Notes 4 & 5) Fixed : within 6%
Narrowband adjustable : 6 to 20%
Wideband adjustable : 10 to 60%
2 × SPDT Switch (Notes 4, 5 & 6)
Fixed : 10%
Narrowband adj. : 10 to 20 %
Wideband Adjustable : 15 to 60%
Switching: Instrument quality snap acting microswitch.
Switch Rating: 15A, 250V AC
Sensor / Wetted Parts: Phosphor Bronze Bellows with Brass connector or 316 LSS Bellows with 316 SS connector
Process Connection: 1/4" NPT(F) standard. Adaptors for other threads optional
Maximum Fluid: 110°C for Phosphor Bronze
Temperature: Bellows, 170°C for SS Bellows(Note 7)
Ambient Temperature: re (–)10 to 60°C
Electrical Connection: 3/4" ET Nylon Cable gland for 8 mm OD cable, standard, Metallic double compression Cable Gland optional.
Mounting:On-line / Wall
Weight:600 Gms
Mounting Dimensions
