General Specifications
Trip repeatability: 1.4 barg to 8.75 barg (20 psig to 125 psig) Standard operating media: Air/gas
-20 to 60°C (0 to 145°F)
-20 to 400°C (0 to 750°F)
Trip repeatability: 0.25% of sensed pressure range
Deadband between trip and reset: Minimum 0.5% of sensed pressure range
Difference between high and low setpoints: Minimum 0.7 barg (10 psig) plus 5% of sensed pressure range
Supply pressure effect on trip repeatability: None
Required number of trips (actual or simulated) per month to assure performance: Not required
Setpoint shift: With overpressure within specified limits: None
With time, per year: None
Nominal accuracy of process pressure gauge: 1% of full scale
Setpoint dials: (50 or 60) division = 100% operating pressure range) Repeatability returning to a marked setpoint after moving the dial: 1% or better
Standard unit in active range: 12 bubble/min. typical at 3.5barg (50 psig) input supply pressure/.037 barg (1.5 in. water column)
In tripped state at 1.6 barg (23 psig) supply: 0.00043 nm3/min (0.016 scfm)
In tripped state with manual reset, per trip event: Volume of tubes and devices connected to output, plus approximately 0.5 liter (1 pint)
Metal parts in contact with process: All 316 stainless steel
Metal parts, structural and mechanical: All 300 series stainless steel
Metal parts, pressure gauges: All 300 series stainless steel
Elastomer seals: Viton, no seals in contact with process fluid
Sliding seals: None
Four (4) 1/4" npt female, facing to the rear of all standard units
None required
Same as for precision chart recorders
One (1) common small parts kit
Technical Specifications & Features