Ross Controls TRANSDUCERS - Manual

26 © 2011, ROSS CONTROLS. All Rights Reserved.
Pressure Switches
Gauge Shut-Off
Three Function Transducer with Integral Pressure Switch and Digital Gauge
• 3 to 150 psi (0.2 to 10.3 bar)pressure range (adjustable)
• 475 psi (37.8 bar) maximum pressure
• High shock resistance & set point stability
• SPDT double break contacts
• NEMA 4, 13 enclosure
• Diaphragm actuated
• Non-adjustable differential
• Numerical range scale window
• UL and CSA listed
• Indicator light
• 5 pin mini-connector
Junction Box
Model Number 112H74 Model Number 608F94
Model Number 911H30
Pressure setpoint range
Overpressure limit
Burst pressure
Port connection
Supply voltage
Status indicators
Outputs
Switch point accuracy
Programmable switch delay
Repeatability
Wetted parts
Protection rating
Electrical connections
7.5 to 150 psi (0.5 to 10.3 bar)
700 psi (48.3 bar)
2000 psi (137.9 bar)
1/4 NPT female
18 to 30 volts DC
1 red LED: switched output status, 3 numeric LEDs: system pressure
Programmable NO or NC (with window function) & 4–20 mA output
+ 1.5% of full range
0 to 50 seconds
+ 0.25% of full range
304 stainless steel, ceramic cell, Viton O-ring
NEMA 3, 4, 12, 13, IP65
Quick disconnect MICRO DC type
1/4” NPT female
1/4” NPT male
• Allows gauge installation without system shutdown
• Male-female ported for compact installation
• Nickel plated brass construction
• Rated to 250 psi (17.2 bar)
• 6” x 10” X 4” deep
• 20 pre-mounted terminals
• NEMA 12 construction
*Specify voltage when ordering.
1/4” NPT Female inlet
Single Function Unit – Transducer Only: 935H30
5 Meter Cord: 936H30
• May be installed on all L-O-X ® valves with pressure sensing port
• Provides a means to verify the release of downstream pressure to next obstruction
Visual Pop-Up Indicator or Pressure Switch (electrical)
Verification Option Model Number Inlet Port Size*
Pop-Up Indicator 988A30 1/8
Pressure Switch 586A86 1/8
* Pressure sensing port threads are NPT on all L-O-X ® valves models. (including BSPP)
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Accessories
Model Number
717H30* (NPT)
D717H30* (BSPP)