Controlair Type Transducer
Fairchild Type Transducer
Flowserve Type TransducerPower And Energy Management
Combustion air dampers, louvers and steam valves all move on air, and all of them take their orders from an electrical control system. The Type 1000 application list names damper and louver actuators and energy management systems directly.
What Makes This Application Difficult
Dampers need flow, not just pressure
A large louver drive will not move at the speed the combustion control expects unless the transducer behind it can pass the air.
Fast release is sometimes required
Some drives have to blow down quickly, which an ordinary 2 SCFM exhaust will not do.
Ambient temperature swings
An instrument mounted near a boiler front sees a temperature range that will move an uncompensated output.
Split range control of two elements
One signal often has to drive two devices across different parts of its range.
How The Range Addresses It
The T1000 general purpose build passes 12 SCFM (339 SLPM) and the extended range build 24 SCFM (677 SLPM). The high relief build raises exhaust capacity to 7 SCFM (336 SLPM) for fast blowdown on cylinder returns and hoists. Temperature compensation is built in on the force balance instruments through a thermistor in series with the coil, and split range operation is catalogued on the T1000 and the T7800.
Products For This Industry
Marsh Bellofram Type TransducerT1000 Electro Pneumatic Transducer
Force balance I/P transducer with a built-in volume booster, four build classes
View specifications →
Fairchild Type TransducerT6000 Electro Pneumatic Transducer
Modular precision transducer, six input and six output ranges, conduit termination
View specifications →
Fairchild Type TransducerT7800 Electro Pneumatic Transducer
Piezoelectric precision transducer, 0.25% full scale accuracy, NEMA 4X and IP65
View specifications →
EPC Type TransducerEPC1000 Electro Pneumatic Transducer
Direct moving E/P converter with a power amplifying relay, EAA's own EPC pattern
View specifications →Questions From Power And Energy Management Buyers
Which transducer passes the most air
The T1000 extended range build, at 24 SCFM (677 SLPM) at midrange on a 150 psig (10.4 BAR) supply.
We need fast exhaust on a cylinder return
The T1000 high relief build exhausts 7 SCFM (336 SLPM) at 5 psig above setpoint, against 2 SCFM on the general purpose build.
Can one 4-20 mA signal drive two devices
Yes. The T1000 3-15 psig model can be recalibrated to 3-9 psig or 9-15 psig for split ranging, and split range operation is a listed feature of the T7800 series.
Get A Recommendation For Your Power Loop
Describe the loop, the actuator and the area classification, and we will name the models that fit and the ones that do not.