Manual de instrucciones de Honeywell L91B

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l Wiper on the controller potentiometer moves in response to
pressure changes.
Honeywell
l L91 D has 2 potentiometers for unison control of 2 motors.
l L91F has a fixed resistor and a manually-adjusted trim
potentiometer in series with the controller potentiometer; for
L91 PROPORTIONING
special applications in electronic bridge circuits.
PRESSURETROLCONTROLLERS
l LSlB,D, and F models have an adjustable proportioning
(throttling) range to allow selection of desired pressure control
L91 PROPORTION

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FINISH: Gray. MAIN SCALEPLATE: Marked in both customary Hg) and Metric or mm Hg) units. PROPORTIONING RANGE SCALEPlATE and F only): ADJUSTING SCREW CONTROLLER (L91B.D.F.ONLY) POTENTIOMETER(S) Table Ill for the value of each division.) MAIN SCALE MOUNTING MEANS: Fitting on bellows has NPT threads IM POTENTIOMETER ADJUSTING JUSTING SCREW (external on 0 to 16 0 to 4 psi, and 0 to 15 psi models; POTENTIOMETER NOTE: Some models are available with BSP-TR internal threads: see Table WIPER A