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Honeywell MS7103 Bedienungsanleitung Seite 3

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3 NM SERIES SPRING RETURN DIRECT COUPLED ACTUATORS
TYPICAL SPECIFICATION
Spring return actuators shall be direct coupled type requiring
neither crankarm nor linkage and be capable of direct mounting
to a jackshaft of up to 3/4 in. diameter. The actuator shall
connect to the shaft using a removable output hub with a self-
centering shaft coupling. This coupling shall provide concentric
mounting and include an integral adjustable range-stop
mechanism.
The actuator shall provide floating and proportional control.
Proportional control refers to direct acceptance of 0-10 VDC, 2-
10 VDC, or (with addition of a 500 ohm resistor) a 4-20 mA input
signal. Some proportional and floating control models shall
provide a feedback signal. Floating actuators shall have a rota-
tion direction control switch accessible on the cover.
All spring return actuators must be designed for either clock-
wise
or
counterclockwise
fail-safe
operation
with
a
continuously engaged mechanical spring. This spring must
return the valve or actuator to a fail-safe position within 25
seconds of power loss.
All actuators shall be designed for a minimum of 60,000 full-
stroke cycles at rated torque and temperature, 60,000 spring
return cycles and 1,500,000 repositions. Run time shall be con-
stant and independent of: load, temperature, and supply
voltage (within specifications). All actuators shall be UL60730
and cUL (CSA22.2) listed, have a five year warranty, and be
manufactured under ISO 9001 International Quality Control
Standards. Actuators shall be as manufactured by Honeywell.
3
31-00137M—01

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Diese Anleitung auch für:

Ms7503