Worcester controls – Flowserve I90 Series User Manual
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M.A.S. Model: The M.A.S. product code is marked on the nameplate
as the M.A.S. model number, with the exception of the voltage rating
(if any) and Product Revision Level (R#). Voltage rating and R# are
marked in separate locations on the nameplate.
Example: 20 P L90 S M2 P 4 T3293
The Product Code is Composed of:
Size . . . . . . . . . . . . . . . . . . . . . . . .Size of actuator (10, 15, 20, etc.)
to which the M.A.S. will be
mounted. Will be blank if unknown.
Product Options . . . . . . . . . . . . . . .See Available Options.
Product Series . . . . . . . . . . . . . . .I90 – Loop-Powered
Intrinsically Safe
L90 – Loop-Powered Non-
Intrinsically Safe
Action . . . . . . . . . . . . . . . . . . . . . .S – Single-Acting Manifold Block
Switch Options . . . . . . . . . . . . . . .See Available Options.
Circuit Board . . . . . . . . . . . . . . . . .P – Positioner Circuitry
Input Signal . . . . . . . . . . . . . . . . .4 – 4 to 20 milliamp Input Signal
Custom Product No. (if special) . . .P#, T#, C# or similar #
Available Options:
Order Codes and Descriptions
B – Breather/Drain Fitting
P – 5000/1000 ohm Dual Potentiometer
5 – 5000/5000 ohm Dual Potentiometer
4 – 4-20 milliamp Output Transmitter (5000/1000 ohm
Dual Potentiometer Included)
M2 – 2 SPDT Mechanical Switches
Notes: All units are single-acting (spring-return) positioners with 4 to 20
milliamp input signal. Double-acting solenoids, "controller" function, and
other input signals are not available.
P, 5 AND 4 OPTIONS CANNOT BE COMBINED IN ONE POSITIONER.
WCAIM2053
Pulsair Loop-Powered Positioner Modular Accessory System (Series I90/L90)
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Flow Control Division
Worcester Controls