CONTROLLERS
Model RMI
Model RMI is a remote manual-control station with a toggle switch used to either increase or decrease the capacity
setting of the pump. The control panel is equipped with a meter that indicates the output of the pump as a percent of
stroke. See Figure 7 for wiring details, size, and other information.
Model PRRA
This controller is a bridge balancing relay with ratio adjustment for automatic control of pump from a process instrument
that has a transmitting potentiometer. See Figure 8 for wiring details and mounting information.
Model PRRA-MA
This model is a proportioning bridge relay with ratio adjustment for automatic control of pump from a process instrument
that has DC milliamp output. The milliamp rating of this unit must agree with the DC input signal being applied. Wiring
details are shown in Figure 9.
Model AMI
Model A MI has a meter indicating pump delivery as a percent of stroke. It combines the features of the RMI model with
the features of the PRRA model. The manual-off-auto switch allows either manual or automatic operation. The wiring
diagram is shown in Figure 10.
Model AMI-MA
This unit is also an automatic-manual controller like the AMI, but it combines the automatic function of the PRRA-MA
(milliamp input signal) with the RMI manual function. See Figure 11 for wiring and installation details.
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