PCM - Pump Control Module From Stenner

How It Works

The Pump Control Module is a component of the proportional feed system, which delivers repeatable doses regardless of the system’s flow rate. The system is used in applications requiring proportional chemical injection.


The proportional feed system, Stenner refers to as the PCM system consists of three components:
• PCM – pump control module
• Single head fixed output pump (45 or 85 model)
• Dry contact water meter

The water meter sends a pulse signal to the PCM which activates the pump to deliver the desired dose based on water volume. The PCM turns on the pump for the set duration determined to inject the solution into the water line.

There are four models with different on-time duration settings that are factory preset. The PCM’s available time range can be converted to any of the four time ranges available without purchasing another PCM model. Click on Installation below for the formulas to select your PCM, pump and water meter or on Specifications for more information.

More Information
Model Numbers & Specifications
Water Meter
PCM,Pump,Control,Module,Stenner Installation
PCM,Pump,Control,Module,Stenner FAQs

Model Numbers & Specifications


Time Range                Model Number
0.1 – 1.0 Second               PCM1
0.5 – 5.0 Seconds              PCM5
1.0 – 10.0 Seconds            PCM10
2.0 – 20.0 Seconds            PCM20

Timing options are factory preset.

Microcontroller with triac output

Turndown Ratio

Polycarbonate plastic

Shipping Weight
2 lbs

Input Signal
Non-voltage dry contact, water meter

Reset Time

Minimum Signal Duration
10 milliseconds

Input Electrical
120V 60Hz

No Load Current
0.45mA AC maximum

Output Electrical
Maximum device load, 1.8 amp at 120V

Interchangeable Time Range
Located inside the PCM
(Installation for PCM Model Conversion)