a pulse signal. It is typically used in water treatment and chemical dosing applications, most often in cooling towers 
and boilers. The PT35 serves as either a single or a dual timer, depending on whether one or both of its independent 
accumulators and timers are used.
When the PT35 is used as a single timer, the accumulator counts the pulses coming from the meter. When a pre-set 
number of pulses has been reached, output power turns on for a set time, and then the cycle repeats.
For applications requiring dual timers (typically, one chemical feed and one water bleed), both accumulators and timers 
are set to operate independently, even though input is from a single meter or fow sensor. A sequential function can be 
selected to lock one timer out while the other is operating. This prevents feed and bleed from occurring simultaneously.

The PT35 can be used with dry contact meters, contact-ing-head meters with solid-state pickups (Seametrics MJE 
meters), or insertion fow sensors (Seametrics IP, TX, and EX series).

FEATURES
• Single or 
Dual pulse timing
• Easy set-up

APPLICATIONS
• Water treatment
• Chemical dosing
• Cooling towers
• Boilers