Seametrics PT35 Specifications
PT35
9 001:2008
ISO
Dual Pulse Timer
CERTIFIED COMPANY
Input Indicator Light
Bright LED Display
(visible in low light)
Test Buttons
Setting Knob
Easy-Off Cover
Meter Input Connector
FEATURES
• Single or
Dual pulse timing
• Easy set-up
APPLICATIONS
• Water treatment
• Chemical dosing
• Cooling towers
• Boilers
Pre-Wired Outputs and Power Cord
GENERAL INFORMATION
The PT35 digital counter-timer is designed to be used with
Seametrics (or similar) meters and ow sensors that produce 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 ow 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, contacting-head
meters with solid-state pickups (Seametrics MJE meters), or
insertion ow sensors (Seametrics IP, TX, and EX series).
SPECIFICATIONS*
Power
Sensor Power
Output (2)
Enclosure
Accumulator Range
Timer Range
Maximum Input Frequency
Relay Contact Rating
Temperature
*Specications subject to change • Please consult our website for current
data (www.seametrics.com).
115 Vac
12 Vdc
115 Vac
5” x 7” polycarbonate
1 - 9999 pulses
1 - 9999 seconds
1000 Hz
5 A resistive @ 115 Vac, or 1/4 HP
32˚ - 130˚ F (0˚ - 55˚ C)
Dual Pulse Timer
3"
DIMENSIONS Typical Cooling Tower Application
PT35
5.125"
Acc 1
Timer 1
PT35
Acc 2
123
Timer 2
Set
Input
Off
Test 1
PT35
Dual Pulse Timer
Test 2
On
Metering Pump
Timer
#1
Timer #2
Cooling Tower
7"
Pulse
Meter
Treatment
Chemical
Makeup Water Line
Bleed
Solenoid
3"
HOW TO ORDER
MODEL
Dual Pulse Timer = PT35
Dual Pulse Timer, Solid State Output = PT35S
CONTACT YOUR SUPPLIER
Seametrics Incorporated • 19026 72nd Avenue South • Kent, Washington 98032 • USA
(P) 253.872.0284 • (F) 253.872.0285 • 1.800.975.8153 • www.seametrics.com
LT-65650016-A
10/9/06
Loading...