Seametrics PT32 Instructions

General Information
PT32 and PT33 pulse timers are designed for use with
SeaMetrics (or similar) meters and flow sensors which
produce a pulse signal. They can control metering
pumps or valves in a variety of cooling tower, boiler and
other water treatment applications. These units include
accumulators, which count pulses from the meter. When
a preset number has been reached, output power turns
on for a set time and then the cycle repeats.
For applications requiring dual timers (typically one for
feed and one for bleed), the PT33 has two timers and
accumulators in one enclosure. Input is from one meter,
but the accumulators and timers are set independently
of each other. A sequential feature locks one timer out
while the other is operating, to prevent bleed and feed
from occurring simultaneously.
Power switch
and indicator
Input and
Output Indicators
Output test and
Accumulator reset
button
Internal 5 Amp
replaceable fuse
behind panel
Power input cord
(6' length)
A 12 VDC low-current meter loop is a standard feature.
This can be used with brass pulse meters, as well as
most of the SeaMetrics line of insertion, turbine, and
low-flow meters. Both dry-contact reed switch and solid-
state Hall-effect sensor signals are accepted.
Specifications
Power
Accumulator Range
Timer Range
Enclosure
Max Input Frequency 500Hz (500 pulses/sec.)
Relay Contact Rating 5 A resistive at 115 VAC
Sensor Power
PT32 Features
OFF ON
COUNTS
1
A
2 Setting equals the
C 4
sum of the
8
C switches turned "ON".
16
U
32
INPUT
64
M
This switch "ON"
multiplies by 10
OUTPUT
OFF ON
TEST
1
T
2
Output time equals
I 4
the sum of the
8
M
switches turned "ON".
16
E
32
PT32
R 64
This switch "ON"
multiplies by 10
ACCUMULATOR - TIMER
SECONDS
PT32 Single Pulse Timer
PT33 Dual Pulse Timer
Instructions
115 VAC
1 - 1270 counts
1 - 1270 seconds (21 min.)
Glass-filled polycarbonate,
PT32 5" X 5"
PT33 5" X 7"
25 mA at 12 VDC nominal
Accumulator
setting switches
Cover screws
and box mounting
screw holes
Three pin SeaMetrics connector
standard, strain relief optional
(order matching connector
with meter)
Timer output
cord (7" length)
Timer setting
switches
PUB -19125-1000
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