6
Pulse Transmitter application techniques
Pulse Transmitters are connected at sprinkler heads, hose bibs, water meter bases,
re hydrants and clean-outs. Supplied Pulse Transmitter adapter kits are illustrated
later in this manual. Always ush any connection site until the water that ows is clear
of all rust, silt, sealing compounds and foreign materials before connecting a Pulse
Transmitter to the water line. If necessary clean all pipes, hoses and equipment with an
appropriate sterilising solution.
All adapter kits are supplied with a 10 foot high-pressure drain hose that must be
connected to the outlet of the Pulse Transmitter in order for the device to work
properly. Always use a weight on the hose or tie the hose down to prevent the hose
from whipping.
Check the water pressure before attempting to locate the water line and make sure that
it is in the operating range of the Pulse Transmitter, which is 3 to 10 bar (40 to 145 psi)
for the coloured brass Pulse Transmitters or up to 4 Bar for the RD500-TX electronic
Pulse Transmitter.
The Pulse Transmitters are color-coded to identify their intended usage: A color-coded
ty-wrap is used along with a small square area that is painted on the side of the Pulse
Transmitter to indicate the color. Green is the lowest power Pulse Transmitter and
is intended for use on sprinkler and hose bib pipes that typically range in diameter
between 0.5 inches and 2 inches. Green Pulse Transmitters may be may be used
on larger diameter pipes where reduced operating range is acceptable. Yellow Pulse
Transmitters are intended for use on water mains that range in diameter between 2
inches and 6 inches.They are typically connected at a water meter connection. Yellow
Pulse Transmitters should never be used on smaller diameter pipes, but they may be
used on larger diameter pipes. Red Pulse Transmitters are intended for use only on
water mains that are 6 inches in diameter or larger. The typical connection is via a re
hydrant.
The RD500-Tx electronic Pulse Transmitter is best used on domestic supplies where
the pressure does not exceed 4 Bar.
When using a Mechanical Pulse Transmitter, always start your adjustments by turning
the T-handle clockwise until full water ow is attained at the Pulse Transmitter outlet.
Then, slowly turn the T-handle counter-clockwise until the Pulse Transmitter begins
to pulse. Once the pulsing begins, turn the handle very slowly in each direction to ne
tune the pulse to a regular beat of about two to ve times per second. This adjustment
range varies between less than one turn to several turns depending on the operating
conditions. If you turn the T-handle too far in the clockwise direction, water will ow
continuously without pulsing, and if you turn the T-handle too far in the counter-
clockwise direction, water ow will stop completely.
