Seametrics FT415 - Manual (Page 2)

Installation
To mount the FT415W on a wall, hold the unit in the
desired position, mark the holes in the mounting feet,
drill, and mount with screws.
This unit can also be mounted directly on a flow sensor
for local reading. Note that the FT415 requires the
optional micropower sensor, in order to conserve bat-
tery life. For loop or other external power, the FT420 is
recommended, and can be installed on any standard
sensor.
If the unit was ordered as an FT415M, factory mounted
to the top of a 100 or 200 Series flow sensor, no further
installation is required.
To mount the unit on a flow sensor, an MK10 mounting
kit is required. Then remove the housing cover. Place
the lower half of the housing in the groove on the top of
the flow sensor. An adapter from the kit is included in
the lower housing, which threads into the top of any 80-
Series flow sensor. Pull the sensor wires through the
hole in the center of this adapter, then thread the adapter
into place. Tighten the adapter using a screwdriver. (See
diagram). Connect the wires, then replace the housing
cover, orienting it any direction as desired for viewing
convenience.
Connection
To connect to the FT415 to a flow sensor, follow the
diagram marked “Connections”. This diagram also
shows the connections for an external device, such as
a chemical metering pump.
At a minimum, every FT415 must be programmed with
the “K-factor”. This is simply the number of pulses per
gallon which the meter or flow sensor produces. (If you
wish the FT415 to read in another unit, enter the num-
ber of pulses per that unit. For example, if the desired
units are liters, the K-factor is the number of pulses per
liter that the flow sensor produces.)
To find the K-factor on any SeaMetrics flow sensor fit-
ting or in-line meter, look on the model-serial label. The
line reading K = xxxx is the desired number. For adjust-
able sensors (101,201,115,215) look in the instruction
manual under your pipe size.
Set K. Begin by pressing the key SET once. The prompt
SET K should appear on the display. The digit to the far
right will be blinking. Use the up arrow key to reach
your desired digit. Then press the left arrow key to move
to the next digit. Repeat the process until the entire num-
ber is entered. (Note that the decimal is fixed at three
places. If you only have two decimal places for your K-
factor, enter a zero for the third digit.)
Set P. If the pulse output is to be used, set the desired
pulse rate. Note: If the pulse output feature is not
being used, this step can be skipped. The P (pulse
output) setting does not affect anything if it is not
being used. This is the number of gallons (or other
units, if you are using them) between pulses. The sec-
ond time the SET key is pressed, SET P will appear.
Follow the same process as above to enter the desired
number.
Pressing all three buttons at once will put the unit into
low alarm. Pressing all three again will put the unit into
high alarm.
Press the ARROW LEFT and ARROW UP
keys to set the flow rate at which you want to have the
output pulse switch on.
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!
Caution: If pulse output is being
used to control an external device,
such as a metering pump, do not
connect the pulsed device until pro-
gramming is completed. If malfunc-
tion or incorrect programming of the pulse output
could cause personal injury or property damage,
separate safeguards must be installed to prevent
such injury or damage.
Chemical
FT415
on TX81
Control Pulses
Flow
Proportional
Chemical
Programming
AR
CH
IVE
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