MAN0063
Mechanical Installation
The J-TEC HBM453 has two pieces, the Handheld Display and the Flow Meter.
To operate, attach the cable from the Handheld Display to the Flow Meter (the cable must be con-
nected in order for the system to function).
A typical connection to the Flow Meter is made by placing
flexible
hose onto the outside of the inlet
tube and outlet tube. The labeling of the
flow
direction on the Flow Meter must be aligned with the
flow
in the tube. The Flow Meter should be installed with a minimum of 12 inches of straight tube
upstream. This condition provides a more symmetrical
flow
profile,
which is necessary to obtain
accurate and repeatable results.
If liquids are present in the gas
flow
stream, the Flow Meter should be installed so that liquids will
not collect on the ultrasonic transducers in the tube. Installing the Flow Meter vertical with
flow
into
the top and out the bottom will encourage liquids to drain out of the Flow Meter.
The Flow Meter and interconnecting cable should be positioned at least 12 inches away from any
ignition wires or fuel injector component to avoid noise interference.
Operation
With the cable attached from the Handheld Display to the Flow Meter, turn on power by cycling the
switch to the “1” position (the “0” position on the power switch is OFF).
The display on the Handheld will show “J-TEC HBM453”
briefly
then display 0.0 and Acfm (actual
cubic feet per minute), if there is no
flow
through the Flow Meter.
Install the Flow Meter, with at least 12 inches of upstream tubing, onto the desired device to measure
flo
w. Ensure the arrow on the Flow Meter is aligned with the direction of the
flow
stream.
Power remains on until the power switch is cycled to the OFF position (“0” on the switch).
Cleaning and Maintenance
The inside of the
flow
tube and strut must be kept clean. If the meter produces erratic readings a
cleaning schedule should be implemented. To clean the
flow
tube and strut, gently brush the inside
of the tube with a soft brush or cotton swab. A solution of a mild detergent and water may be used
to loosen deposits. Ensure detergent is rinsed away and the inside of the
flow
tube is dry before
use.
DO NOT use wire brushes or high-pressure liquids. These may cause damage to the transduc-
ers.
Troubleshooting
No Display: Are batteries installed correctly and fully seated?
Are batteries fresh or completely recharged?
Is the Flow Meter connected to the Handheld Display?
Erratic readings: Ensure there is no blockage in Flow Meter
flow
tube.
Ensure there is not
excessive
condensate in
flow
tube.
Ensure Flow Meter and/or cable is at least 12 inches away
from any ignition wiring or other electrical wiring.
5005 Blairs Forest Lane NE, Suite L • Cedar Rapids, IA 52402
phone 319-393-5200 • fax 319-393-52
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