Dynasonics 901 Series Enhanced Ultrasonic Flow Meter - Manual (Page 10)

Rev. 04/02
-9- D901/M
PART 2 - PRE-INSTALLATION CHECKOUT
After unpacking, it is recommended to save the shipping
carton and packing materials in case the instrument is
stored or re-shipped. Inspect the equipment and carton
for damage. If there is evidence of shipping damage,
notify the carrier immediately.
The D901/M flow meter can be checked for basic
functionality using the following Bench Test procedure.
It is recommended that this operation be performed
before installing the transducers or transmitter
permanently.
Procedure:
1. Open the D901/M transmitter enclosure and the inner
display door.
2. Connect the transducer cable terminals to the
corresponding terminal block locations within the
transmitter. See Figure 3.
3. Set the transmitter SENSITIVITY control [located on
the display door] to -2.
4. Apply power.
5. Hold the transducers, the flat sides facing each other,
approximately 6-8 inches [150-200 mm] apart.
6. Move the transducers towards and away from each
other 1 inch [25mm] for several cycles at
approximately 1 second interval.
7. If unit is functioning properly, the READ LED will
illuminate and the rate display will indicate flow
readings.
Bench Test is Complete
Unpacking
Functional Test
Figure 3