YZ Systems DynaPak DP-2020N Manual page 13

8. Sampler Set-Up
8.5 Span calibration:
Mode #3 (5.00VDC @ 100% of metered flow)
The span calibration adjustment is used to calibrate the
Z-200 controller for 100% of metered flow in the pipeline
(5VDC). The Z-200 controller is calibrated at the factory for
100% flow to directly correspond to 5.00VDC at the flow
input terminals #4, #5.
To set the span calibration:
1. Set the mode switch to postion #3.
2. Apply 5.00VDC to the terminal strip terminal #4 (+signal
input); terminal #5 (-signal input)
(if a DPT is being used, output from the transmitter should
be 5.00VDC @ maximum range of meter. Ex.: 5.00 VDC @
100" (254 cm) water differential pressure).
3. Depress the enter switch to load the span setting into
memory.
NOTE: the green LED will flash if entry is accepted; the red
LED will flash if not accepted.
NOTE: for maximum accuracy, after setting the span, return
to zero calibration section and repeat both zero and span
procedures in that order.
8.6 Initial percentage flow:
(XX.X%) Mode #2 Default 50.0%
The initial percentage flow shoud be set by the operator to
the typical or average % of metered flow that exists in the
pipeline. This should be based upon historical flow
measurement records from the metering device being
used. If the history is not known, use an anticipated value.
To set initial percentage flow:
1. Set the mode switch to position #2.
2. Set the data switches to the desired % of flow X.XX%.
Ex.: 50% = 50.0
3. Depress the enter switch to load the value into memory.
NOTE: the green LED will flash if entry is accepted; the red
LED will flash if not accepted.
YZ Systems, Inc. • 3101
DynaPak 2020N 09242003 ATEX Rev.
Pollok Drive • Conroe, Texas
Factory
Mutual
System
Approved
Factory
Mutual
System
Approved
• USA • 77303 • P: 936.788.5593 • F: 936.788.5720
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