Azbil MagneW Neo PLUS, User Manual

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Operation using the data setting device Azbil Corporation
5-56 Model MTG11A/18A, MTG11B/18B, MTG14C
5-6-11 : Setting low flow cutoff
This function is used to set the low flow cutoff value. When the flow rate reaches the
entered value, the analog output is cut off and latched to 4 mA (display flow rate of
0%) to avoid errors due to flow pulsation in range value close to zero.
Also, for reverse flow rate the output is latched to 4 mA (display flow rate of 0%)
The lower limit of the low flow cutoff setting is determined by the velocity range.
1. If the velocity range exceeds 3 m/s, the lower limit value is 1%.
2. If the flow velocity range is 3 m/s or less, the lower limit value will be the value
that cut the flow velocity of 0.03 m/s or less flow rate.
Example: If the flow velocity range is set as 2 m/s, the lower limit of the low
flow cutoff value is 1.5%. (= 0.03/2 = 0.015 = 1.5%)
Setting range: 1 to 10%
Default: Depends on the velocity range.
Set low flow cut in accordance with the following procedure:
Step Procedure Screen
1 Enter ENGINEERING MODE in accordance with
the entry into ENGINEERING MODE (see
section 5-5-9 on page 5-36). Then press the or
key to display the screen at right.
2 Press the key.
The cursor then moves to the position of the low
flow cut value.
3 Using the or key, change the value to a desired
value to be set.
4 Press the key to move the cursor to the position
under #.
Press the MODE key to return to MEASURING
MODE and to save data.
m
CAUTION
You have only ten minutes to return to MEASURING MODE to save the new value before
the system resets it to the previously saved value.
12.3 %
# LOW-FLOW CUT
02 %
12.3 %
# LOW-FLOW CUT
02 %
12.3 %
# LOW-FLOW CUT
05 %
12.3 %
# LOW-FLOW CUT
05 %
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