AW Gear Meters MX 9000 - Manual (Page 39)

MX 9000 Process Monitor
Operation and Programming Manual
38
MX 9000 User Manual, Rev. 2.0 7/16/2013
For the RATIO WARNING limit to function, you must assign the L1 or L2 LIMIT to the WARNING function.
See LIMITS Programming on page 29.
ALARM /AB ALARM B/A
The MX 9000 uses these individual variables to set the percent ratio error at which the L1 or L2 ALARM
limit activates. The ratio error limits are 1% to 100%. The initial value for either ALARM limit is 10.0 %.
For the ratio alarm limit to function, you must assign the L1 or L2 LIMIT to the ALARM function. See
LIMITS Programming on page 29.
TARGET NBR
The MX 9000 uses this variable to set the number of pulses it samples before making and programming
a ratio. The MX 9000 uses the TARGET NUMBER for both the RATIO AB and RATIO BA calculation. The
device performs a calculation whenever either channel accumulates the TARGET NUMBER since it
calculated the previous ratio. If the TARGET NUMBER is too small, the ratio calculation can consistently
produce large errors. If the TARGET NUMBER is too large, the ratio will not be calculated frequently. The
allowable range for TARGET NUMBER is from 1 to 65534. The recommended typical range for values is
from 200 to 2000. Initial value is 500.
BATCH TOTAL Programming
Use the BATCH TOTAL program mode to quickly dedicate both limits as total limits and program the
values at which the limits (labeled S1 and S2) activate.
1. Using the UP and DOWN keys, select the BATCH TOTAL display. Press and hold the ENTER key.
The display changes the first limit assignment S1 with a underlined cursor.
2. Enter a value to assign the limit as a total limit based on the engineering units. Select the digit to
edit using the SELECT key.
3. Use UP or DOWN keys to increase or decrease the value.
4. When the desired value displays, press ENTER to store and move the cursor to S2.
5. Select the digit to edit using the SELECT key. Use UP or DOWN keys to increase or decrease the
value.
6. When the desired value is displayed, press the ENTER key to store and exit the BATCH TOTAL
program mode.
If either limit has been previously assigned to a function other than TOTAL A, the MX 9000 will respond
by asking “Limit mode different, want to change it?” Use the
YES or NO key to answer. A “YES” response
resets any previous limit assignment to Total A and zeros the limit value. A “NO” response leaves the
Notice
Notice