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11
Peak and Valley Readings
PEAK AND VALLEY READINGS
The meter examines every new reading to see if it is greater than the stored
PEAK or less than the stored VALLEY readings.
If you have unlocked access to these values with "L1C.5=0" and "L1C.6=0"
(part of the first lockout byte "L1 CNF"), you can view the PEAK ("HI RDG")
by pressing the 'MAX' button, or the VALLEY ("LO RDG") by pressing the
'MIN' button while in the run mode.
Selection of either PEAK or VALLEY causes the display to flash giving the
indication that it is NOT the current measurement value. If the meter
measures a more extreme value while displaying the PEAK or VALLEY
measurement, the new value will immediately replace the old.
Unlike the setpoint display, there is no time out period. Press the 'SETPTS'
button or 'MENU' button to return to current-value display WITHOUT
resetting the PEAK or VALLEY memory.
Press the 'RESET' button to return to run mode and start a new
PEAK/VALLEY measurement period.
The BCD option can be programmed to read the PEAK (but not the
VALLEY) instead of the current measurement (refer to Section 13).
Both PEAK and VALLEY readings (and/or a PEAK/VALLEY status summary
character) can be transmitted by the RS-232 or RS-422/485 digital
communications (refer to Section 15).
The PEAK or VALLEY value can be transmitted via the optional analog
output board (refer to Section 12).
11-1
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