Milwaukee MW150, Инструкция по эксплуатации

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24 MW150 & MW151 Bench Meters
7.4. WARNINGS & MESSAGES
The Calibration Check feature flags diagnostic messages during a calibration. As electrode
aging is usually a slow process, differences between previous calibrations are likely due
to a temporary problem with the probe or buffers.
Wrong Buffer
“Wrong buffer“ message is displayed blinking when the difference between the pH
reading and the value of the selected buffer is too big. If this error message is displayed,
check if you have selected and used the correct calibration buffer.
pH mV
NO MTC ATC
USB
OPEN
AUTO
HOLD
SLOPE
CLEAR
CAL
1.68
4.01
6.86
7.01
9.18
10.01
12.45
CUST1
CUST2
DATE
ACCEPT
ºC
ºF
pH
mV
TIME
Wrong Old Points Inconsistency
“WRONG OLD POINTS INCONSISTENT” is displayed if the new calibration value differs
significantly from the last value of that probe in that buffer. Clear the previous calibration
and attempt a new calibration with fresh buffers.
To clear calibration information, press CAL/EDIT then press LOG/CLEAR (MEM/CLEAR).
The “CLEAR CAL” message will be displayed. Press the GLP/ACCEPT to confirm or press
CAL/ EDIT to exit without clearing. The probe may retain a single point calibration if the
first point was accepted.
Once calibration information is cleared, the message “NO CAL” will be displayed.
pH mV
NO MTC ATC
USB
OPEN
AUTO
HOLD
SLOPE
CLEAR
CAL
1.68
4.01
6.86
7.01
9.18
10.01
12.45
CUST1
CUST2
DATE
ACCEPT
ºC
ºF
pH
mV
TIME
pH mV
NO MTC ATC
USB
OPEN
AUTO
HOLD
SLOPE
CLEAR
CAL
1.68
4.01
6.86
7.01
9.18
10.01
12.45
CUST1
CUST2
DATE
ACCEPT
ºC
ºF
pH
mV
TIME
pH mV
NO MTC ATC
USB
OPEN
AUTO
HOLD
SLOPE
CLEAR
CAL
1.68
4.01
6.86
7.01
9.18
10.01
12.45
CUST1
CUST2
DATE
ACCEPT
ºC
ºF
pH
mV
TIME
Clean Electrode
“CLEAN ELEC” indicates poor electrode performance (the offset is out of the accepted
window, or the slope is under the accepted lower limit). Clean the probe to improve
response time. See pH Electrode Conditioning and Maintenance for details.