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GLP
39
12. GLP
Good Laboratory Practice (GLP) refers to a quality control function used to ensure uniformity
of sensor calibrations and measurements. Press GLP/ACCEPT to open latest calibration
file. Use the
keys to scroll stored information (offset and slope values, used buffers
together with the temperature, time and date of the last calibration, calibration warnings).
This information is also included with every data log.
If the instrument has not been calibrated, blinking CAL tag and "NO CAL" message are displayed.
pHmV
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
The GLP slope percentage is referenced to the ideal slope value at 25 °C.
Additionally, for
MW151,
the electrode condition indicator displays its status after the last
calibration.
pHmV
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
Use the
keys to display the last calibration date (yyyy.mm.dd) together with the
current reading.
pHmV
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
Note:
When using custom buffers, “CUST1” and “CUST2” tags are displayed. If only one
custom buffer is used, “CUST1” is displayed together with its value. (MW151 only)