3 Product description
11
A maximum of 10 time marks can be set. Setting a time mark
resets the statistical values
Min
,
Max
and
MKT
.
•
Acceleration
(shock): the (positive and negative) acceleration
is measured in 3 measurement axes. Only those readings that
exceed the set limit value (maximum value per 1 second) are
stored and displayed.
The acceleration readings of the 3 measurement axes are
displayed separately on the display of the data logger.
The maximum cumulative value (peak) of the 3 measurement
axes is displayed in the PDF report.
•
Report time zone
: defines the time zone to which all time
specifications in the measurement report refer. Any time zone
changes during the measurement are not taken into account.
•
MKT
(mean kinetic temperature): the MKT is a single calculated
temperature. MKT may be considered an isothermal storage
temperature. It simulates the non-isothermal effects of storage
temperature variations.
Calculation:
=
∆ /
−
∆ /
+
∆ /
+
∆ /
Tmkt = mean kinetic temperature in degrees Kelvin
∆
E = activation energy (standard value: 83.144 kJ/mol)
R = universal gas constant (0.0083144 kJ/mol)
T1 = average temperature in degrees Kelvin during the first time
period
Tn = average temperature in degrees Kelvin during the nth time
period
•
MKT activation energy
: the default activation energy is set at
83.144 kJ/mol, as recommended in USP <1160>. If other
estimates are available as a result of studies that have been
carried out, the activation energy can be customised.
•
Individual alarm
: an alarm is triggered when the set limit value
is exceeded.
•
Cumulative alarm
(only for temperature and humidity
measurement): an alarm is not triggered when the set limit
value is first exceeded, but only once the overall duration,
during which limit values are exceeded, exceeds the set waiting
period (allowed time).
•
Wall bracket
(delivery includes version G1): for the
acceleration measurement, the data logger must be
permanently connected to the object to be monitored.
Mount the wall bracket using 2 screws or 2 cable ties and then
push the data logger into the wall bracket.
Shop for Data Logging products online at:
www.
DataLoggerStore
.com
1.888.610.7664
