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GMC-I Messtechnik GmbH
8.2
Saving Measured Values
The METRA HIT
⏐
27EX
provides two entirely different
options for storing data:
•
Messwertspeicherung – Tastenfunktion DATA:
Measured Value Memory – DATA Key Function:
Each time a measuring point is contacted, a measured
value is stored in accordance with a defined condition
(see chapter 6.1 and chapter 8.2.1).
•
Memory Mode Operation – STORE Menu Function:
After activating the STORE menu function, all mea-
sured values are saved in accordance with the
selected sampling rate. Memory mode operation is
ended manually using the same menu function.
In both cases, saved measured values can be read out
with the help of METRAwin
10 PC software (as of version
5.22). However, read-out is only possible if a BD232 IR
adapter has been plugged into the METRA HIT
⏐
27EX
and
connected to the PC with an interface cable.
8.2.1
Memory Mode – DATA Key Function (see also chapter 6.1)
The instrument is equipped with a measured value
memory (32 kB) which is synchronized with a quartz
movement, and has an average capacity of 1000
measured values. Minimum capacity is 800 measured
values and maximum capacity is 1200 measured values.
Data are stored and can be transmitted directly to a PC
with the METRAwin
10 software. Date and time must be
reset if the batteries are depleted and/or replaced.
Measured values are stored in so-called blocks. Measured
values resulting from the same measuring function are
saved to the same block.
Only absolute values and absolute time stamps can be
saved, i.e. no relative or
Δ
values, and no relative time
stamps.
Memory content can only be read out with the help of a
PC, an IR adapter (BD232), and METRAwin
10 analysis
software.
Stored measurement data blocks are retained even if the
instrument is without voltage supply.
Vorbereitungen für den Speicherbetrieb
Preparing for Memory Mode Operation
➭
First set the
sampling rate
for memory mode operation,
and then start memory mode operation.
The sampling rate can also be changed during mem-
ory mode operation.
➭
First select the desired measuring function and an ap-
propriate measuring range.
➭
Check the battery voltage level before starting long-
term measurement recordings (see chapter 10.1 on
page 30).