- 8 -
11. LCD DISPLAY OPERATION MODES
The display can be set within one of two operating modes: economic (12:
LCDmod
= economic) or constant
(
LCDmod
= constant). In economic mode the display turns on for a few seconds after performing every
measurement while recording or can be enabled manually by pressing the "
COPY
" button. This operating
mode ensures the lowest energy consumption, which allows longer recorder operation without battery
replacement.
In constant mode, the display is constantly on and updated in the following conditions:
- measurement and write operation occurred during recording (according to 3:
MPer
parameter,
see section 7, Table 1)
- measurement occurred according to the display update period (13:
LCDupd
)
- measurement triggered by pressing the „
COPY
" button
The display update period (13:
LCDupd
parameter) allows perform measurements also when recording is
turned off. Set this parameter value over 1 min. to minimize battery energy consumption.
12. MEASSAGES AND ERRORS — LED INDICATORS
Two LED indicators localized on one side of the recorder indicate the occurrence of the following events:
READ/WRITE
: - read/write to internal storage or SD/MMC
STATUS
:
- transmission via virtual COM port (used by ARSOFT-WZ1 application, see section 7, pt 1)
- copy configuration file from SD/MMC to recorder and move files with recorded data to a
card by pressing the „
COPY”
button (see section 8)
- storage used to save recorded data in an archive file is full - short blink while trying to
save the data and the
F
W
L
L
message on the display
- battery voltage too low (below 3.15 V) - short blink during measurement output recording
and the
L
b
A
t
message on the display (additionally a record is created in the archive file,
section 9)
13. IMPORTANT OPERATIONAL NOTES
Read this user manual carefully to ensure easy usage of the product. For maximum durability of batteries
make sure that:
- measurement and recording period parameters are set to the highest possible value (above 10 min. is
recommended, parameter 3:
MPer
, Table 1)
- SD/MMC card is used only when necessary. Otherwise use internal memory
- the display is working in economic mode (parameter 12:
LCDmod
). If constant mode is required, update
period should be set to the highest possible value (above 1 min. recommended, parameter 13:
LCDupd
)
- alerts are turned off when not in use (high and low alerts should be set at bounds of the measurement
range, section 7, table 1, parameters 14:
AHiHum
,15:
ALoHum
, 16:
AHiTem
, 17:
ALoTem
)
- unnecessary files are removed from the internal memory and SD card before recording starts
In the following conditions:
- measurement and recording periods are much shorter than 10 min
- SD/MMC card is in use
- the display works in the constant mode (with measured results frequently updated)
consider using optional AC adapter, which may extend durability of batteries up to about 8 years.
Another important thing to note is that you must not disconnect the device from the computer while
communicating over USB interface - this is signaled by illumination of
READ/WRITE
and
STATUS
LED
indicators. USB communication can be defined as the act of working with mass memory device (internal
SD/MMC card) or running ARSOFT-WZ1 application.
When response from the recorder seems to be suspended remove battery for a while and check its voltage.
If that voltage is less then 3,3V then replace the battery for a new one of a proper type.
