3.5 Switch On/Off, Reinitialisation
For
switching on
the instrument, the ON/OFF push button (1) must be
pressed. If the power supply unit is properly connected the green control lamp
in the push button will be illuminated.
The device can be
switched off
by operating the push button once again. The
control lamp will no longer be illuminated (not with option A, see 3.2). However,
the real time clock continues operating and, due to the buffering rechargeable
battery, all stored values remain available (see 3.5).
If the device shows an irregular behaviour due to interference influences (e.g.
electrostatic charging or discharged buffering battery) or if incorrect
programming must be avoided, the device can be completely reinitialised.
The reset can be achieved if the key STOP is pressed during switch-on. All
internal data such as max, min and average values, and the data memory will
be cleared. Furthermore, cycles, time, date and device address are set to zero
and the conversion rate and atmospheric pressure will be set to their default
setting. However, the device configuration and the sensor programming within
the ALMEMO
®
connectors will not be affected by the reset.
4. CONNECTION OF THE TRANSDUCERS
Any ALMEMO
®
sensors can be connected to the ALMEMO
®
input sockets 0 to
8 of the measuring instrument (3). For connecting existing sensors it is only
necessary to connect a corresponding ALMEMO
®
connector.
4.1 Transducer
s
A detailed description of the comprehensive ALMEMO
®
sensor range (see
manual section 3) and the connection of existing sensors (see manual section
4) to the ALMEMO
®
instruments are provided in the ALMEMO
®
manual. All
standard sensors with ALMEMO
®
connector usually have the measuring range
and dimension already programmed and can be immediately connected to any
input socket. A mechanical coding ensures that sensor and output modules
can only be connected to the correct sockets. Furthermore, each ALMEMO
®
connector has two locking levers that snap in when the insertion into the socket
is established and that prevent a disconnection caused by pulling the cable.
Both levers must be pressed on the sides for disconnecting the connector.
The programming of the sensor connectors
can, with ALMEMO
8990-8
data loggers, only be modified by using the serial interface (see manual section
6). This can be carried out by using the PC and the configuration software
AMR-Control or any terminal application (e.g. Windows Terminal) and using
very easy commands. Due to the data storage within the connector, it is also
possible to perform the programming with hand-held instruments of the series
12
ALMEMO
®
8990-8
Connection of the Transducers
