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5. INTRODUCTION
The ALMEMO
®
2790 series is a new member in our family of unique measuring
devices - all equipped with Ahlborn's patented ALMEMO
systems incorporate a wireless Bluetooth module and, via the Bluetooth sensor
module included in delivery, provide a wireless link to a further ALMEMO
suring instrument or data logger. The intelligent ALMEMO
ve advantages when connecting sensors and peripherals because all parame-
ters are stored in an EEPROM located in the plug itself; repeat programming is
thus no longer necessary.
All sensors can be connected to all ALMEMO
same way (except D7 sensors). Programming and functioning are identical for
all units. The following points apply to all devices in the ALMEMO
system; these are described in detail in the ALMEMO
ded in delivery with each device.
Detailed explanation of the ALMEMO
Overview of the device functions and measuring quantities and ranges (Man., Chap. 2)
Basic principles, operating instructions, and technical data for all sensors (Man., Chap. 3)
Options for connecting your own existing sensors (Man., Chap. 4)
USB interface modules (Man., Sec. 5.2)
All functions and their operation via the interface (Man., Chap. 6)
Complete list of interface commands with all the printouts (Man., Chap. 7)
The operating instructions you are now reading cover only those features and
controls that are specific to this device. These operating instructions often re-
fer to more detailed descriptions in the Manual.
5.1 Functions
Measuring instrument ALMEMO
ALMEMO
®
sensors.
be used with this measuring instrument. The measuring possibilities are virtu-
ally limitless; there are four channels per sensor plug and over 70 measuring
ranges. With option RHA the measuring instrument also incorporates a digital
sensor for temperature, humidity, and atmospheric pressure, with four chan-
nels. To facilitate operation and measured value display on site the device in-
corporates a keypad and an LCD. At the DC socket it is possible to connect
an external power supply source or a USB data cable with integrated power
supply. Via this interface both the device and the sensor can also be program-
med directly. (see Man. 6) However, the most important innovation on this de-
vice is its integrated Bluetooth wireless module, which, in conjunction with the
Bluetooth sensor module (included in delivery), makes it possible to transmit
measured values over a wireless link to another linked ALMEMO
instrument or data logger.
data from other wireless sensors or standard sensors and then saved - or for-
warded online to a computer for further processing. It is also possible to ope -
rate multiple wireless sensor links in parallel.
®
system (Man, Chap. 1)
®
2790 has just one measuring input M0 for all
This is with the exception of D7 sensors, which cannot
Measured values are collected here together with
®
plug system. These
plug offers decisi-
®
®
measuring instruments in the
Manual which is inclu-
®
ALMEMO
2790
®
Introduction
mea-
®
measuring
®
®
measuring
9
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