DL7, DL7L
14
5. DL7 MODULES
Individual electrical connection diagrams are given in section
5.1 DL7 basic kit
Each DL7 device is composed of the following:
case
face plate with an LCD display and USB port type A
basic M module
5.2 Basic M module
The basic M module is made up of the following:
USB type A port,
Ethernet port,
RS-485 communication interface connector,
mini USB B socket with a button
– for maintenance,
connector for connecting the device to power supply.
5.3 The 0/4-20mA inputs modules DL7-IN6I(24V)
interfacing with the passive transducers with standard 0-20mA or 4-20mA output,
transducers supplied with 24 VDC,
linear current measurement within the range or sub-range of -20 .. +20 mA,
6 measurement inputs galvanically separated from the remaining circuits.
each input has a separate pin type four-wire terminal block.
a two-colour LED diode informing about the module's operating status.
CAUTION: The maximum number of modules in the device
– 4.
5.4 The 0/4-20mA inputs modules DL7-IN6I
interfacing with the active transducers with the standard current output 0/4-20mA (or
passive transducers with additional external power supply),
linear current measurement within the range or sub-range of -20 .. +20 mA,
6 measurement inputs galvanically separated from the remaining circuits.
each input has a separate pin type four-wire terminal block.
a two-colour LED diode informing about the module's operating status.
5.5 The RTD inputs modules DL7-IN6RTD (DL7-IN3RTD)
temperature measurements using the Pt, Ni, Cu, KTY type sensors (a complete list of
sensors is given in the chapter discussing the technical data),
linear measurement of the resistance within the range or sub-range 0 .. 4000
Ω,
6 (3) measurement inputs galvanically separated from the remaining circuits.
each input has a separate pin type four-wire terminal block.
a two-colour LED diode informing about the module's operating status.
