DTU2xx Data Logger Series
User Guide. r. 2.1 | 2021-11-10
Tel.: +420 538 890 720
19
e-mail: [email protected]
2. Getting Started
Important safety information
WARNING!
Data loggers with the built-
in 100-240V power supply unit
(
DTU217-C, DTU227-C, DTU227-UC
)
have electronic equipment safety
CLASS I and need to be properly
grounded before applying power.
To ensure reliable grounding of the
device, use a suitable 3mm
hole
ring lug.
To connect the ground, follow these steps:
1. Attach grounding wire to grounding ring lug.
2. Unscrew the grounding screw on the rare side of the terminal (near the ground icon.
3. Insert the grounding screw into the hole of the ring lug and then into the hole on the rear
side of the data logger. Use a spring washer between the screw and the DTU to prevent the
connector from loosening.
4. Tighten the grounding screw and the ring lug to the data logger panel. Do not overtighten
the screw!
ATTENTION!
DTU217-C, DTU227-C, DTU227-UC have a built-in power supply unit and can be
connected directly to a 100-240V power supply source. Since the device does not have its own
power switch and can be installed into hard-to-reach places (electrical cabinets, etc.), for safety
reasons, equip the device with an external power-off switch. The switch should be placed in an
easily accessible place and its designation should be visually accessible and easily identified by
the function performed.
NOTE
: When using a 230v powered DTU2xx-C device, for double protection against electric
Installing DTU data logger
Before installing the data logger, you need to register
on the dispatching server
and add
your data logger to the server by the IMEI number and PIN code (see on the label of the case cover).
1.
Check the data logger for compliance with the completeness of the technical documentation and
make sure that there is no visible damage to the case and markings. Prepare cable glands for
meters and sensors for operation.
2.
Install the SIM-card (-s) into the DTU, having previously disabled the PIN codes. To insert a SIM
card, extract a SIM card tray out of the SIM slot by pressing SIM card tray ejection button with a
SIM ejection tool. Place the SIM cards into the trays and insert each tray back until it clicks:
Fig. 13. DTU2xx grounding screw.
