DL200X operating manual for external sensors
12
EN
10.1. Battery change
If “LO bAtt” appears in the upper row of the display, then the batteries need
to be changed.
No data can be recorded while batteries are being changed. If data
recording is running, pause it and ensure that the data logger is in
operating mode M1 or M2 before changing the batteries.
To replace the batteries, open the battery compartment, remove the used batter-
ies and then insert new batteries, while observing the correct poles.
Choking hazard:
Keep batteries out of children’s reach.
The time is maintained for at least a minute during battery change, even
when batteries are not inserted.
Do not use rechargeable batteries!
Only use appropriate batteries which comply with the technical data. Other types
of batteries can cause operating errors.
Risk of leakage: Please remove the batteries from the device during
longer periods of inactivity.
Recommendation: Use Varta Industrial Alkaline (LR6 / AA) batteries.
Do not dispose of used batteries in the household rubbish or throw them in the
fire; instead, dispose of them according to the relevant legal requirements.
10.2. Deleting measured data
The detected measured data are permanently saved in the internal Flash
memory. Even when resetting the device to factory settings or when there are
no batteries in the device, the measurement data remains in the memory and is
not deleted.
Saved data can only be deleted via the SmartGraph3 software as a whole and
not individually.
The deletion process takes approx. 2
minutes. During this time, the following
messages appears on the display:
“FOMA FLSH xxx %”.
During the entire deleting period, access
to the device is not possible and it does
not respond to requests from the Smart-
Graph3 software.
After memory has been completely
deleted, “FOMA FLSH 100 %” is shown
on the display. Afterwards, the display returns to normal operation.
Further detailed information about using the software is provided in the
software manual which you can open from the help function of the Smart-
Graph software.
Display for deleting measured data.
In the display, 6 % of the data have been
deleted so far.
10.3. Positioning for mobile use
For mobile measured value recording, the data logger can be positioned at any
site. Observe the permissible ambient conditions for operation (see technical
data). Due to its compact dimensions, the data logger can be hidden for non-
intrusive applications.
10.4. Mounting on a wall
For stationary data detection, the data logger can also be mounted on a wall
or a similar holding device. A mount track is included in the scope of supply
for fastening.
For network operation, wall mounting is absolutely necessary.
Additional information about network operation is provided
in chapter 6.2.2.
10.5. Moving to another site
Especially when moving from cold to warm ambient conditions, e.g. when
moving into a heated room after storage in a car over night, depending on hu-
midity in the room, condensation may form on the printed circuit board.
This physical trait can lead to false measured values. Unfortunately, it is neces -
sary for the construction and cannot be prevented in any measuring devices.
In these cases, please wait approx. 5 minutes until the measuring device has
“acclimatised” before starting to measure.
10.6. Measuring accuracy
The measuring accuracy of external analog sensors may be affected by high-
frequency interference. Motor cables and power supply units can generate
strong electromagnetic fields, which may restrict the measuring accuracy if
cables are laid and sensors positioned unfavourably. For example, the measuring
accuracy of a Pt100 temperature sensor may drop from ±0,2 °C to ±2 °C.
The use of separate voltage supplies and installation in shielded switch cabinets
can prevent interference in critical ambient conditions.
10.7. Installation and operation with Ethernet
(with or without PoE)
To avoid measurement inaccuracies caused by high-frequency interference, it
is necessary to use a shielded Ethernet cable and connect its cable shield to
earth (PE). This should be done using at least one grounded patch panel. In the
case of a switch cabinet installation, earthing using shield terminals near the
device is recommended!
10.8. Cleaning
The use of aggressive cleaning agents in the vicinity of the DL200X may damage
the humidity sensor beyond repair.
If the DL200X needs cleaning, use only a damp cloth, adding commercially
available dishwashing detergent, if necessary.
10. Notes on maintenance and operation
