Fourier MicroLog DT141 User manual

External Sensor
CONTACT
DT141
ACCESSORIES
Range:
Connectors:
Internal pull-up
resistor:
open / close
screw terminals
no need for external
power source
User Guide
for MicroLog
EC600 and EC650

2
Microlog External Contact Sensor
DT141
The MicroLog External Contact Sensor is one
of MicroLog’s 6 external sensors. Using this sensor,
you will be able to monitor reed relays and door
switches, allowing you to correlate between temperature
changes and door status. This sensor can also be used for
many other applications that require contact monitoring.
fig. 1

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MICROLOG SOFTWARE
Windows 3.x (MicroLab 2.0 only), Windows 95/98/2000/ME/XP
compatible. Data can be exported to any common spreadsheet.
The external contact sensor is compatible with MicroLab software
versions 2.0 or higher.
Follow the steps below to select the sensor using
MicroLab 3.0 (or higher versions):
Selecting the MicroLog External Sensor
1. Connect MicroLog to the PC using the serial communication
cable.
2. Open the MicroLab software.
3. Select SETUP menu.
4. Activate the MicroLog external sensor by marking the external
sensor check box (fig. 2).

4
fig. 2

5
Selecting the External Contact Sensor
Select an external contact sensor from the drop down menu.
The contact sensor will show only two values, “Open” and
“Close”. You may select your own values by replacing the default
”open” / “close” from the DEFINE NEW SENSOR menu. In the
DEFINE NEW SENSOR dialog box, select ADD, and select CONTACT.
Then fill in the sensor name, and two sensor values representing
the sensor position when the sensor is measuring “open” or
“close”, and press OK (fig. 3).
fig. 3

fig. 4
6
Follow the steps below to select the sensor using
MicroLab 2.0:
Selecting the MicroLog External Sensor
1. Open the MicroLog software.
2. Connect MicroLog to the PC using the serial communication
cable.
3. Click on STOP in the left-hand toolbar.
4. Activate the MicroLog external sensor by clicking on the
Sensor Selection button next to the external sensor on the
right-hand toolbar (fig. 4).
5. Program MicroLog by clicking on the yellow SEND arrow at
the bottom of the right-hand toolbar. You will know
MicroLog has been programmed when the yellow arrow
becomes transparent.

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Selecting the External Contact Sensor
1. Select the small rectangle near the External sensor icon
(fig. 4).
2. Select Contact and press OK (fig. 5).
3. The dialog box should close automatically.
If the box is not closed it means that MicroLog is either not
connected to the PC or is in Sleep mode. Before disconnecting
the communication cable and connecting the sensor, please do
not forget to set MicroLog to Logging Mode, by clicking the Run
button on the left-hand toolbar.
fig. 5

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WORKING WITH MICROLOG
Disconnect the communication
cable from MicroLog and insert
the sensor connector cable in its
place (fig. 6). Connect the sensor
directly to the reed relay or to
the switch you are monitoring.
The sensor’s two terminals have
no polarity. Make sure that the
switch is not powered by a
voltage source; our sensor has
an internal pull-up resistor and therefore does not require any
voltage source.
MicroLog samples the sensor at the chosen rate; therefore switch
changes that are faster than the MicroLog sampling rate will not
be recorded. For example, if the MicroLog sampling rate is “every
1 minute” the switch being monitored should be open or closed
for at least 1 minute at a time in order for MicroLog to record
the changes.
When downloading the data to the MicroLog software, the data
will be displayed in two values representing the sensor’s “open”
and “close” states. There is no need to select the external sensor
before downloading the data.
fig. 6

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Warranty
FOURIER SYSTEMS warranties this product to be free from
significant deviations in material and workmanship for a period
of one year from date of purchase. If repair or adjustment is
necessary and has not been the result of abuse or misuse within
the warranted time period, please return – freight pre-paid –
and correction will be made without charge. FOURIER SYSTEMS
alone will determine if the product problem is due to deviations
or customer misuse.
Out-of-warranty products will be repaired on a charge basis.
Return of items
Authorization must be obtained from your FOURIER SYSTEMS
distributor before returning items for any reason. When applying
for authorization, please include data regarding the reason the
items are to be returned. For your protection, items must be
carefully packed to prevent damage in shipment and insured
against possible damage or loss. We will not be responsible
for damage resulting from careless or insufficient packing. A
restocking charge will be made on all unauthorized returns.
Note: We reserve the right to make improvements in
design, construction, and appearance of products without
notice.

MORE AVAILABLE EXTERNAL SENSORS
Temperature Sensor -50 to 100 °C (-58 to 212 °F)
PH Sensor 1 - 14 pH
Voltage Sensor 0 - 10 V
Current Sensor 0 - 20 mA
Light Sensor 0 - 5000 lux
Contact Us
For further information please contact our local dealer.