
RTDTempX Series
4, 8, 12 and 16-Channel
RTD Based Temperature
Data Logger
PRODUCT
USER GUIDE
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RTDTempX Series
PRODUCT USER GUIDE
Product Overview
The new RTDTempX Series consists of 4, 8, 12 and 16-channel RTD based temperature data logger with a reading rate of
up to 4 Hz. Improvements include the elimination of an interface cable (uses standard USB-A to Micro USB), increased
memory for more readings and increased download speed. To maximize memory capacity, users can enable or disable
channels. For easy identification, each channel can be named with up to a ten digit title.
The RTDTempX Series is ideal for a variety of applications, whether it is remote temperature monitoring, or multiple points
in a central location. Data from all channels is simultaneously logged. After the monitoring cycle is complete, data can be
downloaded for analysis. The RTDTempX Series comes with a wall mounted universal power adapter. See data sheet for
full specifications.
Wiring Options
For 4-wire RTD probes, connect the four lead wires to your RTD logger as shown in the figure below.
For 3-wire RTD probes, short inputs 3
and 4 together, then connect the lead
wires to inputs 1, 2 and 3.
For 2-wire RTD probes, short inputs
3 and 4 together and inputs 1 and 2
together, then connect the RTD lead
wires to inputs 2 and 3.
Warning: Note the polarity instructions. Do not attach wires to the
KEY
4- Excitation Current Out (+)
3- Measurement (+) Input
2- Measurement(-) Input
1- Ground (-)
wrong terminals. 100 Ω, 2 or 4 wire RTD probes are recommended for the
most accurate performance. Most 100 Ω, 3 wire RTD probes will work,
but MadgeTech cannot guarantee the accuracy. To determine whether
or not the 3-wire RTD probe will work, the resistance between the two
same colored wires should be less than 1 Ω. (Note: Please contact the
manufacturer of the RTD probe for questions on the resistance.)
Installation Guide
Installing the Software
Follow the instructions provided in the Installation Wizard. Compatible with Standard Software version 4.2.19.0 or later
and Secure Software version 4.2.18.0 or later.
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Product User Guide | 2

RTDTempX Series
PRODUCT USER GUIDE
Device Operation
Connecting and Starting the Data Logger
1. Once the software is installed and running, plug the
supplied USB A to Micro USB cable into the data logger.
2. Connect the USB A end of the cable into an open USB
port on the computer.
3. The device will appear in the Connected Devices list.
Highlight the desired data logger.
4. For most applications, select Custom Start from
the menu bar and choose the desired start method,
reading rate and other parameters appropriate for the
data logging application and click Start.
• Quick Start applies the most recent custom start
options
• Batch Start is used for managing multiple loggers at
once
• Real Time Start stores the dataset as it records
while connected to the logger
5. The status of the device will change to Running,
Waiting to Start or Waiting to Manual Start,
depending upon your start method.
6. Disconnect the data logger from the USB cable and
place it in the environment to measure.
Note: The device will stop recording data when the end of memory
is reached or the device is stopped. At this point the device cannot be
restarted until it has been re-armed by the computer.
Channel Naming
Up to a 10-character channel name can be programmed
into the data logger for each channel. This ability helps to
rename a channel in a report to distinguish it from other
similarly named channels.
1. In the Connected Devices panel, click the device desired.
2. On the Device Tab, in the Information Group, click
Properties. Or, right-click the device and select
Properties in the context menu.
3. In the Channels panel, find the channel desired, then
select “Use custom name.”
4. This will prompt a space to type in a name.
5. Select OK, then there will be a prompt to reset the
device, select Yes.
Downloading Data from a Data Logger
1. Connect the logger to the supplied USB A to Micro USB
cable.
2. Highlight the data logger in the Connected Devices list.
Click Stop on the menu bar.
3. Once the data logger is stopped, with the logger
highlighted, click Download. You then can create a
report from the saved Dataset.
4. Downloading will offload and save all the recorded
data to the PC.
Set Password
Manual Start
Click the Custom Start button on the Device panel, or
right-click on the device and hover on the start selection,
then chose custom start. Apply the options desired and
select Start. Once armed through the software, to activate
the Manual Start, hold the recessed push button, adjacent
to the interface cable plug, down for 10 seconds. Green LED
will blink rapidly and then blink every 15 seconds. To see
the change in the status, hit Refresh within the software.
Manual Start Button
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To password protect the device so that others cannot
start, stop or reset the device:
1. In the Connected Devices panel, click the device
desired.
2. On the Device Tab, in the Information Group, click
Properties. Or, right-click the device and select
Properties in the context menu.
3. On the General Tab, click Set Password.
4. Enter and confirm the password in the box that
appears, then select OK.
Product User Guide | 3

RTDTempX Series
PRODUCT USER GUIDEPRODUCT USER GUIDE
PRODUCT USER GUIDE
LED Functionality
Primary LED (Green):
Solid when communicating with computer.
Flashes every 15 seconds when logging.
Flashes every 5 seconds when in delay start.
Secondary LED (Red):
Flashes every 5 seconds when battery is low.
Flashes every 5 seconds when memory is low.
Channel LED (Blue):
Flashes every 2 seconds when reading rate
is 2 seconds or faster.
Flashes same as reading rate when reading
rate is slower than 2 seconds.
Device Maintenance
Battery Replacement
Materials: 3/32 inch HEX Driver (Allen Key) and a
Replacement Battery (U9VL-J)
1. Remove the cover from the device by unscrewing the
two screws.
2. Remove the battery from its compartment and unsnap
it from the connector.
3. Snap the new battery into the terminals and verify it is
secure.
4. Replace the cover taking care not to pinch the wires.
Screw the enclosure back together securely.
Note: Be sure not to over tighten the screws or strip the threads.
MadgeTech 4 Software Support:
• Refer to the built-in help section of the MadgeTech 4 Software
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DOC1377036-00 | REV 1 2020.04.17