Minnow 2.0 Frequently Asked Questions
1. Why should I buy a Senonics Minnow 2.0 Logger?
The Senonics Minnow 2.0 Logger has several selling points which set it apart from other loggers:
1) The logger is high accurary at affordable price.
2) The logger has a clear LCD display with 1 digital humidity and 2 digit temperature
3) The logger is water and dust resistant to IP-67
4) The logger has a small compact professional design
5) The logger has a robust construction
6) The logger comes with free intuitive software
2. What are the maximum logger durations for Minnow 2.0TH?
This will depend on the logging interval:
1 second interval / 10 hours logging
10 seconds interval / 7 days logging
30 seconds interval / 22 days logging
1 minute interval / 45 days logging
10 minutes interval / 1.2 years logging
30 minutes interval / 3.7 years logging
1 hour interval / 7.5 years logging (or until battery is flat)
3. Do we need to by anything other than the Minnow logger?
No! Purchase of the logger includes the logger itself and two coin cell batteries. The software to configure the logger
and extract data is free and installed from the Web. There is no special purpose programming pods or cables for our
product. Everything is simple.
4. What is the preferred battery to use with my Minnow logger?
The Minnow 2.0 logger runs from two standard coin cell batteries. We recommend a CR2032 240mAH coin cell battery. There are
different manufacturers but a good one is Panasonic CR-2032. You can find it easily on the web from different places such as
www.digikey.com, www2.mouser.com and probably in your local supermarket. The key thing is to choose a CR2450 battery with high
capacity since this will translate into a longer logger battery life.
5. What is the response time for the Minnow 2.0 logger for changes in temperature and humidity?
The Minnow 2.0 logger has high quality sensors and due to careful mechanical design is quite responsive. Usually we see a
settling time of about 3 minutes for temperature and humidity changes.
6. How do I know if my logger is logging?
When logging the logger will flash the green status LED every 6 seconds. When the logger finishes logging or is turned off
then the status LED is permanently off.
7. Can I synchronise multiple loggers?
Yes! If you use the "Start at Specified Time" mode in the configuration and use the same future time for different loggers
then they will all start logging together. Try it.
8. What is the Real Time Logging Mode?
Your Senonics Minnow 2.0 logger can run in a mode where it is connected to the logger and the PC application instructs the logger
to collect samples continuously at a desired rate. One can then see the samples collected as a table and graphically (live). This
is a mode in addition to the regular logging modes and is a feature not supported by other loggers.
9. What version of Windows is supported?
The logger is a HID USB device which means it needs no special driver installed. It uses the driver included in Windows. Because of
this the PC software can run on Windows XP, Vista, Windows 7, Windows 8 and Windows 10 in 32 or 64 bit and can be plugged into any USB port on the PC.
10. What options are there for post processing data from the logger?
The data extracted from the logger can be exported as a comma separated value (CSV) file. This is a standard text file format which
can be readily processed by many third party programs such as Microsoft Excel, MatLab etc.
11. My PC does not seem to interpret the Senonics CSV format properly?
The CSV file format made by the Senonics PC application has been made to suite USA comma separated format. Usually this file can be
opened directly within Excel.
On some PCs and in some countries this will not be interpreted correctly. Instead use the Senonics PC application to write the file
with a .txt extension. Next open Excel and open the .txt file. You will be asked how to interpret the CSV file. Ensure that you select
the "comma" delimiting. The file will then be interpreted correctly.
You can also now open the data directly using the open from Excel button.
13. How come I can not log more data after I have connected my logger previously in "scheduled start" mode?
When one has used scheduled start and the logger is then connected, logging will be immediately stopped. One may then
retrieve the logged data. Unfortunately in this logging mode there is no way to restart the logging without reconfiguring the
logger and therefore wiping the data. So you do not loose data but you can not add to the data.
In both logging on disconnection mode and logging on button press it is possible to restart logging when the logger is
disconnected and new data is added to the old.
14. How long does it take to ship my logger once I have placed an order?
We endeavour to have all logger products in stock at all times. We ship with Fedex, DHL or UPS transport and the
estimated time is 2 days world-wide.
15. Does Senonics make custom logger products?
Senonics is always keen to learn about customers needs and in some cases there could be a cooperative project which
results in a custom logger product or setup. Contact us if you have suggestions to our products or some specific application in mind.