Fluke COMARK RF400 User manual

RF400 Loggers Trouble Shooting Guide
Issue 1 –Oct 2019
The Professionals’ Choice
Comark Instruments
52 Hurricane Way, Norwich, Norfolk, NR6 6JB, UK
Tel: [phone]
www.comarkinstruments.com
Comark Instruments
PO Box 500, Beaverton, OR 97077, USA
Tel [phone]
www.comarkUSA.com
Comark RF400
Comark RF400 Help Guide –Troubleshooting
Forced Connection and Transmission
It’s possible to get the RF400 Logger to reconnect to a network and upload any unsent readings to the Comark
Cloud. To do this hold down the button on the front of the RF400 Logger and it will beep once. Keep the button
pressed until the RF400 Logger beeps again then release the button. This will force a connection and transmission.
Signal Strength
The RF400 Logger reports its current signal strength to the Comark Cloud
every time it communicates. It is possible to get real time signal strength
from the RF400 Logger to aid installation issues. To do this hold down the
button on the front the RF400 Logger and it will beep once. Keep the button
pressed until the RF400 Logger beeps two more times, then release the
button. The RF400 Logger will start beeping in relation to the signal strength.
Fast beeping is a good signal, slow beeping is a poor signal. In addition, the
LED on the button will flash green indicating a good signal, orange indicating
a medium signal and red for a poor signal. Press the button once more to
end signal test. Signal strength will only work if the RF400 Logger has been
set up to talk to the Comark Cloud. Signal strength test will automatically
end after 1 minute.
LED & Buzzer Patterns During Normal Operation
Quick Green LED every 5 seconds
Normal operation –battery power
Solid Green LED
Normal operation –external power
Red LED every 5 seconds
Alarm Active
Quick Red LED every 5 seconds
Alarm mute
Quick Orange LED
(short beep every 30 min)
Generic Fault e.g. Lost network connection or missing probe –battery
power
Solid Orange LED
(short beep every 30 min)
Generic Fault e.g. Lost network connection or missing probe –external
power

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LED & Buzzer Patterns During Setup
Orange LED blinks once every 2 seconds
RF400 is in Setup and waiting for an App to connect to it
Orange LED blinks twice every 2 seconds
(quick beep)
The App has connected to the RF400 and is waiting for setup information
LED Flashing Orange and Green
Setup in progress. Attempting connection with network and Comark Cloud
Server
LED steady green for 5 Seconds (two tone
beep)
Setup complete
LED steady orange for 5 seconds
(and 3 beeps)
Setup fail
Is there PC Software to setup RF400?
No, RF400 Loggers are setup using an App, either on Android or iOS. Please visit the App Stores and Search for
‘Comark Cloud’to download and install the app on your phone or tablet.
Network Connections
The RF400 Logger needs unrestricted access to the internet to allow it to communicate with the Comark Cloud. The
RF400 Logger requires access to https://comark.wifisensorcloud.com/ which currently resides at address
78.136.35.241
It uses TCP ports 443 and 14354 only. The RF400 Logger will use a DNS server to resolve the Comark Cloud URL.
NFC –Near Field Communications –Android Only
The RF400 Logger has an NFC interface to allow for quick display of the current status. This feature is only available
on Android devices. The NFC antenna is located at the bottom right corner of the RF400 Logger. The App will verify
that the RF400 Logger is registered to the Comark Cloud account, which the user has signed into, before showing any
information. This is a security feature to prevent anybody with an App reading any RF400 Logger. When the RF400
Logger detects the NFC from the device it will beep once.
If I have a power cut or my WiFi network stops working, will I lose any of the data from my RF400
Logger?
No, even if your WiFi network has failed, the device will continue logging at the sample rate that you have set. When
your WiFi network is restored, the device will automatically sync data to the Cloud. No data is lost.
How can I (Factory) Reset my RF400 Logger device?
To Reset a RF400 LOGGER device you will have to unscrew the back and remove it to expose the battery bay of the
device. Then you will need a paperclip or a pen to press the black reset button located centrally within the
compartment. One press and release of this button will reset the device, this is confirmed by a two-beep signal once
the button has been released. The device will retain all settings but will lose any data that had not been transferred
to the Comark™ Cloud. It will continue to be connected to the account it was set-up with and will simply start a new
recording session.
If necessary, a full factory reset can also be performed by holding the button for 10 seconds until you hear a two-
beep signal that repeats until the reset button is released. Doing this will return the device to the factory state,

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Part No. 20721-1
deleting all settings and clearing any remaining data. The device will no longer be connected to any network or
Comark Cloud account. IT IS RECOMMENDED THAT YOU ARCHIVE THE DEVICE ON YOUR COMARK CLOUD DEVICES
PAGE BEFORE UNDERTAKING A FACTORY RESET.
How do I turn my RF400 LOGGER device off?
The device will remain on permanently unless the battery runs out. Removing the battery will switch off the logger.
My RF400 LOGGER device will not connect to the wireless network, what can I do?
You can try any, or all, of these steps to help with this problem
1) Check that the password being entered is correct.
2) Check if 802.11b is enabled on the access point or router and consider switching if off.
3) Ensure MAC filtering is not switched on in the access point or router. If it is switched on, only known devices will
be able to connect to your router. Ensure that the MAC Address of your RF400 Logger is entered on the Router.
4) Check that your network has an internet connection.
5) Check that the device is in range of the router.
6) Check to see if the router has the latest firmware.
7) If the access point or router has WEP Encryption ensure that the HEX key is being entered rather than the
password. You can find the HEX key in the internal settings of your access point or router. Alternatively, search the
web for resources to help convert your password to a HEX key.
8) Check that DHCP service is running. This allows the device to be allocated an IP Address. Normally, the DHCP
service runs in either your router or on a network server. Make sure that the configured DHCP IP address range
allows the addition of new devices; if not, then extend the range.
9) If your wireless network uses WPA Enterprise, make sure that the correct authentication type is selected from the
drop-down box. Only the types listed are supported.
10) If your access point or router has a wireless mode setting, this must be set to ‘Mixed’, not ‘GreenField’.
11) Make sure that the SSID name does not contain spaces.
Will the RF400 Logger device work with a VPN (Virtual Private Network)?
This is technically possible, provided that the VPN can allow the device internet access via TCP port 14354.
How do I determine signal strength for my RF400 Logger device? Duplicate
The RF400 Logger reports its current signal strength to the Comark Cloud every time it communicates. It is possible
to get real time signal strength from the RF400 Logger to aid installation issues. To do this hold down the button on
the front the RF400 Logger and it will beep once. Keep the button pressed until the RF400 Logger beeps two more
times, then release the button. The RF400 Logger will start beeping in relation to the signal strength. Fast beeping is
a good signal, slow beeping is a poor signal. In addition, the LED on the button will flash green indicating a good
signal, orange indicating a medium signal and red for a poor signal. Press the button once more to end signal test.
Signal strength will only work if the RF400 Logger has been set up to talk to the Comark Cloud. Signal strength test
will automatically end after 1 minute.

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If my RF400 LOGGER device's battery runs out, will I lose all of my data?
The device will not take readings when there is no power but all readings it has taken prior to the loss of power will
be synchronised. Once the batteries have been replaced, the device will reconnect to the Comark Cloud, start a new
recording session and continue recording.
You must set suitable sample and transmission rates as these will affect your battery life.
If I have a power outage, will I lose any of the data logged by my RF400 Logger?
As the device is powered by battery, the device will always continue recording at the sample rate you have set. If a
power outage occurs, the device will continue to attempt to connect to your network until power returns and the
access point or router becomes available again. The device then synchronises all remaining data with the Comark
Cloud. No data is lost.
How do I change the batteries in my RF400 Logger device?
Your RF400 LOGGER data Logger is provided with 4 x 1.5V AA Alkaline cells. To change the batteries, you will need to
unscrew the two screws of the battery cover. For a diagram, please refer to your Quick Start Guide, which is also
available from the product's page on our website. Always use good quality cells and always replace all cells together.
Can I permanently power my RF400 Logger device?
Yes, you can, the RF420 mains power adapter for the device is sold separately.
What does a green flashing light mean?
A green flashing light with no buzzer noise indicates that your RF400 Logger is running on battery power, is not in
alarm or fault state and connection to the Cloud has been established.
What does a solid green light mean?
A solid green light with no buzzer noise indicates that your RF400 Logger is running on external power, is not in
alarm or fault state and connection to the Cloud has been established.
What does a flashing red light and beeping mean?
This means that your RF400 Logger is in Alarm state, a High or Low Alarm on any channel has been triggered and has
not yet been Muted or Reset.
What does a flashing red light and no beeping mean?
This means that your RF400 Logger is in Alarm state - a High or Low Alarm on any channel has been triggered and has
been muted. The alarm can be muted from the button or from the Cloud.
What does an orange flashing light and beeping mean?
If a device is flashing once every 5 seconds it means the device has a fault, if it is flashing 4 times in quick succession
that means you could have a critical fault. To clear we advise resetting your device using the reset button. If the fault
persists then please contact technical support.
What does a flashing orange light and no beeping mean?
This indicates that the device is in setup mode and awaiting a connection, this will have been caused by the setup
button located in the battery compartment being pressed.
What does a flashing red and orange light and beeping mean?
This means that the device is in alarm and also has a fault. The alarm can be reset from the Cloud, to fix the fault you
may want to try resetting the device, if the fault persists please contact technical support.