Frequently Asked Questions
Can I get a report of my data?
If you are using a Sense-2 kit, you can download a .csv report of all data stored on the display using the Insight function and any WiFi enabled device with a web browser. If you are using a Sense-3 kit, you can view your data on our online platform ...
Do you have any product case studies?
A range of case studies and customer success stories can be found on our main website HERE
How do I become a distributor?
We are always looking for new distributors, so please send your enquiry to sales@tandeltasystems.com
How long does it take to analyse a sample with the MOT kit?
Once you have filled in the details of the asset and obtained the oil sample, the sensor analysis takes around 30 seconds.
What is the maximum cable length you can use with a sensor?
This depends on the protocol being used and the quality of the cable being used. As a rough guide, for CANbus/J1939 it's approximately 50m, whereas for Modbus and 4-20mA it's 100s of metres.
How many sensors can be fitted to a Sense 3 gateway device?
Up to 16 sensors can be connected to the Sense 3 system using gateway hub devices.
Can you download data from the Sense 2 display (OQDe)?
Yes, this can be done via any WiFi enabled device using the in-built Insight function. More detail can be found in the Master user guide.
How many records does the Sense 2 display (OQDe) hold?
Approximately 1,000,000 records.
How many sensors can you fit to the Sense 2 display (OQDe)?
The Sense 2 display (OQDe) is designed for use with one sensor. (One sensor per display).
Can the sensor be used in hazardous environments?
We have a "HAZ" version of the sensor specifically designed, built and certified to ATEX zone 2 / intrinsically safe / Class 1 Div 2. EX compliance standards: BS EN IEC 60079-0:2018 BS EN 60079-11:2012 This sensor works in exactly the same way as the ...
Do you have a sensor with a longer nose available?
Yes, we have a sensor with a longer nose for applications where the standard sensor nose is not long enough. The example shown below is a longer nose sensor with a standard 1/2"BSPP thread. Example standard 1/2"BSPP sensor (left) and 1/2"BSPP long ...
Are bespoke threads available?
Yes, we can produce sensors with a bespoke thread size or type, provided that the thread internal diameter is not smaller than the diameter of the nose of the sensor. Please contact us with your specific requirements and we can advise.
What material is used in the construction of the sensor?
The sensor body and nose is made from SS304 and the central electrode is of nickel plated brass.
How much oil do you need to create a new oil profile?`
Ideally we require a 400ml sample of new clean oil. You can request a new oil profile using the form provided HERE
What do I do if the oil I want to use is not in the oil database?
You can select a similar oil in the database to use (be aware this may not give you the most accurate result), or alternatively, you can send us a sample of oil to profile and add to the database. You can request a new oil profile to be added HERE We ...
How do I check what oils are in the sensor database?
You can use our oil database check tool to see which oils are already profiled and in our oil database. The tool can be found on our main website HERE The oil database can also be downloaded from our website for use with the CADS application or MOT ...
Does the sensor work in coolant?
No, the sensor does not work with fluids that are predominantly water. The sensor is specifically designed to be used in oil. Using it in a predominantly water based fluid will return results that are unreadable and may damage the sensor.
Does the sensor work in fuel?
Yes, the sensor is compatible with fuel. We have several examples of the sensor being used to monitor fuel condition and the presence of contaminants, or other substances being added to fuel.
Can the sensor be used in dielectric fluids?
Yes, the sensor is fully compatible with dielectric fluids. If you have a specific fluid you want to use the sensor with, please check our oil database on our website HERE If the fluid you wish to use the sensor with has not yet been profiled for use ...
What is TDN?
Tan Delta Number (TDN) is a value which indicates the overall condition of the oil. The value range starts high for a new oil and finishes low for an old and worn oil. (Further information on the value range can be found in our master user guide.) ...
How does the sensor work?
The sensor measures complex permittivity (which is a ratio between conductance and capacitance). The sensor does this does this by introducing energy into the fluid via a high frequency AC waveform Sensor induces energy into the fluid via a HF AC ...
What is the sensor measuring?
The sensor is monitoring the overall condition of the oil using our Full Spectrum Holistic (FSH) technology. In practice this means the sensor is monitoring the whole condition of the oil using a method called complex permittivity, which is a ratio ...
How often should I take a reading from the sensor?
Our Sense-2 and Sense-3 kits are pre-set to take a reading from the sensor at a standard time interval. Both kits enable you to set alert and alarm levels for oil condition and offer a customisable solution for oil condition monitoring. For most ...
How fast will the sensor react to changes in the oil?
The sensor is reading the oil in excess of 128 times a second, so it will react almost immediately to significant changes in the oil. The rate at which you choose to read data from the sensor will determine how quickly that change is shown in your ...
What is available on the 4-20mA analog output?
Both oil condition and oil temperature are available as 4-20mA analog outputs. The analog outputs can be used with both 4-20mA current sensing input devices as well as voltage sensing input devices. Installing on systems with a current sensing input ...
Which communication protocols does the sensor support?
The sensor is capable of outputting oil condition and oil temperature in both an analog signal and a digital signal as follows: Analog: 4-20mA Installing on systems with a current sensing input Installing on systems with a voltage sensing input ...
What data does the sensor output?
The sensor reports a number that represents the overall oil condition at that moment in time. This is called "Tan Delta number" (TDN). The sensor reports a number that represents the overall oil condition The sensor also outputs a value for oil ...
Where can I download CADS from?
CADS is available to download HERE CADS is designed for installation and use on Windows PCs. Please ensure that you have appropriate administrator rights to install the software application and also an available USB port for the configuration cable ...
What software do I need to configure the sensor?
You need the Tan Delta CADS application to configure a sensor. This is designed for windows PCs and can be downloaded HERE All sensors must be configured prior to use for both the communication type to be used and also for the oil the sensor is to be ...
What orientation does the sensor need to be installed in?
The sensor will work in any orientation, however "nose up" should be avoided as any particles in the oil may collect around the sensor head and give an incorrect reading. "Nose up" installations should be avoided where possible and are not suitable ...
What is the maximum flow rate for the sensor?
There is no maximum flow rate for the sensor, provided the sensor nose remains immersed in oil and air is not being pulled into the sensor. Sensor must not restrict the flow of oil
What is the minimum flow rate for the sensor?
There is no minimum flow rate, so long as there is turnover of the oil (oil is moving). Sensor should be installed into oil that does move A sensor installed in static oil will only read the same sample of oil
Does the sensor need to be in the oil flow?
The sensor does not need to be in the direct flow of oil, provided there is turnover of oil (oil is moving). The sensor nose must remain immersed in oil at all times however to provide an accurate reading. The sensor nose must be fully immersed in ...
Where do I fit the sensor in a gearbox?
You should install the sensor into an OEM port, inspection port or fill port. When installing in a gearbox, care should be taken to ensure that the oil level is sufficient to cover the nose of the sensor at all times when the gearbox is in operation. ...
Where do you fit the sensor on a hydraulic system?
The sensor should be fitted into an available OEM port in or around the oil filter, alternatively the sensor can be fitted into an oil pipe or hose using a manifold, or into the oil tank. Sensor can be installed into an OEM port, a manifold or a ...
Where do you fit the sensor on an engine?
On an engine, you should install the sensor ideally into an OEM port in or around the oil filter. If an OEM port is not available, you can intercept a hose or oil pipe using a manifold. Sensor can be installed into an OEM port, a manifold or a ...
What is the operating temperature range for the sensor?
The sensor is designed to operate between -40 and +120C Sensor maximum operating temperature 120degrees
What is the maximum pressure the sensor can be installed into?
The sensor can work in systems up to a maximum pressure of 70 bar. Maximum pressure of 70bar If a system operates at a higher pressure, we recommend installation into the low pressure return for the system, or into the system reservoir tank. Sensor ...
What voltage does the sensor require?
The sensor can operate on a supply voltage of 9v to 30v DC Any power supplies exceeding this voltage range may damage the sensor.
Do I need to configure the sensor?
Yes, the sensor is configured using a PC, configuration cable (Cable J) and the Tan Delta CADS application prior to installation. Help and support for the installation and use of the CADS application can be found HERE Prior to installation the sensor ...
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