TTP Coffee Sensor staff is providing this guide to help our customers install and use our sensor.
This material includes the following:
- assembly instructions
- product maintenance and repair
- troubleshooting guide
- Assembly instructions
When assembling and installing our sensor, please check and be sure that the temperature of the machine is low, close to room temperature. Also push the extraction lever up to open position, in order to release any water pressure from the E61 group head.
After these two very important security checks, you can start and disassemble the hex screw from the group head, using the provided small wrench.
During the entire process, be careful not to damage the stainless steel body of your coffee machine. Work slowly and carefully.
After a successful disassemble of the hex screw, leave the Teflon washer that your coffee machine already has into the the small slot, where the hex screw was originally inserted.
Check before installing the sensor, that on the fillet of the product, the small coper washer is present.
After this check, feel free to screw the sensor into the E61 group head.
To recapitulate, between the sensor and the group head, there needs to be ONE TEFLON WASHER (the original washer of the machine) AND ONE COPER WASHER (provided with the sensor).
TTP Coffee Sensor offers up to 3 coper washers into the package.
The reason is that Vibiemme (VBM) coffee machine users, because of the screw insertion angle, owners could use up to 3 coper washers, to be able to make a more tighten screw of the sensor into the group head.
After screwdriving the sensor into the group head, feel free to position the LCD screen of the sensor into the correct horizontal position, by gently spinning the sensor into the left / right.
After the installation of the sensor, one important and last security check is the blind basket testing.
During this procedure, don’t stand right in front of the sensor and do not look directly into the LCD screen of the sensor. It is safer to stand aside and watch for any possible water leaks.
This testing needs to be made at coffee machine normal work pressure, in order to check for any water leaks.
- Start the check process by installing the blind basket into your portafilter
- Make sure that the sensor is correctly inserted into the group head
- Start the coffee machine pump by rising the lever up into the open position.
- Leave the pump running for a few seconds, until the sound indicates that the water is blocked into the blind basket
- Stop the pump by lowering the lever into close position
This last step stops our security check.
These steps are important in order to use the sensor safely.
If there were not any leaks present, the sensor is ready to be used.
If there were leaks between the stainless steel body of the sensor and the group head, tighten the screw even more if possible. In some cases, you could use Teflon tape (small portion only) in order to enhance bonding between the group head and Coffee Sensor.
If the leak is coming from inside the sensor, it means that there could be manufacturing faults present.
In this situation, urgently contact TTP Coffee Sensor staff and DO NOT USE THE SENSOR !
Before using the coffee machine again, unscrew the sensor and put the original hex screw back into the group head.
Before this procedure, check again that the temperature of the machine is low, close to room temperature.
- Product maintenance and repair
Our sensor does not need special maintenance procedures during use.
For repairs, please feel free to contact our staff in order to receive any special instructions.
One of the most common issues with the sensor is replacing the battery.
We need to mention that TTP Coffee Sensor uses a LR44 type battery.
When replacing the battery, please check and be sure that the temperature of the machine is low, close to room temperature.
During this process, it is not recommended to remove the wires completely from the adaptor’s housing. Try not to move them and be careful to leave the special glass diode from the end of the wires into the original position from inside the stainless steel adaptor.
When looking directly at the sensor, at the top of the product, you will see that there is a small gap, for inserting something thin, like your fingernail. Insert fingernail into the gap and push the sensor’s display towards you in order to open the first part of the sensor, that has the LCD screen and also the mainboard and LR44 battery.
Replace the battery by untightening one of the two metal small parts that keep the battery into place.
After putting the new battery on to the mainboard of the sensor, retighten the battery into original position and put the screen back into the second section of the sensor (the plastic and stainless steel body).
- Troubleshooting guide
The daily use of the sensor is pretty simple and straightforward.
- If the LCD screen readings shows fading digits, feel free to replace the LR44 battery using this guide.
- In case of accidental switch between Celsius / Fahrenheit display readings, feel free to navigate between these two setups when you need to get to the correct display type.
- If the user gets an ERR display reading, dismantle the screen and mainboard using this guide to get to the sensor’s battery. This usually happens when unprotected wires directly touch the battery of the sensor. Try to isolate the battery from the wires by using tape or any type of this product. After this process, put the screen back into the sensor’s body.