Set Lcd On-Time; Hour Dosing; Master Menu; Fuse Replacement - TechGrow T-1 Pro Manual

indicate incorrect values and the controller and
sensor may be damaged.

10. Set LCD on-time

Reboot your controller.
After a few seconds you enter the next screen. Select
"System settings":
=> System settings
CO2 Setup
CO2 calibration
>> HOME <<
Press the PTK and select "LCD on-time".
=> LCD on-time 30s
<< BACK <<
Press the PTK and adjust the on-time (maximum 900
seconds) by turning the PTK.
Press the PTK to confirm.
Select << BACK << and press the PTK to return to the
set-up menu. After a few seconds you automatically
return to the main screen.

11. 24-hour dosing

If you want your CO controller to continuously regulate
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and dose, you can switch off the light cell of your sensor.
The controller then no longer responds to day and
night, but is continuously on.
For instructions, consult the sensor's manual and go
through the following steps:
1. Open the housing of the sensor.
2. Locate DIP switch 2.
3. Switch DIP switch 2 to position (ON) with a pen or
small screwdriver.
4. Close the housing of the sensor.
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TechGrow | Innovative Growing Solutions

12. Master menu

Reboot your controller and keep the PTK pressed during
the process. You enter the master menu:
=> Reset2factory
Hardware test
Fast calibration
>> HOME <<
The master menu has three options:
1. Reset2factory: the controller clears all settings and
will be restored to factory settings.
2. Hardware test: all functions of the controller will be
tested.
3. Fast calibration: allows you to calibrate the sensor in
3 minutes. Only use this function if you are familiar
with it. For standard calibration procedure, see
section 14.

13. Fuse replacement

If the T-1 Pro is overloaded or in the event of a short
circuit, the internal fuse will blow. The fuse is placed at
the right of the sockets. To replace the fuse, go through
the following steps:
1. Press the black fuse holder slightly with a
screwdriver and turn it a quarter of a turn
counterclockwise.
2. Remove the fuse holder.
3. Remove the blown fuse.
4. Insert a new fuse with similar specifications in the
fuse holder.
5. Reinstall the fuse holder in the housing of the T-1
Pro.
6. Then press the fuse holder again with a screwdriver
and tighten it by turning it a quarter turn clockwise.
Your T-1 Pro is ready for use again.
NOTE: Damage caused by using the wrong fuse is not
covered by warranty.

14. Calibration of the sensor

The TechGrow T-1 Pro is equipped with a calibration
function that allows you to calibrate the external sensor
yourself in case of large deviations. Our experience has
shown that our sensors can easily function for two years
without calibration. Our sensors are calibrated at the
factory with the highest accuracy. However, in
exceptional cases it might occur that the sensor shows a
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