Supplement for Hakro foil press regulator temperatures
Does what happen on standard Hakro to the regulator temperatures? How temperatures of printing blocks approaches the given temperature decreases the flow current through LED optocoupler MOC3040. Therefore, in once the moment (typically 5°C before the given temperature), comes to appearances only half-wave firings of the output triac (BTW69 or BTW68). Rezulat this continues heatings with only 50 % power. So exists the possibility that and does not achieve the given temperature. Therefore achieves temperatures of printing blocks very questionable and depends on the voltage of city net. This is the consequence factory bad designed regulator of temperature.
The quality solution is our additional complex which turns into Your Hakro ON / OFF regulator temperatures in the PWM regulator temperatures. Advantages are:
Temperatures of printing blocks definitely achieved and keeps within + / 3°C from are given. (2 way better)
Are expected maximal changes of temperature of printing block are within + / 0.5°C (3 way better)
Simple and fast building in (on only three wires)
Does have not adjustings - building in according to the instruction can make the every expert in electronics
The existing indication of work of heater twinkling of different intensity (in the area + / 3°C) gives the visual control of work
Analogic characteristics trigger complexes become unimportant and do not influence more on the work regulator.
On the diagram has been presented the movement of temperature of printing block when has been built in the additional complex for the pulse regulation. The given temperature is 120°C. Measures are performed on the unembedded printing block in the horizontal position. Therefore exists the starting rush temperatures from +9°C. He on the built-in printing block go to +4°C. Small cubes on the first diagram is 10°C, and on other 1°C.
Dimension of complex: 45 * 30 * 12mm (the complex in the irrigation mass)
Guarantee: 3 years
Price of finished complex (the block) without the building in: 100 HRK (13 euro)
On Your zahtijev can make the building in. Building in charges along the price list.
Our experiences: The additional complex is in are built in in more Hakro foil press also because of error free years (the first building in 1995 g.).
Adaptation Hakro foil press regulator of temperature on pt100 the probe
If are not able get the original sensor temperatures can he will make an exchange with pt100 the sensor. Diameter pt100 the sensor must be 3mm.
Will make an exchange the resistor 3K3 (near the pin 13 LM324) with 680R 1 %
With 'Gain' trimer 100K (second from the edge) will adjust voltage on pin 14 chip LM324 on 4,43V
With 'Offset' trimer 200R (near the edge) will adjust that displays equally real temperatures of printing blocks.
On Your zahtijev can make the reconstruction. Reconstruction charges along the price list.