Hello all,
This is my first post but I would like to share my little project with you. I bought my Bodet BT659 on an auction site a while ago
and decided to get rid of the bad impulse relay that the previous owner fabricated himself probably.
I was looking around to find a nice little impulse board and came across hasseb.fi. The owner Hans has created a nice little impulse board, battery powered.
Battery operated master clock controller for slave clocks
- Will work straight out of the box.
- Gives a 24 V pulse every minute, every 30 seconds, or every second. These voltage pulses are used to drive slave clocks used in institutions like factories, offices, and schools.
- Easy to use Windows program to change pulse interval, pulse length and pulse polarity. No driver installation required. Supported operating systems: Windows 7 / 8 / 10.
- Factory calibrated against rubidium atomic clock for 1 second accuracy within a month.
- Crystal fine tuning to recalibrate the device if necessary.
- Will produce either unipolar or bipolar (polarity reversing) clock pulses.
- Provides a maximum output current of 50 mA.
- Very low quiescent current consumption for maximum battery lifetime. The typical battery lifetime using eight AA batteries is between 8-12 months for a one minute pulse clock, but this highly depends on your slave clock device and can be longer or shorter.
- 6-12 VDC input voltage.
- 9 volts battery snap included!
- (Battery holder not included.)
- If you have a slave clock using working voltage less than 24 volts, you can calculate the value for the required series resistor
There is a 3D print file available if you want to print a little enclosure to snap the print onto. Much easier if you want to integrate it inside a flip clock.
1) 3D Printing the enclosure
2) Assembly of the print + 9V battery clip holder
3) Soldering a shunt between pin 6 and 7 (please see schedule in the second post)
4) Putting the unit inside the BT659 enclosure with double sided tape
5) It flips!
This is my first post but I would like to share my little project with you. I bought my Bodet BT659 on an auction site a while ago
and decided to get rid of the bad impulse relay that the previous owner fabricated himself probably.
I was looking around to find a nice little impulse board and came across hasseb.fi. The owner Hans has created a nice little impulse board, battery powered.
Battery operated master clock controller for slave clocks
- Will work straight out of the box.
- Gives a 24 V pulse every minute, every 30 seconds, or every second. These voltage pulses are used to drive slave clocks used in institutions like factories, offices, and schools.
- Easy to use Windows program to change pulse interval, pulse length and pulse polarity. No driver installation required. Supported operating systems: Windows 7 / 8 / 10.
- Factory calibrated against rubidium atomic clock for 1 second accuracy within a month.
- Crystal fine tuning to recalibrate the device if necessary.
- Will produce either unipolar or bipolar (polarity reversing) clock pulses.
- Provides a maximum output current of 50 mA.
- Very low quiescent current consumption for maximum battery lifetime. The typical battery lifetime using eight AA batteries is between 8-12 months for a one minute pulse clock, but this highly depends on your slave clock device and can be longer or shorter.
- 6-12 VDC input voltage.
- 9 volts battery snap included!
- (Battery holder not included.)
- If you have a slave clock using working voltage less than 24 volts, you can calculate the value for the required series resistor
There is a 3D print file available if you want to print a little enclosure to snap the print onto. Much easier if you want to integrate it inside a flip clock.
1) 3D Printing the enclosure
2) Assembly of the print + 9V battery clip holder
3) Soldering a shunt between pin 6 and 7 (please see schedule in the second post)
4) Putting the unit inside the BT659 enclosure with double sided tape
5) It flips!
Comment