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by Tech_Marco
Wed Jul 08, 2009 7:41 pm
Forum: RF Wireless Controller
Topic: FCC Part 15 Requirements
Replies: 7
Views: 2317

Re: FCC Part 15 Requirements

New coming system will get the sticker on both
by Tech_Marco
Fri Jul 03, 2009 3:55 pm
Forum: DSP X7
Topic: How to connect the PS to the tube correctly
Replies: 1
Views: 1222

Re: How to connect the PS to the tube correctly

Do not use soldering iron trying to connect wires to the laser tube as doing heat from the iron will cause the pin to expan and contract once it cool down. You may cause 'air leak' to the tube. Don't do that! Always use a 'cap' or coil the wires on the pins, then put some silcon glue to hold it tight.
by Tech_Marco
Thu Jul 02, 2009 8:52 am
Forum: Digital/ Analog Meter
Topic: DC voltage and current panel Meter wiring
Replies: 1
Views: 1563

Re: DC voltage and current panel Meter wiring

Red: +5V Black: Ground Green: +Input Blue: Ground (note: please do not count on the color shows on the picture. Always double check the print mark on the pcb) For a current meter, an isolated power module is required as it need an independent power sources to work with. Volt meter is ok but it may n...
by Tech_Marco
Wed Jun 24, 2009 5:47 pm
Forum: DSP X7
Topic: Steeper current adjustment?
Replies: 2
Views: 1408

Re: Steeper current adjustment?

I just received the 3 axis stepper driver and it appears there is no current adjustment for the steppers. Does it have the ability to adjust current on the board? Formula: Vref/5Rs Vrf = Voltage at pin#10 Rs= the current resistor (the bigger one you seem on the board, usually 2Watt) Example: 1.0ohm...
by Tech_Marco
Wed Jun 24, 2009 5:38 pm
Forum: DSP X7
Topic: 35 Watt Co2 Laser Power Supply
Replies: 2
Views: 1359

Re: 35 Watt Co2 Laser Power Supply

Hello Dr. We do have two version of the 35W CO2 power supply. One looks exactly like the picture we used for posting. Another one comes with connectors that fit most small engraving machine. Can you shoot a pictures to let me see which on you have. FYI, most CO2 power supply have a standard output l...
by Tech_Marco
Sat Jun 20, 2009 1:10 pm
Forum: RF Wireless Controller
Topic: FCC Part 15 Requirements
Replies: 7
Views: 2317

Re: FCC Part 15 Requirements

Yes, the 1st 8 button from the 12ch Tx can control a eight channel remote system (8A). But I didn't spend too much time to try everythikng out but simply testing whether the relays were energized with the 12ch tx unit on a 8channel receiver. If you can order in quantity say 100 or more, I can have m...
by Tech_Marco
Sat Jun 20, 2009 1:07 pm
Forum: RF Wireless Controller
Topic: Need an over view for this 2 Channel RF Wireless Controller
Replies: 4
Views: 2742

Re: Need an over view for this 2 Channel RF Wireless Control

See the basic relay connection: http://www.lightobject.info/viewtopic.php?f=12&t=316 NO = Normally opned (become closed contacted once relay is energized) NC = Normally closed (become opened contatced once relay is energized) Relay is just like a switch but with a electric control(solenoid) to t...
by Tech_Marco
Fri Jun 19, 2009 4:09 pm
Forum: LED
Topic: LED Degrees?
Replies: 1
Views: 2266

Re: LED Degrees?

ATLien wrote:What the difference between IR LED degrees, such as 60, 45, and 30 degree IR LED's?

Thanks


It's mean the reflection beam angle. Wide angle like 60 degree will cover more area but got dimmer in average. Narrow angle like 20~30 will cover less area but brighter
by Tech_Marco
Wed Jun 17, 2009 7:49 pm
Forum: RF Wireless Controller
Topic: 2 remotes
Replies: 2
Views: 1368

Re: 2 remotes

I think you have to have both remotes on the same digital code. The instructions should tell you how to do this. I probably involves soldering. Of course they need to match the frequency of the reciever as well (this you cannot change). There are about 3 different model out there even with the same...
by Tech_Marco
Wed Jun 17, 2009 7:41 pm
Forum: RF Wireless Controller
Topic: FCC Part 15 Requirements
Replies: 7
Views: 2317

Re: FCC Part 15 Requirements

Concerning Model RF8A, the 8 Channel RF Remote controller: I need a system with a low transmit power to meet FCC Part 15 regulations that require the field strength does not exceed 200 microvolts/meter at a measured distance of 3 meters. Does this module comply? Does the maximum power level exceed ...
by Tech_Marco
Mon Jun 15, 2009 5:01 pm
Forum: AC Power Frequency Meter
Topic: HB404 Frequency Meter
Replies: 0
Views: 8361

HB404 Frequency Meter

Manual can be applied to both Blue and Red display.
Plus, there are two sub model: with control or without control

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