imranahmed
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11th September 2019, 23:47imranahmed replied to a thread 24VDC Single LED Flasher Circuit in Service Manuals, Requests, Repair TipsActually I need indication of Pressure Sensor in CO2 Fire Fighting Control Panel. When signal comes from pressure sensor the 24VDC LED should blink...5 replies | 271 view(s)
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11th September 2019, 21:38imranahmed replied to a thread 24VDC Single LED Flasher Circuit in Service Manuals, Requests, Repair TipsI made attached circuit from electroschematic but I want to make it for 24vdc a d I want 50% duty cycle blinking.5 replies | 271 view(s)
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11th September 2019, 19:30imranahmed replied to a thread Lamp Test Circuit with some other indications. in Service Manuals, Requests, Repair TipsYes you alright sir I got it. Please recommend me more diode other than 1N4001 or 1N4148 with negligible reverse current.15 replies | 693 view(s)
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11th September 2019, 11:28imranahmed started a thread 24VDC Single LED Flasher Circuit in Service Manuals, Requests, Repair TipsPlease recommend me 24VDC Single LED Flasher circuit.5 replies | 271 view(s)
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11th September 2019, 11:22imranahmed replied to a thread Shunt in DC ammeter circuit in Service Manuals, Requests, Repair TipsSorry yes 30A@60mV7 replies | 274 view(s)
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11th September 2019, 11:20imranahmed replied to a thread Lamp Test Circuit with some other indications. in Service Manuals, Requests, Repair TipsI checked all wiring, it is OK but I used diodes 1N5819. You are saying is right diodes are leaky. Please recommend me good diode for my lamp test...15 replies | 693 view(s)
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9th September 2019, 20:48I have DC ammeter and shunt for sending current. Shunt is 30A@60mA and ammeter also have same rating @24VDC supply. But I connected 24VDC line...7 replies | 274 view(s)
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9th September 2019, 20:37imranahmed replied to a thread Lamp Test Circuit with some other indications. in Service Manuals, Requests, Repair TipsI have China make LED attached herewith. They are 24V and no polarity mention.I tested with DC supply of 24V and they glow on both polarities.15 replies | 693 view(s)
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8th September 2019, 09:23imranahmed replied to a thread Lamp Test Circuit with some other indications. in Service Manuals, Requests, Repair TipsBrother all LED's have internal current limiting resistors in natural circuit. And all LED's have 24VDC.15 replies | 693 view(s)
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8th September 2019, 07:46imranahmed replied to a thread Lamp Test Circuit with some other indications. in Service Manuals, Requests, Repair TipsSW1 is common signal for D1,D5 and D9 and below 5 LEDs will get separate signals from pressure sensors. D1,D5 and D9 negative connected with SPST...15 replies | 693 view(s)
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7th September 2019, 23:46imranahmed started a thread Lamp Test Circuit with some other indications. in Service Manuals, Requests, Repair TipsHi everyone, Please let me know that I builds a circuit of Lamp Test and indications of 5 pressure sensors and 3 indication connected to 3 SPST...15 replies | 693 view(s)
About imranahmed
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- Area of specialization:
- Microcontrollers, Power Electronics
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- Biography:
- Student of Electronic Engineering
- Location:
- Karachi,Pakistan
- Interests:
- electronic projects
- Occupation:
- student
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