Can you help me identify a resistor. It is to allow 220 milliamps to. 300 milliamps. To provide a pulse every 30 seconds to drive a pulse clock. Thanks

 

Tell the colors... something-yellow-black-silver-red ?

 

Tell the colors... something-yellow-black-silver-red ?

Tell the colors... something-yellow-black-silver-red ?

It looks like a light brown. I am trying to set up a circuit that will give me 220 to 230 milliamps to pulse a gents slave clock. . Or could it be orange?

 

Why don't you just take it out of the connectors and measure it's resistance?

 

I would love to measure it but I got the image off the internet. I can try orange and brown resistors I have added the timer I have purchased.

 

Based on standard resistor values, the only resistance would appear to be 33Ω.

 

Excellent Mr Chips. I will give it a try. This maybe ties in with 220-300 milliamps to drive the slave clock.

When my timer arrives I will try it and post how successful it has been.

Thanks

 

I am going to assume that this resistor limits the current to the load.
The desired current will depend on the supply voltage and the resistance of the load.
Start with a 100Ω resistor and measure the voltage across this resistor. Use a lower value resistance for higher current.
The current can be calculated from Ohm's Law, I = V / R.

 

Package Includes:
1 x Timer Switch Module
Pay attention:
The module is an active output, the output voltage equal to the input voltage.
'DC + 'and' load + 'This is an internal short circuit of the poles, but' DC- 'and' load - 'poles during use can not be shorted, otherwise the load can not be controlled on and off, which is equivalent load is been carrying electricity.
Timing range
0.1 seconds (min) to 999 minutes (max) continuously adjustable

Instruction:
Operating Mode:

• P1: trigger signal, the relay is on "OP" time, and then disconnect; in the "OP" time, as follows:
• P1.1: signal is triggered again, invalid
• P1.2: signal is triggered again, the clocking is reset
• P1.3: Signal is trigger again reset, relay off, and stop the clocking;
• P-2: trigger signal, the relay off "CL" of time, the relay on "OP" time, and then disconnect relay after clocking;
• P3.1: trigger signal, the relay is turned on after the "OP" time, the relay off "CL" time, then the operation cycles; if trigger signal again during the cycle, the relay off, stop clocking; the number of cycles times ( "LOP ") can be set.
• P3.2: without triggering signal after power on, the relay is on "OP" time, the relay off "CL" time, then the operation cycles; the number of cycles times ( "LOP ") can be set.
• P-4: signal holding function. If there is trigger signal, clocking is reset, the relay remains on; when the signal disappears, after clocking "OP" time, the relay is off; if another signal is triggered during clocking, clocking will be reset.

How to Set Clocking Range:

• After setting the parameter value at mode selection, press "STOP" button to set the clocking range;
• XXX. The last decimal point lights up, range: 1 second to 999 seconds.
• XX. X The second last decimal point lights up, range: 0.1 seconds to 99.9 seconds
• X. X. X. all 3 decimal points light up, range: 1 minute to 999 minutes.
• For example, if you want to set "OP" as 3.2 seconds, light up the second last decimal point, and set digit display as 03.2.

Parameter Description:

• "OP" - on time, "CL" - off time, "LOP" - number of cycle times (1-999 times, "---" represents infinite loop).
• These parameters are independent of each other, but are shared by each mode. For example, in P1.1 mode, set the on-time "OP" is 5 seconds, if you switch to P1.2 mode, its "OP" will also be 5 seconds.
• In the main interface (display 000), press "SET" button will display "OP" ( "CL", "LOP") and the corresponding time XXX;
• If the mode (such as the mode P1.1, P1.2, P1.3) only has "OP" time, press the "SET" key to display only the "OP" and the corresponding time;
• Some models (such as the mode P3.1, P3.2) have parameters "OP", "CL", "LOP", press "SET" button will display "OP" and the corresponding time, "CL" and the corresponding time, "LOP" and the corresponding number of times;
• After setting mode, in the main interface press "SET" key to see information about the parameters of the current mode, very convenient.

How to Set Parameters:

• 1. First, read the instructions to determine the required operating mode.
• 2. The module is powered up, the display at the current work mode (P1.1 default mode), then enter the main interface; press and hold "SET" button for 2 seconds to enter mode selection interface; then press "UP", "DOWN" button to select the mode (P1.1 ~ P-4).
• 3. Select the mode (such as P3.2), then press the "SET" button, the parameter to be set flashes ( "OP" on-time, "CL" off time, "LOP" cycles ( "---" represents infinite loop)), press(or press and hold) "UP", "DOWN" button to adjust the parameter value; then press the "STOP" key to set the decimal point position to select the clocking range (0.1 seconds to 999 minutes); press the "SET" button to set the next parameters of the current mode, method is same as above.
• 4. After the parameters are set, press and hold "SET" button for 2 seconds, then the current mode will flash once, and then return to the main interface, which means the parameters are successfully set.
• The main interface: If the relay is not in work state, it display "000" with no decimal point), if it is in work state, it has decimal point.
• Mode selection screen: Press and hold the "SET" button to enter; after setting, press and hold the "SET" button to exit back to the main interface.

Relays Enable Mode:

• 1. ON: Relay allows conduction in the "OP" on-time;
• 2. OFF: Relay prohibits conduction and is always closed;
• In the main interface, press the "STOP" button to switch between ON and OFF, the current state will flash, and then return to the main interface. (This feature is an emergency stop function, press on button to disconnect relay)

Sleep Mode:

• 1. "C-P" Sleep mode: five minutes without any operation, the digital display automatically turns off, the program running as usual;
• 2. "O-d" Normal mode: digital display turns on always;
• Press hand hold the "STOP" button for two seconds to switch "C-P" and "O-d" state, the current state flashes and then return to the main interface.

Note:

• 1. The module is an active output, the output voltage equal to the input voltage.
• 2.'DC + 'and' load + ' are internally shorted(connected), but' DC- 'and' load - ' cannot be shorted, otherwise the load cannot be controlled on and off, which is equivalent to load being powered on always.

 

I am going to assume that this resistor limits the current to the load.
The desired current will depend on the supply voltage and the resistance of the load.
Start with a 100Ω resistor and measure the voltage across this resistor. Use a lower value resistance for higher current.
The current can be calculated from Ohm's Law, I = V / R.

You are right. I need to limit the output current. I can try different resistors to achieve the right outcome. I will probably use a 12v power supply.

 

Excellent Mr Chips. I will give it a try. This maybe ties in with 220-300 milliamps to drive the slave clock.

When my timer arrives I will try it and post how successful it has been.

Thanks

At 300ma and 33 ohms, you would need at least a 5w resistor..

 

At 300ma and 33 ohms, you would need at least a 5w resistor..

Thanks. Greatly appreciated.

 

...It looks like a light brown...

Can be 13 Ω, can be 43 Ω. Even 33 Ω.