DC 5-28V 4-20mA LED Digital Signal Generator Rechargeable Handheld Analog Generator Adjustment
- Stock: In Stock
- Model: EB0041509
- SKU: EB0041509
Features:
1. Easy to use, convenient wiring, knob operation, the output signal immediately output after adjusting, no delay.
2. Voltage range: the input power is DC 5-28V, suggested the power supply is DC 12-24V.
3. The protection function is perfect: with the input voltage reverse connection protection, the power reverse connect, the instrument does not work, it will not be damaged by the reverse.
4. Standard current output range: 4-20mA current output can be generated by manually adjusting the potentiometer on the product, which is used for the occasion of 4-20ma output of current simulation.
5. The current regulation is very stable: the electric current is regulated by the wire-wound potentiometer, and the current is adjusted smoothly, which avoids the faults such as the resistance mutation which is often produced by the carbon film potentiometer.
6. With the current meter, display precision.
7. With dial, it can quickly locate and identify the running state of the equipment.
8. Fixed current output value: the output current can be automatically and constant at the setting point according to the customer's adjustment, and also can be used as a constant current source, and the current output should be no more than 20MA when used as a constant current source.
9. If the test output is normal, use a multimeter(DC current ) to connect the "current +" "current -"terminals to show whether the values are consistent with the multimeter reading.
10. Can be used in signal source generation, valve regulation, frequency converter control, PLC debugging, instrument test, led test, analog transmitter output.
Specifications:
Current: 0-20mA
Size: 8.5 x 7 x 4.2 cm / 3.34 x 2.75 x 1.65 inch
The output impedance matching problem of the current generator:
The output signal must meet the following requirements:
According to the formula: I=U/R (current = voltage divided by resistance)
So your power voltage divided by your signal internal resistance is the maximum current that your signal receiver can generate.
In addition, our current generator has some internal resistance.
So here's the formula:
Power supply voltage/(customer's signal resistance + internal resistance of our current generator) = constant current output
Since the power supply of our module is 4-35v, the constant current generated by the module will not be sufficient if the power supply is low and the customer's internal resistance is larger.
The signal matching requirements of our module are given below:
Power supply is 24V, the signal internal resistance ≤ 1000 Ω
Power supply is 12V, the signal internal resistance ≤ 500 Ω
Power supply is 5V, the signal internal resistance ≤ 200 Ω
If the internal resistance of your signal is higher than the above parameters, it can be used to solve the problem of insufficient current supply of the constant current source by improving the power supply voltage or by reducing the internal resistance of the signal. Note that the supply voltage cannot be increased to more than 28V.
Package included:
1 x 4-20mA current signal generator with shell
Shipping Time
After you successfully placed an order at RenhotecIC.com, you will receive a confirmation email with your invoice. Once your order is shipped, you will be emailed with the tracking information of your package. Also, you can choose your preferred shipping method during the checkout process. Kindly advise: please select DHL/FedEx if you need our product urgently.
The timeline of the whole shipping process is shown below:
The total delivery time is calculated from the time your order is successfully placed to the time received. Total delivery time is broken down into processing time and shipping time.
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Shipping Rates
You could choose the shipping method based on your preference during checkout, different shipping methods will apply different rates and shipping times. Please check the following chart for detail:
You could choose the shipping method based on your preference during checkout, different shipping methods will apply different rates and shipping times. Please check the following chart for detail:
| Shipping Method | Shipping Rates | Shipping Times |
| Flat Shipping (Promotion) | $10 | About 5-30 Working Days to Worldwide (Only include Monday to Saturday ) |
Standard Express（0.5KG starting price listed） | Based On Weights | About 5-15 Working Days to Worldwide (Only include Monday to Saturday ) |
Priority Express （0.5KG starting price listed） | Based On Weights | About 3-7 Working Days to Worldwide (Only include Monday to Saturday ) |
In addition, the transit time depends on where you're located, the shipping method you choose, and where your package comes from. We will keep you informed of any problems here to help you get your order as soon as possible.
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