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Your cart is empty.Product Description
PRODUCT SPECIFICATIONS
Product Parameters:
Working voltage: DC24V
Input signal: Potentiometer
Output signal: 0/4-20mA or 0-10V
Display accuracy: Current: 0.1mA; Voltage: 0.01V
Dimension: 100*68*38mm
Package Includes:
1* Signal Generator
WIRING INSTRUCTION
"24V" --- Power Supply +
"0V" --- Power Supply -
"0V" --- Signal Output -
"0-20mA" --- Current Output +
"0-10V" --- Voltage Output +
DEBUGGING PROCEDURES
A. Current display calibration
Clockwise rotating the multi-cycle potentiometer to the maximum, switching the display switch to the right and then using a multimeter to test the actual value of the output current. At this time, you can adjust the current display adjusting potentiometer to make the display value equal to the actual output value.
B. Voltage display calibration
Clockwise rotating the multi-cycle potentiometer to the maximum, switching the display switch to the left and then using a multimeter to test the actual value of the output voltage. At this time, you can adjust the voltage display adjusting potentiometer to make the display value equal to the actual output value.
Todd
2025-09-02 16:03:55
This is a nice tool, and inexpensive. It can be powered by a 24VDC power supply, or I used 2 9V batteries in series. There is one terminal for V-Out, one for I-Out, and one for A- Com. If you do not know what any of these terms mean, this is not the device for you.There are capabilities to edit patameter set for both current and voltage. Another reviewer posted snip of settings and procedure. I used these to get I-Out from a 4-20mA down to a 0-20mA output.Relatively small device, great for portability. Approximately 4" x 2" x 2"I will probably locate a hard case and line it with foam pad to store device.
T. Manning
2025-08-24 12:14:27
For the money, this device is perfect for my needs. It's easy to use and configure. From my purposes, accuracy and stability are not super important, but it seems relatively accurate and stable. I've mentioned this product to many others that have the same requirements as I do, and they've all bought them and have been satisfied.
CG of Vermont
2025-08-10 12:11:21
I was ready to chuck this gizmo into the trash and write a one-star review, because I thought it was useless, at first.My mistake was in believing the label that said 12-24 volts. I had connected a beefy 12 volt supply (actually a little over 14 volts). This device didn't work well at all on a nominal 12 volts.But before giving up, I wired two 9 volt batteries together and gave it an 18 volt supply. Whoa, that's the ticket. With an 18 volt supply, it does what I wanted. I'm not looking for super accuracy with a $30 gadget. But I wanted to be able to put out a variable current so I can test some equipment before it's fully on-line. This unit does that well, as long as you provide enough juice. The display isn't perfectly accurate, but you can monitor this with a VoltOhmMeter. I didn't have much success with the calibration pots on the back side of the board, but it works reasonably well if you can live with it.There is no manual with this, so you better know what you want. I connected the 18 volt battery to 2 terminals. Another terminal is common, and there are 2 more terminals. One of these provides a constant voltage, up to a little above 10 volts (relative to the common terminal.) The other terminal provides a constant current up to about 20 mA, relative to the common terminal.The knob will rotate 4 turns, and it varies the current or voltage from minimum to maximum. What isn't obvious is that the tiny switch is changing the DISPLAY from volts to mA. Only the display. The knob changes the output on both the volt and the milliamp terminals simultaneously, regardless of the switch position. Duh, why wasn't that obvious to me?So it's a surprisingly worth while little tool. I wouldn't use this on a mission to Mars, but for general troubleshooting and testing, it's worth the price and then some.
Craig
2025-08-05 12:36:04
Excellent product and particularly for its price. I've a 20 year old Altek 334A mA Calibrator. It looks and works exactly that same as a new unit made by Pie. Its quality is significantly better than a DROK. However, I've neither the need for its precision nor for its price. As an OEM Electrical Engineer in the paper, film and foil industries, among other applications, I'm currently using the DROK to calibrate Siemens and Rockwell analog input modules for RosemountHarding level sensors, IFM Flow Detectors and Barksdale pressure switches. The only issue I've found with the Drok is that its signal polarity inputs appear to be reverse of that on an Altek. (No big deal) Also, the Altek's internal power source and alligator clip leads are very nice. However, they are not nice enough to support the significant price difference.
Shale
2025-07-19 16:07:59
There is nothing fancy about this unit. It is build to meet a low price point, but does exactly what it needs to do. I measured it against my fluke 87V and it is aprox 0.01 error between my meter and the built in display for the 4-20ma setting. This may be able to be adjusted with the trim pot on the back but I have not looked as it is not a big deal to me. The meter uses a 5 turn pot as the adjustment knob. Unit is a little bit bulky and not designed to be used in a heavy industrial environment, but for the price it is going on my service truck.
pschlosser
2025-07-13 15:34:15
This is a pretty good device and it gets the job done. I used it to test 4-20 mA current loop readers. It could be better, and it's missing a few features other similarly-priced products have. If you want more features, operating instructions, or guidance on how to use the product, you may want to keep shopping.It needs external power. I used 24VDC connected to the 24V and 0V(GND) terminals. I'm measuring current (example 4-20mA current loop) so I connected my input device to the ACOM(-) and IOUT+ terminals. FYI, research suggests 0V(GND) and ACOM are sharing the same ground. When switching the display from V (voltage) to A (current), the output begins at 4.00 mA. Turning the dial increments/decrements in units of 0.1mA, and tops out at 20.0mA. I may need to research further, but the unit doesn't appear to allow output below 4.00mA or above 20.0mA, which can be useful to test under and over-current detection.Features I'd like to see:1. self-powered, perhaps by USB-charged battery2. output variable beyond the typical 4-20mA limits3. with connection to a 4-20mA output source, a means to READ and display the mA value detected.
GaryLehrman
2025-05-30 15:43:47
I may HVAC technician and I purchases to help troubleshoot damper motors on equipment economizers
Altecom
2025-05-17 14:02:33
Fácil de usar , económico y ayudamucho en las calibraciuobnes en banco y en campo.
Brandon
2025-04-26 18:28:08
Using a couple of these to simulate analog inputs on a PLC. Works perfectly. Have not tried the 0-10V functionality as 4-20mA is all I ever use. I really like that this device is in a plastic case. Everything feels solid!I do like that this is "hackable" to be used with a battery. I don't need this but it is nice to have the option.Wire this up to an M12 sensor cable and this can be used out in the field to test wiring as well.Good product and a solid buy if you need to simulate some analog sensors for programming.
Richard
2025-03-13 11:00:17
I needed this to generate a 0-10volt analog control signal to test some ECM motors. It works perfectly. My only comment is that it should state that a 24volt DC input voltage is required. Fortunately the ECM motors I was testing required 24volts to power so I used the same transformer to power the signal generator. The LED display is also very useful and the fine adjustment is as well. A great little device for the price, if you need such a thing.
Customer
2025-02-02 12:04:35
I use two 9-volt batteries in series to power it. Works well for setting up 4-20ma & 0-10v actuators
Sunil Thakur
2024-12-21 13:18:58
It gives accurate signal which helps to use for testing purpose. It could have been marvellous and highly competitive had it have provision for internal battery as a power source.
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