When you looking for 2-20 ma generator, you must consider not only the quality but also price and customer reviews. But among hundreds of product with different price range, choosing suitable 2-20 ma generator is not an easy task. In this post, we show you how to find the right 2-20 ma generator along with our top-rated reviews. Please check out our suggestions to find the best 2-20 ma generator for you.
Reviews
1. LCD Diode Triode Capacitance ESR Meter for MOS/PNP/NPN L/C/R GM328 Functional Transistor Tester Frequency Square Wave Generator
Feature
Display: 128*64 LCD Backlight BacklightCurrent: 2mA Input
Voltage: 9V Current: Approx. 20mA Power Supply: 1 * 9V Battery(NOT Included)
PCB Size: 7 * 7cm / 2.75 * 2.75in Product Weight: 47g / 1.67oz
Package List: 1 * Transistor Tester 1 * Test Cable
Description
Features:Digital LCD backlight display for easy readings, can display measured data and graphics.
Micro-controller uses 8MHz external crystal, the measurement accuracy is better.
One key operation(long press the button and enter the menu selection), automatic power shutdown.
Main chip is the DIP, easy for electronic enthusiasts to DIY or update the main chip.
Can be powered by 9V battery(not included).
Can automatically detect NPN, PNP bipolar transistors, N-channel and P-channel MOS FET, JFET, diodes, dual diode, thyristor small power unidirectional and bidirectional thyristor.
Support 2 resistors measurement, also support potentiometer measurement.
Resistance measurement resolution is 0.1 ohms, 50M ohms can be measured.
Automatically test the pins of a component and show on the display.
Measure the gate threshold voltage and gate capacitance of the MOSFET.
Measure bipolar transistor current amplification factor and base-emitter threshold voltage.
Can be used as signal generator and frequency meter: built-in square signals from 1Hz-2MHz and can generate 1-99% PWM(pulse width modulation) signals.
Notice:
Before measuring capacitance, the capacitor must be discharged, otherwise very likely damage the meter.
Users need to add an interface with some components by themselves if they want to measure the frequency(1Hz-2MHz)!
Specifications:
Resistance Measurement: Max. 50M
Resistance Resolution: 0.1
Capacitance Measurement: 25pF~100mF
Capacitance Resolution: 1pF
Screen Size: 5.5 * 3cm / 2.16 * 1.18in
2. 4-20mA 0-10V Analog Simulator Generator for PLC inputs, Valves, Instrumentation
Feature
Simulate a 4-20mA current loop or current source signalSimulate a 0-10VDC signal
Analog testing and troubleshooting
Signal generator
Description
Test the most popular analog signals 4-20 mA 2-wire device 4-20 mA current loop generator (loop generated off of 2 AA batteries so no external power supply required) Includes carrying case and alligator leads. 0-10VDC current loop generator (voltage generated off of 2 AA batteries so no external power supply required) The Loop Simulator Professional was developed to assist maintenance personnel and integrators in analog input testing, troubleshooting and application development. This 3-in-1 device simulates a 2-wire loop powered transmitter, provides 4 - 20mA current source and 2 - 10V voltage source. This is one of our best selling devices with so many uses such as simulation for startup assistance, maintenance troubleshooting, HVAC systems, etc. It can simulate most any analog device. Examples would be flow meters, pH meters, dissolved oxygen meters, turbidity meters, pressure transducers, temperature sensors, level sensors, ultrasonic measurement, etc3. Yosoo GM328 Lcd Display Transistor Tester ESR Meter Cymometer Square Wave Generator
Feature
using the latest 2014 version V1.11 software, M328 chip, more featuresmicro-controller uses 8MHz external crystal, measurement accuracy is better.
LCD using 12864 LCD screen that can display measured data and graphics.
main chip dual in-line with a socket, ideal for electronics enthusiasts upgrade or replace the chip.
Current: When 9V voltage, stable operating current of about 20mA.
Description
LCR-T3 graphical multi-function tester resistor capacitor + SCR + diode + transistor + mos tube inductance LCD 12864 LCD display, with backlight , backlight color is generally yellow-green
9v battery powering stacked . If prolonged power , you can use two 8.4v lithium battery pack consisting of
Function:
- Add boot voltage detection function
- Automatic detection of NPN and PNP transistors , N -channel and P-channel MOSFET, diodes (including dual diode) , thyristors , transistors, resistors and capacitors and other components , - Automatic test out the pin element and displayed on the LCD
- Can be detected to determine the transistor emitter forward bias voltage of the transistor , MOSFET protection diode and the amplification factor of the base
- Measure the gate threshold voltage and gate capacitance of the MOSFET
- 1602 lcd display uses LCD (12864 LCD with backlight)
- High test speed , valid component test: 2 seconds (except in the larger capacitor of large capacitance measurement also takes a long time , the measured time of one minute is normal)
- One button operation , power-on test , get a key
- Power consumption off mode : less than 20 nA of
- Auto power off function to avoid unnecessary waste , saving battery power , improved battery life.
Specifications
Test ranges: Inductors, capacitors , diodes, dual diode , mos, transistor, SCR , the regulator, LED tube , ESR, Resistance,Adjustable potentiometer
Resistance: 0.1 ohm resolution, maximum 50M ohm
Capacitor: 25pf -100,000 uf
Inductors: 0.01mh-20H
Package include:
1 x LCR-T3 Graphical Multi-function Tester
Notice: Before measuring capacitance , the capacitor must be discharged , otherwise very likely damage the meter
4. Analog Current Loop Simulator and Tester 4-20mA
Feature
The Current Loop Simulator was developed to assist maintenance personnel and integrators in 4 -to 20 mA analog input testing, troubleshooting and application development.It simulates a 2-wire loop powered transmitter.
Description
The Current Loop Simulator was developed to assist maintenance personnel and integrators in 4 -to 20 mA analog input testing, troubleshooting and application development. It simulates a 2-wire loop powered transmitter.5. DROK 4-20mA Signal Generator, DC 12-30V Constant Current Source, Stable Signal Source with 0.01mA Adjustable Potentiometer, Voltage, Current LED Display
Feature
Knob Operation: DROK signal generator kit has multi-ring (5 * 360) potentiometer knob operation, stepless fine adjustment, in response to the output immediately, no delayPrecise Regulation Design: This generator is provided with potentiometer to adjust the actual fineness which is up to 0.01mA
Wide Power Supply Range: Our signal source is available for wide power supply range (DC12-30V), DC 12V or 24V, current 18mA. The power port has a polarity protection, which power reverse does not work, do not burn components.
Effortless Installation: Easy to install, standard 7943 shell, panel size: 79mm * 43mm * 25mm,hole size: 76.5mm * 39.2mm
Wide Application: The product can be used: signal source, valve adjustment, inverter control, PLC debugging, instrumentation test, analog transmitter output.
Description
Technical Parameters:Multi-ring (5 * 360) potentiometer knob operation, stepless fine adjustment, in response to the output immediately, no delay
Potentiometer to adjust the actual fineness of up to 0.01 mA
Power supply: DC12-30V,DC 12V or 24V, current 18mA, power port has a polarity protection, power reverse does not work, do not burn components.
4-bit 0.36-inch LED, the display range: -1999-9999, can be set to the number of 0,1,2,3 decimal points
20mA output: the maximum output current of 24mA.
12V DC power supply: output load impedance range between 0-350 ohms
24V DC power supply: output load impedance range between 0-800 Ohms
The test output is normal, you can use a multimeter (DC current file) short "4-20mA output" terminal value and the comparison shows that the multimeter readings are the same.
Easy to install, standard 7943 shell, panel size: 79mm * 43mm * 25mm, hole size: 76.5mm * 39.2mm
The product can be used: signal source, valve adjustment, inverter control, PLC debugging, instrumentation test, analog transmitter output.
Redefine the display function:
If the menu requires a password, the default password is 1234, flashing display.
Such as, if it is used to control a device for -90 degrees to +90 degrees action.
The default display is Current.
It can also be redefined as: 4mA display -90.00, 20mA display +90.00 (2 decimal point), this can be displayed as 4-20mA -90.00 to 90.00 (2 decimal point).
Package included:
1x 4-20mA Signal Source Signal Generator
6. DROK Small LCD 4-20mA Signal Generator, DC 15-30V Current Transmitter with 9-Segment Programmable Output, High Accuracy Load Tester PLC Analog Simulator Panel Gauge, 2-Wire Output System
Feature
CLEAR LCD DIGITAL DISPLAY: This signal generator kit owns clear LCD monitor and back-light for you to check the output current and the setting value, clear and handy.9-SEGMENT PROGRAMMABLE OUTPUT: This current transmitter has 9 segments programmable output (can simulate the dynamic test in a real environment. There are three parameters of every segment needing to be set: running time(t), initial current (A), termination current(b).
2 WORKING MODES: Our analog signal generator has two working modes for choosing: Manual mode & Dynamic output mode, which can fulfilled your different need.
SIMPLE ROTARY ENCODER ADJUSTMENT: Our signal conditioner is provided with smart digital rotary encoder adjustment (if use potentiometer which is easy to be affected by the humiture, the value of the impedance will change.)
REVERSE CONNECTION PROTECTION: Our digital signal generator can be reversed connected (two-wire system, no matter positive or reverse connecting, the meter can work normally and will not be burnt.)
Description
Product Parameters:Output current: 3-21mA
Power supply voltage: 15-30V
Sampling impedance: 10-500ohm
Display accuracy: 0.05
Output accuracy: +/-0.5%
Overall dimension (front): 79.5*42mm
Overall dimension (back): 72.5*39.5mm
Mounting panel / case opening dimension: 77*40mm
Two Working Modes:
Manual Mode
Dynamic output mode
Package Includes:
1* 4-20mA Signal Generator
7. T-king(TM) LB02 Resistance Current Voltmeter signal generator source Process calibrator 4-20mA/0-10V/mV LCD display Update from LB01
Feature
Increase disposable fast blow fuse, to avoid false instrument damage caused by voltage 220V plugAll functions all use internal electronic switch,input and output has a corresponding button
In addition to having a conventional signal input and output functions, as well as resistance
Two connector terminals, any level, regardless of the input and output all use these two terminals
Thermal resistance, resistance to external excitation output current is reduced sensitivity.
Description
Description:This instrument can output/measurement the following signals:Current signal/Voltage signal/mV signal;8 kinds of thermocouple(E,K,B,S,T,R,J,N) signal;Resistance signal;Thermal resistance(Pt100,Cu50)signal,containing 14 input,15 output,analog meter site can be read or the vast majority of quantities.V,mV,mA, input and output has a corresponding button,call directly,no combination of keys,quick and easy operation.Small instrument,Rich functionality
Update Feature:
1. Increase disposable fast blow fuse, to avoid false instrument damage caused by voltage 220V plug
2. In addition to having a conventional signal input and output functions, as well as resistance, PT100.Cu50 RTD, thermocouple eight kinds of input and output signals can be output, measuring negative temperature, very powerful
3. Thermal resistance, resistance to external excitation output current is reduced sensitivity. Increase the output and the measurement accuracy. For both constant and non-constant resistance measurement method, expanding the use of the instrument
4. All functions all use internal electronic switch
5.V.mV.mA. Resistance of the input and output has a corresponding button, directly call without advance menu, no combination of keys
6. Only two connector terminals, any level, regardless of the input and output all use these two terminals;
Include:
1 x Calibrator
1 x Pair test pen
1 x USB line
1 x Carrying box
1 x Manual
8. Wadoy Round Digital LED Battery Indicator Gauge For Forklift Car Scooter Motorcycle ATV Boat Generators (12V-72V) 12V 24V 36V 48V 72V
Feature
Works for: 12V / 24V, 36V, 48V / 72V batteryLED Flash for low charge & high charge warning,10 segment LED Bar Graph display
Fits standard panel cut-out. ( 2" Round cut out, 2.3" outside diameter)
Memory option to recall lst charge level. silent operation,no moving parts
Non-original aftermarket part
Description
SpecificationsWorks for: 12V / 24V, 36V, 48V / 72V battery
Operating and storage temperature: -40 Celsius ~ 85 Celsius
Operating Current: 20 mA nominal
Humidity: 95% RH (non-condensing) at 32 Celsius or more for 2 hours
Size: 2" Round cut out, 2.3" outside diameter
Features
LED Flash for low charge & high charge warning,10 segment LED Bar Graph display
Fits standard panel cut-out
Memory option to recall lst charge level
silent operation,no moving parts
Warranty Policy
All products sold by Wadoy are covered by 3 months warranty.
Wadoy endeavours to provide customer with new replacement for any product within 15 days from the date of purchase.
If a customer received a product which is faulty or damaded on arrival, please notify us within 15 days.
Beyond 15 days,Wadoy will provide customer a refund, exchange or repair the product.
9. Dwyer ASG Analog Signal Generator. Troubleshoot transmitters, transducers, motors and actuators with ease and accuracy. Generates 0-10 VDC in 1V increments or 4-20 mA in 2 mA increments.
Feature
DWYER ASG: Analog Signal Generator. Ramp Function, Bar Graph LED, Selectable Auto Shut Off.IDEAL FOR: Troubleshooting transmitters, transducers, motors and actuators and calibrating transducers, displays, and other analog signal devices
GENERATES: 0 to 10 VDC signal in increments of 1 volt or a 4 to 20 mA signal in increments of 2 mA.BAR GRAPH: LED bar visually indicates analog signal level and improves visibility in dark areas
CONTINUOUSLY RAMPS: to user defined maximum and minimum values with user-defined ramp interval timing. Auto shut-off conserves battery life.
IN THE BOX: Dwyer ASG Analog Signal Generator, 6 ft (1.8 m) leads with alligator clips, 120 VAC plug-in adapter, protective carrying case and instruction manual
Description
Dwyer ASG Analog Signal Generator. Ramp Function, Bar Graph LED, Selectable Auto Shut Off. The pocket size model ASG Analog Signal Generator is an ideal tool for troubleshooting transmitters, transducers, motors and actuators. The unit generates a 0 to 10 VDC signal in increments of 1 volt or a 4 to 20 mA signal in increments of 2 mA. An LED bar graph visually indicates analog signal level. The model ASG will also continuously ramp to user defined maximum and minimum values with user defined ramp interval timing. Units are furnished with 6 ft (1.8 m) leads with alligator clips, 120 VAC plug-in adapter, protective carrying case and instruction manual. Specifications: Impedance: Voltage: 1000 Ohms min.; Current: 300 Ohms max. Output: 0 to 20 mA (2 mA increments) 0-10 VDC (1 VDC increments). Resolution: 2 mA (current), 1 VDC (voltage). Ramping Time Intervals: 2 to 20 s. (2 s. increments). Ambient Operating Temperature: 32 to 122F (0 to 50C). Power Requirements: 9 V alkaline battery, installed functional, user replaceable or 120 VAC (provided). Auto Shutoff Times: 2 to 20 m. (2 m. increments) (6 m. default). Electrical Connections: 6' (1.8 m) with alligator clips. Weight: 3.2 oz (without battery).10. 4~20mA/0~10V Current signal generator Source PLC Valve Calibration Simulator
Feature
1. Mainly used for industrial and process calibration instruments ready PLC electric valves and other debugging2. The instrument is simple to operate, long standby time, small size, light weight, high accuracy
3. The selection of high-quality 4mm banana plugs turn all copper alligator clip test leads
4. Each input and output range display features, such as 4 ~ 20mA corresponding display 0 to 100, can be arbitrarily set
Description
1.Active Current: Active current 0 ~ 24mA output, the maximum load of 500 ohms 0.01mA resolution
2.Passive Current: 0 ~ 24mA output passive current resolution 0.01mA
3.Maximum supply 28V, input impedance of 100 ohms
4.Output voltage: 0 ~ 11V output voltage resolution 0.01V
5.Power supply: USB powered or rechargeable
6.Screen Information: 128 * 64 dot matrix LCD screen graphics
7.Dimensions: 90 * 70 * 28mm
Package Included:
1 x MR signal Current signal generator
1 x Pair black and red test line
1 x USB Cable
1 x Carrying bag
11. 4-20mA Digital LCD PLC Signal Generator Source Current Transducer with 9-Segment Programmable Output High Accuracy Load Tester PLC Analog Simulator 2-wire Output System
Feature
comes with LCD screen (with backlight)9 programmable output (can simulate the actual environment of dynamic testing, each section can be set up t running time /A current /b current)
Digital rotary encoder adjustment (the use of potentiometer, easily affected by temperature and humidity, the resistance value will change)
Can be connected to the positive and negative (two-wire system, no matter how wiring, can work, will not burn meter)
High precision, good linearity (display accuracy of "0.05" of the decimal point, the actual output accuracy of + 0.5%)
Description
This current signal generator is the combination of high performance and exquisite workmanship. Gainsimported chips, it features ultra-low power consumption, less heat, more stable output. The shell is beautiful and easy to install.
Specifications:
Output current: 3mA- -21mA
Power supply voltage: 15V- -30V
Sample resistance: 10 -500
Display accuracy: 0.05
Output accuracy: 0.5%
Dimensions (front) : 79.5 x 42mm/3.13 x 1.65inch
Dimensions (after) : 72.5 x 39.5mm/2.85 x 1.55inch
Installation panel: 77 x 40mm/3.03 x 1.57inch
System operation:
1.The working mode of the signal generator is two: 1, manual adjustment mode; 2, dynamic output mode;
2.Manual mode adjustment output current: rotary encoder knob, clockwise current increase, counter clockwise current decreases;
3.The manual mode saves the output value, short press encoder knob, after the opening, the screen shows "...", saved successfully, output the next boot is the value stored value; when debugging equipment, we need to adjust the random output values, as long as you don't press the encoder knob after reboot or the original save this value;
4.Dynamic output mode: is a programmable set of good curve continuous automatic output;
5.Parameter setting: If you have problems with the parameter setting, pls feel free to let us know.
Package Included:
1 x 4-20mA Signal Generator
12. Meacon Process Calibrator Signal Generator Loop Calibrator 4-20ma 0-10v Output Mx-702-p-2
Feature
Increase disposable fast blow fuse, to avoid false instrument damage caused by voltage 220V plugIn addition to having a conventional signal input and output functions, as well as resistance, PT100.Cu50 RTD, thermocouple eight kinds of input and output signals can be output, measuring negative temperature, very powerful
Thermal resistance, resistance to external excitation output current is reduced sensitivity. Increase the output and the measurement accuracy. For both constant and non-constant resistance measurement method, expanding the use of the instrument
Only two connector terminals, any level, regardless of the input and output all use these two terminals
Easy to use and carry, can be used about 6-10 hours after full charge
Description
Process Calibrator has a multiple signal Output and measurement,including voltage, current and thermoelectric.With LCD screen and silicone keypad, simple operation, longer standby time, higher accuracy and programmable output. Its widely used in LAB Industrial field, PLC Process Instrument, Electric value and other areas debugging.
13. WINGONEER Mini 2.0 Hi-fi Electronic Stereo Audio Assembled Amplifier Portable AMP 10W+10W 2 Channel Class-D DC 12V Digital Booster Amplifier Board Module for CD MP3 MP4 PC Speaker Car Auto Usage
Feature
2.0HIFI dual channel with each channel output 10W; high efficiency of 90%It uses PAM8610 chip that is 10W (per channel) D-level stereo audio amplifier
With over-current/over-temperature/short-circuit protection, thus safe to use
Low THD+N(0.1%) without filter; small static current; low power consumption; small heating generator
Low EMI; with power off/ noise canceling function; little noise generator
Description
WINGONEER trademark Reg.NO:4747611This board uses PAM8610 chip, PAM8610 chip is 10W (per channel) D-level stereo audio amplifier.
This board has over current / temperature / short circuit protection.
Feature:
Work: D Class
Quiescent Current: 20mA
Efficiency: 90%
Rated output power: 10W +10 W (8)
Frequency response: 20Hz to 50KHz
Operating voltage: DC7.5-15V
Recommended supply voltage: 12V, the center PIN of 12VDC is +.
PCB board size: (40 * 40) mm
NOTE:
It is NOT acceptable to connect the - outputs of the L & R speakers together.
Package includes:
1x WINGONEER Mini Amplifier Board
14. LB02 Resistance Current Voltmeter Signal Generator Source Process Calibrator 4-20mA/0-10V/mV LCD Display Update from LB01
Feature
1.Compact and powerful,contains 16 input and 19 output functions2.Overall security protection and easy to operate
3.Frosted surface has high toughness and high strength
4.The internal circuit is welded with high speed automation equipment
5.Panel layout is reasonable
Description
After your order is confirmed,the product will be sent to your hands for 7-13 workdays.Feature:
1. Expect with the conventional signal input and output functions,as well as resistance,Pt100,Cu50 RTD,thermocouple input-output 8 kinds of signals,very powerful
2. All functions all use internal electronic switch,and some other brands on the market,unlike DIP switch auxiliary products need to exclude the impact of the mechanical structure life,but also improves the ease of use
3. Two connector terminals,any level,regardless of the input and output terminals of the full use of these two,no longer have to forget plug lead damage to the meter or equipment to worry about
4. V,mV,mA, input and output has a corresponding button,call directly,without advance menu selection,thermocouple,RTD input and output it is only after entering the function corresponding mV or files left arrow or right arrow to select it,the operation is very simple,no combination of keys,quick and easy operation
Update Feature:
1. Increase disposable fast blow fuse, to avoid false instrument damage caused by voltage 220V plug
2. In addition to having a conventional signal input and output functions, as well as resistance, PT100.Cu50 RTD, thermocouple eight kinds of input and output signals can be output, measuring negative temperature, very powerful
3. Thermal resistance, resistance to external excitation output current is reduced sensitivity. Increase the output and the measurement accuracy. For both constant and non-constant resistance measurement method, expanding the use of the instrument
4. All functions all use internal electronic switch
5.V.mV.mA. Resistance of the input and output has a corresponding button, directly call without advance menu, no combination of keys
