Measures resistances up to 20M with an accuracy of 0.5%
Measures resistances up to 20M with an accuracy of 0.5%
Tests for continuity with an audible beep and a visual LED indicator
Measures capacitances up to 20mF with an accuracy of 2.0%
Measures frequencies up to 30kHz with an accuracy of 0.5%
Measures temperatures up to 1000C with an accuracy of 2.0% (with optional thermocouple probe)
Key Features
Additional Accessories
K-Type Thermocouple Probe (optional)
Test Leads with Probes
Operating Manual
Carrying Case
Technical Specifications
2 x 1.5V AA Batteries (included)
Up to 200 hours (typical)
133 x 64 x 29 mm (5.2 x 2.5 x 1.1 in)
250g (8.8 oz)
0C to 40C (32F to 104F)
-20C to 60C (-4F to 140F)
The MetroQ MTQ 109+ Multimeter is an excellent choice for anyone requiring a reliable, feature-rich device for a wide range of measurement applications.
MetroQ MTQ 109+ Multimeter Component DocumentationOverviewThe MetroQ MTQ 109+ Multimeter is a high-precision, compact multimeter designed for accurate measurements of voltage, current, resistance, and other electrical parameters. It features a high-resolution LCD display, automatic range selection, and data hold functionality. This component is ideal for various applications, including industrial automation, electrical testing, and prototyping.Technical SpecificationsMeasurement ranges:
+ Voltage: 0-1000V AC/DC
+ Current: 0-10A AC/DC
+ Resistance: 0-20M
+ Frequency: 0-10kHz
Accuracy: 0.5% for voltage and current measurements, 1% for resistance measurements
Display: 4-digit LCD display with automatic backlight
Interface: RS-232 serial communicationProgramming Examples### Example 1: Basic Measurement using Python (pyserial library)In this example, we'll use the pyserial library to read voltage measurements from the MTQ 109+ Multimeter.Hardware RequirementsMetroQ MTQ 109+ Multimeter
Serial cable (RS-232)
Computer with Python installedSoftware RequirementsPython 3.x
pyserial library (install using `pip install pyserial`)Code
```python
import serial# Open the serial port
ser = serial.Serial('COM3', 9600, timeout=1) # Replace COM3 with your serial port# Set the multimeter to measure voltage
ser.write(b'VOLT
') # Send the command to measure voltage
ser.flush()# Read the measurement
response = ser.readline().decode().strip()
print(f'Voltage: {response} V')# Close the serial port
ser.close()
```
### Example 2: Data Logging using Arduino (Arduino IDE)In this example, we'll use an Arduino board to read measurements from the MTQ 109+ Multimeter and log them to a CSV file.Hardware RequirementsMetroQ MTQ 109+ Multimeter
Arduino board (e.g., Arduino Uno)
Serial cable (RS-232)
MicroSD card and reader (for data logging)Software RequirementsArduino IDE
SD library (included with Arduino IDE)Code
```c
#include <SD.h>
#include <SoftwareSerial.h>// Define the serial pins for the multimeter
const int rxPin = 2;
const int txPin = 3;// Create a SoftwareSerial object for the multimeter
SoftwareSerial multimeter(rxPin, txPin);void setup() {
// Initialize the SD card
SD.begin();// Create a file for data logging
File logFile = SD.open("log.csv", FILE_WRITE);// Write the header row
logFile.println("Date,Time,Voltage(V)");
logFile.close();
}void loop() {
// Set the multimeter to measure voltage
multimeter.print("VOLT
");
multimeter.flush();// Read the measurement
String response = multimeter.readStringUntil('
');
float voltage = response.toFloat();// Log the measurement to the CSV file
File logFile = SD.open("log.csv", FILE_APPEND);
logFile.print(millis());
logFile.print(",");
logFile.print(voltage, 2);
logFile.println();
logFile.close();delay(1000); // Log measurements at 1 Hz
}
```
These examples demonstrate how to use the MetroQ MTQ 109+ Multimeter in different contexts. The first example showcases basic measurement using Python, while the second example illustrates data logging using an Arduino board.