Light Country(Changshu) Co.,Ltd
Light Country (Changshu) Co.,Ltd Professional Thermostat & Switch Manufacturer from Taiwan for more than 30 years.
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DM 3 1/2 and 4 1/2 Digital Voltage Amperage Meter Frequency meter Tachometer Count meter, high accuracy, widely used in industrial
1. Features and advantages:
a). Classical hareware design,stable performance.
b). High accuracy.
c). Rich measuring range available.
d). With decimal point setting function.
2. Model specification:
3. Technical parameter:
1). DC DIGITAL VOLTMETER,AMMETER
Electrical parameter:
| Max.display | 1999 (3 1/2); 19999 (4 1/2 ) |
| Input mode | Single ended input |
| A/D converter | Dual integral |
| Sampling rate | About 2.5 times/second |
| Overflow indication | 3 1/2:“-1”or“1”; 4 1/2:“0000”or“-0000”LED flash |
| Polarity display | Only “-”display |
| Display | Red LED |
| Power supply | 3 1/2:DC 5V ±10%; 4 1/2:DC 5V ±0.2V |
| Working invironment | 0～50℃ <85%RH |
Measuring range and specification:
◆ DC digital voltmeter:
| Model | Range | Resolution | Input Impedance | Measuring Accuracy | Input protecting |
| DM3 □-DV0.2 | 199.9mV | 100uV | 5MΩ | ±0.5％F.S ±2Digits | 5V |
| DM3 □-DV2 | 1.999V | 1mV | 5MΩ | ±0.5％F.S ±2Digits | 5V |
| DM3 □-DV20 | 19.99V | 10mV | 2MΩ | ±0.5％F.S ±2Digits | 24V |
| DM3 □-DV200 | 199.9V | 100mV | 2MΩ | ±0.5％F.S ±2Digits | 240V |
| DM3 □-DV600 | 600V | 1V | 2MΩ | ±1％F.S ±2Digits | 720V |
| DM4C-DV2 | 1.9999V | 100uV | 2MΩ | ±0.2％F.S ±2Digits | 5V |
| DM4C-DV20 | 19.999V | 1mV | 2MΩ | ±0.2％F.S ±2Digits | 24V |
| DM4C-DV200 | 199.99V | 10mV | 2MΩ | ±0.2％F.S ±2Digits | 240V |
◆ DC digital ammeter:
| Model | Range | Resolution | Input Impedance | Measuring Accuracy | Input protecting |
| DM3 □-DA0.0002 | 199.9uA | 0.1uA | 10KΩ | ±0.5％F.S ±2Digits | 0.5mA |
| DM3 □-DA0.002 | 1.999mA | 1uA | 1000Ω | ±0.5％F.S ±2Digits | 5mA |
| DM3 □-DA0.02 | 19.99mA | 10uA | 10Ω | ±0.5％F.S ±2Digits | 50mA |
| DM3 □-DA0.2 | 199.9mA | 1mA | 1Ω | ±0.5％F.S ±2Digits | 500mA |
| DM3 □-DA2 | 1.999A | 1mA | 0.1Ω | ±0.5％F.S ±2Digits | 3A |
| DM4C-DA20 | 19.999A | 1mA | 5MΩ | ±0.2％F.S ±2Digits | 100mV |
| DM4C-DA200 | 199.99A | 10mA | 5MΩ | ±0.2％F.S ±2Digits | 100mV |
2). FREQUENCY,TACHOMETER,COUNTER DIGITAL PANEL METER
Electrical parameter:
| Display | Red LED |
| Input impedance | ＞10K |
| Input electrical lever | 5～25V |
| Input waves | Square wave |
| Voltage input limit | 25V |
| Frequency accuracy | ±0.05 ±1Digit(DM4A-FR1；DM4B-FR1); ±0.05 ±10Digits(DM5C-FR1) |
| Input frequency range | 1～10K HZ |
| Counting speed | ≤1000CPS |
| Decimal point | Auto change according to the setting range |
| Overflow indication | “UUUU”or“UUUUU” |
| Power supply | DC +5V±10 %(DC 12V or DC 24V can be ordered) |
| Working invironment | 0～50℃ <85%RH |
Measuring range and specification:
| Model | Frequency range | Rotary speed range | Counter range | Range conversion |
| DM4A-FR1 | 1-9999HZ | 60-9999Rpm | 0-9999 | Auto |
| DM4B-FR1 | 1-9999HZ | 60-9999Rpm | 0-9999 | Auto |
| DM5C-FR1 | 1-9999HZ | 60-99999Rpm | 0-99999 | Auto |
4. Appearance and installation dimensions:
5. Connections:
6. Contact:
Sales: bassy shi
Cell phone: +86 13773069136
Email: bassy.shi@youjiazhineng.com