1. Summary
TH0320 is a series of precision standard resistors, suitable for measuring a wide range of precision current, it can also be applied for calibrating multifunction calibrators, high precision digital multi-meter, etc.
2. Features
• Long-term stability: 3 ppm/year (typical)
• Temperature coefficient: 1 ppm/°C
• Nominal resistance: 1 Ω ~ 10 MΩ
• Low thermal potential terminal
• No oil or air baths required
• 18°C~ 28°C operating range
• Small and rugged
3. Applications
• Calibrate high precision resistance meter
• Calibrate standard resistance/precision resistance
• Establish high precision current measurement system
☆ Calibrate Resistance Meter |
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• Calibrate two-wire (≥ 10 MΩ) or four-wire (≤ 1 MΩ) resistance meters as standard resistors. • It can be used directly without placing in constant temperature oil tank or air tank. |
☆Calibrate Standard/Precision Resistance |
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• Calibrate precision resistance with precision resistance bridge (such as TH0210). |
☆ Establish High Precision DC Measurement System |
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• Establish the current measurement system with I/I transfer standard and precision voltmeter. |
4. Specifications
Model | Nominal Resistance @ 23°C | Initial Deviation ( ±ppm ) | Accuracy ( ±ppm ) | Annual Stability ( ±ppm ) | Temperature Coefficient ( ±ppm/°C) | Wiring |
TH0320-1R | 1 Ω | 5 | 2.5 | 3 | 0.2 | 4W |
TH0320-10R | 10 Ω | 5 | 2.5 | 3 | 0.2 | 4W |
TH0320-100R | 100 Ω | 5 | 2.5 | 3 | 0.2 | 4W |
TH0320-1kR | 1 kΩ | 5 | 2.5 | 3 | 0.2 | 4W |
TH0320-10kR | 10 kΩ | 5 | 2.5 | 3 | 0.2 | 4W |
TH0320-100kR | 100 kΩ | 5 | 2.5 | 3 | 0.2 | 2W |
TH0320-1MR | 1 MΩ | 5 | 2.5 | 3 | 0.2 | 2W |
TH0320-10MR | 10 MΩ | 10 | 5 | 6 | 0.2 | 2W |
Model | Nominal Power ( W ) | Power Factor ( ±ppm/W ) | Maximum Current ( A ) | Maximum Voltage ( V ) |
TH0320-1R | 0.5 | 10 | 707 | 0.707 |
TH0320-10R | 0.1 | 10 | 100 | 1.00 |
TH0320-100R | 0.1 | 10 | 31.6 | 3.16 |
TH0320-1kR | 0.1 | 10 | 10 | 10 |
TH0320-10kR | 0.1 | 10 | 3.16 | 31.6 |
TH0320-100kR | 0.1 | 10 | 1 | 100 |
TH0320-1MR | 0.1 | 10 | 0.316 | 316 |
TH0320-10MR | 0.1 | 10 | 0.1 | 1000 |
5. General Specifications
Power supply | —— |
Temperature performance | Operating temperature: 18°C~ 28°C; Storage temperature: -10°C ~ 60 °C; |
Humidity performance | Working humidity :(40%-60%) R·H, no condensation; Storage humidity: ＜ 95% ·H, no condensation; |
Weight | About 1 kg |
Dimensions | 100 mm(W) ×150 mm(D)× 70 mm (H) (excluding terminals and footpads) |
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