1. Summary
TD1855 is a multi-function calibrator, integrates AC\DC voltage source, AC\DC current source, DC resistance source, etc. The accuracy class is 0.05. It’s applied to calibrating 3.5 digits multimeter, voltmeter, ammeter, ohmmeter, power meter.
2. Features
• DC voltage output: 20 mV ~ 1100 V
• DC current output: 2 μA ~ 22 A（33 A is optional）
• AC voltage output: 20 mV ~ 1100 V
• AC current output: 200 μA ~ 22 A（33 A is optional）
• Sinusoidal wave frequency: 45 Hz ~ 1100 Hz
• Simulated DC resistance: 10 Ω ~ 220 MΩ
• 2 MHz square wave frequency output
• Phase output
• AC/DC power output
• Remote adjustment (optional)
• Clamp meter calibration (optional)
• Transducer calibration(optional)
• 5.6-inch Color Touch Screen
3. Application
☆ Calibrate AC\DC electrical measuring instruments |
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• DCV output: 20 mV ~ 1100 V • DCI output: 2 μA ~ 22 A\33 A • ACV output: 20 mV ~ 1100 V, 45 Hz ~ 1100 Hz • ACI output: 200 μA ~ 22 A\33 A, 45 Hz ~ 1100 Hz • RES output: 10 Ω ~ 220 MΩ • Frequency output: 1 Hz ~ 2 MHz • Calibrate digital multimeter, AC/DC voltmeter, AC/DC ammeter, DC ohmmeter, frequency meter. |
☆ Calibrate AC\DC power meters |
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• Calibrate DC power meter, real power meter, phantom power meter, apparent power meter, power frequency phase meter and power factor meter. |
☆ Calibrate clamp ammeter (optional) |
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• Equivalent to 1000AT current through input 20A current to the 50T Coil, which is suitable for calibrating DC clamp meters. |
☆ Calibrate AC/DC Transducer (optional) |
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• DC small-signal measurement. (Vmax: 12 V, Imax: 24 mA) • Calibrate the proportional error of AC/DC voltage/current transducer. |
4. Panel Features
☆ Front\Side Panel | |
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S/N | Description |
| LCD touch screen. |
| Operation panel. |
| Simulated DC resistance output terminals. |
| AC/DC voltage output terminals. |
| AC/DC current output terminals. |
| Handle: used for carrying instruments. |
| Input terminals for DC transducer. |
☆ Rear Panel | |
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S/N | Description |
| Pulse frequency output terminals. |
| Remote box interface. |
| RS232 communication interface. |
| Chassis ground binding post. |
| AC 220V power interface. |
| Cooling vents. |
5. Characteristics
☆ Wide output range |
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☆ Multiple output\adjustment methods |
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• “Direct output” mode: the value output can be set directly by physical key or touch screen. |
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• Calibration of the analog pointer meter usually needs to test scale by scale, especially "differences between rising and falling" (the change caused by the rise and fall of the calibration point). • Remote box can realize the coarse and fine adjustment of current or voltage. |
☆ Multiple output\adjustment methods |
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• Touch “Calibration point” of screen for “% setting”. |
• “Rotary Knob” mode, User can set in clockwise direction or anticlockwise direction. |
6.Specifications
6.1 DC Voltage/Current Output
Range | Resolution | Stability (±%/min) | Accuracy ±(ppm*RD+ppm*RG)[1] | Max burden (mA) | Ripple Factor(%) |
200 mV | 1 μV | 0.01 | 300 + 200 | 300 | <0.5 |
2 V | 10 μV | 0.01 | 300 + 200 | 500 | <0.5 |
10 V | 100 μV | 0.01 | 300 + 200 | 500 | <0.5 |
30 V | 100 μV | 0.01 | 300 + 200 | 800 | <0.5 |
100 V | 1 mV | 0.01 | 300 + 200 | 300 | <0.5 |
300 V | 1 mV | 0.01 | 300 + 200 | 100 | <0.5 |
600 V | 1 mV | 0.01 | 300 + 200 | 50 | <0.5 |
1000 V | 10 mV | 0.01 | 300 + 200 | 30 | <0.5 |
Range | Resolution | Stability (±%/min) | Accuracy ±(ppm*RD+ppm*RG) | Compliance Voltage (V) | Ripple Factor(%) |
20μA | 100pA | 0.01 | 300 + 200 | 10 | <0.5 |
200μA | 1 nA | 0.01 | 300 + 200 | 9 | <0.5 |
2mA | 10 nA | 0.01 | 300 + 200 | 9 | <0.5 |
20mA | 100 nA | 0.01 | 300 + 200 | 9 | <0.5 |
200 mA | 1 μA | 0.01 | 300 + 200 | 9 | <0.5 |
2 A | 10 μA | 0.01 | 300 + 200 | 3.5 | <0.5 |
10 A | 100 μA | 0.01 | 300 + 200 | 2.5 | <0.5 |
20 A (30 A)[2] | 100 μA | 0.01 | 300 + 200 | 2.5 | <0.5 |
Note[1]: RD is the reading value, RG is the range value; Note[2]: The 30 A range is optional. | |||||
• Voltage output range: 20 mV ~ 1100 V
• Current output range: 2 μA ~ 22 A\33 A
• Protections: voltage source short-circuit protection, current source open-circuit protection, overload protection
6.2 AC Voltage/Current Output
Range | Resolution | Stability (±%/min) | Accuracy ±(ppm*RD+ppm*RG) | Max Burden (mA) | Harmonic (%) |
200 mV | 1 μV | 50 μV | 300 + 60 μV | 500 | <1.0 |
2 V | 10 μV | 0.01 | 300 + 200 | 500 | <0.5 |
10 V | 100 μV | 0.01 | 300 + 200 | 800 | < 0.5 |
30 V | 100 μV | 0.01 | 300 + 200 | 800 | < 0.5 |
100 V | 1 mV | 0.01 | 300 + 200 | 300 | < 0.5 |
300 V | 1 mV | 0.01 | 300 + 200 | 100 | < 0.5 |
600 V | 1 mV | 0.01 | 300 + 200 | 50 | < 0.5 |
1000 V | 10 mV | 0.01 | 300 + 200 | 30 | < 0.5 |
Range | Resolution | Stability (±%/min) | Accuracy ±(ppm*RD+ppm*RG) | Compliance Voltage (V) | Harmonic (%) |
2 mA | 10 nA | 0.6 μA | 300 +0.6 μA | 50 | <0.5 |
20 mA | 100 nA | 0.01 | 300 + 200 | 50 | <0.5 |
200 mA | 1 μA | 0.01 | 300 + 200 | 50 | <0.5 |
1 A | 10 μA | 0.01 | 300 + 200 | 15 | <0.5 |
2 A | 10 μA | 0.01 | 300 + 200 | 10 | <0.5 |
5 A | 10 μA | 0.01 | 300 + 200 | 5 | <0.5 |
20 A(30 A)[1] | 100 μA | 0.01 | 300 + 200 | 2.5 | <0.5 |
Note [1]: 30 A range is optional. | |||||
• Voltage output range: 20 mV ~ 1100 V
• Current output range: 200 μA ~ 22 A\33 A
• Voltage and current output frequency: 45 Hz ~ 1100 Hz
• Protections: voltage source short-circuit protection, current source open-circuit protection, overload protection
6.3 Simulated DC Resistance
Range | Resolution | Accuracy ± (ppm*RD+ppm*RG) | Allowable Current |
100 Ω | 1 mΩ | 300 + 200 | 1mA～80 mA |
300 Ω | 1 mΩ | 300 + 200 | 1mA～80 mA |
1 kΩ | 10 mΩ | 300 + 200 | 100μA～8 mA |
3kΩ | 10 mΩ | 300 + 200 | 100μA～8 mA |
10 kΩ | 100 mΩ | 300 + 200 | 10μA～0.8 mA |
30 kΩ | 100 mΩ | 300 + 200 | 10μA～0.8 mA |
100 kΩ | 1 Ω | 300 + 200 | 10μA～0.8 mA |
300 kΩ | 1 Ω | 300 + 200 | 1μA～80 μA |
1 MΩ | 10 Ω | 300 + 200 | 1μA～80 μA |
10 MΩ | 100 Ω | 600 + 400 | 100nA～8 μA |
100 MΩ | 1000 Ω | 3000 + 2000 | 10nA～0.8 μA |
200 MΩ | 1000 Ω | 3500 + 2500 | 10nA～0.8 μA |
• Output range: 10 Ω ~ 220 MΩ
• Over-current and reverse connection protection
6.4 Sinusoidal Wave Frequency Output
Output Range[1] | Resolution | Accuracy |
45.0000 Hz ≤ F ≤ 99.9999 Hz | 0.0001 Hz | ±0.01% |
100.000 Hz ≤ F ≤ 999.999 Hz | 0.001 Hz | ±0.01% |
1000.00 Hz ≤ F ≤ 1100.00 Hz | 0.01 Hz | ±0.01% |
Note [1]: The output mode is AC voltage or AC current. | ||
6.5 AC/DC Power Output
Frequency Range (f) | Voltage Range (U) | Current Range (I) | Optimum Accuracy %*power output [1][2] |
DC | 20 mV ~ 1100 V | 2 μA ~ 22 A/33 A | ±0.1 |
45 Hz ~ 65 Hz | 3 V ~ 600 V | 0.2 mA ~ 22 A/33 A | ±0.1 |
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6.6 Phase and Power Factor Output（45 Hz～65 Hz）
Phase | Power Factor | Accuracy | ||
WATTS | VARS | λ=cosφ | Phase | Power Factor |
0° | 90° | 1.0000 | 0.1° | 0.000% |
10° | 80° | 0.9848 | 0.1° | 0.031% |
20° | 70° | 0.9397 | 0.1° | 0.064% |
30° | 60° | 0.8660 | 0.1° | 0.101% |
40° | 50° | 0.7660 | 0.1° | 0.147% |
50° | 40° | 0.6429 | 0.1° | 0.208% |
60° | 30° | 0.5000 | 0.1° | 0.302% |
70° | 30° | 0.3420 | 0.1° | 0.480% |
80° | 10° | 0.1737 | 0.1° | 0.990% |
90° | 0° | 0.0000 | 0.1° | — |
Note [1]: Phase range: 0.000 °~ 359.999 °, fineness: 0.005 ° Note [2]: Power factor range: -1 ~ 0 ~ 1, fineness: 0.000 1 Note [3]: Calculation formulas for the accuracy of other power factor: | ||||
6.7 Pulse Frequency Output
Range[1] | Resolution | Accuracy | Shake |
1.000 00 Hz ≤ F ≤ 9.999 99 Hz | 10 μHz | ± (20 ppm*RD + 20 μHz) | <20 ns |
10.000 0 Hz ≤ F ≤ 99.999 9 Hz | 0.1 mHz | ||
100.000 Hz ≤ F ≤ 999.999 Hz | 1 mHz | ||
1.000 00 kHz ≤ F ≤ 9.999 99 kHz | 10 mHz | ||
10.000 0 kHz ≤ F ≤ 99.999 9 kHz | 0.1 Hz | ||
100.000 kHz ≤ F ≤ 999.999 kHz | 1 Hz | ||
1.000 00 MHz ≤ F ≤ 2.000 00 MHz | 10 Hz | ||
Note [1]: The output type is TTL level. | |||
6.8 DC Small-signal Measurement (optional)
Type | Range | Range | Accuracy |
DCV | 1 V | ± (0～1.2) V | ±(0.006%*RD + 0.004%*RG) |
10 V | ± (0～12) V | ±(0.006%*RD + 0.004%*RG) | |
DCI | 2 mA | ± (0～2.4) mA | ±(0.006%*RD + 0.004%*RG) |
20 mA | ± (0～24) mA | ±(0.006%*RD + 0.004%*RG) |
7. General Specifications
Power supply | AC (220±22) V，(50±2) Hz |
Maximum power consumption | 600 VA |
Warm up time | Twice the time since last warmed up, to a maximum of 30 minutes. |
Temperature performance | Operating temperature: 0°C ~ 40°C Calibration temperature: 18°C~ 28°C Storage temperature: -20°C ~ 70°C |
Humidity performance | Operating humidity: <80% @ 30°C，<70% @ 40°C Storage humidity: (20%~80%) R·H，No condensation |
Communication interface | RS232 |
Dimensions | 475 mm(W)×400 mm (D) ×190 mm (H), excluding handles and feets. |
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Weight | About 19.5 kg |
8. Ordering Information
Advanced Multifunction Calibrator Advanced Electrical Reference Standards Electric Vehicle （EV）Charging Facility Tester AC/DC Standard Source /Meter Single-phase/Three-phase Standard Meter Magnetic Parameters Measurement and Calibration Magnetic Material Testing Equipment Electrical Steel Testing Equipment