TD1870 is a multi-function calibrator with wide range and high accuracy, integrates AC/DC voltage and current standard source, can output excellent DC\AC voltage, DC\AC current, DC\AC power, phase, frequency, and analog resistance etc. It’s applied for calibrating 5.5 digits or less digital multimeters.
1. Summary
TD1870 is a multi-function calibrator with wide range and high accuracy, integrates AC/DC voltage and current standard source, can output excellent DC\AC voltage, DC\AC current, DC\AC power, phase, frequency, and analog resistance etc. It’s applied for calibrating 5.5 digits or less digital multimeters.
2. Features
• DC voltage output: ± (0 ~ 1020 V)
• DC current output: ± (0 ~ 20.5 A)
• AC voltage output: 1 mV ~ 1020 V
• AC current output: 29 μA ~ 20.5 A
• Sinusoidal wave frequency: 10 Hz ~ 500 kHz
• Simulated DC resistance: 0 Ω ~ 1100 MΩ
• 2 MHz square wave frequency output
• Phase output
• AC/DC power output
• Thermocouple output(optional)
• Thermal resistance output(optional)
• Clamp meter calibration (optional)
• 7.0-inch Color Touch Screen
3. Application
|
Range |
Output Range |
Accuracy (Tcal±5°C) |
Stability (Tcal±1°C) |
Resolution |
Max Burden [Source internal resistance] |
|
|
±(ppm*output + μV) |
||||||
|
90 days |
1 year |
24 hours |
||||
|
300 mV |
0~330.0000 mV |
50 + 3 |
60 + 3 |
5 + 1 |
100 nV |
[60 Ω] |
|
3 V |
0~3.300000 V |
40 + 5 |
50 + 5 |
4 + 3 |
1 μV |
20 mA |
|
30 V |
0~33.00000 V |
40 + 50 |
50 + 50 |
4 + 30 |
10 μV |
15 mA |
|
300 V |
30.0000 V~330.0000 V |
45 + 500 |
55 + 500 |
4.5 + 300 |
100 μV |
10 mA |
|
1000 V |
100.000 V~1020.000 V |
45 + 1500 |
55 + 1500 |
4.5 + 900 |
1 mV |
10 mA |
• Manual or automatic range switch.
• Short-circuit and overload protection.
6.2 DC Current Output
|
Range |
Output Range |
Accuracy(Tcal±5°C) ±(ppm*output + μA) |
Resolution |
Compliance Voltage (V) |
Max Inductive Load |
|
|
90 days |
1 year |
|||||
|
300 μA |
0~330.000 μA |
112 + 0.02 |
140 + 0.02 |
1 nA |
11 V |
400 μH |
|
3 mA |
0~3.30000 mA |
72 + 0.04 |
90 + 0.04 |
10 nA |
11 V |
|
|
30 mA |
0~33.0000 mA |
72 + 0.25 |
90 + 0.25 |
100 nA |
9 V |
|
|
300 mA |
0~330.000 mA |
72 + 2.5 |
90 + 2.5 |
1 μA |
7 V |
|
|
1 A |
0~1.10000 A |
200 + 44 |
250 + 40 |
10 μA |
6 V |
|
|
3 A |
1.00000 A~3.30000 A |
240 + 44 |
300 + 40 |
10 μA |
6 V |
|
|
20 A |
3.0000 A~20.5000 A |
480 + 500 |
600 + 500 |
100 μA |
4 V |
|
• Manual or automatic range switch.
• Open-circuit and overload protection.
• Supports continuous and long-term output of current under full range.
6.3 Simulated DC resistance
|
Range |
Output Range |
Accuracy, (Tcal±5°C) ±(ppm*output + Ω) |
Resolution |
Allowable Current |
|
|
90 days |
1 year |
||||
|
10 Ω |
0 Ω~11.00000 Ω |
80 + 0.01 |
100 + 0.01 |
10 μΩ |
1 mA~150 mA |
|
30 Ω |
10.00000 Ω~33.00000 Ω |
80 + 0.015 |
100 + 0.015 |
10 μΩ |
1 mA~150 mA |
|
100 Ω |
30.0000 Ω~110.0000 Ω |
64 + 0.015 |
80 + 0.015 |
100 μΩ |
1 mA~80 mA |
|
300 Ω |
100.0000 Ω~330.0000 Ω |
64 + 0.02 |
80 + 0.02 |
100 μΩ |
1 mA~40 mA |
|
1 kΩ |
0.300000 kΩ~1.100000 kΩ |
64 + 0.02 |
80 + 0.02 |
1 mΩ |
1 mA~20 mA |
|
3 kΩ |
1.000000 kΩ~3.300000 kΩ |
64 + 0.2 |
80 + 0.2 |
1 mΩ |
0.1 mA~6 mA |
|
10 kΩ |
3.00000 kΩ~11.00000 kΩ |
64 + 0.1 |
80 + 0.1 |
10 mΩ |
0.1 mA~2 mA |
|
30 kΩ |
10.00000 kΩ~33.00000 kΩ |
64 + 1 |
80 + 1 |
10 mΩ |
10 μA~0.6 mA |
|
100 kΩ |
30.0000 kΩ~110.0000 kΩ |
80 + 1 |
100 + 1 |
100 mΩ |
10 μA~0.2 mA |
|
300 kΩ |
100.0000 kΩ~330.0000 kΩ |
80 + 10 |
100 + 10 |
100 mΩ |
1 μA~60 μA |
|
1 MΩ |
0.300000 MΩ~1.100000 MΩ |
104 + 10 |
130 + 10 |
1 Ω |
1 μA~20 μA |
|
3 MΩ |
1.000000 MΩ~3.300000 MΩ |
104 + 150 |
130 + 150 |
1 Ω |
0.25 μA~6 μA |
|
10 MΩ |
3.00000 MΩ~11.00000 MΩ |
400 + 250 |
500 + 250 |
10 Ω |
0.25 μA~2 μA |
|
30 MΩ |
10.00000 MΩ~33.00000 MΩ |
650 + 2500 |
800 + 2500 |
10 Ω |
25 nA~600 nA |
|
100 MΩ |
30.0000 MΩ~110.0000 MΩ |
3600 + 3000 |
4500 + 3000 |
100 Ω |
25 nA~200 nA |
|
300 MΩ |
100.0000 MΩ~330.0000 MΩ |
3600 + 100000 |
4500 + 100000 |
100 Ω |
2.5 nA~60 nA |
|
1 GΩ |
300.000 MΩ~1100.000 MΩ |
11000 + 480000 |
14000 + 480000 |
1 kΩ |
1 nA~20 nA |
• Manual or automatic range switch.
• Over-current and reverse connection protection.
6.4 AC Voltage Output
|
Range |
Output Range |
Frequency (Hz) |
Accuracy,(Tcal±5°C) ±(%*output + μV) |
Resolution |
Max Burden [Source internal resistance] |
|
|
90 days |
1 year |
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|
30 mV |
1.0000 mV~ 33.0000 mV |
10≤F≤45 |
0.10 + 20 |
0.12 + 20 |
100 nV |
[10 Ω] |
|
45<F≤10k |
0.08 + 20 |
0.10 + 20 |
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|
10k<F≤20k |
0.12 + 20 |
0.15 + 20 |
||||
|
20k<F≤50k |
0.16 + 20 |
0.20 + 20 |
||||
|
50k<F≤100k |
0.30 + 33 |
0.35 + 33 |
||||
|
100k<F≤500k |
0.72 + 60 |
0.90 + 60 |
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|
300 mV |
30.000 mV~ 330.000 mV |
10≤F≤45 |
0.04 + 18 |
0.05 + 18 |
1 μV |
[60 Ω] |
|
45<F≤10k |
0.024 + 18 |
0.03 + 18 |
||||
|
10k<F≤20k |
0.048 + 18 |
0.06 + 18 |
||||
|
20k<F≤50k |
0.064 + 30 |
0.08 + 40 |
||||
|
50k<F≤100k |
0.12 + 120 |
0.15 + 120 |
||||
|
100k<F≤500k |
0.28 + 300 |
0.35 + 300 |
||||
|
3 V |
0.30000 V~ 3.30000 V |
10≤F≤45 |
0.04 + 55 |
0.05 + 55 |
10μV |
20 mA |
|
45<F≤10k |
0.016 + 55 |
0.02 + 55 |
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|
10k<F≤20k |
0.048 + 55 |
0.06 + 55 |
||||
|
20k<F≤50k |
0.064 + 55 |
0.08 + 55 |
||||
|
50k<F≤100k |
0.12 + 180 |
0.15 + 180 |
||||
|
100k<F≤500k |
0.32 + 800 |
0.40 + 800 |
||||
|
30 V |
3.0000 V~ 33.0000 V |
10≤F≤45 |
0.04 + 750 |
0.05 + 750 |
100 μV |
15 mA |
|
45<F≤10k |
0.024 + 550 |
0.03 + 550 |
||||
|
10k<F≤20k |
0.048 + 550 |
0.06 + 550 |
||||
|
20k<F≤50k |
0.064 + 550 |
0.08 + 550 |
||||
|
50k<F≤100k |
0.16 + 1800 |
0.20 + 1800 |
||||
|
300 V |
30.000 V~ 330.000 V |
45≤F≤1k |
0.024 + 2500 |
0.03 + 2500 |
1 mV |
30 mA [1] |
|
1k<F≤10k |
0.032 + 8000 |
0.04 + 8000 |
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|
10k<F≤20k |
0.048 + 8000 |
0.06 + 8000 |
||||
|
20k<F≤50k |
0.096 + 9000 |
0.12 + 9000 |
||||
|
50k<F≤100k |
0.192 + 80000 |
0.24 + 80000 |
||||
|
1000 V |
300.00 V~ 1020.00 V |
45≤F≤1k |
0.024 + 15000 |
0.03 + 15000 |
10 mV |
8 mA [2] |
|
1k<F≤5k |
0.032 + 15000 |
0.04 + 15000 |
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|
5k<F≤10k |
0.032 + 15000 |
0.04 + 15000 |
||||
|
Note: [1] When the output frequency ≤ 3kHz, the maximum load is 30 mA; When the output frequency >3kHz, the maximum load is 5 mA. [2] When the output frequency ≤ 3kHz, the maximum load is 8 mA; When the output frequency >3kHz, the maximum load is 3 mA. |
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Manual or automatic range switch.
Short-circuit and overload protection.
6.5 AC Current Output
|
Range |
Output Range |
Frequency (Hz) |
Accuracy(Tcal±5°C) ±(%*output + μA) |
Resolution |
Compliance Voltage (rms) |
Max Inductive Load |
|
|
90 days |
1 year |
||||||
|
300 μA |
29.000 μA~ 330.000 μA |
10≤F≤20 |
0.128 + 0.1 |
0.16 + 0.1 |
1 nA |
7 V |
200μH |
|
20<F≤45 |
0.096 + 0.1 |
0.12 + 0.1 |
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|
45<F≤1k |
0.064 + 0.1 |
0.08 + 0.1 |
|||||
|
1k<F≤5k |
0.128 + 0.1 |
0.16 + 0.1 |
|||||
|
5k<F≤10k |
0.24 + 0.2 |
0.3 + 0.2 |
|||||
|
10k<F≤30k |
0.96 + 0.4 |
1.2 + 0.4 |
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|
3mA |
0.30000 mA~ 3.30000 mA |
10≤F≤20 |
0.128 + 0.1 |
0.16 + 0.1 |
10 nA |
7 V |
200μH |
|
20<F≤45 |
0.096 + 0.1 |
0.12 + 0.1 |
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|
45<F≤1k |
0.064 + 0.1 |
0.08 + 0.1 |
|||||
|
1k<F≤5k |
0.128 + 0.2 |
0.16 + 0.2 |
|||||
|
5k<F≤10k |
0.24 + 0.3 |
0.3 + 0.3 |
|||||
|
10k<F≤30k |
0.96 + 0.5 |
1.2 + 0.5 |
|||||
|
30 mA |
3.0000 mA~ 33.0000 mA |
10≤F≤20 |
0.096 + 2 |
0.12 + 2 |
100 nA |
7 V |
50μH |
|
20<F≤45 |
0.064 + 2 |
0.08 + 2 |
|||||
|
45<F≤1k |
0.032 + 2 |
0.04 + 2 |
|||||
|
1k<F≤5k |
0.064 + 2 |
0.06 + 2 |
|||||
|
5k<F≤10k |
0.08 + 3 |
0.1 + 3 |
|||||
|
10k<F≤30k |
0.24 + 4 |
0.3 + 4 |
|||||
|
300 mA |
30.000 mA~ 330.000 mA |
10≤F≤20 |
0.096 + 20 |
0.12 + 20 |
1 μA |
5 V |
50μH |
|
20<F≤45 |
0.064 + 20 |
0.08 + 20 |
|||||
|
45<F≤1k |
0.032 + 20 |
0.04 + 20 |
|||||
|
1k<F≤5k |
0.048 + 40 |
0.06 + 40 |
|||||
|
5k<F≤10k |
0.08 + 100 |
0.1 + 100 |
|||||
|
10k<F≤30k |
0.24 + 200 |
0.3 + 200 |
|||||
|
1 A |
0.10000 A~ 1.10000 A |
10≤F≤45 |
0.096 + 100 |
0.12 + 100 |
10μA |
5 V |
2.5μH |
|
45<F≤1k |
0.032 + 80 |
0.04 + 80 |
|||||
|
1k<F≤5k |
0.048 + 500 |
0.06 + 500 |
|||||
|
5k<F≤10k |
0.08 + 1000 |
0.1 + 1000 |
|||||
|
3 A |
1.00000 A~ 3.30000 A |
10≤F≤45 |
0.096 + 100 |
0.12 + 100 |
10μA |
4 V |
2.5μH |
|
45<F≤1k |
0.032 + 80 |
0.04 + 80 |
|||||
|
1k<F≤5k |
0.048 + 500 |
0.06 + 500 |
|||||
|
5k<F≤10k |
0.08 + 2000 |
0.1 + 2000 |
|||||
|
20 A |
3.0000 A~ 20.5000 A |
45≤F≤100 |
0.048 + 1500 |
0.06 + 1500 |
100μA |
3 V |
1μH |
|
100<F≤1k |
0.064 + 1500 |
0.08 + 1500 |
|||||
|
1k<F≤5k |
0.096 + 3000 |
0.12 + 3000 |
|||||
Manual or automatic range switch.
Open-circuit and overload protection.
Supports continuous and long-term output of current under full range.
6.6 Sinusoidal Wave Frequency Output
|
Range |
Resolution |
Accuracy (Tcal±5°C) |
|
10.00000 Hz ≤ F ≤ 99.99999 Hz |
10 μHz |
±0.005% |
|
100.0000 Hz ≤ F ≤ 999.9999 Hz |
0.1 mHz |
±0.005% |
|
1.000000 kHz ≤ F ≤ 9.999999 kHz |
1 mHz |
±0.005% |
|
10.00000 kHz ≤ F ≤ 99.99999 kHz |
10 mHz |
±0.005% |
|
100.0000 kHz ≤ F ≤ 500.0000 kHz |
0.1 Hz |
±0.005% |
6.7 Phase and Power Factor Output
|
Phase |
Accuracy(Tcal±5°C) |
||||||
|
10~20Hz |
20~45Hz |
45~1kHz |
1k~5kHz |
5k~10kHz |
10k~30kHz |
||
|
φ |
0.1° |
0.1° |
0.05° |
0.5° |
1.0° |
2.0° |
|
|
phase (φ) |
Power factor (λ) |
Power accuracy caused by phase[3] |
|||||
|
10~20Hz |
20~45Hz |
45~1kHz |
1k~5kHz |
5k~10kHz |
10k~30kHz |
||
|
0° |
1.00000 |
0.000% |
0.000% |
0.000% |
0.004% |
0.015% |
0.061% |
|
10° |
0.98481 |
0.031% |
0.031% |
0.015% |
0.158% |
0.323% |
0.676% |
|
20° |
0.93969 |
0.064% |
0.064% |
0.032% |
0.321% |
0.650% |
1.331% |
|
30° |
0.86603 |
0.101% |
0.101% |
0.050% |
0.508% |
1.023% |
2.076% |
|
40° |
0.76604 |
0.147% |
0.147% |
0.073% |
0.736% |
1.480% |
2.989% |
|
50° |
0.64279 |
0.208% |
0.208% |
0.104% |
1.044% |
2.095% |
4.220% |
|
60° |
0.50000 |
0.302% |
0.302% |
0.151% |
1.515% |
3.038% |
6.106% |
|
70° |
0.34202 |
0.480% |
0.480% |
0.240% |
2.401% |
4.810% |
9.649% |
|
80° |
0.17365 |
0.990% |
0.990% |
0.495% |
4.953% |
9.913% |
19.853% |
|
90° |
0.00000 |
— |
— |
— |
— |
— |
— |
|
Note: [1] Phase resolution: 0.001°?[2] Power factor resolution: 0.000 01? [3] Other power factor accuracy calculation formula: |
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6.8 AC/DC Power Output
|
Frequency (Hz) |
Voltage Range (U) |
Current Range (I) |
Phase Range (φ) |
Power Factor Range[2] (λ) |
|
DC |
0~±1020 V |
0~±20.5 A |
— |
— |
|
10~45 |
30 mV~33 V |
3 mA~3.3 A |
0.000°~359.999° |
-1~0~1 |
|
45~1k |
30 mV~1020 V |
3 mA~20.5 A |
0.000°~359.999° |
-1~0~1 |
|
1k~5k |
3 V~1020 V |
30 mA~3.3 A |
0.000°~359.999° |
-1~0~1 |
|
5k~10k |
3 V~1020 V |
30 mA~3.3 A |
0.000°~359.999° |
-1~0~1 |
|
10k~30k |
3 V~330 V |
30 mA~330 mA |
0.000°~359.999° |
-1~0~1 |
|
|
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6.9 Pulse Frequency Output
|
Range [1] |
Resolution |
Accuracy, (Tcal±5°C) ±(ppm*RD + μHz) |
Shake |
|
1.000 00 Hz ≤ F ≤ 9.999 99 Hz |
10 μHz |
20 + 20 |
<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. |
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6.10 Thermocouple Output and Measurement (optional)
|
Type [1] |
Output Range[2] [3] |
Accuracy (Tcal±5°C)[4](°C) |
|
|
90 days |
1 year |
||
|
B |
410°C ~ 600°C |
0.33 |
0.35 |
|
600°C ~ 900°C |
0.26 |
0.28 |
|
|
900°C ~ 1800°C |
0.20 |
0.22 |
|
|
E |
-200°C ~ 0°C |
0.09 |
0.10 |
|
0°C ~ 600°C |
0.06 |
0.08 |
|
|
600°C ~ 1000°C |
0.08 |
0.10 |
|
|
J |
-200°C ~ -100°C |
0.12 |
0.13 |
|
-100°C ~ 750°C |
0.07 |
0.08 |
|
|
750°C ~ 1200°C |
0.08 |
0.10 |
|
|
K |
-200°C ~ -100°C |
0.15 |
0.16 |
|
-100°C ~ 1000°C |
0.08 |
0.10 |
|
|
1000°C ~ 1370°C |
0.10 |
0.12 |
|
|
N |
-200°C ~ -100°C |
0.21 |
0.22 |
|
-100°C ~ 400°C |
0.07 |
0.09 |
|
|
400°C ~ 1300°C |
0.09 |
0.11 |
|
|
R |
-50°C ~ 50°C |
0.36 |
0.38 |
|
50°C ~ 300°C |
0.25 |
0.27 |
|
|
300°C ~ 1000°C |
0.18 |
0.20 |
|
|
1000°C ~ 1750°C |
0.18 |
0.20 |
|
|
S |
-50°C ~ 50°C |
0.36 |
0.38 |
|
50°C ~ 300°C |
0.25 |
0.27 |
|
|
300°C ~ 1000°C |
0.18 |
0.20 |
|
|
1000°C ~ 1750°C |
0.21 |
0.23 |
|
|
T |
-200°C ~ 100°C |
0.13 |
0.15 |
|
-100°C ~ 0°C |
0.08 |
0.11 |
|
|
0°C ~ 400°C |
0.06 |
0.08 |
|
|
Note [1]: Use external compensation, S, R, B, K, N, E, J, T conform to ITS-90 international temperature standard; Note [2]: Temperature resolution: 0.01 ° C; Note [3]: Internal resistance of output source: 10 Ω; Note [4]: The thermocouple error is not included. |
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Voltage output/measurement range: -10 mV~ 80 mV
7 digits decimal display
Ripple coefficient: <0.5%
6.11 RTD Output(optional)
|
Type |
Output Range[1] |
Accuracy, (Tcal±5°C), °C |
|
|
90 days |
1 year |
||
|
Pt385, 100 Ω |
-200°C ~ 850°C |
0.04 |
0.05 |
|
Pt385, 200 Ω |
-200°C ~ 320°C |
0.30 |
0.35 |
|
320°C ~ 850°C |
0.35 |
0.40 |
|
|
Pt385, 500 Ω |
-200°C ~ -30°C |
0.04 |
0.05 |
|
-30°C ~ 850°C |
0.13 |
0.15 |
|
|
Pt385, 1000 Ω |
-200°C ~ 850°C |
0.07 |
0.09 |
|
Cu50 |
-50°C ~ 150°C |
0.07 |
0.09 |
|
Cu100 |
-50°C ~ 150°C |
0.04 |
0.05 |
|
Note[1]: Resolution: 0.001°C |
|||
|
Power supply |
AC (220±22) V, (50±2) Hz |
|
Maximum power consumption |
550 VA |
|
Warm up time |
Twice the time since last warmed up, to a maximum of 30 minutes. |
|
Temperature performance |
Operating temperature: 0°C ~ 50°C Calibration temperature: 15°C ~35°C Storage temperature: - -20°C~70°C |
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Humidity performance |
Operating humidity: <80% @ 30°C, <70% @ 40°C, <40% @ 50°C Storage humidity: <95%, No condensation |
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Communication interface |
RS232×1?USB×1?LAN×1 |
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Dimensions
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444 mm(W)× 510 mm (D) × 205 mm (H), Handles and feet excluded. |
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