TH1950 High Precision Multi-function Calibrator
TH1950 High Precision Multi-function Calibrator is a new generation of top-level multi-function calibrator with a wider calibration range and higher calibration accuracy. It can output AC and DC voltage and current signals with excellent performance and has built-in high-stability standard resistors. It can calibrate various series of digital multimeters and other precision electrical measuring instruments, and is widely used in power grids, measurement and testing, industrial manufacturing, scientific research and other fields.
• High-precision multi-function signal output
• Calibrate 7.5 and 8.5 digit multimeters
• Supports AC and DC current expansion output to 120A (with TA1000)
• Excellent output stability, DCV 24h short-term stability ≤ 1 ppm
• Suports various value output: touch screen output (5-inch screen), button output and rotary knob output
• Rich Calibration Functions: It can be used to calibrate digital multimeters, analog pointer meters, data loggers, chart recorders, panel meters and graphic multimeters, etc.
• Original Device Calibration Technology: By using measurement standards: TH0100 Advanced DC Voltage Reference Standard and TH0320 Reference Resistance Standard, all functions and ranges can be fully calibrated, greatly saving testing time and periodic calibration costs.
• Safety Protection Circuit: It has safety circuit protection functions, including voltage short circuit protection, current open circuit protection, overheating and overload protection, etc. The specially designed overcurrent fuse can also be easily replaced.
• Excellent Interaction Performance: High-definition large-size color touch screen, which can display multiple sets of parameters and information at the same time, and the selected capacitive touch screen makes operation sensitive and convenient, equipped with physical operation buttons and a rotary encoder, the calculator-style keyboard makes inputting values easier and faster.
Range | Resolution | Output Range | Maximum Load [Source Internal Resistance] |
200 mV | 10 nV | ± (0 ~ 220.000 00 mV) | [50 Ω] |
2 V | 100 nV | ± (0 ~ 2.200 000 0 V) | 50 mA |
10 V | 1 μV | ± (0 ~ 11.000 000 V) | 50 mA |
20 V | 1 μV | ± (0 ~ 22.000 000 V) | 50 mA |
200 V | 10 μV | ± (0 ~ 220.000 00 V) | 50 mA |
1000 V | 100 μV | ± (100.000 0 V ~ 1100.000 0 V) | 20 mA |
Range | Stability Tcal ± 1°C | Absolute Measurement Uncertainty (k=2) Tcal ± 5°C | |||
24 Hours | 24 Hours | 90 Days | 180 Days | 1 Year | |
ppm*Output + μV | |||||
200 mV | 0.3 + 0.3 | 4 + 0.4 | 6 + 0.4 | 6.5 + 0.4 | 7.5 + 0.4 |
2 V | 0.3 + 1 | 3 + 0.7 | 3.5 + 0.7 | 4 + 0.7 | 5 + 0.7 |
10 V | 0.3 + 2.5 | 2 + 2.5 | 2.5 + 2.5 | 3 + 2.5 | 3.5 + 2.5 |
20 V | 0.4 + 5 | 2 + 4 | 2.5 + 4 | 3 + 4 | 3.5 + 4 |
200 V | 0.5 + 40 | 3 + 40 | 3.5 + 40 | 4 + 40 | 5 + 40 |
1000 V | 0.5 + 200 | 4 + 400 | 4.5 + 400 | 6 + 400 | 6.5 + 400 |
• Range switching: manual / automatic
• Display digits: 8 decimal digits
• Wiring method: two-wire or four-wire
• Protection functions: short circuit protection, overload protection
Range | Resolution | Output Range | Maximum Load [Source Internal Resistance] |
2 mV | 1 nV | 0.200 000 mV ~ 2.200 000 mV | [50 Ω] |
20 mV | 10 nV | 2.000 00 mV ~ 22.000 00 mV | [50 Ω] |
200 mV | 100 nV | 20.000 0 mV ~ 220.000 0 mV | [50 Ω] |
2 V | 1 μV | 0.200 000 V ~ 2.200 000 V | 50 mA |
20 V | 10 μV | 2.000 00 V ~ 22.000 00 V | 50 mA |
200 V | 100 μV | 20.000 0 V ~ 220.000 0 V | 50 mA |
1000 V | 1 mV | 100.000 V ~ 1100.000 V | 6 mA |
Range | Frequency (Hz) | Stability Tcal± 1°C | Absolute Measurement Uncertainty (k=2) Tcal± 5°C | |||
24 Hours | 24 Hours | 90 Days | 180 Days | 1 Year | ||
ppm*Output + μV | ||||||
2 mV | 10~20 | 0 + 5 | 200 + 4 | 220 + 4 | 230 + 4 | 240 + 4 |
20~40 | 0 + 5 | 80 + 4 | 85 + 4 | 87 + 4 | 90 + 4 | |
40~20k | 0 + 2 | 70 + 4 | 75 + 4 | 77 + 4 | 80 + 4 | |
20k~50k | 0 + 2 | 170 + 4 | 180 + 4 | 190 + 4 | 200 + 4 | |
50k~100k | 0 + 3 | 400 + 5 | 460 + 5 | 480 + 5 | 500 + 5 | |
100k~300k | 0 + 3 | 800 + 10 | 900 + 10 | 1000 + 10 | 1050 + 10 | |
300k~500k | 0 + 5 | 1100 + 20 | 1200 + 20 | 1300 + 20 | 1400 + 20 | |
500k~1M | 0 + 5 | 2400 + 20 | 2500 + 20 | 2600 + 20 | 2700 + 20 | |
20 mV | 10~20 | 0 + 5 | 200 + 4 | 220 + 4 | 230 + 4 | 240 + 4 |
20~40 | 0 + 5 | 80 + 4 | 85 + 4 | 87 + 4 | 90 + 4 | |
40~20k | 0 + 2 | 70 + 4 | 75 + 4 | 77 + 4 | 80 + 4 | |
20k~50k | 0 + 2 | 170 + 4 | 180 + 4 | 190 + 4 | 200 + 4 | |
50k~100k | 0 + 3 | 400 + 5 | 460 + 5 | 480 + 5 | 500 + 5 | |
100k~300k | 0 + 5 | 800 + 10 | 900 + 10 | 1000 + 10 | 1050 + 10 | |
300k~500k | 0 + 10 | 1100 + 20 | 1200 + 20 | 1300 + 20 | 1400 + 20 | |
500k~1M | 0 + 15 | 2400 + 20 | 2500 + 20 | 2600 + 20 | 2700 + 20 | |
200 mV | 10~20 | 150 + 20 | 200 + 12 | 220 + 12 | 230 + 12 | 240 + 12 |
20~40 | 80 + 15 | 80 + 7 | 85 + 7 | 87 + 7 | 90 + 7 | |
40~20k | 12 + 2 | 54 + 7 | 55 + 7 | 56 + 7 | 57 + 7 | |
20k~50k | 10 + 2 | 105 + 7 | 110 + 7 | 115 + 7 | 120 + 7 | |
50k~100k | 10 + 2 | 296 + 17 | 298 + 17 | 303 + 17 | 310 + 17 | |
100k~300k | 20 + 4 | 535 + 20 | 583 + 20 | 600 + 20 | 655 + 20 | |
300k~500k | 100 + 10 | 1100 + 25 | 1200 +25 | 1300 + 25 | 1400 + 25 | |
500k~1M | 200 + 20 | 2400 + 45 | 2500 + 45 | 2600 + 45 | 2700 + 45 | |
2 V | 10~20 | 150 + 20 | 200 + 40 | 220 + 40 | 230 + 40 | 240 + 40 |
20~40 | 80 + 15 | 75 + 15 | 80 + 15 | 85 + 15 | 90 + 15 | |
40~20k | 12 + 4 | 37 + 8 | 39 + 8 | 40 + 8 | 42 + 8 | |
20k~50k | 15 + 5 | 61 + 10 | 63 + 10 | 65 + 10 | 67 + 10 | |
50k~100k | 15 + 5 | 79 + 30 | 81 + 30 | 82 + 30 | 85 + 30 | |
100k~300k | 30 + 10 | 276 + 80 | 300 + 80 | 314 + 80 | 336 + 80 | |
300k~500k | 70 + 20 | 800 + 200 | 900 + 200 | 950 + 200 | 1000 + 200 | |
500k~1M | 150 + 50 | 1300 + 300 | 1500 + 300 | 1600 + 300 | 1700 + 300 | |
20 V | 10~20 | 150 + 20 | 200 + 400 | 220 + 400 | 230 + 400 | 240 + 400 |
20~40 | 80 + 15 | 75 + 150 | 80 + 150 | 85 + 150 | 90 + 150 | |
40~20k | 12 + 8 | 37 + 50 | 39 + 50 | 40 + 50 | 42 + 50 | |
20k~50k | 15 + 10 | 61 + 100 | 63 + 100 | 65 + 100 | 67 + 100 | |
50k~100k | 15 + 10 | 78 + 200 | 80 + 200 | 81 + 200 | 83 + 200 | |
100k~300k | 30 + 15 | 238 + 600 | 243 + 600 | 249 + 600 | 254 + 600 | |
300k~500k | 70 + 100 | 800 + 2000 | 900 + 2000 | 900 + 2000 | 1000 + 2000 | |
500k~1M | 150 + 100 | 1200 + 3200 | 1300 + 3200 | 1400 + 3200 | 1500 + 3200 | |
Range | Frequency (Hz) | ppm*Output + mV | ||||
200 V | 10~20 | 150 + 0.2 | 200 + 4 | 220 + 4 | 230 + 4 | 240 + 4 |
20~40 | 80 + 0.15 | 75 + 1.5 | 80 + 1.5 | 85 + 1.5 | 90 + 1.5 | |
40~20k | 12 + 0.08 | 45 + 0.6 | 47 + 0.6 | 50 + 0.6 | 52 + 0.6 | |
20k~50k | 15 + 0.1 | 70 + 1 | 75 + 1 | 77 + 1 | 80 + 1 | |
50k~100k | 15 + 0.1 | 120 + 2.5 | 130 + 2.5 | 140 + 2.5 | 150 + 2.5 | |
100k~300k | 30 + 0.4 | 700 + 16 | 800 + 16 | 850 + 16 | 900 + 16 | |
300k~500k | 100 + 10 | 4000 + 40 | 4200 + 40 | 4300 + 40 | 4400 + 40 | |
500k~1M | 200 + 20 | 6000 + 80 | 7000 + 80 | 7500 + 80 | 8000 + 80 | |
1000 V | 15~50 | 150 + 0.5 | 240 + 16 | 260 + 16 | 280 + 16 | 300 + 16 |
50~1k | 20 + 0.5 | 55 + 3.5 | 60 + 3.5 | 65 + 3.5 | 70 + 3.5 | |
• Range switching: manual/automatic
• Display digits: 7 decimal digits
• Protection functions: short circuit protection, overload protection
Nominal Value | Stability Tcal ± 1°C | Absolute Measurement Uncertainty (k=2) Tcal ± 5°C | |||
24 Hours | 24 Hours | 90 Days | 180 Days | 1 Year | |
ppm | |||||
0 Ω | — | 40 μΩ | 40 μΩ | 40 μΩ | 40 μΩ |
1 Ω | 32 | 70 | 80 | 85 | 95 |
1.9 Ω | 25 | 70 | 80 | 85 | 95 |
10 Ω | 5 | 20 | 21 | 22 | 23 |
19 Ω | 4 | 20 | 21 | 22 | 23 |
100 Ω | 2 | 8 | 9 | 9.5 | 10 |
190 Ω | 2 | 8 | 9 | 9.5 | 10 |
1 kΩ | 2 | 5.5 | 5.7 | 6 | 6.5 |
1.9 kΩ | 2 | 5.5 | 5.7 | 6 | 6.5 |
10 kΩ | 2 | 5 | 5.5 | 6 | 6.5 |
19 kΩ | 2 | 5 | 5.5 | 6 | 6.5 |
100 kΩ | 2 | 5.5 | 7.5 | 8 | 8.5 |
190 kΩ | 2 | 6 | 7 | 8 | 8.5 |
1 MΩ | 2.5 | 10 | 11 | 12 | 13 |
1.9 MΩ | 3.5 | 12 | 13.5 | 15 | 18 |
10 MΩ | 10 | 27 | 31 | 34 | 40 |
19 MΩ | 20 | 35 | 39 | 42 | 47 |
100 MΩ | 50 | 85 | 95 | 100 | 100 |
Range | Resolution | Output Range | Maximum Load Voltage |
200 μA | 100 pA | ± (0 ~ 220.000 0 μA) | 10 V |
2 mA | 1 nA | ± (0 ~ 2.200 000 mA) | 10 V |
20 mA | 10 nA | ± (0 ~ 22.000 00 mA) | 10 V |
200 mA | 100 nA | ± (0 ~ 220.000 0 mA) | 10 V |
2 A | 1 μA | ± (0 ~ 2.200 000 A) | 3 V |
Range | Stability Tcal ± 1°C | Absolute Measurement Uncertainty (k=2) Tcal ± 5°C | |||
24 Hours | 24 Hours | 90 Days | 180 Days | 1 Year | |
ppm*Output + nA | |||||
200 μA | 5 + 1 | 32 + 6 | 35 + 6 | 37 + 6 | 40 + 6 |
2 mA | 5 + 5 | 25 + 7 | 30 + 7 | 33 + 7 | 35 + 7 |
20 mA | 5 + 50 | 25 + 40 | 30 + 40 | 33 + 40 | 35 + 40 |
200 mA | 8 + 300 | 35 + 700 | 40 + 700 | 42 + 700 | 45 + 700 |
2 A | 9 + 7000 | 50 + 12000 | 60 + 12000 | 70 + 12000 | 80 + 12000 |
• Range switching: manual / automatic
• Display digits: 7 decimal digits
• Protection functions: open circuit protection, overload protection
Range | Resolution | Output Range | Maximum Load Voltage (rms) | Maximum Inductive Load |
200 μA | 100 pA | 9.000 0 μA ~ 220.000 0 μA | 7 V | 400 μH |
2 mA | 1 nA | 0.200 000 mA ~ 2.200 000 mA | 7 V | 400 μH |
20 mA | 10 nA | 2.000 00 mA ~ 22.000 00 mA | 7 V | 400 μH |
200 mA | 100 nA | 20.000 0 mA ~ 220.000 0 mA | 7 V | 400 μH |
2 A | 1 μA | 0.200 000 V ~ 2.200 000 A | 1.4 V | 400 μH [1] |
• [1] 20 μH for output current greater than 1 A. | ||||
Range | Frequency (Hz) | Stability Tcal ± 1°C | Absolute Measurement Uncertainty (k=2) Tcal ± 5°C | |||
24 Hours | 24 Hours | 90 Days | 180 Days | 1 Year | ||
ppm*Output + nA | ||||||
200 μA | 10~20 | 150 + 5 | 210 + 16 | 230 + 16 | 240 + 16 | 250 + 16 |
20~40 | 80 + 5 | 130 + 10 | 140 + 10 | 150 + 10 | 160 + 10 | |
40~1k | 30 + 3 | 96 + 8 | 99 + 8 | 101 + 8 | 103 + 8 | |
1k~5k | 50 + 20 | 240 + 12 | 250 + 12 | 270 + 12 | 280 + 12 | |
5k~10k | 400 + 100 | 800 + 65 | 900 + 65 | 1000 + 65 | 1100 + 65 | |
2 mA | 10~20 | 150 + 5 | 210 + 40 | 230 + 40 | 240 + 40 | 250 + 40 |
20~40 | 80 + 5 | 130 + 35 | 140 + 35 | 150 + 35 | 160 + 35 | |
40~1k | 30 + 3 | 96 + 35 | 99 + 35 | 101 + 35 | 103 + 35 | |
1k~5k | 50 + 20 | 170 + 110 | 180 + 110 | 190 + 110 | 200 + 110 | |
5k~10k | 400 + 100 | 800 + 650 | 900 + 650 | 1000 + 650 | 1100 + 650 | |
20 mA | 10~20 | 150 + 50 | 210 + 400 | 230 + 400 | 240 + 400 | 250 + 400 |
20~40 | 80 + 50 | 130 + 350 | 140 + 350 | 150 + 350 | 160 + 350 | |
40~1k | 30 + 30 | 96 + 350 | 99 + 350 | 101 + 350 | 103 + 350 | |
1k~5k | 50 + 500 | 170 + 550 | 180 + 550 | 190 + 550 | 200 + 550 | |
5k~10k | 400 + 1000 | 800 + 5000 | 900 + 5000 | 1000 + 5000 | 1100 + 5000 | |
Range | Frequency (Hz) | ppm*Output + μA | ||||
200 mA | 10~20 | 150 + 0.5 | 210 + 4 | 230 + 4 | 240 + 4 | 250 + 4 |
20~40 | 80 + 0.5 | 130 + 3.5 | 140 + 3.5 | 150 + 3.5 | 160 + 3.5 | |
40~1k | 30 + 0.3 | 96 + 2.5 | 99 + 2.5 | 101 + 2.5 | 103 + 2.5 | |
1k~5k | 50 + 3 | 170 + 3.5 | 180 + 3.5 | 190 + 3.5 | 200 + 3.5 | |
5k~10k | 400 + 5 | 800 + 10 | 900 + 10 | 1000 + 10 | 1100 + 10 | |
2 A | 20~1k | 50 + 5 | 214 + 35 | 224 + 35 | 234 + 35 | 244 + 35 |
1k~5k | 80 + 20 | 350 + 80 | 390 + 80 | 420 + 80 | 450 + 80 | |
5k~10k | 800 + 50 | 5000 + 160 | 6000 + 160 | 6500 + 160 | 7000 + 160 | |
• Range switching: manual / automatic
• Display digits: 7 decimal digits
• Protection functions: short circuit protection, overload protection
Output Range [1] | Resolution | Absolute Measurement Uncertainty (k=2) |
10.000 00 Hz ~ 99.999 99 Hz | 10 μHz | 0.005% |
100.000 0 Hz ~ 999.999 9 Hz | 0.1 mHz | 0.005% |
1.000 000 kHz ~ 9.999 999 kHz | 1 mHz | 0.005% |
10.000 00 kHz ~ 99.999 99 kHz | 10 mHz | 0.005% |
100.000 0 kHz ~ 999.999 9 kHz | 0.1 Hz | 0.005% |
1.000 000 MHz | 1 Hz | 0.005% |
• [1] Output mode: ACV or ACI | ||
Power Supply | AC (220 ± 22) V, (50 ± 3) Hz |
Preheat Time | 2 times the last preheating time, up to 30 minutes. |
Temperature Performance | Working temperature: 0 °C~50 °C Calibration temperature: 15 °C~35 °C Storage temperature: -40 °C~75 °C |
Humidity Performance | Working humidity: <80% @ ≤30 °C <70% @ ≤40 °C<40% @ ≤50 °C Storage humidity: <95%, no condensation. |
Altitude | ≤2000 m |
Communication Interface | RS232 x 1, USB x 1, LAN x 1 |
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