TD1870
TUNKIA
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TD1870 multifunction calibrator is a wide-range, high-precision multifunction calibrator. It integrates ultra-precise DC and AC voltage and current sources, capable of generating high-performance DC voltage, DC current, DC power, as well as AC voltage, AC current, AC power, phase, and frequency. Additionally, it features resistance simulation, thermocouple and RTD simulation, and pulse output functions. It is specifically designed for calibrating 5½-digit and lower digital multimeters and other precision electrical measurement instruments.
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
Sine wave frequency: 10 Hz ~ 500 kHz
Simulated DC resistance: 0 Ω ~ 1100 MΩ, continuously adjustable
2 MHz square wave frequency output
U-I phase adjustment output
AC/DC power output
8 types of thermocouple source and measurement (optional)
6 RTD outputs (optional)
Multiple range value output modes
Clamp meter calibration (optional)

☆ Calibrate AC\DC electrical measuring instruments |
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☆ Calibrate AC\DC power meters |
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☆ Calibrate temperature meters(optional) |
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☆ Calibrate clamp ammeter (optional) |
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TD1870 multifunction calibrator is a wide-range, high-precision multifunction calibrator. It integrates ultra-precise DC and AC voltage and current sources, capable of generating high-performance DC voltage, DC current, DC power, as well as AC voltage, AC current, AC power, phase, and frequency. Additionally, it features resistance simulation, thermocouple and RTD simulation, and pulse output functions. It is specifically designed for calibrating 5½-digit and lower digital multimeters and other precision electrical measurement instruments.
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
Sine wave frequency: 10 Hz ~ 500 kHz
Simulated DC resistance: 0 Ω ~ 1100 MΩ, continuously adjustable
2 MHz square wave frequency output
U-I phase adjustment output
AC/DC power output
8 types of thermocouple source and measurement (optional)
6 RTD outputs (optional)
Multiple range value output modes
Clamp meter calibration (optional)

☆ Calibrate AC\DC electrical measuring instruments |
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☆ Calibrate AC\DC power meters |
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|
☆ Calibrate temperature meters(optional) |
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☆ Calibrate clamp ammeter (optional) |
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☆ Front panel | |
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S/N | Description |
| LCD touch color screen: intuitive display of multiple power levels, touch operation, greatly improving the usability of the instrument. |
| Key operation panel: multiple value input and adjustment modes, greatly improving the convenience of instrument operation. |
| Pulse frequency output terminal: BNC female. |
| Resistor/thermal resistor output terminal: maximum voltage 20 V, maximum current 150 mA. |
| Capacitor output terminal (this function is not yet open). |
| AC/DC voltage output terminal: low thermal potential binding post with tellurium copper gold plating, maximum nominal voltage 1000 V. |
| Thermocouple output terminal: dedicated TC test connection socket. |
| AC/DC current output terminal: can be connected to Φ4 gun plug or U-shaped plug, maximum nominal current support 20 A. |
☆ Rear/Side Panel | |
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S/N | Description |
| Handle: The front and rear panels are each equipped with a pair of handles to facilitate users to move or carry the instrument. They are also used to protect the various connection terminals or interfaces on the front and rear panels of the instrument from being bumped or damaged during movement or transportation. |
| Foldable rubber feet: Raise the instrument slightly at an angle to obtain the best operating and reading viewing angle. |
| Communication interface: including USB/LAN/RS232, which can be connected to a computer to facilitate users to program and control the output of the multi-function standard source. |
| Power input interface: AC 220V power input interface with fuse. |
| power switch |
| Casing ground interface: The instrument should be grounded before operation to ensure electrical safety. |
| Instrument heat dissipation port: Heat is dissipated through the built-in radiator and fan to ensure the stability of the internal temperature of the instrument and improve measurement accuracy. |
☆ Wide output range |
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☆ High stability and accuracy |
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• The DC voltage stability is up to 4 ppm/24h. |
☆ 4-terminals Simulated DC resistance |
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• 2-terminals and 4-terminals resistance wiring mode. When calibrating the low value resistance, the four wire system wiring mode can effectively eliminate the measurement error caused by the resistance of the test lead and improve the measurement accuracy. • Advantages: Compared with the standard physical resistance box, the analog resistance output has the following characteristics: ☑ Continuously adjustable, with better adjustment fineness and sensitivity ☑ Smaller size and lighter weight ☑ No influence of transfer switch error, residual resistance error and contact resistance error. |
☆ Safety protection function |
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☆ Easy to operate |
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☆ Multiple output\adjustment methods |
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☆ Multiple output\adjustment methods |
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☆ Front panel | |
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S/N | Description |
| LCD touch color screen: intuitive display of multiple power levels, touch operation, greatly improving the usability of the instrument. |
| Key operation panel: multiple value input and adjustment modes, greatly improving the convenience of instrument operation. |
| Pulse frequency output terminal: BNC female. |
| Resistor/thermal resistor output terminal: maximum voltage 20 V, maximum current 150 mA. |
| Capacitor output terminal (this function is not yet open). |
| AC/DC voltage output terminal: low thermal potential binding post with tellurium copper gold plating, maximum nominal voltage 1000 V. |
| Thermocouple output terminal: dedicated TC test connection socket. |
| AC/DC current output terminal: can be connected to Φ4 gun plug or U-shaped plug, maximum nominal current support 20 A. |
☆ Rear/Side Panel | |
| |
S/N | Description |
| Handle: The front and rear panels are each equipped with a pair of handles to facilitate users to move or carry the instrument. They are also used to protect the various connection terminals or interfaces on the front and rear panels of the instrument from being bumped or damaged during movement or transportation. |
| Foldable rubber feet: Raise the instrument slightly at an angle to obtain the best operating and reading viewing angle. |
| Communication interface: including USB/LAN/RS232, which can be connected to a computer to facilitate users to program and control the output of the multi-function standard source. |
| Power input interface: AC 220V power input interface with fuse. |
| power switch |
| Casing ground interface: The instrument should be grounded before operation to ensure electrical safety. |
| Instrument heat dissipation port: Heat is dissipated through the built-in radiator and fan to ensure the stability of the internal temperature of the instrument and improve measurement accuracy. |
☆ Wide output range |
|
☆ High stability and accuracy |
|
• The DC voltage stability is up to 4 ppm/24h. |
☆ 4-terminals Simulated DC resistance |
|
• 2-terminals and 4-terminals resistance wiring mode. When calibrating the low value resistance, the four wire system wiring mode can effectively eliminate the measurement error caused by the resistance of the test lead and improve the measurement accuracy. • Advantages: Compared with the standard physical resistance box, the analog resistance output has the following characteristics: ☑ Continuously adjustable, with better adjustment fineness and sensitivity ☑ Smaller size and lighter weight ☑ No influence of transfer switch error, residual resistance error and contact resistance error. |
☆ Safety protection function |
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☆ Easy to operate |
|
|
☆ Multiple output\adjustment methods |
|
|
☆ Multiple output\adjustment methods |
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Range | Output Range | Accuracy(k=2) (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.
Range | Output Range | Accuracy(k=2)(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.
Range | Output Range | Accuracy(k=2)(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 |
| [1] Output is continuously adjustable | |||||
• Manual or automatic range switch.
• Over-current and reverse connection protection.
Range | Output Range | Frequency (Hz) | Accuracy(k=2)(Tcal±5°C) %*output + μV | Resolution | Max Burden [Source internal resistance] | |
90 days | 1 year | |||||
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 | ||||
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 | ||||
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 | ||||
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 | ||||
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 | ||||
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. | ||||||
Manual or automatic range switch.
Short-circuit and overload protection.
Range | Output Range | Frequency (Hz) | Accuracy(k=2)(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 | |||||
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 | |||||
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 | |||||
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.
Range | Resolution | Accuracy (k=2)(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% |
Phase | Accuracy(k=2)(Tcal±5°C) | ||||||
10~65Hz | 65~500Hz | 500~1kHz | 1k~5kHz | 5k~10kHz | 10k~30kHz | ||
φ | 0.15° | 0.8° | 1.5° | 5° | 8° | 12° | |
phase (φ) | Power factor (λ) | Power accuracy caused by phase[3] | |||||
10~65Hz | 65~500Hz | 500~1kHz | 1k~5kHz | 5k~10kHz | 10~65Hz | ||
0° | 1.00000 | 0.000% | 0.010% | 0.034% | 0.381% | 0.973% | 0° |
10° | 0.98481 | 0.047% | 0.256% | 0.496% | 1.917% | 3.427% | 10° |
20° | 0.93969 | 0.096% | 0.518% | 0.987% | 3.553% | 6.039% | 20° |
30° | 0.86603 | 0.151% | 0.816% | 1.546% | 5.412% | 9.008% | 30° |
40° | 0.76604 | 0.220% | 1.181% | 2.231% | 7.694% | 12.651% | 40° |
50° | 0.64279 | 0.312% | 1.674% | 3.154% | 10.767% | 17.559% | 50° |
60° | 0.50000 | 0.454% | 2.428% | 4.568% | 15.476% | 25.079% | 60° |
70° | 0.34202 | 0.720% | 3.846% | 7.226% | 24.326% | 39.221% | 70° |
80° | 0.17365 | 1.485% | 7.928% | 14.880% | 49.809% | 79.902% | 80° |
90° | 0.00000 | — | — | — | — | — | 90° |
Note: [1] Phase resolution: 0.001°; [2] Power factor resolution: 0.000 01; [3] Other power factor accuracy calculation formula: | |||||||
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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Range [1] | Resolution | Accuracy (k=2)(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. | |||
Type | Range °C | Measurement Uncertainty (k=2) (Tcal±5°C) °C | ||
Minimum | Maximum | 90 Days | 1 Year | |
B | 410 | 600 | 0.30 | 0.35 |
600 | 900 | 0.30 | 0.32 | |
900 | 1800 | 0.28 | 0.31 | |
E | -200 | 0 | 0.10 | 0.11 |
0 | 600 | 0.07 | 0.09 | |
600 | 1000 | 0.09 | 0.10 | |
J | -200 | -100 | 0.12 | 0.13 |
-100 | 750 | 0.09 | 0.10 | |
750 | 1200 | 0.10 | 0.11 | |
K | -200 | -100 | 0.15 | 0.20 |
-100 | 1000 | 0.10 | 0.11 | |
1000 | 1370 | 0.12 | 0.13 | |
N | -200 | -100 | 0.20 | 0.25 |
-100 | 400 | 0.12 | 0.13 | |
400 | 1300 | 0.10 | 0.12 | |
R | -50 | 50 | 0.30 | 0.40 |
50 | 300 | 0.28 | 0.32 | |
300 | 1000 | 0.22 | 0.23 | |
1000 | 1750 | 0.25 | 0.26 | |
S | -50 | 50 | 0.30 | 0.40 |
50 | 300 | 0.31 | 0.34 | |
300 | 1000 | 0.24 | 0.25 | |
1000 | 1750 | 0.22 | 0.23 | |
T | -200 | 100 | 0.17 | 0.25 |
-100 | 0 | 0.08 | 0.11 | |
0 | 400 | 0.08 | 0.09 | |
Note [1]: Resolution: 0.01 °C Note [2]: Output source internal resistance: 10 Ω Note [3]: Does not include thermocouple error Note [4]: When using external compensation, S, R, B, K, N, E, J, T conform to the ITS-90 international temperature scale. | ||||
Type | Range °C | Measurement Uncertainty (k=2) (Tcal±5°C) °C | ||
Minimum | Maximum | 90 Days | 1 Year | |
Pt385, 100 Ω | -200 | 0 | 0.05 | 0.05 |
0 | 300 | 0.08 | 0.08 | |
300 | 850 | 0.12 | 0.12 | |
Pt385, 200 Ω | -200 | 250 | 0.04 | 0.04 |
250 | 630 | 0.10 | 0.15 | |
Pt385, 500 Ω | -200 | -30 | 0.36 | 0.40 |
-30 | 630 | 0.10 | 0.11 | |
Pt385, 1000 Ω | -200 | 0 | 0.027 | 0.03 |
0 | 300 | 0.054 | 0.06 | |
300 | 600 | 0.063 | 0.07 | |
Cu50 | -50 | 150 | 0.09 | 0.10 |
Cu100 | -50 | 150 | 0.045 | 0.05 |
l [1] Resolution: 0.001 °C | ||||
Power supply | AC (220±22) V, (50±2) Hz |
Maximum power consumption | 500 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 |
Humidity performance | Operating humidity: <80% @ 30°C, <70% @ 40°C, <40% @ 50°C Storage humidity: <95%, No condensation |
Communication interface | RS232×1, USB×1, LAN×1 |
Dimensions | 444 mm(W)× 510 mm (D) × 205 mm (H), Handles and feet excluded. |
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| Function | TD1870A | TD1870B |
AC/DC voltage source (U) | ★ | ★ | |
AC/DC current source (I) | ★ | ★ | |
Simulated DC resistance (R) | ★ | ★ | |
AC/DC power output (P) | ★ | ★ | |
Square wave frequency output (F) | ★ | ★ | |
Simulated TC output &TC measurement(TC) | — | ★ | |
Simulated RTD output (RTD) | — | ★ |
Range | Output Range | Accuracy(k=2) (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.
Range | Output Range | Accuracy(k=2)(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.
Range | Output Range | Accuracy(k=2)(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 |
| [1] Output is continuously adjustable | |||||
• Manual or automatic range switch.
• Over-current and reverse connection protection.
Range | Output Range | Frequency (Hz) | Accuracy(k=2)(Tcal±5°C) %*output + μV | Resolution | Max Burden [Source internal resistance] | |
90 days | 1 year | |||||
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 | ||||
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 | ||||
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 | ||||
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 | ||||
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 | ||||
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. | ||||||
Manual or automatic range switch.
Short-circuit and overload protection.
Range | Output Range | Frequency (Hz) | Accuracy(k=2)(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 | |||||
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 | |||||
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 | |||||
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.
Range | Resolution | Accuracy (k=2)(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% |
Phase | Accuracy(k=2)(Tcal±5°C) | ||||||
10~65Hz | 65~500Hz | 500~1kHz | 1k~5kHz | 5k~10kHz | 10k~30kHz | ||
φ | 0.15° | 0.8° | 1.5° | 5° | 8° | 12° | |
phase (φ) | Power factor (λ) | Power accuracy caused by phase[3] | |||||
10~65Hz | 65~500Hz | 500~1kHz | 1k~5kHz | 5k~10kHz | 10~65Hz | ||
0° | 1.00000 | 0.000% | 0.010% | 0.034% | 0.381% | 0.973% | 0° |
10° | 0.98481 | 0.047% | 0.256% | 0.496% | 1.917% | 3.427% | 10° |
20° | 0.93969 | 0.096% | 0.518% | 0.987% | 3.553% | 6.039% | 20° |
30° | 0.86603 | 0.151% | 0.816% | 1.546% | 5.412% | 9.008% | 30° |
40° | 0.76604 | 0.220% | 1.181% | 2.231% | 7.694% | 12.651% | 40° |
50° | 0.64279 | 0.312% | 1.674% | 3.154% | 10.767% | 17.559% | 50° |
60° | 0.50000 | 0.454% | 2.428% | 4.568% | 15.476% | 25.079% | 60° |
70° | 0.34202 | 0.720% | 3.846% | 7.226% | 24.326% | 39.221% | 70° |
80° | 0.17365 | 1.485% | 7.928% | 14.880% | 49.809% | 79.902% | 80° |
90° | 0.00000 | — | — | — | — | — | 90° |
Note: [1] Phase resolution: 0.001°; [2] Power factor resolution: 0.000 01; [3] Other power factor accuracy calculation formula: | |||||||
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 |
| ||||
Range [1] | Resolution | Accuracy (k=2)(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. | |||
Type | Range °C | Measurement Uncertainty (k=2) (Tcal±5°C) °C | ||
Minimum | Maximum | 90 Days | 1 Year | |
B | 410 | 600 | 0.30 | 0.35 |
600 | 900 | 0.30 | 0.32 | |
900 | 1800 | 0.28 | 0.31 | |
E | -200 | 0 | 0.10 | 0.11 |
0 | 600 | 0.07 | 0.09 | |
600 | 1000 | 0.09 | 0.10 | |
J | -200 | -100 | 0.12 | 0.13 |
-100 | 750 | 0.09 | 0.10 | |
750 | 1200 | 0.10 | 0.11 | |
K | -200 | -100 | 0.15 | 0.20 |
-100 | 1000 | 0.10 | 0.11 | |
1000 | 1370 | 0.12 | 0.13 | |
N | -200 | -100 | 0.20 | 0.25 |
-100 | 400 | 0.12 | 0.13 | |
400 | 1300 | 0.10 | 0.12 | |
R | -50 | 50 | 0.30 | 0.40 |
50 | 300 | 0.28 | 0.32 | |
300 | 1000 | 0.22 | 0.23 | |
1000 | 1750 | 0.25 | 0.26 | |
S | -50 | 50 | 0.30 | 0.40 |
50 | 300 | 0.31 | 0.34 | |
300 | 1000 | 0.24 | 0.25 | |
1000 | 1750 | 0.22 | 0.23 | |
T | -200 | 100 | 0.17 | 0.25 |
-100 | 0 | 0.08 | 0.11 | |
0 | 400 | 0.08 | 0.09 | |
Note [1]: Resolution: 0.01 °C Note [2]: Output source internal resistance: 10 Ω Note [3]: Does not include thermocouple error Note [4]: When using external compensation, S, R, B, K, N, E, J, T conform to the ITS-90 international temperature scale. | ||||
Type | Range °C | Measurement Uncertainty (k=2) (Tcal±5°C) °C | ||
Minimum | Maximum | 90 Days | 1 Year | |
Pt385, 100 Ω | -200 | 0 | 0.05 | 0.05 |
0 | 300 | 0.08 | 0.08 | |
300 | 850 | 0.12 | 0.12 | |
Pt385, 200 Ω | -200 | 250 | 0.04 | 0.04 |
250 | 630 | 0.10 | 0.15 | |
Pt385, 500 Ω | -200 | -30 | 0.36 | 0.40 |
-30 | 630 | 0.10 | 0.11 | |
Pt385, 1000 Ω | -200 | 0 | 0.027 | 0.03 |
0 | 300 | 0.054 | 0.06 | |
300 | 600 | 0.063 | 0.07 | |
Cu50 | -50 | 150 | 0.09 | 0.10 |
Cu100 | -50 | 150 | 0.045 | 0.05 |
l [1] Resolution: 0.001 °C | ||||
Power supply | AC (220±22) V, (50±2) Hz |
Maximum power consumption | 500 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 |
Humidity performance | Operating humidity: <80% @ 30°C, <70% @ 40°C, <40% @ 50°C Storage humidity: <95%, No condensation |
Communication interface | RS232×1, USB×1, LAN×1 |
Dimensions | 444 mm(W)× 510 mm (D) × 205 mm (H), Handles and feet excluded. |
|
| Function | TD1870A | TD1870B |
AC/DC voltage source (U) | ★ | ★ | |
AC/DC current source (I) | ★ | ★ | |
Simulated DC resistance (R) | ★ | ★ | |
AC/DC power output (P) | ★ | ★ | |
Square wave frequency output (F) | ★ | ★ | |
Simulated TC output &TC measurement(TC) | — | ★ | |
Simulated RTD output (RTD) | — | ★ |
