1. Summary
TD1858 is a high precision and multi-function calibrator, integrates AC\DC voltage source, AC\DC current source, DC resistance source, etc. It is portable and very suitable for on-site calibration
2. Features
• DC voltage output: +(10 mV ~ 1020 V), -(10 mV ~ 10.4 V)
• DC current output: ± (10 μA ~ 10.2 A)
• AC voltage output: 10 mV ~ 1020 V
• AC current output: 10 μA ~ 10.4 A
• Sinusoidal Wave frequency: 10 Hz ~ 20 kHz
• Simulated DC resistance:1 Ω ~ 220 MΩ
• 2 MHz Square wave frequency output
• Thermocouple outputs (optional)
• Clamp meter calibration (optional)
• 4.3-inch Color Touch Screen
3. Application
☆ Calibrate AC\DC electrical measuring instruments |
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• DCV output: +(10 mV ~ 1020 V), -(10 mV ~ 10.4 V) • DCI output: ± (10 μA ~ 10.2 A) • ACV output: 10 mV ~ 1020V, 10 Hz ~ 20 kHz • ACI output: 10 μA ~ 10.4 A, 10 Hz ~ 2 kHz • RES output: 1 Ω ~ 220 MΩ • Frequency output:1 Hz ~ 2 MHz • Calibrate digital multimeter, AC/DC voltmeter, AC/DC ammeter, DC ohmmeter, frequency 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 thermocouple (optional) |
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• Type of Thermocouple (TC) Output:J, K, T, R, S, B, N, E, L, U, C. |
4. Panel Features
☆ Front\Side Panel | |
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S/N | Description |
| LCD touch screen. |
| AC/DC voltage and Simulated DC resistance output terminals. |
| AC/DC current output terminals. |
| Pulse frequency output terminals. |
| Thermocouple output/measurement terminals. |
| Operation panel. |
| Foldable feets. |
☆ Rear Panel | |
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S/N | Description |
| Embedded handle. |
| USB、LAN、RS232 interface. |
| Cooling vents. |
| Power switch. |
| AC 220V power interface. |
| Chassis ground binding post. |
5. Characteristics
☆ Wide output range |
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☆ Excellent portability |
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• The overall weight is less than 10 kg. |
☆ Multiple output\adjustment methods |
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• “Direct output” mode: the value output can be set directly by physical key or touch screen. |
☆ Multiple output\adjustment methods |
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• “Rotary Knob”mode,User can setting in clockwise direction or anticlockwise direction. |
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• Use the key ↑10%、↓10%、× 10、÷10 on the front panel, can realize the adjustment of the quantity value, and can also be used to perform the relevant test of linearity. |
6. Specifications
6.1 DC Voltage Output
Range | Resolution | Accuracy ± (ppm*RD + μV) [1] | Max Burden (mA) | Ripple Factor (%) | ||
24 hours (23±1)°C | 90 days (23±5)°C | 1 year (23±5)°C | ||||
100mV | 1 μV | 40 + 10 | 64 + 10 | 80 + 10 | 100 | <0.1 |
1 V | 10 μV | 40 + 30 | 64 + 30 | 80 + 30 | 100 | <0.1 |
10 V | 100 μV | 40 + 300 | 64 + 300 | 80 + 300 | 100 | <0.1 |
100 V | 1 mV | 40 + 3000 | 64 + 3000 | 80 + 3000 | 25 | <0.1 |
1000 V | 10 mV | 40 + 30000 | 64 + 30000 | 80 + 30000 | 12 | <0.1 |
Note [1]: RD is the reading value, same below. |
• Output range: +(10 mV ~ 1020 V), -(10 mV ~ 10.4 V)
• 6 digits display
• Short-circuit and overload protection
6.2 DC Current Output
Range | Resolution | Accuracy ± (%*RD + μA) | Compliance Voltage (V) | Ripple Factor (%) | ||
24 hours (23±1)°C | 90 days (23±5)°C | 1 year (23±5)°C | ||||
100 μA | 1 nA | 0.01+0.03 | 0.016+0.03 | 0.02+0.03 | 8 | <0.5 |
1 mA | 10 nA | 0.01+0.1 | 0.016+0.1 | 0.02+0.1 | 8 | <0.2 |
10 mA | 100 nA | 0.01+ 1 | 0.016+ 1 | 0.02+ 1 | 8 | <0.1 |
100 mA | 1 μA | 0.01+ 10 | 0.016+ 10 | 0.02+ 10 | 8 | <0.1 |
1 A | 10 μA | 0.01+ 100 | 0.016+ 100 | 0.02+ 100 | 4.2 | <0.1 |
10 A | 100μA | 0.015+ 2000 | 0.024+ 2000 | 0.03+ 2000 | 3.9 | <0.1 |
• Output range: ± (10 μA ~ 10.2 A)
• 6 digits display
• Open-circuit and overload protection
6.3 AC Voltage Output
Range | Resolution | Frequency (Hz) | Accuracy ±(%*RD + mV) | Max Burden (mA) | Harmonic (%) | ||
24 hours (23±1)°C | 90 days (23±5)°C | 1 year (23±5)°C | |||||
100 mV | 1 μV | 10 ~ 2k | 0.02 + 0.03 | 0.032 + 0.03 | 0.04 + 0.03 | 100 | <0.5 |
2k ~ 20k | 0.03 + 0.05 | 0.048 + 0.05 | 0.06 + 0.05 | ||||
1 V | 10 μV | 10 ~ 2k | 0.015 + 0.2 | 0.024 + 0.2 | 0.03 + 0.2 | 100 | <0.5 |
2k ~ 20k | 0.025 + 0.5 | 0.040 + 0.5 | 0.05 + 0.5 | ||||
10 V | 100 μV | 10 ~ 2k | 0.015 + 2 | 0.024 + 2 | 0.03 + 2 | 100 | <0.5 |
2k ~ 20k | 0.025 + 5 | 0.040 + 5 | 0.05 + 5 | ||||
100 V | 1 mV | 40 ~ 1k | 0.03 + 30 | 0.048 + 30 | 0.06 + 30 | 20 | <0.5 |
1000 V | 10 mV | 40 ~ 1k | 0.03 + 300 | 0.048 + 300 | 0.06 + 300 | 12 | <0.5 |
• Output range: 10 mV ~ 11 V @ 10 Hz ~ 20 kHz, 10 V~1020V @ 40 Hz~1 kHz
• 6 digits display
• Short-circuit and overload protection
6.4 AC Current Output
Range | Resolution | Frequency (Hz) | Accuracy ±(%*RD+μA) | Compliance Voltage (V) | Harmonic (%) | ||
24 hours (23±1)°C | 90 days (23±5)°C | 1 year (23±5)°C | |||||
100 μA | 1 nA | 10 ~ 2k | 0.03+0.24 | 0.048+0.24 | 0.06+0.24 | 6 | <0.5 |
1 mA | 10 nA | 10 ~ 2k | 0.025+0.5 | 0.04+0.5 | 0.05+0.5 | 6 | <0.5 |
10 mA | 100 nA | 10 ~ 2k | 0.025+5 | 0.04+5 | 0.05+ 5 | 6 | <0.5 |
100 mA | 1 μA | 10 ~ 2k | 0.025+50 | 0.04+50 | 0.05+50 | 6 | <0.5 |
1 A | 10 μA | 10 ~ 2k | 0.025+600 | 0.04+600 | 0.05+600 | 4 | <0.5 |
10 A | 100 μA | 10 ~ 2k | 0.03+9000 | 0.048+9000 | 0.06+9000 | 3.6 | <0.5 |
• Output range: 10 μA ~ 10.4 A @ 10 Hz ~ 2 kHz
• 6 digits display
• Open-circuit and overload protection
6.5 Simulated DC Resistance
Range | Resolution | Accuracy,±(%*RD+Ω) | Allowable Current | ||
24 hours (23±1)°C | 90 days (23±5)°C | 1 year (23±5)°C | |||
10 Ω | 100 μΩ | 0.025 + 0.05 | 0.03+0.05 | 0.05+0.05 | 1mA~150 mA |
100 Ω | 1 mΩ | 0.015+0.02 | 0.024+0.02 | 0.03+0.02 | 1mA~80 mA |
1 kΩ | 10 mΩ | 0.015+0.2 | 0.024+0.2 | 0.03+0.2 | 0.1mA~8 mA |
10 kΩ | 100 mΩ | 0.015+2 | 0.024+2 | 0.03+ 2 | 10μA~800μA |
100 kΩ | 1 Ω | 0.015+2 | 0.024+2 | 0.03+ 20 | 10μA~200μA |
1 MΩ | 10 Ω | 0.015+20 | 0.024+20 | 0.03+ 200 | 1μA~20 μA |
10 MΩ | 100 Ω | 0.03 + 4000 | 0.048 + 4000 | 0.06+ 4000 | 0.25μA~20 μA |
100 MΩ | 1 kΩ | 0.15 + 200k | 0.24 + 200k | 0.3+200k | 25nA~200nA |
200 MΩ | 1 kΩ | 0.18 + 500k | 0.28 + 500k | 0.35+500k | 15nA~100nA |
• Output range: 10 Ω ~ 220 MΩ
• 6 digits display
• Over-current and reverse connection protection
6.6 Sinusoidal Wave Frequency Output
Range[2] | Resolution | Accuracy |
10.0000 Hz ≤ F ≤ 99.9999 Hz | 0.1 mHz | ±0.01% |
100.000 Hz ≤ F ≤ 999.999 Hz | 1 mHz | ±0.01% |
1.000 00kHz ≤ F ≤ 9.999 99kHz | 10 mHz | ±0.01% |
10.000 0 kHz ≤ F ≤ 20.000 0 kHz | 0.1 Hz | ±0.01% |
Note [2]: The output mode is AC voltage or AC current. |
6.7 Pulse Frequency Output
Range [3] | 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 [3]:The output type is TTL level. |
6.8 Thermocouple Output (optional)
Type | Range[4] [5] °C | Accuracy (°C) @ (23±5)°C[6] | ||
Min | Max | 90 days | 1 year | |
J | -210 | -100 | 0.32 | 0.40 |
-100 | 760 | 0.16 | 0.20 | |
760 | 1200 | 0.28 | 0.35 | |
K | -200 | -100 | 0.40 | 0.50 |
-100 | 120 | 0.20 | 0.25 | |
120 | 1370 | 0.36 | 0.45 | |
T | -200 | -150 | 0.80 | 1.00 |
-150 | 400 | 0.16 | 0.20 | |
R | -50 | 250 | 1.20 | 1.50 |
250 | 1760 | 0.72 | 0.90 | |
S | -50 | 250 | 1.20 | 1.50 |
250 | 1760 | 0.72 | 0.90 | |
B | 410 | 1820 | 1.12 | 1.40 |
N | -200 | -100 | 0.64 | 0.80 |
-100 | 410 | 0.28 | 0.35 | |
410 | 1300 | 0.36 | 0.45 | |
E | -250 | -100 | 0.64 | 0.80 |
-100 | 650 | 0.16 | 0.20 | |
650 | 1000 | 0.20 | 0.25 | |
L | -200 | 900 | 0.48 | 0.60 |
U | -200 | 900 | 0.60 | 0.75 |
C | 0 | 1000 | 0.40 | 0.50 |
1000 | 2310 | 1.04 | 1.30 | |
Note [4]: temperature display resolution: 0.01 °C; Note [5]: Internal resistance of output source: 10 Ω; Note [6]: thermocouple error is not included. Note [7]: Use external compensation, J, K, T, R, S, B, N, E conform to ITS-90 international temperature standard, L, U conform to DIN 43710-1985 standard, C conform to ASTM standard. |
7. Ordering Information
8. General Specifications
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~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 | RS232×1, LAN×1, USB×1 |
Dimensions | 210 mm(W)× 365 mm (D) ×266 mm (H),excluding handles and feets. |
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Weight | About 9.5 kg |
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