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TD1850 Multifunction Calibrator

TD1850 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.

Range:	DCV: 20 mV ~ 1100 V DCI: 2 μA ~ 22 A (33 A is optional) ACV: 20 mV ~ 1100 V ACI: 200 μA ~ 22 A (33 A is optional) F: 45 Hz ~ 1100 Hz R: 10 Ω ~ 220 MΩ
DUT:	3.5 digit multimeters
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Model:
TD1850
Brand:
TUNKIA

TD1850 Multi-function Calibrator

1. Summary

TD1850 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

• Remote adjustment (optional)

• Clamp meter calibration (optional)

• Transducer calibration(optional)

• 7.0-inch Color Touch Screen

3. Application

TD1850 Multi-function Calibrator Application

☆ Calibrate AC\DC electrical measuring instruments

$TD1850 Multi-function Calibrator Calibrate AC\DC electrical measuring instruments$

• 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 clamp ammeter (optional)

TD1850 Multi-function Calibrator Calibrate clamp ammeter (optional)

• 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)

TD1850 Multi-function Calibrator Calibrate AC/DC Transducer (optional)

• DC small-signal measurement. (Vmax: 12 V, Imax: 24 mA)

• Calibrate the proportional error of AC/DC voltage/current transducer.

6. Specifications

6.1 DC Voltage/Current Output

Range	Resolution	Stability (±%/min)	Accuracy ±(ppmRD+ppmRG)[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

Ranges	Resolution	Stability (± %/min)	Accuracy ± (ppmRD+ppmRG)	Compliance Voltage (V)	Ripple Factor(%)
20 μA	100pA	0.01	300 + 200	10	<0.5
200 μA	1 nA	0.01	300 + 200	9	<0.5
2 mA	10 nA	0.01	300 + 200	9	<0.5
20 mA	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 ± (ppmRD+ppmRG)	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 ± (ppmRD+ppmRG)	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: 2 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 ± (ppmRD+ppmRG)	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 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.

6.6 DC Small-signal Measurement (optional)

Type	Range	Measurement range	Accuracy
DCV	1 V	±(0 ~ 1.2) V	±(0.006%RD + 0.004%RG)
DCV	10 V	±(0 ~ 12) V	±(0.006%RD + 0.004%RG)
DCI	2 mA	±(0 ~ 2.4) mA	±(0.006%RD + 0.004%RG)
DCI	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	RS 232
Dimensions	475 mm(W) ×400 mm (D) ×190 mm (H), excluding handles and feets.
Dimensions
Weight	About 18 kg

8. Ordering Information

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TD1858 Portable Multifunction Calibrator

TD1855 Multifunction Calibrator

TD1500 High-precision DC Testing System

TD1000 Calibration Device for Clamp Meters

TD1050 Calibration Device for Clamp Meter

TD1020 Current Coil

☆ Front\Side Panel
$TD1850 Multi-function Calibrator Front\Side Panel$
Item	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

Item	Description
	Pulse frequency output terminals.
	Remote box interface.
	RS232 communication interface.
	Chassis ground binding post.
	AC 220V power interface.
	Cooling vents.

☆ Front\Side Panel
$TD1850 Multi-function Calibrator Front\Side Panel$
Item	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

Item	Description
	Pulse frequency output terminals.
	Remote box interface.
	RS232 communication interface.
	Chassis ground binding post.
	AC 220V power interface.
	Cooling vents.

TD1850 Multifunction Calibrator

TD1850 Multi-function Calibrator

TD1850 Multi-function Calibrator

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