What is the warranty period for the TD1250?

The device comes with a 12-month warranty and lifetime after-sales service.

What accuracy classes are available?

The TD1250 offers accuracy classes of 0.02, 0.05, and 0.1.

Can the device measure harmonics?

Yes, it supports 2nd to 32nd harmonic measurement and displays THD/T and THD/F.

What is the maximum current output?

The standard range is up to 36 A, with an optional 50 A range reaching up to 60 A.

Does it support AC and DC measurements?

Yes, it supports both AC (45-65 Hz) and DC measurement modes with ripple analysis.

How is the resistance value set?

Users can set output values via physical keys or the LCD touch screen.

Is the device customizable?

No, the product is listed as Non-Customized.

Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester

Tunkia Co., Ltd.

6 yrs

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Product Highlights

High Precision Calibration: Accuracy classes 0.02, 0.05, and 0.1 for reliable earth continuity tester calibration.
Advanced Current Measurement: Measures AC/DC current from 0.5 A to 60 A with optional high-range configurations.
Harmonic & Ripple Analysis: Supports 2nd-32nd harmonic measurement and DC ripple test with up to 1 kHz bandwidth.
Four-Terminal Connection: Eliminates lead resistance errors for precise low-resistance measurements.
LCD Touch Screen Interface: Intuitive operation with real-time waveform display and data statistics functions.
Comprehensive Data Statistics: Records Max, Min, Avg, Span, Stab, and deviation for detailed test analysis.
Lifetime After-Sales Service: Provides lifetime technical support and service for the TD1250 calibration device.

Product Attributes

Customization: Available
After-sales Service: Life Time
Warranty: 12 Months Excellent for Service
Model NO.: TD1250
Power: Electricity
Voltage Output: 264V
Current Output: 120A
LCD Display: With LCD Display
Customized: Non-Customized
Transport Package: Package for Exporting
Trademark: TUNKIA
Origin: China
Production Capacity: 1000

Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester pictures & photos — Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester

Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester
Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester
Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester
Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester
Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester
Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester

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Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester
Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester
Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester
Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester
Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester
Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester

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Product Description

TD1250 Testing Apparatus for Earth Continuity Testers

Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester

1. Summary

TD1250 is a precision AC/DC artificial resistance, intergraded a AC/DC ammeter. Applied for calibrating earth continuity tester and other AC/DC low resistance instruments. It can calibrate max permissible error, alarm setting error, test current setting error etc.

2. Features

DC resistance simulation:200 μΩ (100 μΩ optional)~20 Ω.
AC resistance simulation:500 μΩ (300 μΩ optional)~15 Ω.
AC/DC current measurement:0.5 A~36 A(60A option).
Accuracy class:0.02/ 0.05/ 0.1.
Harmonic and ripple function.
Current waveform display function.
With data statistics and analysis, stability test function.
LCD touch screen.
Setting output values by keys.

3. Applications

4. Characteristics

☆ Resistance Output

Using four-terminals connections, can effective eliminate the measurement error introduced by the lead resistance.

☆ Multiple Output Mode

"Direct output"mode,User can set output value by physical key or touch screen.

"Rotary Knob"mode,User can setting in clockwise direction or anticlockwise direction.

☆ Multiple Output Mode

Touch "Calibration point"of screen for "% setting".

☆ AC+DC Measurement

Support DC/AC)measurement mode. AC frequency range:45 Hz ~ 65 Hz.
Distortion and ripple test,max bandwidth of DC ripple reaches 1 kHz. Supports 2^nd~32^nd harmonics.

☆ DC Characteristic Analysis

Serial Number	Explanation
	Current overshoot : The maximum value of the test current is displayed in DC mode, which is used to calculate the operating current overshoot;
	Waveform display:With oscilloscope function ,can real time display of measured current waveform.
	Ripple measurement:the instrument directly displays the ripple measurement results on the screen for users to read.

☆ AC Characteristic Analysis

Serial Number	Explanation
	Harmonic distortion:Display THD/T(harmonic vs. full wave),THD/F(harmonic vs. fundamental). Easy for users to real intuitively.
	Harmonic data:Display the amplitude (RMS), content(%), phase of the 2^nd~32^ndharmonic, facilitate user analysis.
	DC component:Display the DC component in the AC current signal. Easy for users to real intuitively.
	Waveform display:with waveform display function, real time display of measured current waveform.

☆ Statistical Analysis

Serial Number	Function Description
	Scoring cycle:0.5 s ~ 20 s integration period can be set(1s by default); it is convenient for users to set sampling data according to actual needs.
	Statistical analysis:Real time record and statistics of current test data, including Max, Min, Avg, Span, Stab, S.dev, Time, test times N,etc; Easy for users to real intuitively.

5. Specifications

5.1 DC Current Measurement

Range	Resolution	Accuracy ±(ppm of reading + ppm of range)^[1]
Range	Resolution	Class 0.1		Class 0.05	Class 0.02
1 A	10 μA		0.05 + 1.5	0.02 + 1.0	0.01 + 0.5
2 A	10 μA		0.05 + 1.5	0.02 + 1.0	0.01 + 0.5
5 A	10 μA		0.05 + 1.5	0.02 + 1.0	0.01 + 0.5
10 A	100 μA		0.05 + 1.5	0.02 + 1.0	0.01 + 0.5
20 A	100 μA		0.05 + 2.5	0.02 + 2.0	0.01 + 1.0
30 A	100 μA		0.05 + 5.0	0.02 + 3.0	0.01 + 2.0
50 A^[2]	100 μA		0.05 + 5.0	0.02 + 3.0	0.01 + 2.0
Note [1] : (ppm = parts per million) (e.g.,10ppm = 0.001%). Note [2]: 50 A Range is optional Accessories

Measuring range(TD1250-30A specification, max range:30 A):0.5 A~36 A.
Measuring range(TD1250-50A specification, max range: 50 A):0.5 A~60 A.
Ripple frequency bandwidth: 1 Hz ~ 1 kHz, accuracy: ±0.02%*RG,effective value.

5.2 AC Current Measurement

Range	Resolution	Accuracy ±(ppm of reading + ppm of range)^[1]
Range	Resolution	Class 0.1		Class 0.05	Class 0.02
1 A	10 μA		0.10 + 3.0	0.05 + 2.0	0.02 + 1.0
2 A	10 μA		0.10 + 3.0	0.05 + 2.0	0.02 + 1.0
5 A	10 μA		0.10 + 3.0	0.05 + 2.0	0.02 + 1.0
10 A	100 μA		0.10 + 3.0	0.05 + 2.0	0.02 + 1.0
20 A	100 μA		0.10 + 5.0	0.05 + 3.0	0.02 + 2.0
30 A	100 μA		0.10 + 10	0.05 + 5.0	0.02 + 5.0
50 A^[2]	100 μA		0.10 + 10	0.05 + 5.0	0.02 + 5.0

Measuring range(TD1250-30A specification, max range:30 A):0.5 A~36 A.
Measuring range(TD1250-50A specification, max range: 50 A):0.5 A~60 A.
AC frequency: 45 Hz ~ 65 Hz, accuracy: ±0.01 Hz, harmonic measurement: 2^nd~32^nd.

5.3 DC Simulated Resistance

Current Range	Setting Range of Resistance Value R	Adjustment Fineness	Accuracy ±(*A%reading+R**₀)
Current Range	Setting Range of Resistance Value R	Adjustment Fineness	Class 0.1	Class 0.05	Class 0.02
50 A^[2]	100 μΩ ≤ R ≤ 4 mΩ	20 nΩ	0.1 + 3 μΩ	0.08 + 1.5 μΩ	0.04 + 0.8 μΩ
	4 mΩ < R ≤ 40 mΩ	200 nΩ	0.1 + 3 μΩ	0.06 + 1.5 μΩ	0.03 + 0.8 μΩ
	40 mΩ < R ≤ 400 mΩ	2 μΩ	0.1	0.05	0.02
30A	200 μΩ ≤ R ≤ 6 mΩ	30 nΩ	0.1 + 5 μΩ	0.08 + 3 μΩ	0.04 + 1.5 μΩ
	6 mΩ < R ≤ 60 mΩ	300 nΩ	0.1 + 5 μΩ	0.06 + 3 μΩ	0.03 + 1.5 μΩ
	60 mΩ < R ≤ 600 mΩ	3 μΩ	0.1	0.05	0.02
20A	400 μΩ ≤ R ≤ 10 mΩ	100 nΩ	0.1 + 6 μΩ	0.08 + 5 μΩ	0.04 + 2.5 μΩ
	10 mΩ < R ≤ 100 mΩ	1 μΩ	0.1 + 6 μΩ	0.06 + 5 μΩ	0.03 + 2.5 μΩ
	100 mΩ ≤ R ≤ 1 Ω	10 μΩ	0.1	0.05	0.02
10A	800 μΩ ≤ R ≤ 20 mΩ	100 nΩ	0.1 + 15 μΩ	0.08 + 6 μΩ	0.04 + 3 μΩ
	20 mΩ < R ≤ 200 mΩ	1 μΩ	0.1 + 15 μΩ	0.06 + 6 μΩ	0.03 + 3 μΩ
	200 mΩ < R ≤ 2 Ω	10 μΩ	0.1	0.05	0.02
5A	1.6 mΩ ≤ R ≤ 40 mΩ	200 nΩ	0.15 + 30 μΩ	0.09 + 15 μΩ	0.045 + 6 μΩ
	40 mΩ < R ≤ 400 mΩ	2 μΩ	0.12 + 30 μΩ	0.07 + 15 μΩ	0.035 + 6 μΩ
	400 mΩ < R ≤ 4 Ω	20 μΩ	0.1	0.05	0.025
2A	4 mΩ ≤ R ≤ 100 mΩ	1 μΩ	0.20 + 50 μΩ	0.10 + 30 μΩ	0.055 + 15 μΩ
	100 mΩ < R ≤ 1 Ω	10 μΩ	0.20 + 50 μΩ	0.10 + 30 μΩ	0.045 + 15 μΩ
	1 Ω < R ≤ 10 Ω	100 μΩ	0.1	0.05	0.035
1A	8 mΩ ≤ R ≤ 200 mΩ	1 μΩ	0.30 + 90 μΩ	0.15 + 50 μΩ	0.08 + 30 μΩ
	200 mΩ < R ≤ 2 Ω	10 μΩ	0.30 + 90 μΩ	0.15 + 50 μΩ	0.07 + 30 μΩ
	2 Ω < R ≤ 20 Ω	100 μΩ	0.2	0.1	0.06
Note [2]: 50 A Range is optional Accessories

Simulated resistance range(TD1250-30A specification, maximum range: 30 A):200 μΩ~20 Ω

Simulated resistance range(TD1250-50A specification, maximum range: 50 A):100 μΩ~20 Ω

Display Digits:6-digit decimal display, set the resistance value through the number keys.

5.4 AC Simulated Resistance

Current Range	Setting Range of Resistance Value R	Adjustment Fineness	Accuracy ±(*A%reading+R**₀)
Current Range	Setting Range of Resistance Value R	Adjustment Fineness	Class 0.1	Class 0.05	Class 0.02
50 A^[2]	300 μΩ ≤ R ≤ 3 mΩ	20 nΩ	0.3 + 5 μΩ	0.15 + 3 μΩ	0.08 + 1.5 μΩ
	3 mΩ < R ≤ 30 mΩ	200 nΩ	0.24 + 5 μΩ	0.12 + 3 μΩ	0.06 + 1.5 μΩ
	30 mΩ < R ≤ 300 mΩ	2 μΩ	0.2	0.1	0.04
30A	500 μΩ ≤ R ≤ 5 mΩ	30 nΩ	0.3 + 8 μΩ	0.15 + 5 μΩ	0.08 + 2.5 μΩ
	5 mΩ < R ≤ 50 mΩ	300 nΩ	0.24 + 8 μΩ	0.12 + 5 μΩ	0.06 + 2.5 μΩ
	50 mΩ < R ≤ 500 mΩ	3 μΩ	0.2	0.1	0.04
20A	750 μΩ ≤ R ≤ 7.5 mΩ	50 nΩ	0.3 + 10 μΩ	0.15 + 6 μΩ	0.08 + 4 μΩ
	7.5 mΩ < R ≤ 75 mΩ	500 nΩ	0.24 + 10 μΩ	0.12 + 6 μΩ	0.06 + 4 μΩ
	75 mΩ ≤ R ≤ 750 mΩ	5 μΩ	0.2	0.10	0.04
10A	1.5 mΩ < R ≤ 15 mΩ	100 nΩ	0.3 + 20 μΩ	0.15 + 12 μΩ	0.08 + 8 μΩ
	15 mΩ < R ≤ 150 mΩ	1 μΩ	0.24 + 20 μΩ	0.12 + 12 μΩ	0.06 + 8 μΩ
	150 mΩ < R ≤ 1.5 Ω	10 μΩ	0.2	0.1	0.04
5A	3 mΩ ≤ R ≤ 30 mΩ	200 nΩ	0.3 + 20 μΩ	0.2 + 15 μΩ	0.1 + 12 μΩ
	30 mΩ < R ≤ 300 mΩ	2 μΩ	0.3 + 20 μΩ	0.15 + 15 μΩ	0.07 + 12 μΩ
	300 mΩ < R ≤ 3 Ω	20 μΩ	0.2	0.1	0.05
2A	7.5 mΩ ≤ R ≤ 75 mΩ	5 μΩ	0.4 + 80 μΩ	0.2 + 50 μΩ	0.11 + 30 μΩ
	75 mΩ < R ≤ 750 mΩ	50 μΩ	0.4 + 80 μΩ	0.2 + 50 μΩ	0.09 + 30 μΩ
	750 mΩ < R ≤ 7.5 Ω	500 μΩ	0.2	0.14	0.07
1A	15 mΩ ≤ R ≤ 150 mΩ	1 μΩ	0.6 + 150 μΩ	0.3 + 90 μΩ	0.16 + 60 μΩ
	150 mΩ < R ≤ 1.5 Ω	10 μΩ	0.6 + 150 μΩ	0.3 + 90 μΩ	0.14 + 60 μΩ
	1.5 Ω < R ≤ 15 Ω	100 μΩ	0.4	0.2	0.12
Note [2]: 50 A Range is optional Accessories

Simulated resistance range(TD1250-30A specification, maximum range: 30 A):500 μΩ~15 Ω.

Simulated resistance range(TD1250-50A specification, maximum range: 50 A):300 μΩ~15 Ω.

Display Digits:6-digit decimal display, set the resistance value through the number keys.
AC frequency: 45 Hz ~ 65 Hz, accuracy: ±0.01 Hz.

6. General Specifications

Power Supply	AC ( 220 ± 22 ) V,( 50 ± 2 ) Hz
Temperature Performance	Working temperature:0°C~45°C; Storage temperature:-20°C~70°C
Humidity Performance	Working humidity:< 80% @ 30°C,< 70% @ 40°C,< 40% @ 50°C Storage humidity:(20%~80%) R·H,non-condensing
Interface	RS232

7. Ordering Information

About the Supplier

This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASI2191183". Items marked "" are certified.

Company Profile

TUNKIA Co., Ltd. is a unique company with top R& D strength in electromagnetics in China. Since its founding in 1998, Changed its name to TUNKIA in 2006. TUNKIA focus on electromagnetic measurement technology, gathered more than 360 personnel all over the world.

At present, Tunkia has launched 32 categories and over 500 advanced electromagnetic measurement equipment, serving over 10, 000 users, and exported to over 20 countries in the world.

Electrical measurement with current from PA to 10kA, voltage from nV to 100kV, resistance from nΩ To TΩ , frequency from DC to 10MHz and accuracy from 10-4 to 10-6. It all have been converted into 22 series electrical testing equipment: Measurement standards, AC & DC instruments, new energy detection, etc.

For magnetic measurement, Tunkia has researched 11 series testing equipment for material and products. We provide comprehensive testing solutions about magnetic intensity, flux, permeability, hysteresis loop, etc.

Tunkia have been highly recognized by the Chinese government and international organizations. Since 2014, we have took part in IEC meetings on behalf of China, participated in the formulation and revision of more than 40 national standards.

Tunkia is striving to become a world-class supplier of electromagnetic measurement equipment.

About Our Factory & Business Background

Business Type: Manufacturer/Factory
Address: No. 16 Panpan Road, Changsha, Hunan, China
Plant Area: 8000 square meters
Number of Employees: 363
Registered Capital: 25,000,000 RMB
Terms of Payment: LC, T/T, D/P, PayPal, Western Union
International Commercial Terms(Incoterms): FOB, CIF, CFR, EXW
Average Lead Time: Peak Season Lead Time: one month
Off Season Lead Time: one month
Nearest Port: Changsha Port

Our Production Capability & Technical Expertise

Main Products: Magnetic Measurement, Electrical Measurement, Gaussmeter, Multifunction Calibrator
Production Machines: SMT Machine, Printing Machine, Assembly & Debugging Line, Automatic Online Function Test (EPS&SST)
ODM Service Available: Yes
OEM Service Available: Yes
R&D Engineers: 120 people
Own Brand: Yes

Our Industry Experience & Global Business Record

Year of Establishment: 2006-06-16
Export Year: 2021-10-11
Main Markets: Europe, Southeast Asia/ Mideast, East Asia(Japan/ South Korea), Domestic
Number of Foreign Trading Staff: 2
Overseas Agent/Branch: No

FAQ

What is the warranty period for the TD1250?: The device comes with a 12-month warranty and lifetime after-sales service.
What accuracy classes are available?: The TD1250 offers accuracy classes of 0.02, 0.05, and 0.1.
Can the device measure harmonics?: Yes, it supports 2nd to 32nd harmonic measurement and displays THD/T and THD/F.
What is the maximum current output?: The standard range is up to 36 A, with an optional 50 A range reaching up to 60 A.
Does it support AC and DC measurements?: Yes, it supports both AC (45-65 Hz) and DC measurement modes with ripple analysis.
How is the resistance value set?: Users can set output values via physical keys or the LCD touch screen.
Is the device customizable?: No, the product is listed as Non-Customized.

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Tunkia Co., Ltd.

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Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester

Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester

Product Highlights

Product Attributes

Find Similar Products

Product Description

1. Summary

2. Features

3. Applications

4. Characteristics

5. Specifications

5.1 DC Current Measurement

5.2 AC Current Measurement

5.3 DC Simulated Resistance

5.4 AC Simulated Resistance

6. General Specifications

7. Ordering Information

About the Supplier

Company Profile

About Our Factory & Business Background

Our Production Capability & Technical Expertise

Our Industry Experience & Global Business Record

FAQ

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Tunkia TD1250 Earth Continuity Testers Calibration Device for Earth Continuty Resistance Tester

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Product Description

1. Summary

2. Features

3. Applications

4. Characteristics

5. Specifications

5.1 DC Current Measurement

5.2 AC Current Measurement

5.3 DC Simulated Resistance

5.4 AC Simulated Resistance

6. General Specifications

7. Ordering Information

About the Supplier

Company Profile

About Our Factory & Business Background

Our Production Capability & Technical Expertise

Our Industry Experience & Global Business Record

FAQ

Send your message to this supplier

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