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TD1850 Multifunction Calibrator for 3.5-digit Digital Multimeter with Outstanding Functionality
US$1,000.00-10,000.00
1 Piece
Product profile
Customization
AvailableAfter-sales Service
Life TimeWarranty
12 Months Excellent After-sales ServiceModel NO.
TD1850Application
Electromagnetic Instrument, Electrical CalibrationPower
ElectricityVoltage Output
Max. 1100VCurrent Output
Max. 22ALCD Display
With LCD DisplayCustomized
Non-CustomizedAccuracy
Class 0.05 / Accuracy 5%DC voltage output
20 mV ~ 1100 VDC current output
2 uA ~ 22 A(33 A is optional)AC voltage output
20 mV ~ 1100 VAC current output
200 uA ~ 22 A(33 A is optional)Sinusoidal wave frequency
45 Hz ~ 1100 HzSimulated DC resistance
10 ohm ~ 220 Mega ohmTransport Package
Package for ExportingSpecification
475 mm(W) * 400 mm (D) * 190 mm (H), 18KgTrademark
TUNKIAOrigin
ChinaProduction Capacity
1000Key features
High Precision Accuracy: Class 0.05 accuracy ensures reliable calibration for 3.5-digit multimeters and electrical instruments.
Wide Output Range: DC Voltage 20mV-1100V, AC Voltage 20mV-1100V, Current up to 22A (33A optional), Frequency 45Hz-1100Hz.
Multifunction Calibration: Integrates AC/DC voltage, current, resistance, and frequency sources for comprehensive instrument testing.
LCD Touch Interface: Features an LCD touch screen for direct value setting and remote coarse/fine adjustment capabilities.
Optional Clamp Meter Calibration: Supports clamp meter calibration with equivalent 1000AT current through a 50T coil input.
Transducer Calibration Support: Optional DC small-signal measurement for calibrating proportional errors in AC/DC voltage and current transducers.
Comprehensive Protections: Equipped with short-circuit, open-circuit, and overload protection for both voltage and current sources.
Remote Control Capability: Includes RS232 communication interface and optional remote box for remote adjustment and control.
Company profile

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2021-10-11 CertifiedNearest Port: Changsha PortAverage Response Time: ≤7.83h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryTunkia Co., Ltd. is identified as a China-based manufacturer established in 2006, with 363 employees and an 8,000 m² manufacturing plant. Its stated products include magnetic and electrical measurement equipment, gaussmeters, and multifunction calibrators. The supplier reports ISO9001, ISO14001, and ISO45001 certifications, nine production lines, 120 years of combined R&D engineer experience, and 11–20 quality-control staff. It serves domestic and overseas markets, with exports representing 21%–30% of sales and reported one-month lead times in both off-peak and peak seasons. Evidence supports manufacturing scale, certification coverage, and technical capability. However, the provided information does not sufficiently establish after-sales service, financial credibility, customization capability, or a broad customer track record.
Supplier typeThe supplier is explicitly classified as a manufacturer, while the associated company information also describes the company nature as a trading company. Its 8,000 m² plant and manufacturing-related business activities support that it operates manufacturing capabilities, although the supplied classifications are not fully consistent.
CertificationsThe supplier reports ISO9001:2015, ISO14001:2015, and ISO45001:2016 management-system certificates, plus other unspecified certifications. This is explicit evidence of multiple quality, environmental, and occupational-health-and-safety certifications.
R&D capabilityThe supplier’s product scope includes magnetic measurement, electrical measurement, gaussmeters, and multifunction calibrators, and it reports 120 years of total R&D engineer experience. These details support technical and product-development capability, although no patent, new-product, or R&D investment data is provided.
Production capacityThe supplier reports an 8,000 m² manufacturing plant, 363 employees, nine production lines, and one-month lead times in both off-peak and peak seasons. These figures provide explicit evidence of established production capacity and stated delivery capability.
Product Q&A
Q:What is the accuracy class of the TD1850?
A:
The TD1850 features a high accuracy class of 0.05, suitable for calibrating 3.5-digit multimeters and other electrical instruments.
Q:What are the maximum output ranges for voltage and current?
A:
The device supports DC/AC voltage output up to 1100V and current output up to 22A, with an optional 33A range available.
Q:Can this calibrator be used for clamp meter calibration?
A:
Yes, it offers an optional function to calibrate DC clamp meters by simulating 1000AT current through a 50T coil input.
Q:Does the TD1850 support remote adjustment?
A:
Yes, it includes an RS232 interface and an optional remote box for coarse and fine adjustment of voltage or current.
Q:What is the warranty period for this product?
A:
The product comes with a 12-month warranty and offers lifetime after-sales service support.
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Tunkia Co., Ltd.
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