TH0780 Multiplexing V/V Selection Units

Model: TH0780
Brand: TUNKIA

Product Description

TH0780 Multiplexing V/V Selection Units

1. Summary

TH0780 is a high-precision power frequency voltage converter with built-in multi-position precision voltage transformers, which can convert large power frequency voltages into 1V output, and realize precise measurement of power frequency voltage or traceable calibration of voltage sources.

2. Feature

• U1 Nominal Input: 60 V ~ 480 V

• U2 Nominal Output: 1V

• Working Frequency: 45 Hz ~ 65 Hz

• Ratio Typical Uncertainty: 5 ppm

• Select different ratios by touch on the LCD screen.

• The voltage output can be turned off or on with one key.

3. Application

• Power Frequency Voltage Precision Measurement

• Power Frequency Voltage Standard Source Traceability

☆ Power Frequency Voltage Precision Measurement

• Combined with a precision voltmeter (such as TH0190) to build a precision current measurement system.

• Measure power frequency voltage or calibrate power frequency voltage source.

☆ Power Frequency Voltage Standard Source Traceability

• The secondary voltage output by TH0780 is compared with the AC voltage reference through the zero voltage meter.

• The ultra-high calibration uncertainty realizes the precise traceability of the power frequency voltage standard source.

Specification

4. Specification

Primary Nominal Input Voltage	Secondary Nominal Output Voltage	Ratio Typical Uncertainty(k=2)
60 V	1 V	5 ppm
120 V	1 V	5 ppm
240 V	1 V	5 ppm
480 V	1 V	5 ppm

5. General Specifications

Power Supply	AC ( 220 ± 22 ) V，( 50 ± 2 ) Hz
Working Environment	0 °C ~ 40 °C，20% R·H ~ 80% R·H，No condensation.
Storage Environment	-10 °C ~ 50 °C，10% R·H ~ 90% R·H，No condensation.
Dimensions	483 mm (W) × 400 mm (D) × 177.8 mm (H)（without handle）
Weight	About 23.5 kg
Communication Interface	RS232×1、USB×1、LAN×1

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