The Hangzhi HZ903 Precision Current and Voltage Tester is a test instrument that seamlessly integrates high precision, automation, and portability, effectively resolving the critical pain points associated with transmitter calibration:

1. Metrology-Grade Measurement Accuracy (Class 0.01)

The basic error limit for DC voltage and current measurements is a mere ±0.01% of the reading (RD). Its exceptional stability ensures it can serve as a reference standard, meeting the rigorous requirements of both laboratories and third-party metrology institutions.

2. High-Resolution Small Signal Capture

• Voltage Range: 0 to ±10V
• Kisaran Saat Ini: 0 to 20mA
• Resolution: Up to 0.001%, enabling the sensitive capture of even the slightest linear variations in transmitter outputs.

3. Intelligent Automated Operation

Features a built-in automatic range-switching circuit that selects the optimal measurement range without the need for manual intervention. When paired with the standard RS232 interface and accompanying PC software, the device enables automated data processing, storage, and report generation—marking a complete departure from manual record-keeping.

4. Industrial-Grade Portable Design

Weighing in at ≤2kg with a compact form factor (83mm × 133mm × 423.5mm), the unit is ideally suited for both laboratory benchtop applications and on-site use within industrial and mining facilities for in-situ calibration.