Key Features:
Input Voltage Ranges: From 0.333V to 600V (AC or DC).
Fast Response: Less than 200uS response time (without filtering).
True RMS Conversion: VTHR models provide true RMS measurement up to 10kHz.
Outputs: Available as 10V, 4-20mA, and 4-12-20mA.
Auxiliary Power Input:
12/24/48/110/230 VDC or VAC, with a maximum current draw of 100mA.
High Accuracy: Certified accuracy better than 0.25% at +23°C ±5°C, traceable to NIST/NPL.
Interfaces: RS485 and Modbus interfaces available, transmitting values such as Vrms, Vrmsmax, Vmean, Vpk, Vpkmax, Vcf, and frequency.
Isolation: Galvanic isolation with 1.5kV working voltage, tested up to 2.5kV for 1 minute.
Working Temperature Range:
Operational: -10°C to 50°C.
Functional: -20°C to 70°C.
Mounting Options: DIN rail or screw fixing.
Safety and Installation Guidelines:
Ensure personnel are trained and familiar with electric shock and fire hazards associated with electrical systems.
Always isolate the test circuit before connecting the VTH transducers.
Use safety-rated cables for connection, with insulated connections to prevent accidental contact.
Verify that the VTH output is properly grounded.
Do not exceed the maximum differential input voltage of 1000V peak.
The use of overcurrent protection is advised during testing.
Avoid mechanical stress on probe terminals during installation.
Ensure clean, dry operating conditions to prevent risks of explosion or environmental damage.
Applications:
DC Drives: Voltage monitoring for safe and efficient operation.
Process Control: Measurement and monitoring in various control systems.
Rail Transportation: Monitoring of voltage in traction and auxiliary systems.
Circuit Breaker Trip Coils: Accurate voltage measurement to ensure proper circuit operation.
Energy Management Systems: Used for monitoring voltage in switchboards, generators, and telemetry control.
Product Specifications:
Voltage Input Range: 0.333V to 600V (AC or DC).
Outputs:
0-10V, 4-20mA, or 4-12-20mA.
Power Input Options:
12/24/48/110/230 VDC or VAC.
Accuracy: Better than 0.25%, traceable to NIST/NPL.
Frequency Range:
Standard: DC-10kHz.
Isolation:
Working voltage: 1.5kV, tested at 2.5kV for 1 minute.
Interfaces:
RS485 and Modbus available for transmitting detailed voltage data.
Certifications:
CE Marked, UL94V0, IEC/EN61010 Cat II, IEC348, DIN 57411.
Enclosure Rating:
IP50 (case), IP30 (terminals), complies with IEC529.
Warranty:
1-year warranty on all VTH and VTHR models.
The VTH and VTHR voltage transducers are highly reliable and accurate for converting DC and AC voltages into isolated outputs. With a broad range of input options, these transducers can be used in various industries such as energy management, process control, and rail transportation. Built with safety and performance in mind, they offer excellent accuracy, fast response, and comprehensive protection features.