The service manual for the Rohde & Schwarz HF-DC Millivoltmeter URV covers the setup, operation, and troubleshooting of the device, including detailed instructions for preparing the device for use, checking and adjusting the mechanical and electrical zero points, and connecting additional equipment. It also provides guidance on maintenance tasks such as replacing batteries and diodes, as well as performing calibration and frequency response measurements to ensure proper device functionality.
Manual Overview
The Rohde & Schwarz URV HF-DC Millivoltmeter service manual provides detailed instructions for operation, troubleshooting, and maintenance. The manual emphasizes the importance of proper calibration and adjustment procedures for both AC and DC voltage measurements. It includes a comprehensive troubleshooting guide to diagnose and resolve common issues, focusing on error codes and diagnostics. Technicians are advised to check the mechanical and electrical zero points as part of the calibration process. The manual also provides board-level guidance, detailing the replacement of components such as diodes in the probe and through-head, and battery replacement. For calibration, absolute value calibration for DC and AC measurements, as well as frequency response testing of the probe and through-head, are covered. The manual underscores the importance of using the correct measuring devices and tools for maintenance tasks. Additionally, it includes block diagrams for AC and DC measurement processes, aiding in understanding the device’s function and facilitating effective troubleshooting and repairs.
Quick Issues Covered
- Diagnose and adjust mechanical and electrical zero points.
- Calibrate absolute value for AC and DC measurements.
- Replace diodes in probe and through-head for maintenance.
Overview
The HF-DC-Millivoltmeter URV is a versatile and sensitive measuring device for both DC and AC voltages within a frequency range of 1 kHz to 1.6 GHz. It features a high-frequency probe with interchangeable dividers and through adapters, allowing for a wide range of measurement possibilities and adaptability to various measurement problems within the specified frequency range. The voltage measurement range for DC is from 50 µV to 1000 V (up to 30 kV with a high-voltage probe), and for AC, it is from 0.5 mV to 10 V with the probe and through adapter, extendable to 1000 V with additional dividers. The device includes a moving coil instrument with a 105° mirror scale and linear scale division for all measurement ranges, featuring scales from 0 to 10.5 and 0 to 3.2, along with a dB scale. It also has a DC output, making it suitable as a preamplifier and AC-DC converter for DC recorders and digital voltmeters. The device is powered by dry batteries, making it independent of the mains and suitable for mobile use and measurements.
Specifications
- Frequenzbereich: 1 kHz bis 1,6 GHz
- Spannungsbereich für Gleichspannung: 50 µV bis 1000 V
- Spannungsbereich für Wechselspannung: 0,5 mV bis 10 V
- Spannungsbereiche: 3 mV, 10 mV, 30 mV, 100 mV, 300 mV, 1 V, 3 V, 10 V, 30 V, 100 V, 300 V, 1000 V
- Skalenteilung: 0 bis 10,5 und 0 bis 3,2
- Zusätzliche dB-Skala
- Gleichspannungsausgang
- Betriebsspannungsversorgung: Trockenbatterien
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
Refer to the PDF for details.
Operation
Refer to the PDF for details.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
Refer to the PDF for details.
Download ENGLISH Service manual (PDF – 14.5 MB)
Rohde & Schwarz URV HF DC Millivoltmeter manual aids in troubleshooting and calibrating the device. English version. PDF size: 14.5 MB.
- Brand: Rohde-schwarz-urv-hf-dc-millivoltmeter-operation-service-manual-german
- Model: ENGLISH
- Type: Service manual
- File size: 14.5 MB
Overview
Brief overview of the product.
Specifications
- Key spec 1
- Key spec 2
Controls & Indicators
Control panel/button layout.
Installation / Setup
- Step 1…
- Step 2…
Operation
Basic usage, modes, cycles.
Troubleshooting & Error Codes
| Issue / Code | Fix |
|---|---|
| Example | How to fix… |
Safety & Warnings
- Important warning…
Downloads
Download ENGLISH service manual (PDF)
Rohde & Schwarz URV HF DC Millivoltmeter - Overview
The Rohde & Schwarz URV HF DC Millivoltmeter is a precision instrument designed for accurate measurement of low-level voltages in the millivolt range. It is widely used in electronic laboratories and industrial environments for testing, calibration, and troubleshooting of high-frequency and DC circuits. This device provides reliable voltage readings with high sensitivity and stability, making it essential for professionals requiring exact voltage measurements.
Main Features and Specifications
- Measurement Range: Millivolt to high-frequency DC voltages
- High input impedance for minimal circuit loading
- Wide frequency response suitable for HF applications
- Clear analog/digital display for precise readings
- Robust construction for reliable operation in industrial settings
- Calibration and adjustment controls for enhanced accuracy
- Compact and portable design for ease of use
Basic Usage and Operation Tips
Before taking measurements, ensure the device is properly calibrated according to the manual instructions. Connect the test leads securely to the circuit points where voltage measurement is required. Use the appropriate range setting to avoid overloading the input. Allow the instrument to warm up for a few minutes to stabilize readings. Always observe polarity when measuring DC voltages to prevent damage or incorrect readings.
Troubleshooting and Maintenance
If the device shows erratic readings or fails to power on, first check the power supply and fuse condition. Inspect test leads and connectors for damage or wear. Regularly clean the instrument’s exterior and connectors with a dry cloth to prevent dust accumulation. Calibration should be performed periodically to maintain measurement accuracy. Refer to the service manual for detailed troubleshooting procedures and parts replacement guidelines.
Safety Reminder
Always follow standard electrical safety practices when operating the millivoltmeter. Avoid measuring voltages beyond the specified limits to prevent electric shock or instrument damage. Disconnect the device from the circuit before performing maintenance or calibration. Use insulated tools and wear appropriate personal protective equipment when working with live circuits.