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GVT-427B User Manual
Contents
Safety Terms and Symbols............................ 1
Introduction.............................................. 4
Preliminary Notes....................................... 5
Panel Description........................................ 6
Operation Method....................................... 10
Specifications..........................................
...
Maintenance.............................................. 16
Cleaning.............................................
.
Troubleshooting....................................
.
Interchangeable Parts.................................. 17
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com
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GVT-427B User Manual
SAFETY TERMS AND SYMBOLS
These terms may appear in this manual or on the product:
WARNING. Warning statements identify condition or
practices that could result in injury or loss of life.
CAUTION. Caution statements identify conditions or
practices that could result in damage to this product or
other property.
The following symbols may appear in this manual or on the
product:
DANGER High Voltage
ATTENTION refer to Manual
Protective Conductor Terminal
(Ground) Earth Terminal
1

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Summary of Contents for Test Equipment Depot GVT-427B

  • Page 1: Table Of Contents

    GVT-427B User Manual GVT-427B User Manual Contents Page SAFETY TERMS AND SYMBOLS Safety Terms and Symbols………………………. 1 These terms may appear in this manual or on the product: Introduction………………………………………. 4 Preliminary Notes………………………………… 5 WARNING. Warning statements identify condition or practices that could result in injury or loss of life.
  • Page 2 GVT-427B User Manual GVT-427B User Manual FOR UNITED KINGDOM ONLY of 0.75mm² should be protected by a 3A or 5A fuse. Larger conductors would normally require 13A types, depending on the connection method used. NOTE: This lead/appliance must only be wired by...
  • Page 3: Introduction

    GVT-427B User Manual Introduction Preliminary Notes GVT-427B is versatile AC voltmeter which is able to measure AC Chassis grounding terminal: voltage from ranges of 10 Hz to 1 MHz with full scale ranges from Make sure the chassis ground terminal is connected to the earth 300 µV to 100 V.
  • Page 4: Panel Description

    Provide easy readings for both voltage and dB scales. For When the range selector switch is setting at 100 mV, the output GVT-427B, the black pointer is CH 1 and the red one is CH 2. voltage will be approximately equal to the input voltage.
  • Page 5 GVT-427B User Manual GVT-427B User Manual...
  • Page 6: Operation Method

    GVT-427B User Manual GVT-427B User Manual Operation Method Decibel is originally the ratio of power as explained above. However, the logarithm of the ratio of other values (ratio of voltage or current) can also been called “decibel”. A. Voltage measurement For example, If the input voltage of an amplifier is 10 mV and Turn off the power.
  • Page 7: Specifications

    GVT-427B User Manual GVT-427B User Manual The dB and dBm scales of the indicating meter are as Specifications stated the following: This section contains a table of GVT-427B characteristics. Range setting Table 1: Specifications + 41 Model GVT-427B Specification Channels...
  • Page 8 GVT-427B User Manual GVT-427B User Manual Table 1: Specifications (Cont.) AC Power 115/230 Vac, 50/60 Hz Requirement 300uV range: Frequency Response From 20 Hz to 200 kHz, ≦ ±3% Table 1: Specifications (Cont.) (Reference : 1 kHz) From 10 Hz to 500kHz, ≦ ±10%...
  • Page 9: Maintenance

    Accessories The items are shipped with the GVT-427B as following: To clear GVT-427B, use soft cloth dampened in a solution of mild detergent and water. Do not spray cleaner directly onto the instrument, since it may leak into the cabinet and cause damage.

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