女孩子英文名Contents Page Safety Terms and Symbols (1)
Introduction (4)
Preliminary Notes (5)
Panel Description (6)
Operation Method (10)
Specifications (13)
Maintenance (16)
Cleaning (16)
Troubleshooting (16)
Interchangeable Parts (17)episteme
SAFETY TERMS AND SYMBOLS
The 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疏导的疏什么意思
practices that could result in damage to this product or other property.
correctionsThe following symbols may appear in this manual or on the product:
DANGER High Voltage
施工企业管理制度>mrdATTENTION refer to Manual
Protective Conductor Terminal
(Ground) Earth Terminal
emmental
FOR UNITED KINGDOM ONLY
NOTE: This lead/appliance must only be wired by
competent persons
WARNING: THIS APPLIANCE MUST BE EARTHED IMPORTANT: The wires in this lead are coloured in
accordance with the following code:
Blue: Neutral
Brown: Live (Pha)
As the colours of the wires in main leads may not correspond
with the colours marking identified in your plug/appliance,
proceed as follows:
foreign
The wire which is coloured Green & Yellow must be connected to
The wire which is coloured Blue must be connected to the terminal which is marked with the letter N or coloured Blue or Black.
The wire which is coloured Brown must be connected to the terminal marked with the letter L or P or coloured Brown or Red. If in doubt, consult the instructions provided with the equipment or contact the supplier.
This cable/appliance should be protected by a suitably rated and approved HBC mains fu : refer to the rating information on
the equipment and/or ur instructions for details. As a guide,
cable
of 0.75mm²should be protected by a 3A or 5A fu. Larger conductors would normally require 13A types, depending on the connection method ud.
Any moulded mains connector that requires removal /replace- ment must be destroyed by removal of any fu & fu carrier and dispod of immediately, as a plug with bared wires is hazardous if a engaged in live socket. Any re-wiring must be carried out in accordance with the information detailed on this label.
Introduction
GVT-427B is versatile AC voltmeter which is able to measure AC voltage from ranges of 10 Hz to 1 MHz with full scale ranges from 300 μV to 100 V. The dB scale measures 1V as 0dB and ranges from -90 dB to +41 dB. The 600 Ω (1mW) dBm scale ranges from -90 dBm to +43 dBm.
The scales on the meter are graduated up to 1.1 (for +1dB) and the extended scales are especially uful when measuring the characteristics of audio amplifiers. In addition, both instruments can give AC voltage output of approximately 0.1V in full scale from the output terminals, and the measurements can therefore be monitored. GVT-427B is a two channels voltmeter with isolated output for each channel which enables it to be ud as a two channels preamplifier.rtw
互质数的概念
