Simpson 270-5, Инструкция по эксплуатации

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**Responds to the average value of an AC current, and is calibrated to indicate
the RMS value of a pure sine wave.
***Per ANSI C39.5 April 1974: “The maximum voltage, with respect to Ground,
which may safely and continuously be applied to the circuit of an Instrument.”
1.9 Definition of Accuracy
The voltage and current accuracy of this Instrument is commonly expressed as a
percent of full scale. This should not be confused with accuracy of reading (indi-
cation). For example, +2% of full scale on the 10 volt range allows an error of
±0.20V at any point on the dial. This means that at full scale, the accuracy of
reading would be ±2%, but at half scale it would be ±4%. Therefore, it is advan-
tageous to select a range which gives an indication as near as possible to full
scale.
1.10 Safety Considerations
This Operator’s Manual contains special caution and warning symbols which
alert the user to hazardous operating and servicing conditions. These symbols
appear throughout this publication, where applicable, and are defined on the
inside front cover of this manual under NOTES AND SAFETY INFORMATION.
These instructions must be adhered to in order to ensure the safety of operating
and servicing personnel and to retain the operating conditions of the Instrument.
Table 1-2. Items and Accessories Furnished with this Instrument
Quantity Description Number
1 Test Lead Set, one red and one
black (48” long) each with combination
probe tip and removable rubber-sleeved
alligator clip.
00043
*1 1.5 volt, D cell, NEDA 13 F
*1 9.0 volt Cell, NEDA 1604
2 1 Amp, 250 V Fuse, Littlefuse Type #312001
1 2 Amp Fuse, 600 V (Bussman Type BBS or
Littlefuse Type BLS)
1 Operator’s Manual 6-111642
*Batteries are standard items replaceable from local retail stores.
Table 1-3. Additional Accessories
r e b m u N g o l a t a C n o i t p i r c s e D
5 4 5 0 0 p m a l C - p m A 2 - 0 5 1 l e d o M