Kyoritsu 4140 User Manual download pdf (Page 13)

6. Preparation for Measurement

CheckofBatteryvoltage

(1)See“12.Batteryreplacement”andinstallbatteriesinKEW4140.

(2)PressthePowerswitchonKEW4140foratleast1sectopower

on the instrument.

*Powerswitchisactivatedonlywhentheswitchispressedfor1

sec or more.

Presstheswitchforatleast1sectopowerofftheinstrument.

(3)Power on KEW4140 and check the Battery symbol displayed

at the upper left on the LCD. When the displayed batterylevel

is lowest (

), the installed batteries will be exhausted soon.

Replacethebatterieswithreferenceto“12.Batteryreplacement”

to continue further tests.

When the Battery symbol is empty (

), battery level is

lower than the lower limit of the working voltage. In this case,

accuracies of the measured values aren’t assured. Replace the

batteries with new ones.

The empty Battery symbol (

) is displayed and warning

buzzer sounds for 2 sec when powering on the instrument with

exhausted batteries.

Batteries to be used

Use of alkaline batteries is recommended. Battery level may not

be recognized properly when alkaline batteries aren’t used.

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Kyoritsu 4140 User Manual Page 13