Mustek PP3000 Bedienungsanleitung PDF herunterladen (Seite 62)

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PST-7000 series user’s manual – BRIEF INTRODUCTION

LED INDICATORS

Besides the LED on MSR unit there are another two LED’s on the main unit

below the 6-position electronic key on the programmable keyboard (ref. Fig. 4-8). The

right hand green LED, called as the power LED, and the left hand orange LED, called

as the Standby LED, together exhibit several different system status depending on

whether or not an UPS battery is fitted.

(a) Without an UPS battery the power LED lights to show that the system is turned

ON under presence of AC power. The standby LED indicates that AC power is

available when the system is powered off.

(b) With a UPS battery fitted:

1. The standby LED gives a steady illumination to indicate the presence of

AC power when the system is powered off. The system cannot be turned

on if the AC power fails, even when the battery is fully charged. The

power LED goes ON and the standby LED goes OFF when the system is

powered up.

2. During periods of AC power failure with the system turned on, the power

LED flashes to indicate that the system is running on battery power.

3. The power LED is turned OFF and the standby LED flashes rather fast as

the UPS battery approaches a discharged condition to remind the operator

that power will soon finish. In few seconds, the whole system will soon be

automatically turned off and both LED will be OFF.

4. In case the AC power resumes during the usage of the battery, the flashing

LED will keep on flashing for few seconds till the AC supply is

considered stable.

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Mustek PP3000 Bedienungsanleitung Seite 62