Hanna-instruments HI 504903 Uživatelský manuál stáhnout pdf (Strana 25)

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• green LED blinking & red LED on, battery test failed

and SMS sending enabled

• green LED on & red LED blinking, battery test failed

and SMS sending disabled

• green & red LEDs blinking, cellular error is active

• green & red LEDs on, EEPROM data corruption

DIGITAL OUTPUT STATUS LED

This yellow LED keeps indication about digital output contact

status (if software enabled).

• LED off, digital output contact open

• LED on, digital output contact close

CELLULAR SIGNAL LEDs

These green LEDs keep indication about signal strength for

cellular phone module.

• Cell signal #1 & Cell signal #2 LEDs off, no signal

or cellular error found or power failure status

• Cell signal #1 LED on & Cell signal #2 LED off,

medium signal condition

• Cell signal #1 & Cell signal #2 LEDs on, strong

signal condition

CELLULAR STATUS LED

When available, this yellow LED displays the operating status

of the cellular phone terminal.

• LED off, cellular engine off

• LED on, cellular engine on but not registered to the network

• LED blinking (slow), cellular engine on and registered to

the network

• LED blinking (fast), cellular engine registered to the net-

work and a call is in progress

LED INDICATORS

Find here below a brief explanation of all possible LEDs indi-

cations of HI504903 interface.

RS485 PORT LED

This red LED keeps indication about devices connected to the

RS485 port.

• LED off

• in idle state: no instrument is configured or no alarm is on

• during PC communication session: not yet channel selec-

tion made by remote PC

• LED on, in idle state: at least one instrument is configured

and at least one alarm is on

• LED blinking, during PC communication session: a com-

munication is in progress between remote PC and one (or

more) of RS485 instruments

DIGITAL INPUT PORT LED

This red LED keeps indication about digital input status (if soft-

ware enabled) depending on last interface configuration setting.

• LED off

• in idle state: digital input not configured or digital contact

close (if configured to be on when contact is open) or

contact open (if configured to be on when contact is close)

• during PC communication session: when a call is in

progress with any instrument

• LED on, in idle state: digital input configured and close (if

configured to be on when contact is close) or contact open (if

configured to be on when contact is open)

SMS ENABLE/DISABLE LEDs

These two LEDs keep indication about SMS sending enable/

disable status and are used on fault interface related condition

to provide to the user a “visual” indication of actual problem.

• green LED on & red LED off, in idle state: SMS sending

enabled

• green LED off & red LED on during interface start-up

procedure or in idle state if SMS sending is disabled

• green LED blinking & red LED off, in power failure

status: SMS sending enabled

• green LED off & red LED blinking, in power failure

status: SMS sending disabled

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