Hanna-instruments HI 98703 User Manual download pdf (Page 36)

For field measurements, HI 98703 is powered by 4 AA batteries.

The battery life is enough for 1500 normal measurements.

When the instrument is started, the remaining battery life is

estimated and reported in percents.

To preserve the battery it is better to use normal instead of

averaged measurements.

Continuous measurements keep the lamp on and should be used

with caution if the battery life is an issue.

To further save the battery life, the instrument will turn off after

15 minutes of non-use. The backlight will be turn off after

25 seconds since the last key was pressed.

The battery life is measured each time the lamp is turned on and

if the remaining battery life is less than 10%, the battery tag will

be displayed blinking on the LCD to warn the user that the

batteries need to be replaced.

When the batteries are completely discharged, “0% bAtt” message

will be displayed for one second and the instrument will turn off.

In order to use the instrument again, replace the batteries with

new ones or use an AC adapter.

BATTERIES MANAGEMENT

LAMP REPLACEMENT

The instrument tungsten lamp has a life longer than 100,000 measurements. In case of lamp

failure, the defective lamp can be easily replaced. When the lamp is broken, the instrument displays

“no L” error message.

To replace the lamp follow the next steps:

• Remove the battery lid.

• Unscrew the lamp connection using a screwdriver.

• Unlock the lamp and extract it by pulling it out

from the lamp holder handler.

• Place the new lamp in the right position and push

it until is securely locked.

• Insert the lamp leads into the connector and tight

them using a screwdriver.

Warning: After lamp replacement the meter needs

to be recalibrated.

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Hanna-instruments HI 98703 User Manual Page 36