Hanna Instruments Hearing Aid HI 95771C ユーザーズマニュアル

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DISPLAY ELEMENTS DESCRIPTION
1) four digit main display area.
2) CAL: appears when the instrument operates in the calibration mode.
3) the Month and Day icons appear above the number of month and day when a date is
displayed.
4) the blinking “Battery” icon appears when the battery voltage is getting low.
This prompt appears for 1 second each time the instrument is
turned on.
The parameter code, “771” for chlorine ULTRA HIGH RANGE
or “701” for chlorine LOW RANGE, indicates that the meter is
in a ready state and zeroing can be performed.
Sampling in Progress. This flashing prompt appears each time
the meter is performing a measurement.
This indicates that the meter is in a zeroed state and
measurement can be performed.
Light over range: the cuvet is not inserted correctly and an
excess ambient light is reaching the detector. If the cover is
properly installed, then contact your dealer or the nearest
Hanna Customer Service Center.
GUIDE TO DISPLAY CODES
16
MEASUREMENT PROCEDURE
• Select the parameter code “701” for Chlorine
LOW RANGE by holding ZERO/SET (see
page 13).
• When the LCD displays “701”, it is ready.
• Fill the cuvet with 10 mL of unreacted sample,
up to the mark, and replace the cap.
• Place the cuvet into the holder and ensure
that the notch on the cap is positioned
securely into the groove.
• Press ZERO/SET and “SIP” will blink on the
display.
• After a few seconds the display will show
“-0.0-”. The meter is now zeroed and ready for
measurement.
• Remove the cuvet from the instrument. Remove
the cap.
• Add the content of one packet of HI 93701-0
Free Chlorine reagent. Replace the cap and
shake gently for 20 seconds.
• Replace the cuvet into the holder and ensure
that the notch on the cap is positioned
securely into the groove.
Warning
Warning
Warning
Warning
Warning: if the Chlorine Low Range reagent is added to a sample with high chlorine
concentration, the color formed can be rapidly bleached, resulting erroneous low readings.
MEASUREMENT PROCEDURE FOR 701