Справочник Пользователя для Hanna Instruments c 214

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POWER CONNECTION
Plug the 12VDC adapter (
HI 710005 - 110VDC, or HI 710006 -
220VDC) into the DC socket. Plug the adapter into the outlet.
Alternatively, remove the battery cover on the back of the meter;
attach 2 fresh 9V batteries and replace the cover.
Note: Insure the main line is surge protected.
Note: Always turn the meter off before unplugging it to insure no data
is lost.
MEASUREMENT PROCEDURE
• Turn the meter on by pressing ON/OFF.
• The meter will first perform an LCD auto
diagnostic test by displaying a full set of
figures.
• Then it will show a scrolling
"c 214 Hanna Inst" message.
• When the LCD displays “----”, the meter
is ready. On the secondary LCD "P1" will
appear to inform that the first parameter
measurement procedure (Ammonia LR)
can be performed.
• Press the PROGRAM t and PROGRAM s keys to select the
desired parameter.
For the program number, see the parameters reference table on
page 17 or look at the list printed on the mask of the meter.
OPERATIONAL GUIDE
61
• Mark the vial with a pencil on the
white band to place an orientation
sign. Use this sign to insert the test
vial always in the same position into
the holder.
• Place the vial into the holder and
push it completely down.
• Press ZERO and “SIP” will blink on the display.
• Wait for a few seconds and the
display will show “-0.0-”. Now the
meter is zeroed and ready for
measurement.
• Remove the vial.
• Remove the cap and add the content
of one packet of HI 93758-0
Phosphorus Reagent.
• Replace the cap tightly and shake
gently to mix for 2 minutes until
most of the powder is dissolved. This
is the reacted sample.
• Place the vial into the holder and
push it completely down. Ensure that
the vial orientation respect to the
holder is the same of the blank.
• Press TIMER and the display will show the countdown prior to the
measurement. Alternatively, wait for 3 minutes and press READ
DIRECT. In both cases "SIP" will blink during measurement.
Phosphorus, Acid Hydrolyzable