User Guide

90
Manganese HR
Wait for a few seconds and the display will
show “-0.0-”. Now the meter is zeroed
and ready for measurement.
Remove the cuvet.
Add the content of one packet of
HI 93709A Citrate reagent. Re-
place the cap and shake gently
until dissolution is complete.
Add the content of one packet of
HI 93709B Sodium Periodate re-
agent. Replace the cap and shake
gently until dissolution is com-
plete.
Reinsert the cuvet into the instrument.
Press TIMER and the display will show the countdown prior to the
measurement or, alternatively, wait for 1 minute and 30 seconds
and press READ DIRECT. In both cases “SIP” will blink during
measurement.
The instrument directly displays concentration in mg/L of manganese
on the Liquid Crystal Display.
INTERFERENCES
Interference may be caused by:
Calcium above 700 mg/L
Chloride above 70000 mg/L
Iron above 5 mg/L
Magnesium above 100000 mg/L.