Introduction; Getting Started; Initial Inspection; Battery Installation - YSI Professional Plus User Manual

* the warranty period for the non-field rugged cables (605107, 605177, 605108,
605178, 605109, 605179) is listed as 6 months. However, the true "working life" of
these sensors may be 3-9 months depending on storage and usage in solutions other
than clean aqueous samples.
** the warranty for the ammonium, nitrate, and chloride sensors (605104, 605105,
605106) is listed as 6 months. However, the true "working life" of these sensors may
be 3-9 months depending on storage and usage in solutions other than clean aqueous
samples.
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I N t R o D U C t I o N
thank you for purchasing the YSI Professional Plus (Pro Plus). the Pro Plus
features a waterproof (IP-67) case, backlit display and keypad, user-selectable
cable options, USB connectivity, large memory with extensive site list capabilities,
and a rugged, rubber over-molded case.
Reading the entire manual before use is recommended for an overall
understanding of the instrument's features.
G E t t I N G S t A R t E D

InItIal InspectIon

Carefully unpack the instrument and accessories and inspect for damage.
Compare received parts with items on the packing list. If any parts or materials
are damaged, contact YSI Customer Service at 800-897-4151 (+1 937 767-7241)
or the authorized YSI distributor from whom the instrument was purchased.

Battery InstallatIon

the Pro Plus requires (2) alkaline C-cell batteries which are included with the
purchase of a new instrument. Battery life depends on parameters and usage.
Under normal conditions, battery life is approximately 80 hours for continuous
use at room temperature. to install or replace the batteries:
1. turn the instrument over to view the battery cover on the back.
2. Unscrew the four captive battery cover screws.
3. Remove the battery cover and install the new batteries, ensuring correct
polarity alignment on the instrument or the removed cover. (Figure 1)
4. Replace the battery cover on the back of the instrument and tighten the four
screws. Do Not over-tighten.
Figure 1. Pro Plus with battery cover removed. Notice
battery symbols indicating polarities.
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