Myron L 9PTK - Manual (Page 12)

8
iii. rUles of OPeratiOn
A. Operation
nOte: The cell extender does not interfere with normal operation.
Using the instrument is simple:
• Individual or multiple parameter readings may be obtained by
filling individual sensors or entire cell cup area.
• Rinse the conductivity cell and/or pH/ORP sensor well with test
solution 3 times and refill. Temperature and/or measurement
extremes will require additional rinses for maximum accuracy.
• Press the desired measurement key to start measurement.
• For titrations, user intuitive display prompts guide you through
the addition of reagents and measurements.
• Pressing any parameter key again in measurements restarts
the 15 second “auto off” timer. Pressing any parameter key
again during titrations will cancel the titration in progress.
• Note the value displayed and/or press the ms key to store the
reading (ref. Memory Storage, pg. 37). It’s that simple!
B. Characteristics of the Keys
• Though your Ultrameter III has a variety of sophisticated
options, it is designed to provide quick, easy, accurate
measurements by simply pressing a key.
• All functions are performed one key at a time.
• THERE IS NO “OFF” KEY. If the instrument remains inactive
for 15 seconds after you press any parameter key (user
adjustable up to 75 seconds), the instrument turns itself off.
The instrument turns itself off after 60 seconds of inactivity in
CAL mode, 3 minutes of inactivity in each titration screen and
60 seconds of inactivity in each LSI calculator value screen.
• Rarely is it necessary to press and hold a key (as in Procedure
to Select a Solution, pg. 23; Conductivity or TDS Calibration,
pg. 27; and ORP Mode Selection, pg. 21).
C. Operation of the Keys (See Instrument Illustration, pg. ii)
1. Measurement Keys in general
Any of the 8 measurement keys turns on the instrument in the mode
selected. The mode is shown at the bottom of the display for COND,
RES, TDS, ORP and pH. The ORP mode is indicated by the units
displayed, mV for ORP or ppm for free chlorine. Measurement units
appear at the right. Pressing any measurement key puts the unit in that
measurement mode even if you are in a calibration sequence and also
serves to cancel a change (ref. Leaving Calibration, pg. 27).