Hach Ultra MET ONE 227, User Manual

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18
Operation
Temp = Changes temperature readout from °F to °C.
RS232 Mode = Print a Record
When the printer is connected, results are printed at the end of each
count cycle.
RS232 Mode = Print Buffer
When the printer is connected, the printer prints count data for all
count cycles stored in buffer.
RS232 Mode = Normal Printer is disabled; RS232 (computer control) is enabled.
Buffer Cnt Number of count cycles presently stored in the buffer.
Baud Rate Select from 300, 1200, 2400 or 9600.
Date Present date
Time Present time of day (24-hour clock format)
Period Sample time for each count cycle (up to 24 hours)
Hold Time between count cycles (up to 24 hours)
Program Mode Is Unlocked (or Locked)
The counter can be locked so that the program settings cannot be
changed.
<Sensor Fail!> When flashing, indicates a sensor problem.
<Count Alarm!>
When flashing and beeping, indicates that the programmed count
alarm limit has been exceeded.
<Low Battery!> When flashing, indicates battery needs recharging.
(Program Mode)
Indicates that the user has entered the mode for changing
parameters or limits of the display, serial I/O or clock functions.
RUN Begins the count cycle.
STOP Stops the count cycle before completion; data is not saved.
DSP Top menu name (Display) for all display parameters.
SIO
Top menu item (Serial Input/Output) for all serial
interface parameters.
CLK Top menu name (Clock) for all clock parameters.
PROG Allows user to change parameters or limits.
NXT Moves to the next function within the top menu.
BAK Moves to the previous function within the top menu.
RET Returns to the main screen.
INC
Either moves to the next mode selection or increments (increases)
the number settings.
DEC
Either moves to the previous mode selection or decrements
(decreases) the number settings.
→ Advances to the next set of digits to be changed.
ZERO Sets buffer count to zero (clears buffer of all count cycle data).
Table 2 MET ONE 227 particle counter function descriptions (continued)
Function Description