Hach POLYMETRON 8811 Manuel D'utilisation De Base page 18

* All these alarms are immediately and automatically followed by the 8811 with a switch to the next
channel in the programmed sequence (IMPORTANT: This functionality is not available if coupled
with an 8810-ISE analyzer).
Data sent by the sequencer
The sequencer sends the following data:
• ?=: to configure the analyzer
• 9600 transmission speed
• 8 data bits
• 1 stop bit
• transmission mode on demand
• MX=: to send measurement data (X=1/2)
• A=: to send the analyzer status
• E=: to send error messages
• S=: to start a measurement cycle
• P=: to put the analyzers in standby
The analyzers send: "M0: CKS" response to the command "MX" when the measurement is not ready.
All messages are sent with a checksum which enables to check the transmission.
After the reception the analyzer or the sequencer should send the following character: A>≡.
Programming
Stopping the OPERATING mode
Press SELECT, the STOP command is displayed; confirm with ENTER. "If sure ENTER" is then
displayed: reconfirm with ENTER.
COMMAND mode:
• READING: for reading preset parameters
Entering READING. The analyzer must be in OPERATING mode, press SELECT, the STOP
command is displayed. Using the scroll keys, select the READING menu and press ENTER for
approximately 3 seconds.
• PROGRAMMING: for programming parameters and testing functions (SERVICE menu)
Entering PROGRAMMING. The analyzer must be stopped. The SELECT key switches between
the stopped action and the STOP command. Using the scroll keys, select the PROGRAMMING
menu and press ENTER for approximately 3 seconds.
MAIN menu
DISPLAY DESCRIPTION
MAIN-MENU Main menu and display of the sub-menus
The submenus can be invoked using the SCROLL UP/DOWN keys, the ENTER key selects a
submenu and the SELECT key returns to the main menu.
STOP menu
MAIN-MENU
STOP
Press ENTER.
18 English
Stops the instrument.
SUB-MENUS
STOP
START
PROGRAMMING / READING