Lenntech TESTOMAT 2000 THCl, Operating Instructions Manual

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SERVICE II
s st t
M E
Reset operating time
Maintenance interval
MAINTENANCE INTERV.
st st
M E
001d
INTERFACES
st st
M E
Type 0-20 mA
Type RS232
Type 4-20 mA *
Service II
The service II menu contains a number of functions for monitoring the operation of the
unit.
L
The functions in the service II menu have a direct influence on the operation, and
monitoring functions of the unit!
Reset operating time
After replacing the metering pump or the holder for the measuring chamber, the current operating time can be reset to
0 hours:
"M" º BASIC PROGRAM º SERVICE II º RESET OPERATING TIME
The current operating time can be called up in the information menu:
"i"
º INFORMATION º OPERATING VALUES
Maintenance interval
The observance of the maintenance interval is monitored and displayed by the
Testomat
®
2000 THCl. Program the desired maintenance interval in days.
( 0 days = no maintenance interval. )
Interfaces (optional)
Interface 0/4 - 20 mA
Another possibility for monitoring the analysis is the connection of
a recorder. For this purpose the unit is equipped with a
programmable current output.
Standard values of 0 - 20 mA or 4 - 20 mA can be selected.
L
A maximum working resistance of 500 Ù must not be
exceeded!
In situations where interferences might occur, and where very
long cables are used (approx. 20 m), a screened cable should
be used if possible.
Serial interface RS232
The connection of the Testomat ® 2000 to a protocol printer via the serial interface RS232 enables the print out of
measuring results and error messages. This means the analyses can be continuously recorded. This option is only
possible in conjunction with the plug in circuit card RS910 (Item No. 270310).