Fluke 9107 - Manual (Page 49)

“EXIT” while pressing “SET” and release to enter the secondary menu. Press
“SET” repeatedly until the display reads “ProbE”. This is the menu selection.
Press “UP” repeatedly until the serial interface menu is indicated with “SE-
rIAL”. Finally press “SET” to enter the serial parameter menu. In the serial in-
terface parameters menu are the BAUD rate, the sample rate, the duplex mode,
and the linefeed parameter.
9.1.2.1 BAUD Rate
The BAUD rate is the first parameter in the menu. The display prompts with
the BAUD rate parameter by showing “BAUd”. Press “SET” to choose to set
the BAUD rate. The current BAUD rate value is displayed. The serial commu-
nications BAUD rate may be programmed to 300, 600, 1200, or 2400 BAUD.
The BAUD rate is pre-programmed to 1200 BAUD. Use “UP” or “DOWN” to
change the BAUD rate value. Press “SET” to set the BAUD rate to the new
value or “EXIT” to abort the operation and skip to the next parameter in the
menu.
9.1.2.2 Sample Period
The sample period is the next parameter in the menu and prompted with “SAm-
PLE”. The sample period is the time period in seconds between temperature
measurements transmitted from the serial interface. If the sample rate is set to
5, the instrument transmits the current measurement over the serial interface ap-
proximately every five seconds. The automatic sampling is disabled with a
sample period of 0. Press “SET” to choose to set the sample period. Adjust the
period with “UP” or “DOWN” and then use “SET” to set the sample rate to the
displayed value.
9.1.2.3 Duplex Mode
The next parameter is the duplex mode indicated with “”. The duplex mode
may be set to half duplex (“HALF”) or full duplex (“FULL”). With full duplex
any commands received by the thermometer via the serial interface are immedi-
ately echoed or transmitted back to the device of origin. With half duplex the
commands are executed but not echoed. The default setting is full duplex. The
mode may be changed using “UP” or “DOWN” and pressing “SET”.
9.1.2.4 Linefeed
The final parameter in the serial interface menu is the linefeed mode. This pa-
rameter enables (“On”) or disables (“OFF”) transmission of a linefeed charac-
ter (LF, ASCII 10) after transmission of any carriage-return. The default setting
is with linefeed on. The mode may be changed using “UP” or “DOWN” and
pressing “SET”.
44 Hart Scientific
9 Digital Communication Interface