Table of Contents
Advertisement
9132 Portable IR Calibrator
User's Guide
8.2.1.1
8.2.1.2
8.2.1.3
8.2.1.4
8.2.2
32
simultaneously to enter the secondary menu. Press "SET" repeatedly until the
display reads PAr. Press "UP" until the serial interface menu is indicated with
SERIAL. Finally press "SET" to enter the serial parameter menu. In the serial
interface parameters menu are the baud rate, the sample rate, the duplex mode,
and the linefeed parameter.
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 baud rate may be pro-
grammed to 300, 600, 1200, 2400, 4800, or 9600 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.
Sample Period
The sample period is the next parameter in the menu and prompted with SPER.
The sample period is the time period in seconds between temperature measure-
ments transmitted from the serial interface. If the sample rate is set to 5, the in-
strument transmits the current measurement over the serial interface
approximately 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.
Duplex Mode
The next parameter is the duplex mode indicated with DUPL. 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 immediately
echoed or transmitted back to the device of origin. With half duplex the com-
mands are executed but not echoed. The default setting is full duplex. The
mode may be changed using "UP" or "DOWN" and pressing "SET".
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 character
(LF, ASCII10) 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".
Serial Operation
Once the cable has been attached and the interface set up properly the control-
ler immediately begins transmitting temperature readings at the programmed
rate. The serial communications uses 8 data bits, one stop bit, and no parity.
The set-point and other commands may be sent via the serial interface to set the
Advertisement
Table of Contents
