3-21
3.10.1 Temperature measurement configuration
Use the following menu structure to configure the Model
2000/2010 for temperature measurements.
Press SHIFT and then TEMP. The following choices are
available using the
and
keys:
• UNITS — C, K, or F (Centigrade, Kelvin, Fahrenheit).
Use to select the displayed units for temperature measure-
ments.
• SENSOR (Model 2010 only) — TCOUPLE or 4W-
RTD (sensor type). Use to select the sensor type for the
Model 2010.
• TYPE — Use to specify the sensor that you are using:
Model 2000 - J, K, or T (thermocouple type).
Model 2010 - J, K, T, or N (thermocouple type) or
PT100, USER, PT3916, PT385, F100 or D100 (4W-
RTD type).
• JUNC — SIM or CH1 (simulated or referenced to chan-
nel 1). Select CH1 to reference measurements to the ref-
erence junction of the Model 2001-TCSCAN card.
3.10.2 Temperature measurement procedure
Perform the following steps to perform temperature mea-
surements:
Step 1: Connect sensors
Thermocouples — Connect the thermocouples to the scan-
ner input connectors using the scheme shown in Figure 2-5
in Section 2.
RTDs (Model 2010 only) — If using RTD probes, connect
them to the scanner using the basic resistance connection
schemes provided in Section 2. For 4-wire probes, pair the
connections as follows:
• Channels 2 and 7: probe #1
• Channels 3 and 8: probe #2
• Channels 4 and 9: probe #3
• Channels 5 and 10: probe #4
Do not use channels 5 and 10 for 2-wire probes because of
the higher path resistance of these channels.
Step 2: Configure temperature measurements
As previously explained (see ‘‘Temperature measurement
configuration’’), configure the Model 2000/2010 for temper-
ature measurements.
Step 3: Configure stepping/scanning
As explained in paragraph 3.9, configure the Model 2000/
2010 for internal stepping/scanning. From the SHIFT/CON-
FIG menu structure, you can also modify the step/scan list,
specify the time between stepped channels and scans, and set
the reading count.
Step 4: Step or scan channels
Manual stepping — Use the
and
keys to manually
step through channels on the Model 2001-TCSCAN card.
The OPEN and CLOSE keys can also be used to control
channels. See ‘‘Open and close channels’’ in paragraph 3-9
for details on manually stepping through channels.
Automatic stepping/scanning — The STEP key is used to
start automatic stepping, and the SCAN key is used to start
automatic scanning. When STEPping, an output trigger is
sent after each channel is closed. When SCANning, an out-
put trigger is sent at the end of the scan list.
Step 5: Stop automatic stepping/scanning
When finished, exit from the stepping/scanning mode by
pressing SHIFT and then HALT.
3.11 Remote operation
Tables 3-2 and 3-3 summarize commands typically used for
scanning and temperature measurements over the IEEE-488
bus and the RS-232 Interface. The commands in Table 3-2
apply to both the Model 2000 and the Model 2010, while the
additional commands for the TEMP function in Table 3-3 ap-
ply only to the Model 2010. For more detailed information
on these and other bus commands, refer to the Model 2000
or 2010 User's Manual.
Summary of Contents for 2001-TCSCAN
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Page 63: ...Operation 3 34...
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