Keithley TEC SourceMeter 2510, User Manual

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Models 2510 and 2510-AT User’s Manual Basic Operation 3-3
Limit characteristics
For each control function (T, V, I, and R), you can program limits to protect the DUT for
damage or even to perform limit testing. The Model 2510 will display an appropriate status
message if a programmed limit has been exceeded, and you can query if a limit has been
tripped with an appropriate remote command (see
Section 10 ). See “Configuring func-
tions,” page 3-3 , for details on programming protection limits for the various functions.
Configuring functions
The following paragraphs list step-by-step procedures for configuring the temperature,
voltage, current, and resistance functions.
NOTE See “PID Control Concepts,” page 4-1 , for information on setting PID control
loop proportional, integral, and derivative constants. See also “Sensor coeffi-
cients,” page 4-14 , for information on thermistor and RTD coefficients.
Configuring temperature
Using Table 3-1 as a guide, configure the temperature function as follows:
1. Press CONFIG then T to access the temperature configuration menu.
2. Select PROTECTION, then press ENTER.
3. Select CONTROL, then press ENTER.
4. Choose ENABLE, then press ENTER.
5. Select LOLIM, then press ENTER. Set the low temperature limit using the EDIT
keys, then press ENTER again.
6. Choose HILIM, then press ENTER, set the high temperature limit using the EDIT
keys, then again press ENTER.
7. Press EXIT, choose SENSOR-TYPE, then press ENTER.
8. Choose the desired temperature sensor (THERMISTOR, RTD, I-SS, or V-SS), then
press ENTER.
9. Program the settings for the selected temperature sensor. For example, for an RTD
sensor, choose the following:
• TYPE: Select PT385, PT3916, PT100, D100, F100, or USER type. (For
USER type, set
α
,
β
, and
δ
.)
• RANGE: Select 100 or 1000.
• I-SRC: Set RTD current (AUTO, 3.3µA, 10µA, 33.3µA, 100µA, 833.3µA, or
2.5mA).
• SENSE-MODE: Choose 2-WIRE or 4-WIRE sensing. (Use 4-wire for sensors
<1k
Ω
).
10. Press EXIT as needed to return to the CONFIG TEMPERATURE menu.
11. Select UNITS, press ENTER, then select the desired units (°C, °F, or Kelvin).