Chapter 5 Temperature Controller Operation 55
I=
,
T=,
R=, i=, v=
- Indicates the measured value of current, temperature, resistance,
AD590 sensor current, or LM335 sensor voltage. An
err
indicates a sensor error,
usually caused by the sensor not hooked up or the wrong sensor selected. In the
screen shown above, the
T
is shown.
I
,
R, i
, and
v
would be seen when operating in
those modes.
SETUP
- Pushing the adjacent soft key activates the setup screen.
CAL
- Pushing the adjacent soft key switches to the calibration menu, where I
TE
,
Sensor, and RTD cable null can be selected.
LINK
- Pushing the adjacent soft key activates the linking screen. This establishes
any interaction that may be desired between different modules. See the Model 6000
main manual for a description of the linking process.
The bottom line on the display has 6 “LED” elements, each indicating a particular
state of the TEC. They are defined as:
I
When illuminated, indicates the TEC module is in current limit.
V
When illuminated, indicates the TEC module has reached it’s
voltage limit.
T
When illuminated, indicates the TEC module is outside the
temperature limits defined by T
HI
and T
LO
in the setup screen.
R
When illuminated, indicates the TEC module is outside the
reference limits defined by R
HI
/v
HI
/i
HI
and R
LO
/v
LO
/i
LO
in the
setup screen.
C/H
When illuminated, indicates that the TEC is cooling or heating.
OutT/InT
When illuminated, indicates that the TEC is out of tolerance or in
tolerance as defined by
Tol Time
and
Tol Temp
in the setup
screen.
5.4.3 TEC Setup Screen
The TEC Setup screen is shown in Figure 30. Each section is described below in
detail.
→
→→
→
Sens = RTD
Mode = Const T
Gain = 30 Fast
Lim Ite= 2.00 A
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