Newport 8000 - Figure 24 - TEC Main Screen

48 Chapter 4 Temperature Controller Module Operation
Figure 24 - TEC Main Screen
I
SET
=
,
T
SET
=, R
SET
=, i
SET
=,
and
v
SET
=
- Indicates the set point value of current,
temperature resistance, AD590 sensor current, or LM335 sensor voltage. In the
screen shown above, the
T
SET
is shown.
I
SET,
R
SET
, i
SET
=,
and
v
SET
=
would be
seen when operating in those modes. Set point can be changed with numeric keys or
the knob.
I=
,
T=, R=, i=,
and
v=
- Indicates the measured value of current, temperature or
resistance. A
Sens 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.
OFF/ON
- Indicates the state of the TEC output. Pushing the adjacent soft key
toggles the state.
Setup
- Pushing the adjacent soft key activates the setup screen.
The bottom line on the display has 6 “LED” elements, each indicating a particular
state of the laser. They are defined as:
I
LIMIT
When illuminated, indicates the TEC module is in current
limit.
V
LIMIT
When illuminated, indicates the TEC module has reached it’s
voltage limit.
T
LIMIT
When illuminated, indicates the TEC module is outside the
temperature limits defined by T
HI
and T
LO
in the setup screen.
R
LIMIT
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.
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