PMT TV4000LT, Manual, Page: 18 / 44

Page 18/44
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Tamson Instruments bv
Rev. 2.1 UK 0517
7.1.3 Menu item "Max Power"
(press: low, med, hi, max)
Limits the applied power by a maximum value:
Low
Maximum of 25% applied
Medium Maximum of 50% applied
High Maximum of 75% applied
Maximum 100% power is applied
Limiting the power can be used to lower overshoot
temperature..
7.1.4 Menu item "Boost heater"
A secondary heater is used to quickly heat up the bath.
This menu item enables or disables the boost heater.
Standard value: On
7.1.5 Menu item "Time const"
Used to select time to tune. The option precise has to be
used to reach maximum temperature accuracy. Options
are:
- Fast
60 seconds
- Medium 120 seconds
- Slow 180 seconds
- Precise 240 seconds
Standard value: Precise
7.1.6 Menu item "Stirrer" (optional)
Optional: Stirrer 0 .. 100% (step 6%). Inactive
7.1.7 Menu item "Low alarm" (optional)
Optional: min SP to max SP. resolution 0.1°C.
No hardware connected, display function only.
7.1.8 Menu item "High alarm" (optional)
Optional: min SP to max SP. resolution 0.1°C.
No hardware connected, display function only.
7.1.9 Menu item "PID parameter"
PID set 1 -
PID set 2 - deactivated
PID set 3 - deactivated
PID set 4 - Activated when communication
via RS232
Each set offers individual PID settings for:
Proportional band value
Integrating value
Differentiating value
Default settings
Pb*
:= 25
I := 16
D := 0
*Pb= proportional band. Proportional value P is found to be 100/Pb.