Setup
Temperature Controller
The Eurotherm Model 2404 Temperature Controller is the most important
component of the temperature control system and it is strongly recom-
mended that operators carefully study the Model 2404 instruction manual
included with the Consistometer.
If a test requires a custom program, it is important to build and save the
program prior to creating the slurry and loading the slurry cup.
Below is an example that illustrates how to program the controller. In this
example, the target temperature is 150°C, which is obtained at a rate of 2.5
degrees per minute. The target temperature of 150°C is maintained for the
duration of 180 minutes (3 hours), after which you want to stop the heat.
Press the “Page” button until the display reads “ProG List.” Use the scroll
button to decide which setting to change. Use the arrow buttons to change
the values for that setting.
For the test described above, you will want the following settings:
ProG List
Setting
Explanation
Seg
1
(segment 1)
Type
rmp.r
(ramp rate - other choices include ramp time
and dwell)
Tgt
150
(final temperature)
Rate
2.5
(rate per minute)
Segm
2
(segment 2)
Type
Dwell
(holds the temperature for the amount of time
chosen for Dur below)
Dur
180
(duration time)
Segm
3
(segment 3)
Type
end
End.t
sop
To run the test, push and hold the “Run/Hold” button until the light for Run
turns on. To stop the test, push and hold the “Run/Hold” button until the
light for Run and Hold both turn off. Be sure and turn the “HEATER” switch
off as well.
The temperature controller utilizes a high alarm setpoint which will bring the
unit to an alarm condition if the temperature ever exceeds the set value.
This value is defaulted to 200°C or 400°F, but can be programmed to differ-
ent values.
An alarm condition will also occur if the slurry thermocouple is unplugged.
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