89750147 Crouzet USA, 89750147 Datasheet - Page 208

• Manufacturer Part Number: 89750147
• Description: STAINLESS SLEEVE-MILL TEMP PRB
• Manufacturer: Crouzet USA

Specifications of 89750147

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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The entire range incorporates an algorithm known as SMART. This
algorithm calculates the PID control parameters automatically on star-
ting (auto-tune) and during the process if any changes occur (adaptive
tune) without any user intervention.
The SMART function triggers its auto-tune action to calculate the PID
parameters.
This enables an optimum approach to reaching the setpoint.
The SMART function triggers its adaptive tune action to recalculate the
PID parameters if there is a change in the setpoint or a modification to
the load.
This function provides gradual preheating of the process.
This makes it possible to prolong the lifetime of the heating element and
avoid any thermal shocks.
If you require this function, simply set the required output power (OLH)
for preheating as well as its action time (t OL).
On starting, the inhibition function for the temperature threshold alarm
ensures that no fault indication will be acknowledged during preheating.
In addition, these controllers also offer the possibility of programming a
ramp to gradually increase power to further limit the risk of thermal
shocks.
There are many applications where it is often difficult to install a
sensor in the most ideal location.
Indeed, in several cases, the sensor is installed quite far away from the
desired location.
Installing a sensor at such a distance can generate a measured value
which is not actually representative of the process value.
It is for this reason that our controllers offer the possibility of
programming a constant shift value known as an OFFSET. This
OFFSET is the difference between the actual temperature to be
measured and the temperature of the location where the sensor is
installed. Thus, the value read on the controller is that of the
temperature at the monitoring point and not the value at the sensor
installation point.
Sommaire général
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➜
SMART function : auto-tune and adaptive tune
SOFT-START function : gradual preheating
OFFSET function : constant offset value
COMMON FUNCTIONS FOR THE RANGE OF DIGITAL CONTROLLERS
Starting period
During the process
Setpoint
Measurement
100%
OLH
Output power
Starting
Display rea-
12
10
8
6
4
2
limit threshold
Output power
ding
Output power
0
limit time
2
tOL
Starting
4
Starting period
6
Auto-tune
8 10 12
constant programmed
deviation (known as OFFSET)
Gradual power increase ramp (%/s)
with OFFSET
without OFFSET
For more information www.crouzet.com
Control
During the process
Measurement
Adaptive tune
Time
Time