Chopin Mixolab 2, Maintenance Manual

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107
Maintenance manual
09/2016
Mixolab 2
Chapter 3 Repairs
Before opening the Mixolab, you must switch it off and dis-
connect its power supply.
1. Remove the right-hand cover of the Mixolab (see op. 1-1) .
2. Disconnect the connector of the temperature sensor being
tested (see
(A) )
3. Measure the sensor's ohmic resistance on the connector plug:
- Bowl unit temperature = between pins [1 or 3 ] and [2 ot 4].
- Tank temperature = between pins [1 or 4 ] and [2 or 5].
4. The resistance should be 100
:
at 0°C, with a slope of 0.384
:
/°C; i.e. for instance for 25°C: 100 + (0.384x25), namely
109.6
:
.
5. When you have taken the measurements, put the right-hand
cover of the Mixolab back on
(see op. 1-1) .
12: Adjusting and control operations for the Mixolab
Operation 12-12 Checking the characteristics of a PT100 temperature sensor
Page: 1 / 1
Consumables:
Tools:
-
Multimeter
A
Bowl temperature
Tank temperature
CPU
board