Chopin Mixolab, Maintenance Manual

Page: 118 / 144

118 Chapter 3 Repair
Maintenance manual
MM-MIXO-EN Ind. 0
04/2012
Mixolab
First turn off the Mixolab and disconnect the mains supply.
1. Remove the right casing (see op. 1-1) .
2. Disconnect the temperature probe to be tested (see (A) )
3. Measure on the cable’s connector the ohmic resistance of the
probe:
- Bowl block temperature = between terminals [1 or 3] and [2
or 4].
- Tank temperature = between terminals [1 or 4] and [2 or 5].
4. The resistance should be 100
Ω
at 0°C, with a slope of
0.384
Ω
/°C; i.e. for example for 25°C: 100 + (0.384x25), or
109.6
Ω
.
5. Once measurements done, re-install the right casing of the
Mixolab
(see op. 1-1) .
11 : Adjustments and checks for the Mixolab
Operation 11-12 Checking characteristics of a Pt100 temperature probe
Sheet: 1 / 1
Consumables:
Tools:
-
Multimeter
A
Bowl temperature
Tank temperature
CPU
board