6 appendix, 1 thermoprobes, 1 various models – Metrohm 859 Titrotherm User Manual
Page 30: 2 cleaning and storage, Thermoprobes, Various models, Cleaning and storage, Figure 13, Thermoprobes – two models
6.1 Thermoprobes
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859 Titrotherm
6 Appendix
6.1
Thermoprobes
6.1.1
Various models
The sensors for the 859 Titrotherm are called Thermoprobes. A Thermop-
robe is a temperature sensor that is based on semiconductor technology
(thermistor). It has a short response time of 0.3 s and a high resolution of
10
–5
K. This enables the precise recording of even the smallest of tempera-
ture changes that occur during a titration.
In contrast to potentiometric electrodes, Thermoprobes need not be cali-
brated!
6.9011.020
6.9011.040
Figure 13
Thermoprobes – two models
Thermoprobe with glass shaft
(6.9011.020)
For titrations in aqueous and nonaqueous
media. Not HF-resistant.
Thermoprobe with shaft made of PP
(6.9011.040)
For titrations in aqueous media. HF-resistant.
Can also be used in acidic solutions contain-
ing fluoride.
6.1.2
Cleaning and storage
The sensor can be cleaned by rinsing or brief immersion in a suitable sol-
vent. Immerse all openings in the case of the 6.9011.020.
The sensor shaft can be carefully cleaned with a cloth.