EASY
SENSE Vu+ Reference Manual DO255 (3)
28
Data Harvest Group Ltd.
For Advanced Users:
Resolution 0.1˚C (0.1˚F)
Accuracy
0.5˚C at 0 - 70˚C, rising to
1˚C at extremes of range.
The 3 mm by 200 mm AISI 316 stainless steel tube has a high resistance to corrosion from a
wide variety of weak acids and alkalis. Some environments e.g. saltwater may cause some
discolouration to the stainless steel tube but this will have no
effect on the sensor’s performance.
The sensor can be left in an alkaline solution such as Sodium Hydroxide (NaOH) for up to 48
hours, with only minor discoloration. We do not recommend use in a solution whose
concentration is greater than 3 mol dm
-3
.
The
maximum length of time recommended for exposure to an acid is dependent on the acid’s
concentration. In general, we do not recommend that temperature sensors be left to soak in
acids of between 1
– 3 mol dm
-3
concentrations for longer than 48 hours.
The exceptions to this rule are Hydrochloric acid (HCl), and Sulphuric Acid (H
2
SO
4
). The maximum
recommended times for exposure are:
Limited warranty
For information about the terms of the product warranty, see the Data Harvest website at: https://data-
harvest.co.uk/warranty.
Data Harvest Group Ltd., 1 Eden Court, Leighton Buzzard, Bedfordshire LU7 4FY
Tel: +44 (0)1525 373666, Fax: +44 (0)1525 851638
e-mail:
Concentration of
Hydrochloric acid
Maximum
exposure
1 mol dm
-3
20 minutes
2 mol dm
-3
10 minutes
3 mol dm
-3
5 minutes
Concentration of
Sulphuric acid
Maximum
exposure
1 mol dm
-3
48 hours
2 mol dm
-3
20 minutes
3 mol dm
-3
10 minutes
Note:
Data Harvest products are designed for
educational
use and are not intended for use in
industrial, medical or commercial applications.
WEEE (
W
aste
E
lectrical and
E
lectronic
E
quipment) Legislation
Data Harvest Group Ltd is fully compliant with WEEE legislation and is pleased to
provide a disposal service for any of our products when their life expires. Simply return
them to us clearly identified as ‘life expired’ and we will dispose of them for you.
This device complies with Part 15 (Radio Frequency Devices) of the Federal
Communications Commission (
FCC
) rules.
Operation is subject to the following two conditions: (1) this device may not
cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
