HD2108/HD2128
- 16 -
V2.3
WARNINGS
AND
OPERATING
INSTRUCTIONS
1.
Do not expose the probes to gases or liquids that could corrode the material of the probe. Clean
the probe carefully after each measurement.
2.
Do not bend the probe connectors or force them upward or downward.
3.
Comply with the correct polarity of the probe.
4.
Do not bend or force the contacts when inserting the probe connector into the instrument.
5.
Do not bend, deform or drop the probes, as this could cause irreparable damage.
6.
Always select the most suitable probe for your application.
7.
In general, do not use temperature probes in presence of corrosive gases or liquids; the probe
external container is made of AISI 316 or INCONEL stainless steel, while the contact probe
container is made from AISI 316 or INCONEL stainless steel plus silver. Avoid contact
between the probe surface and any sticky surface or substance that could corrode or damage it.
8.
To obtain reliable temperature measurements, temperature variations that are too rapid must be
avoided.
9.
Temperature probes for surface measurements (contact probes) must be held perpendicular
against the surface. Apply oil or heat-conductive paste between the surface and the probe in
order to improve contact and reduce reading time. Whatever you do, do not use water or solvent
for this purpose. A contact measurement is always very hard to perform. It has high levels of
uncertainty and depends on the ability of the operator.
10.
Temperature measurements on non-metal surfaces usually require a great deal of time due to the
low heat conductivity of non-metal materials.
11.
The sensor is not insulated from its external casing; be very careful not to come into contact
with live parts (above 48V). This could be extremely dangerous for the instrument as
well as for the operator, who could be electrocuted.
12.
Avoid taking measurements in presence of high frequency sources, microwave ovens or large
magnetic fields; results may not be very reliable.
13.
The instrument is water resistant and IP66, but should not be immersed in water. Protect the
connectors from water by closing them well using their caps. The probe connectors must be
fitted with sealing gaskets. Should the instrument fall into the water, check for any water
infiltration. Gently handle the instrument in such a way as to prevent any water infiltration from
the connectors' side.
