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Verfügbare Sprachen
Verfügbare Sprachen
1. Basic safety instructions
This instruction manual includes information and safety information which must be followed in order to
ensure safe working in the conditions described.
Please read through the following safety instructions carefully.
In case of doubt (in the form of translation errors), the German Instruction manual is regarded as the
master version.
Avoid electricity:
Never use the instrument and external probes to measure on or near live parts if the instrument is
not expressly approved for current and voltage measurement!
Protect the unit:
Never store the instrument with solvents (e.g. acetone).
Preserve the product safety/warranty entitlement:
The instrument should only be operated within the parameters specified in the Technical data.
Please use the instrument appropriately and according to instructions.
Never use force!
The instrument should not be opened except if expressly described in this instruction manual for
maintenance purposes.
The temperature data for the probes only refer to the sensor measuring range. Never subject
handles or pipes to temperatures greater than 70°C unless they are expressly approved for higher
temperatures.
Disposal:
Empty batteries should be disposed of appropriately.
Please return the instrument us once it has been taken out of operation and we will dispose of it
for you.
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Malfunctioning and inadmissible operation
As soon as one suspects that the safety of the equipment is endangered, it must be taken out of
service and immediately removed from the Ex-area. Precautions must be taken to prevent its
unintentional reuse.
We recommend that the unit be returned to the manufacturer for checking.
For example, the safety of the unit could be endangered when:
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damage to the housing is visible.
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the unit was subjected to improper strain.
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the unit was incorrectly stored.
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the unit was damaged in transit.
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the lettering on the unit is unreadable.
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malfunctioning occurs.
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obviously incorrect measurements occur.
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measurements with the unit are no longer possible.
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the permissible limiting values were exceeded.
Safety regulations
In order to exclude incorrect operation of the unit, its use assumes that the user is aware of and
complies with the usual safety regulations.
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the batteries may only be changed outside the Ex-area.
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it is not allowed to take additional batteries into the Ex-area.
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only type approved batteries may be used.
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Only specified and permitted probes should be used.
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It must be ensured that the unit is not taken into Zone 0.
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measurements on electrically live parts are not allowed.
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observe the measuring range of the temperature sensors. Overheating will damage the sensors.
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avoid use in aggressive acids or alkalis.
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the unit may not be opened in Ex-areas.
Special conditions for use in Zone 0
The measurement of temperatures with the Ex-Pt 720 within Zone 0 is only permitted if the following
conditions are complied with:
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a stainless-steel probe Type 0628 2232 or 0628 6432 is used.
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the Ex-Pt 720 itself may not be taken into Zone 0.
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It must be absolutely ensured that the unit does not find its way accidentally into Zone 0. In
order to guarantee this, the carrying strap (See page 24) of the unit must be attached additionally
to the belt of the user or to a loop attached to his belt. The length of the carrying strap must be so
adjusted that when the unit hangs freely on the carrying strap, the Ex-Pt 720 maintains a spacing
of 50cm to the boundary area of Zone 0.
-
Should the unit be used in the optionally available leather case (Part no. 0516 0133), the carrying
strap of the unit must still comply with the conditions for attachment to the user's body.
Using probes
Only the sensors specified in the approval certificate may be used. Probes no. 0628 2232 and
0628 2432 may be used in Zone 0 !
2.
- safety instructions
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