05/2021, JK
SAFETY INSTRUCTIONS - TP7-D & TP9-A
REV 052021
These ThermoProbe instruments are intended for use in both hazardous (potentially flammable or explosive) and non-
hazardous areas under dry conditions at ambient temperatures between -20 to 40
°
C.
The instruments are not intended for use in permanent outdoor installations and are not intended or tested for icing
conditions.
Additional means of protection should be used where the equipment may be exposed to excessive external
stresses (e.g. vibration, heat, impact, etc.).
The user must have a working knowledge of appropriate safety
requirements.
a) The user must have a thorough knowledge of the products to be measured and must know of the safety precautions
to be taken when working with the material to be measured.
b) The instrument shall be checked concerning severe defects; check that instrument is complete (including
grounding/bonding cable), has good batteries, etc. If necessary, check measurement accuracy. If any defects are
found, the instrument should not be used until repairs have been made.
c) The instrument, especially cable and probe, should be clean for safety and ease of use.
d) The physical measurement location should be evaluated for primary and secondary risks.
e) Power source must be removed before performing any maintenance.
f) Exchange of components other than the batteries may compromise ATEX/IECEx or other certifications and shall
only be undertaken by ThermoProbe or one of its qualified service providers. See also “Authorized Repair” section.
g) To reduce the risk of fire or explosion, this device must be bonded to the vessel according to clause 6.3.2 e),
IEC/EN 60079-14 before and during introduction into the vessel and shall remain bonded until the sensor probe is
completely withdrawn from the vessel.
h) The device must remain bonded to ground/earth using the provided connection whenever a hazardous atmosphere
could be present as well as during situations where electrostatic charging can occur such as the
unwinding/winding of
the thermometer cable or filling or emptying of the tank.
CAUTION: In the event that any part of the instrument should become electrostatically charged in a potentially
hazardous location, follow company policies for testing and clearing the area of any hazardous gases before
attempting to bond the instrument to earth ground. If this is not possible allow sufficient time for the instrument to
naturally dissipate any charges before attempting to bond to earth ground. Given the atmosphere, this could take
several hours.
GUIDANCE NOTE
Problems with aggressive substances and environments: Be aware of aggressive substances and that extra protection
may be needed.
Caustic soda, highly basic and acidic substances will erode aluminum and copper ground clip and wire. The Sensor-
Cable assembly has external surfaces of stainless steel and fluoropolymer material. Exposure to Excessive heat can
melt the plastic components of the instrument.
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