ThermoProbe TP7C Benutzeranleitung

USER INSTRUCTIONS - TP7C & TP9
INTRODUCTION
This manual describes the basic function, use and safety instructions for a model TP7C or TP9 portable digital thermometer
instrument. These ThermoProbe instruments are intended for use in both hazardous (flammable) 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.).
SAFETY INFORMATION BEFORE USE
ThermoProbe thermometers are designed for safe operation in hazardous locations (Potentially Flammable or Explosive). The user
must have a working knowledge of appropriate safety instructions.
a) The inspector 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 both for safety reasons 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 certification 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 tank according to clause 6.3.2 e), IEC/EN 60079-14
before and during introduction into the tank and shall remain bonded until complete withdrawal from the tank.
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.
11/2012, JK