DESMI PUMPING TECHNOLOGY A/S P a g e | - 32 -Tagholm 19400 Nørresundby - DenmarkPhone.: +45 96 32 81 11Fax : +45 98 17 54 99E-mail: desmi@desmi.comwww.desmi.com10.9 Thermal sensorPump type ED and pumps supplied with a soft stuffing box must always be fitted with a thermalsensor if the pump is designed for use in a potentially explosive environment. The sensor isfitted to secure that the pump’s max. allowed surface temperature is not exceeded duringoperation.Pump type ED and pumps supplied with a soft stuffing box must always be fitted witha thermal sensor if they are installed in a potentially explosive environment.Pumps not designed for potentially explosive environments are only supplied with thermalsensor according to customer requests.When installing the pump, the thermal sensor must always be connected to a control, and thecontrol must be connected before starting to use the pump. The control is to be connected inconformity with the supplier’s instructions.Connect the control in conformity with the supplier’s instructionsThe thermal sensor must always be connected to the control, and the control must be setaccording to the temperature class for which the pump is approved and according to theenvironment in which the pump is to operate. It appears from the ATEX labelling on the pump’sname plate for which environment and which temperature class the pump is approved. See thepump’s name plate!Connect the thermal sensor to the control, and set it before starting up the pumpThe table below shows which temperature the control should be set to on the basis of thetemperature class and whether it is an environment containing gas or dust.ATEXATEXATEX
