1.5
Observing additional operating instructions
Additional interface modules can be fitted to the device. Before installing
and using interface modules, always read and observe the operating manual
accompanying the relevant interface module.
1.6
Limits of the device
1.6.1 Usage limits
n
The process thermostat with flow controller is used to convey electrically
conductive tempering liquids (greater than 1 µS/cm) within their working
temperature range in a closed circuit, to temper them and to control the
volume flow to a predetermined value. The heat transfer liquid is pumped
through a hose to the external application and flows through a hose back
into the device.
n
Silicone oils and mineral oils are not suitable for through-flow control.
n
Outdoor operation
n
Operation in a potentially explosive area
n
Operation after incomplete assembly
n
Operation with insufficiently conductive heat transfer liquid
n
Operation with a combustible, flammable, highly flammable or explosive
heat transfer liquid
n
Operation outside the permissible temperature range of the heat
transfer liquid
n
Operation in a non-closed hydraulic circuit
n
Operation with non-standard cables, hoses or other connections
n
Operation with pump pressure or set temperature not suitable for the
application
n
Operation for heating or cooling of foodstuffs
n
Operation under medical conditions in accordance with DIN EN
60601-1 or IEC 601-1
n
Electrical energy (each device)
n
Cooling water (required for water-cooled process thermostat)
n
See the Technical Data chapter
1.6.2 Environmental and operating conditions
The device may only be used in the following areas:
n
Production, quality assurance, research and development in an industrial
environment
n
Only used inside buildings
n
Use up to a height of 2,000 m above sea level
n
Ambient temperature from 5°C to 40°C
n
Maximum relative humidity 80% at an ambient temperature of 31°C,
relative humidity linearly decreasing to 50% at 40°C.
Interface modules
Intended use
Reasonably foreseeable improper use
Type of energy supply
Performance limits, operating values
V4
Integral process thermostats with flow control unit
11 / 171
