Commissioning
6.2 Preparation for commissioning
FIDAMAT 6
Operating Instructions, 01/2019, A5E00222135-04
55
6.2 Preparation for commissioning
6.2.1 General information for commissioning
Device position
The FIDAMAT 6 may only be operated in a horizontal position.
Operation
Before connecting and switching on the device, the operator must have made himself
familiar with the device operation.
Interfaces
Before use, the interfaces must be correctly allocated and parameterized.
Noise damping
The output signal fluctuations caused by noise in the measured signal can be reduced using
function 50. This function offers you the option of parameterizing a low-pass filter which can
be assigned a time constant up to 300 s.
Temperature influence
During operation, make sure that the permissible ambient temperature of 5 °C to 45 °C is
observed.
6.2.2 Gas preparation
6.2.2.1 Supply gas
The FIDAMAT 6 is often used to measure hydrocarbons with a concentration of less than
1 ppm. The supply gases (combustion gas, combustion air and zero gas) must have a
degree of purity of 5.0 (= 99.9990%) in order to guarantee correct measurements. The
higher the purity of the supply gases, the lower the zero current and thus the noise that
defines the lower detection limit. If the measured value of the sample gas is less than the
measured value of the zero gas, for example, the zero gas is contaminated or the
contamination comes from the gas supply lines or other parts outside the FIDAMAT 6.
If plastic tubes (including PTFE) are used, the diffusion of hydrocarbons through the walls
must also be considered. Therefore, supply gas supply lines made of high-purity steel or
copper pipes must be used for measurements of low concentrations.
To Next Page
Loading...
Need help?
General
