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Instruction for use | Supercal 5
11.9.4 Insulation Regulations for Refrigeration Systems
In refrigeration systems, the mechanical flow sensors and the temperature sensors may only
be insulated up to the screw connection.
11.10 Calibration and Measurement Data
If calculators are used for the direct billing of energy between energy supplier and consumer
(public payment transactions), they are subject to calibration in most EU countries.
The purpose of the calibration obligation is to protect both the consumer of energy and the
supplier from deliberate fraud and harmful manipulation.
Only type-approved measuring instruments can be calibrated. This prevents unsuitable sys-
tems from being used.
They are determined in the factory or by an authorized authority. They are consequently
protected against unauthorized intervention by calibration seals.
In particular, the following parameters of a calculator are subject to calibration:
Pulse valence/frequency and installation location of the flow sensor
Cumulated energy and volume with associated units
Display ranges and units of power, flow and temperature
They are determined in the factory or by an authorized authority. They are consequently
protected against unauthorized intervention by calibration seals.
If these calibration-relevant safety symbols are damaged or removed, all warranty/service
warranties and the calibration of the calculator expire.
11.11 Nowa
“NOWA”
means “
NOrmierter
heat meter adapter”.
The NOWA interface is a standardized interface that establishes the connection to the con-
trol of the custody transfer test bench via a modern calculator interface.
The relevant data of the calculators are recorded employing test benches operated by the
custody transfer office and the necessary adjustment, calibration, and parameterization are
carried out in the course of the custody transfer test.
All modern calculators have so-called standardized interfaces. However, these are designed
for the standardized readout of the calculators, but not for their adjustment, calibration and
parameterizati-on via a custody transfer test bench.
Besides, the manufacturers of modern calculators have not yet implemented a uniformly
defined telegram structure for the calculator interfaces. The development of the NOWA
adapter has be-come necessary.
Schematic representation of a custody transfer test bench.
condensation water
condensation water
(capillary effect possible
