Kamstrup MULTICAL 402, Техническое описание, Страница: 16 / 113

MULTICAL® 402
16
Kamstrup A/S · Technical Description · 5512-742_M1_GB_01.2016
3.3 PROG, A-B-CCC
The meter’s legal parameters are determined by the Prog, which cannot be changed without breaking the
verification seal. This means that the change must be made by an accredited laboratory.
The A-code
indicates whether the flow sensor is mounted in forward or return pipe. As the density and specific
heat capacity of water increases with temperature, the calculator must correct for the installation type in
question.
Wrong programming or installation will result in measuring errors. Further details concerning installation of flow
sensor in flow or return for heat and cooling meters appear from paragraph 6.6.
The B-code indicates the measuring unit used in the energy register. GJ, kWh or MWh are the most frequently
used units, whereas Gcal are only used in a few countries outside the EEA.
The CCC-code optimizes the display resolution for the selected flow sensor size at the same time as the type
approval regulations as to minimum resolution and maximum register overflow are obeyed. The CCC-codes are
divided into two tables for standard resolution and high resolution respectively.
Prog. number A - B - CCC
Flow sensor position:
k-factor
table
- Forward (at T1) 3
- Return (at T2) 4
Measuring unit, Energy
- GJ 2
- kWh 3
- MWh 4
- Gcal 5
Flow sensor coding
(CCC-table) CCC