Kamstrup MULTICAL 402, Техническое описание

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MULTICAL® 402
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Kamstrup A/S · Technical Description · 5512-742_M1_GB_01.2016
13.2.5 Autointegration
The purpose of autointegration is to test the calculator’s accuracy. During autointegration the flow through the
meter must be cut off to make it possible to read volume and energy counted during autointegration without the
meter continuing normal counting in the registers afterwards.
Autointegration requires input of a volume as well as a number of integrations, over which the meter is to
distribute the volume. MULTICAL
®
Furthermore, the high-resolution verification registers are reset to ensure that they include the result of the
autointegration alone after the autointegration, not an accumulation with previously counted values.
402 is configured for autointegration = 100 litres to be distributed over 40
integrations from the factory.
Before starting autointegration, VerifyCtrl of the module plug must be connected to the meter’s ground – see
below sketch. Subsequently the sub-key is pressed continuously for 5-6 seconds, upon which the ”OK” symbol in
the display is switched on and the integration starts. When autointegration starts the high-resolution registers are
reset, whereas the legal volume registers continue counting.
Subsequently, the meter starts the integrations. With each integration the temperatures are measured and
calculated, volume is counted and the energies (corresponding to the volume counted and the temperatures
calculated) are calculated and totalized.
After autointegration all volume and energy registers – incl. the high-resolution verification registers – have been
counted with the given volume and the calculated energies. Furthermore, the average of the temperatures
measured during autointegration has been saved in two temperature verification registers, T1 average and T2
average.
For calculation of accuracy and precision the registers with RID 223, 155, 229 and 230 – volume, energy, T1
average and T2 average respectively – can be read out after the autointegration.
Verification registers RID
Energy EHighRes 155
Volume VHighRes 223
T1 average T1averrage_AutoInt 229
T2 average T2averrage_AutoInt 230