29 Calibration and test Page 130 of 142
MCS301 meter - product Manual 1.25 MetCom Solutions GmbH
29 Calibration and test
29.1 Calibration
The MCS301 meter has been adjusted in the factory, with the calibration constants matched to
the software concerned. Subsequent calibration by the customer is not required.
29.2 Precondition during testing
Normally the accuracy testing of the meter is done using the 2 LED’s, which are blinking
according the consumed active (LED 1) and reactive energy (LED 2). During the tests below
preconditions need to be considered to get solid accuracy information
• The minimum testing time period: >= 15s
• The minimum number of pulses: 2
29.3 Manufacturer specific test mode
By sending a specific command, the meter can be set into a special test mode, for reducing the
test duration’s involved. In this test mode, the following parameters can be selected:
• Automatic increase of the decimal for all energy values to 3, 4
• Assignment of energy quantity to LED 1
• Increase the pulse constant in the LED 1 (Imp/kWh)
The test mode can be quit via the following events:
• command
• After configurable time (1 … 255min, up to 24h)
After exiting the test mode, the previous resolution of the energy registers is reused.
The test mode can be activated by the demand reset button too. In that case the settings of the
last test command are used.
29.4 Simple creep and anti-creep test
The shortened creep and anti-creep test can be shown on the LC display or the shared LED.
• Display
Arrow in display "ON": meter starts measuring
Arrow in display "OFF": no energy is being measured. This applies for all 4 possible
energy types (+P, -P, +Q, -Q) showing the energy direction
• LED
The "Anti Creep" function and "energy-proportional pulse output" are indicated for each
energy type by a shared LED. "Anti Creep" is signaled by a steady-light at the LED.
Energy-proportional pulses occur as optical "momentary pulses".
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