TECHNICAL DESCRIPTION Kamstrup 162M/382M
5512-1040 GB/05.2012/Rev. C1
15
3.2.6 Other registers
Other registers that include measurement and registration of data and events are e.g:
RTC
Meter status
Magnetic influence
Access registration (Tamper)
Voltage quality
Meter number
Special data
Pulse input
3.2.7 Meter status register
The meter status register consists of 8 digit number where each number can either “0” or “1”. Each digit indicates
the actual status of following possible event: (The sequence is from right to left)
- 1
st
Number: Is not in use
- 2
nd
Number: Indicates an error in EEPROM access or a data backup error
- 3
rd
Number: Indicates Magnetic detection
- 4
th
Number: Ram error
- 5
th
Number: ROM checksum error
- 6
th
Number: External alarm input (Only relevant if the functionality is enabled)
- 7
th
Number: Indicates tamper of the meter cover.
- 8
th
Number: Is not use
The status indicators are reset when the source to the indication disappears. Errors in digit number 2, 4 and 5 will
in most cases be permanent and requires the meter to be returned to Kamstrup.
In Figure 4 an example of the register shown in the display is illustrated.
L1
L2 L3
Figure 4: Meter status register indicates magnetic detection.
3.3 Time management
The meter has an internal real-time clock (RTC) with either battery or rechargeable backup unit (supercap).
3.3.1 Real-time clock (RTC)
The real-time clock (RTC) makes it possible to provide measured data with an accurate time stamp (typically
5ppm at 23C).
The real-time clock time stamps load profile and event values, changes tariff etc. In addition to the tariffs, it is
associated with a calendar.