Operating & Maintenance Instructions
19
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14 PULSING
OUTPUT
14.1 Output
Configurations
An opto-isolated pulsing output can be provided as an option. The output is available via the
meter auxiliary terminals in the following configurations:
Single rate meter -
The output is connected to the meter's two auxiliary terminals and is
fully isolated.
Two rate meter -
This output is referenced to neutral and brought out to one auxiliary
terminal. The output is non-isolated.
14.2 Output
Characteristics
When the meter is in anti-creep mode the output is not active.
The pulse/kWh and pulse width is configured as indicated below.
Pulse width – nominal (ms)
10, 20, 30, 40, 50, 60, 80, 100, 120, 160, 200, 250 or equal mark-space (1)
Pulses/kWh 10
20
25
40
50
100
200
250
500
1000
Wh/pulse
(2)
100
50
40
25
20
10
5 4 2 1
Maximum voltage (Umax)
27V d.c.
Maximum current in On-state
27 mA
Minimum current in On-state
10 mA
Maximum current in Off-state
2 mA
1), (2) see below re: representation of consumption.
Note:
Care should be taken in selecting the combination of pulse width and pulses /kWh.
Avoid combinations that may give insufficient spacing between pulses at maximum load.
Pulsing Output
High Impedance
Low Impedance
High Impedance
Low Impedance
Energy = Pulse
consumed
(2)
value
Energy = Pulse
consumed
(2)
value
Set to equal Mark-Space
Pulse width (1)
Note: When configured for equal mark-space, each transition indicates the consumption
of the specified energy value.
The Pulse output meets the requirements of IEC 62053-31.
