Meter Configurations; Meter Accuracy; Meter Case - Elster A1100 Operating & Maintenance Instructions

6.4

Meter Configurations

LCD Meter
Single rate, kWh
Single rate, kWh import plus reverse (power flow insensitive)
Single rate, kWh with separate import and export registers
Two rate, kWh import
Two rate, kWh import plus reverse (power flow insensitive)
Two rate, kWh with separate import and export registers
Stepper Register Meter
Single rate, kWh import
Single rate, kWh import plus reverse (power flow insensitive)
6.5

Meter Accuracy

The A1100 meter measures active energy, in accordance with the requirements of EN 61036:1996
(plus amendment 1:2000) for indoor kWh meters of protective Class II and accuracy Class 1 or Class 2.
Typical accuracy curves are shown in Figure 4.
The meter's temperature coefficient is such that the error variation over the whole operating range is
well within the accuracy class.
The design of the meter ensures life long stability. There are no on-site adjustments.
6.6

Meter Case

The meter is supplied with an extended terminal cover. A terminal cover with a cut-out is available
as an option (See Figure 6). The terminal arrangements are shown in Figure 5 and Figure 5A.
The case is double insulated to protective Class II.
The case provides an ingress protection rating of IP53 in accordance with IEC 60529:1989.
The base is light beige coloured polycarbonate.
A separate phenolic terminal block conforms to DIN 43857 Part 2 and 4.
The terminal cover is moulded in light beige coloured polycarbonate.
The main cover is moulded in tinted, clear polycarbonate.
Figure 6 illustrates the outline and fixing dimensions.
The main cover is secured by two sealable screws. Two separate sealable screws secure the terminal
cover.
Operating & Maintenance Instructions
7