User's Manual

Operation: C1SR Version
6-2 CENTRON Meter Technical Reference Guide
Physical Description
The C1SR personality module is constructed of a flame retardant printed circuit
board material which supports the discrete, surface-mounted, and integrated
circuit components. A microstrip etched on the circuit board serves as the RF
antenna. The C1SR personality module easily snaps into the meter module
mounting bracket. This module is then electronically attached to the metrology
board via a board to board connector. The following information is sent to the
personality module from the base metrology board:
Line voltage
Reference voltage
Energy flow direction
Energy pulse data
Line frequency
The C1SR contains contacts on the module board, located at the 12 o'clock
position behind the LCD, for resetting the energy register and tamper counters.
This can be accomplished with the ZRO-C2A Resetter.
The C1SR uses a unique module identification number, provided by Itron. This ID
number is contained in each message transmission and is used by the handheld
and billing system to determine meter identity and location. This ID number, which
is contained on a bar-coded label, is placed on the LCD housing directly above the
LCD display.
Registers
Display
The C1SR personality module is only available with a liquid crystal display (LCD).
The LCD is automatically adjusted for contrast over the operating temperature
range.
Figure 6.2 C1SR LCD
This module can be configured to display either four or five digits of energy
consumption and will rollover at 100,000 kWh for both self-contained (Form 1S, 2S,
12S, 25S) and transformer rated meters (3S, 4S). The self-contained meters can be
programmed to display normal kWh consumption (5X1 register configuration) or
tens of kWh consumption (4X10 register configuration). If the C1SR is
programmed for a 4x10 display, a “Mult by 10" label is placed on the module to the
left of the LCD display. Thus, the actual energy consumption is obtained by
multiplying the value on LCD display by 10.