User's Manual

Operation: C1S Version
4-4 CENTRON Meter Technical Reference Guide
All current production resetters and resetters produced after June of 2001 were
built with the C2A upgrade and are labeled accordingly as shown in Figure 4.4
below. Although personality modules with the new EEPROM are only compatible
with the C2A version of the CENTRON resetter (ZRO-C2A), the older revisions of
the personality modules are also compatible with the ZRO-C2A.
Figure 4.4 Reverse Side of ZRO Resetter
LCD Display Function
The CENTRON LCD has been updated as of June 2003. All CENTRON C1S meters
built after this date will incorporate the new LCD. The following sections describe
both the new LCD and the old LCD. The information on the pre-June 2003 LCD is
provided for users who purchased meters prior to the change. This display is no
longer available for order.
Pre-June 2003 LCDs
The pre-June 2003 LCD module is shown in Figure 4.5. Two separate versions of
the LCD are available. Both versions may be configured for either four or five digits
and will roll over at 100,000 kWh. The LCD is automatically adjusted for contrast
over the operating temperature range.
Figure 4.5 Pre-June 2003 LCD