User's Manual

Operation: C1SD, C1ST, and C1SL Versions

5-4 CENTRON Meter Technical Reference Guide

Figure 5.3 Test Mode

Refer to the PC-PRO+ documentation for information on selecting the Test mode

using a programming device. A programmable “Time-Out Length” from 1-to-99

minutes is available. After the programmed Time-Out Length has ended, the

initialized whenever the Demand Reset button is pressed.

The magnetic reed switch, when activated, advances the Test mode display to the

next quantity. Calculations performed in Test mode are performed in the same

manner and based on the same program parameters as in Normal mode with the

exception of interval (subinterval) length. Test mode interval length and the

number of subintervals are specified independently for Test mode. The results are

displayed according to the display configuration selected when the register is

programmed. To exit the Test mode and return to the Normal mode, do one of the

following:

• De-energize the meter.

• Push the Test mode button.

• Wait for the selected Test mode time-out to occur.

Calculated values performed in Test mode are not added to previous billing values

or stored for retrieval. After exiting Test mode, all billing data previously

transferred to nonvolatile memory is retrieved, an End of Interval (EOI) is

initiated, and a new demand interval begins.

Any time-dependent events such as rate switches, self-read, or daylight savings

time that occur while the meter is in Test mode are performed when the Test mode

is exited.

Low Power Mode

The demand, TOU, and load profile modules are shipped from the factory in low

power mode unless factory programming is specified at time of order. This mode

consists of a default program and minimizes drain on the battery. The user can

place the meter in low power mode by performing a three button reset or by

programming the meter with the programming software as a demand-only meter.

While the module is on battery carryover, the display will show “on battry” while

the power is off. This can be observed by viewing the display at an angle at close

range.

Test Mode Switch