Test Mode; Device Diagnostics - Satec Expertmeter EM720 Operation Manual

Chapter 2 Operating the EM720

TEST Mode

Device Diagnostics

EM720 Power Quality and Revenue Meter
The LED pulse rate in NORMAL mode is indicated on the
meter nameplate.
The LED pulse rate in TEST mode is user-programmable
from 0.01 to 0.25 Wh/imp, or from 100,000 to 4,000
imp/kWh. The factory set test LED pulse rate is 0.01
Wh/imp, or 10,000 imp/kWh.
See Device Options and Mode Control
to change the LED pulse rate in your meter.
The EM720 can run in NORMAL or in TEST mode.
TEST mode is intended for testing the device energy
measurement accuracy.
In TEST mode, the front pulse LED indicators flash at a
programmable rate and the billing data display shows
separate test kWh and kvarh energy register readings with
an extended 0.001 kWh resolution.
Billing energy accumulators are not affected by TEST
mode, and setpoints operation, fault and power quality
recorders are stopped, while all instrumentation data is
still available.
See D evice Options and Mode Control
1
to put your meter in TEST mode and to change the test
LED pulse rate.
Device diagnostic messages may appear as a result of the
EM720 built-in diagnostic tests performed during start-up
and device operation.
A blinking diagnostics indicator is shown on the display
whenever there are diagnostic messages. See
Indicators in Chapter 3 for information on diagnostics
indicators. See Device Diagnostics Display
how to inspect the meter diagnostics messages from the
display.
The device diagnostics status is stored in a non-volatile
register, which may be inspected and cleared from the
meter display, via the supplemental PAS software, or from
a user application. See
Diagnostics in Chapter 6 on how to clear the device
diagnostics status in your meter.
All diagnostic events with time stamps are also recorded in
the meter Event log and can be inspected via PAS (see
Retrieving Recorded Files
In the event of a device fault, check the fault reason and
clear the device diagnostics. See
in Appendix G for the list of diagnostic messages and their
meanings. In the event of a time fault, update the device
in Chapter 5 on how
in Chapter 5 on how
in Chapter 3 on
Viewing and Clearing Device
in Chapter 7).
Device Diagnostic Codes
TEST Mode
Status
15