Microtel Series 500 User Manual

Page 42

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35

IV.D.2.e.

Telephone Number List


The Telephone LIST value instructs the system which list to use when a specific alarm
has occurred. The Lists from all current channels in alarm are merged together and
calls are placed beginning with the highest priority list. The list value may be 00 to 15
with each list containing up to 16 telephone numbers from a directory of 64 total
telephone numbers. A special priority list 00 is used for alarm calls which must ignore
any programmed Call Period which would otherwise delay calls.

IV.D.2.f.

Analog Input Channel Condition


Not available as programmable field, the Condition value shows the ALARM or
NORMAL condition of each channel. This determination is made by the system,
through a comparison of the current Reading to the High and Low Setpoints.

IV.D.2.g.

Analog Input Channel Reading


Not available as a programmable field, the Reading shows the value of the Analog
Input, after the application of the Zero and Span values.

IV.D.2.h.

Analog Input Channel Units


The units of measure for any Analog Input Channel may be entered as a five character
alphanumeric label. This information provides helpful detail on the LCD panel display of
channel information, and is also useful when operating with the Printer or Modem
options. To program the Units field, highlight and SELECT it, and use the system
keyboard to edit the text. The default text for the Units field is UNITS.

IV.D.2.i.

Analog Input Channel Scaling -- Zero and Span


Each Analog channel may be programmed with individual zero and span scaling values.
To calibrate the Analog channel, first enter the Zero value - that is, the value of the
physical parameter being monitored when the current in the monitoring loop is 4 mA.
Each such entry may be signed, 4 or 5 integer value and should correlate to the unit of
measure for that channel. Select numbers for Zero and Span so that neither those two
numbers nor the resultant adjusted Analog Value exceed 32,768. Enter the values by
selecting those fields and entering digits in the same manner as with the numeric
entries. The numbers entered will presume a certain location of a decimal point which
must be consistent with the entries made for Span, High, Setpoint, and Low Setpoint.
The Decimal Value (see procedure below) may then be set to 1, 2, 3, or 4, to properly
format the Value for that channel. An Analog Channel Setup and Calibration Example
may be found in the appendix.

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