WattMaster WM-WCC3-TGD-01B - Manual (Page 153)

WCC III Technical Guide 3-39
WCC3.EXE SCREEN DESCRIPTIONS
Sensor Type
This is a choice fi eld for Analog types only. A list of available
choices will be displayed at the bottom of the screen:
Resistor+, RawCount, Thermistor+>
You may make your selection by pressing the until
the desired Analog Type has been selected and then pressing
.
Resistor+ is used to set up different types of thermistors.
WattMaster thermistors are 10K type 3 curve. You would enter
values on the screen to correspond to different values and type
curves of thermistors. Available inputs are 0 to 9999 ohms,
NOTE: The associated analog input jumper on the satellite
controller must also be set to “THERM” in order for this
screen to display the proper temperature value.
Pattern for Values Associated With This Input:
Specifi es where you would like the decimal point to appear in the
value displayed by the system. Because this is a “choice” fi eld,
a list of available choices will be displayed at the bottom of the
screen:
< x,xxx , xxx.x , xx.xx , x.xxx >
You may make your selection by pressing the
until the desired data pattern has been selected and then pressing
.
Resistor Bias:
This is the Bias resistor in the satellite. This is currently a 10 K
Ohm resistor and is soldered onto the satellite’s main circuit board.
This Bias resistor can be changed but will need to be specifi ed
when the satellite is ordered from WattMaster Controls.
Unit Offset:
There is an option to change the calibration of a thermistor sensor
(usually due to the position or location of the thermistor sensor) a
few Ohms plus or minus from the actual Ohms that the thermistor
sensor is actually reading. Acceptable values in this fi eld are
numerical with both positive and negative (+/-) values.
Analog Input Resistor+ Screen
Resistor to Ohms ratio: _______ / KOhm
This is the calibration for the scaling of the thermistor. There is
a value that is needed for correct thermistor Resistance to Ohms
calculations.
Units of Measure Message #: 16
A number is entered here that references a message on the On/Off
Units Messages Screen. For example, if units-of-measure message
#16 is “Ohms,” entering “16” will cause “Ohms” to be displayed
as the units-of-measure for the analog input.
Filter Time Constant: ____ Seconds
Specifi es the sampling rate of the analog input. This is used by the
satellites to “fi lter” (or smooth) the analog input signal. This can be
used on inputs that “jump around” to reduce sporadic load control.
Because this is a “choice” fi eld, the list of available choices will be
displayed at the bottom of the screen:
< 0, 1, 2, 4, 8, 16, 32, 64 >
You may make your selection by pressing the until
the desired fi lter time constant has been selected and then pressing
.
------ALARMS------
Controlled by:
Specifi es the binary value that selects the ON or OFF alarm limits.
When this value is OFF, the OFF alarm limits are selected; when it
is ON, the ON alarm limits are selected.
Alarm Type:
Specifi es the priority (or “importance”) level for any alarms
generated by this input. Alarm types range from one (highest
priority) to eight (lowest priority). The system displays and e-mails
higher priority alarms fi rst. (The fi rst fi ve alarm priorities (1-5)
have e-mail-out-on-alarm capabilities.)
Alarm Message # Low: ___ High: ___
Specifi es a pair of message numbers, one for LOW alarms and
the second for any HIGH alarms. These numbers are used by
the system to reference a message which is entered on the Alarm
Message Screen.