The Interface Solution Experts
13
SPA
Site-Programmable RTD &
Thermocouple Limit Alarm Trips
Use the arrow buttons to toggle the
display, turning RJC ON or OFF, and press
SELECT.
5. Skip to step 10.
6. If an RTD was selected in step 3, the next
screen displayed may offer selections for a
resistance range, “XXXX OHMS”.
If a direct ohms source (
Ω
) was selected
as sensor type, skip to step 7.
Note that some RTD selections (from
step 3) automatically default to a standard
range, and where this occurs, the next
screen displayed will be the selection of
the wiring configuration to be used, “# OF
WIRES”. If “# OF WIRES” is displayed
after selecting sensor type in step 3, go
directly to step 7.
From the “XXXX OHMS” screen, use
the arrow buttons to scroll through the
available ranges. Choose the desired
range by pressing SELECT, which brings
up the “# OF WIRES” screen.
7. From “# OF WIRES” use the arrow buttons
to choose the type of RTD sensor to be
used, or the number of RTD sensors to be
used. When the display shows the setup
desired, press SELECT.
8. If a single sensor (2-, 3-, or 4-wire)
selection was made in step 7, skip to step
10.
9. If “DUAL 2W” or “DUAL 3W” was selected
in step 7, the next display allows you to
choose between differential or averaged
inputs. Use the arrow buttons to choose
the desired setup and press SELECT.
10. The next display is the menu for
the selection of functional options,
”CONF OPTS”. To skip the rest of the
configuration menus and return to the
display of the measured input value, press
the up arrow button 2 times (to “CONF
EXIT”), and press SELECT.
Configure Sensor
In the TPRG, if the security jumper is not installed
(see Figure 2), the password sub-menu is bypassed,
and the Configure Sensor menu is accessed when
SELECT is pressed from the display of the measured
input value. Figure 7 shows the Configure Sensor
menu.
The Configure Sensor menu sets:
• RTD, TC or mV, or
Ω
• Range (for
Ω
or RTD)
• # of input wires (for RTD or
Ω
)
• Reference Junction Compensation (RJC) enable/
disable, and dual sensor input differential or
averaging
To configure the sensor of the TPRG SPA:
1. Press SELECT from the “CONF SENS”
display of the Main Menu (see Figure 5).
2. Use the up or down arrow buttons to scroll
through the options for sensor/inputs.
There are several types of RTDs and
Thermocouples, as well as direct millivolt
source and resistance inputs available.
The default display for this menu is always
the last setting. For example, if a J-type
thermocouple was selected as the sensor
type last, “TC J” will be displayed when this
menu is accessed.
3. When the display shows the type of sensor
to be used with the SPA, press SELECT.
4. If an RTD or direct resistance source was
selected in step 3, skip to step 6.
If a thermocouple or millivolt source
was selected in step 3, the next screen
will be the choice of reference junction
compensation ON or OFF.
