°F/°C Selection
°F/°C Selection
°F/°C Selection
°F/°C Selection
°F/°C Selection
The TD-30 control is shipped from the factory
with the display set to °F. You can check this by
verifying that no decimal point is displayed. (The
°C display always includes a decimal point.)
To change the current setting, press the program-
ming button (recessed, upper hole next to display)
for more than 3 seconds. The current setting ºF or
ºC will be displayed. Each consecutive push of the
programming button will toggle the display back
and forth between the two settings. When the
programming button has been released for more
than 3 seconds, the last selection displayed will
become the new setting.
Operation
Operation
Operation
Operation
Operation
When first connecting the TD-30 to the SP con-
trol, the LCD screen should show "-188.8" for
approximately 3 seconds. If the LCD reads "---",
there is a data error and a bad cable is the likely
cause.
Functions
Displaying sensor temperature: The TD-30 con-
tinuously displays the SP control’s sensor tem-
perature, with no need to push or hold any buttons.
Displaying setpoint temperature: Press and hold
the upper pushbutton.
Displaying the highest (maximum) temperature
reached by the control's sensor since the last
clear: Press and hold the lower pushbutton.
Displaying the lowest (minimum) temperature
reached by the control's sensor since the last
clear: Press the lower pushbutton and then release
it. The minimum temperature will be displayed
for approximately 3 seconds and then the display
will automatically revert to reading the current
sensor temperature.
To "clear" the high/low (max/min) temperature
memory: Press and hold the lower pushbutton for
more than 3 seconds. The LCD screen will go
blank and then return, indicating that the memory
has been cleared. Both maximum and minimum
temperatures will be set to the current sensor
temperature.
To adjust the SP control setpoint (when the TD-
30 is mounted on the control): Use a 1/8" Allen
wrench (provided with the TD-30) through the
opening marked "setpoint access" and into the SP
control's setpoint knob.
Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting
Troubleshooting
There are no setup parameters to set or other
adjustments required for the TD-30 to operate
properly. You should be able to remove the TD-
30 from the box, plug it into an SP-30/30D/300
control and immediately display the sensor tem-
perature. If you have a problem, refer to the
section below.
No display or if the LCD screen reads "---":
Check that power is connected to the SP control
and that the SP control is operating properly. Next
check the wiring connection between the TD-30
and the SP control, an extension cable may be
miswired. Lastly, turn power off, wait 1 minute
and then reapply power. If there still is a problem,
call IE technical support.
Temperature display bounces between several
different values: Check that the sensor lines are
not near other electrical cabling, use shielded
sensor wire if necessary.
TD-30 displays erroneous readings: Check that
the sensor is making good thermal contact with
whatever is being measured and that the sensor is
insulated from ambient temperatures. If the sen-
sor is in a wet environment or in constantly
condensing humidity, moisture may enter the
sensor body and result in errors, over time. If this
is the case, replace the sensor. As a last resort,
unwire the sensor from the SP control, measure
the resistance with an ohmmeter and lookup the
corresponding temperature on an IE “resistance
vs. temperature” chart (see back). This will allow
you to determine whether the sensor or the TD-30
is causing the error. If it is the TD-30, then return
the unit to IE for repair.
TD-30 reads "ERR": There is a short or open
condition on the SP's temperature sensor. Check
the condition of the wire run and the sensor with
an ohmmeter
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