South Bend, Indiana USA
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PT-SINGLE
INSTALLATION MANUAL | PART NO.
25166
REV
D
8
– On settings menus this pushbutton backs out of an
operation without changing anything.
– Energizes heater for system testing or troubleshooting.
Pressing this pushbutton for five seconds while on
the Edit Settings screen will energize the heater for
five minutes. Pressing the pushbutton again will de-
energize the heater and resume normal operation.
The user can change screens while the test is in
progress.
MAIN SCREENS
There are five main screens that can be accessed using
the UP and DOWN pushbuttons. These screens cycle in
the sequence shown in Figure 9; pressing UP or DOWN
five times returns you to your starting position.
Note:
After initial use the default display screen when
left alone will be the last main screen that was displayed
for more than five seconds.
Triple Display screen
– Displays the three data fields
(Temperature, Load Current, Ground Fault Current) are
all shown on this same screen. If there is an alarm, the
field description will alternate with an alarm notification.
In most cases, the alarm on this screen will identify
what the alarm is, except for a Load Current alarm. To
determine whether the Load Current alarm is a high or
low Load Current alarm you must view the Load Current
Display screen.
Note:
If the heater relay is off, the ground fault number
is NOT shown.
Temperature Display screen
– Indicates the current
temperature in Fahrenheit or Celsius. This screen will also
show any associated alarm conditions.
Load Current Display screen
– Indicates the load current
to the heaters in amps. This screen will also show any
associated alarm conditions.
Ground–Fault Current Display screen
– Indicates the
ground fault current in milliamps. This screen will also
show any associated alarm conditions.
Note:
If the heater relay is off, NO NUMBER IS SHOWN.
Note:
In any of the main sequence screens, pressing
the TEST/RESET BACK pushbutton will clear all latched
alarms and perform a self–test, including a ground fault
current test. The “Passed” or “Failed” result of the self–
test is then displayed, then returns to the default screen.
Settings screen
– Allows access to all the parameter
settings. The top line will say “Edit Settings” or “View
Settings”, depending on whether the Panel Lockout
function is set with the internal DIP switch (see page 7).
With Panel Lockout enabled, most configuration settings
can only be viewed, not edited. The only exception is the
choice of Celsius or Fahrenheit temperature units.
Note:
The GPT reads the Lock DIP switch position when
the Settings screen is entered. If the switch is changed,
you need to re-enter the Settings screen.
FIGURE 9. Main screen sequence
