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Operation Manual
I-Tech HD Series Power Amplifi ers
page 20
4 Advanced Operation
Thermal Errors: This screen lets you view thermal errors without using the
control software. A thermal error occurs if the amplifi er thermal % exceeded
the value set with the Thermal slider on the Amplifi er Settings page in System
Architect.
When an error occurs, the count displayed in this screen is incremented, and
the operat ing time since the error is displayed.
To clear this screen, press and release an Encoder. The display will prompt you
to confi rm your choice by pressing and holding the Encoder.
NOTE: You must use System Architect to enable error reporting and set its
limits.
Amp Output Clip Errors: A clip error occurs if the number of clip events in
the amplifi er output exceeds the value set with the Count slider (within the
time set by the Time slider) on the Amplifi er Settings page in System Architect.
Load Monitoring: Press an Encoder knob to turn speaker load monitoring on
or off for either channel. When load monitoring is on, the load connected to the
amplifi er output is displayed. The text below the reported load indicates
whether the value is within the limits set in Sys tem Architect. OFF means load
monitoring is off. LOW means the load is below limits. HIGH means the load is
above limits. NORMAL means the load is within limits.
OFF
Load Monitoring
Load Monitoring
Normal
OFF
Normal
Thermal %: This indicates the amplifi er temperature in percent, where 100%
is the maximum allowable temperature. If Thermal % reaches 100%, the
amplifi er is out of thermal headroom and has shut down (or will very soon).
Measurements are shown for Channel 1, Channel 2, and the power supply.
AC Voltage: This shows the AC line voltage at the AC cord inlet to the
amplifi er.
0
Thermal %
Thermal %
Ch1
PS
0
0
Ch2
Thermal Temp deg. C: This screen displays the temperature in degrees
Celsius of the Ch. 1 output devices, Ch. 2 output devices, and the power
supply.
23
Thermal Temp deg. C
Thermal Temp deg. C
Ch1
PS
23
Ch2
36
120 VAC
AC Voltage
AC Voltage
Operating Time: This displays the number of hours the amplifi er has been
on since manufacture. Like a car’s odometer, it shows the total amount of
operating hours and cannot be reset. All I-Tech HD amplifi ers come with a
variable amount of operating time on them due to burn-in and testing before
shipping.
108.8 Hrs
Operating Time
Operating Time
Watts Output: This displays the slow-averaged continuous output power of
each channel in watts.
Watts Output
Watts Output
Ch1
Ch1
Ch2
Ch2
0.0 0.0
4.2.5. ALERT MENU
To access this menu from the Attenuation screen, press an Encoder knob, then
press Prev three times. This menu displays a wide variety of errors in the
signal, amplifi er, or load. Push an Encoder knob to see the selections in the
Alert Menu.
Alert Menu
Alert Menu
Alert Menu
Push knob for alerts
0
Amp Output Clip Errors
Amp Output Clip Errors
0.0 Hrs
0.0 Hrs
0.0 Hrs
0.0 Hrs
0
Last
Last
0
Analog Input Clip Errors
Analog Input Clip Errors
0.0 Hrs
0.0 Hrs
0.0 Hrs
0.0 Hrs
0
Last
Last
0
Thermal Errors
Thermal Errors
0.0 Hrs
0.0 Hrs
0.0 Hrs
0.0 Hrs
0
Last
Last
Analog Input Clip Errors: A clip error occurs if the number of clip events in
the analog input exceeds the value set with the Count slider (within the time
set by the Time slider) on the Amplifi er Settings page in System Architect.
When an error occurs, the count displayed in this screen is incremented, and
the operat ing time since the error is displayed.
To clear this screen, press and release an Encoder. The display will prompt you
to confi rm your choice by pressing and holding the Encoder.
NOTE: You must use System Architect to enable error reporting and set its
limits.
Exit: To exit the Monitor Menu and go to the Attenuation screen, press Menu/
Exit once.
4.2.4 MONITOR MENU
This menu lets you monitor the status of the amplifi er. Starting from the
Attenuation Screen, press Menu, then press Prev four times. Or, starting from
the Advanced Menu screen, press Next to go to the Monitor Menu screen. Then
press an Encoder knob to access the selections in this menu.
Monitor Menu
Monitor Menu
Monitor Menu
Push knob for mon. menu
When an error occurs, the count displayed in this screen is incremented, and
the operat ing time since the error is displayed.
To clear this screen, press and release an Encoder. The display will prompt you
to confi rm your choice by pressing and holding the Encoder.