Vertiv Alber Cellcorder CRT-400 User Manual page 123

Using Diagnostics
Protection Circuit
•
1 Over Voltage
•
2 Reverse Polarity.
Both choices necessitate lead connection and further directions on the LCD window.
Modem (If Installed
Use the down arrow to view the next diagnostics options. Reset modem by pressing 1. )
Buzzer
Tests the buzzer by selecting 2. The CRT provides an audible feedback for keystrokes and alarm
conditions. To continue diagnostics, select Continue/F1.
Fan
Test the Cellcorder's fan by selecting 3. To stop the fan diagnostic and continue on, select Continue/F1.
Temperature Sensors
Temp. Sensors/press 4 and the LCD displays temperatures of the CRT–400 circuit board; Load
Temperature and regulator Ambient Temperature. When the load temperature rises due to continual
testing, the fan turns on. If the load temperature goes too high, testing circuitry is disabled and a
warning appears.
Load And Ambient Temperature
To do further diagnostic tests select Cancel/F3.
590-2099-501A/SL-29414/4200-070 17- 4 Revision 4