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48501 Milmont Drive • Fremont, CA 94538
Page 21
Power-up
The Terranova® 752A will perform a self-test and the fan will automatically start at power ON.
Each self-test step is initiated by a BEEP – if speaker is not disabled – in the following sequence:
1. All CHANNEL 1 display segments become illuminated
2. All CHANNEL 1 LED indicators (except HV ON/OFF and HIGH VOLT INTERLOCK IS
OPEN) become illuminated
3. Steps 1 and 2 repeat for CHANNEL 2
4. CHANNEL 1 CURRENT display reads DIP switch hexadecimal code (e.g. 0FC0)
CHANNEL 1 PRESSURE display reads the firmware version (e.g. 1.82)
CHANNEL 2 CURRENT display reads RS-485 address (e.g. 5)
CHANNEL 2 PRESSURE display reads the model number (e.g. 752A)
If self-test is successful, each channel will enter the standby mode. While on standby, the
respective HIGH VOLTAGE display will read OFF and the corresponding pressure unit LED will
become illuminated.
A RS-485 address will be output regardless of
selected communication standard
NOTE
Since 1976
