Gasboy Atlas Start-up - Manual (Page 119)

MDE-4334D Atlas™ Start-up and Service Manual · July 2013 Page 5-59
Heater Electronic and Electrical Components
Figure 5-53: Diagnostic LEDs on Coriolis Meter Interface Board
The functions of Coriolis Interface PCA are as follows:
• Provides +24 VDC power to the Coriolis Meter.
• Provides +5 VDC power to the Temperature Control PCA (M06783A001).
• Provides an interface to the Pump Freeze Sensor and sends signals to the CPU, if the unit
is frozen.
• Provides Coriolis Pulser data to the CPU.
• Provides the following diagnostic data:
- If CR1 LED is On, it indicates that +24 VDC power supply is enabled.
- If CR2 LED is On, it indicates that the Coriolis Meter for Side B is enabled (not used on
Commercial units).
- If CR3 LED is On, it indicates that the Coriolis Meter for Side A is enabled.
- If CR4 LED is On, it indicates that +5 VDC power supply is enabled.
- If CR5 LED is On, it indicates that the pump is frozen.