Environmental Sensing

The telescope and instrument environments will be monitored to avoid overheating, condensation, and to control thermal flexure.

Potential conditions and status items to monitor:

1.

Thermal

• Coolant supply temp.
• Coolant return temp.
• Dewar level
• Dome ambient temp.
• Dome relative humidity
• Instrument ambient temp.
• Instrument relative humidity
• CCD crate temp.
• Motion controller rack temp.
• TV controller temps.
• Structure temp. (XX locations)

2.

Observatory Services

• Air supply pressure
• Power supply voltage
• Coolant supply pressure
• Coolant supply flow

3.

Instrument Status

• CCD crate fan on/off
• Motion controller rack fan on/off
• Ion pump
• Lamp name
• Lamp on/off
• TV camera on/off (3)
• TV controller fan on/off (3)