NINOX 640 II/USER MANUAL/09-20/REV1.1
7. CHILLER SETUP & LIQUID COOLING (IF APPLICABLE)
This section discusses setting up the chiller if using the liquid cooling. The use of liquid
cooling is not essential with the camera. In most situations, the use of solely the fan should
be able to reach the sensor cooling spec of -15
ͦ
C.
7.1 Liquid Cooling Requirement
There is a maximum delta of roughly 40
ͦ
C between the PCB and sensor temperature.
Therefore, in situations where imaging in higher ambient temperatures, the PCB temperature
may rise too high for the TEC to be able to cool the sensor to -15
ͦ
C. This is where liquid
cooling would be required, as liquid cooling dissipates heat away from the device more
effectively than the fan. The PCB temperature would therefore stay more stable at a lower
temperature, allowing the TEC to reach the -15
ͦ
C set point.
7.2 Connecting the Camera to the Chiller
Raptor uses a chiller from Thermotek, the T257P Precision Chiller. If the Thermotek chiller
has been purchased from Raptor, the full chiller user manual will be included. Raptor
recommends referring to this manual for full instruction and precautions to take when using
the chiller. Raptor can also provide the T257P Precision Chiller datasheet and user manual if
required. The instructions to set up the chiller are as follows:
1. Connect the T257P chiller to the Falcon III using the tubing provided. You will hear a click
which indicates a solid connection. The polarity of the tubing connections does not matter.
2. Keep the chiller horizontal and on a level surface.
3. Make sure there is a minimum 12” clearance and free path for flow of air entry and exit at
the left side and right side of the T257P chiller prior to operation.
4. Remove the reservoir cap and add coolant to the reservoir until the fluid reaches the
bottom of the neck. Please refer to section 6.3 for recommended coolants.
5. Close the cap securely to the reservoir. Make sure not to overfill the reservoir.
6. Install the appropriate end of the power cord into the unit and connect to the mains
electricity.
If using another chiller model, please refer to it’s manual for start-up instructions.
7.3 Recommended Coolants for the Chiller
The recommended coolants are:
Option 1:
Distilled Water
Option 2:
95% distilled water and 5% isopropyl alcohol mixture prevents bio growth.
Option 3:
80% distilled water and 20% inhibited Glycol mixture for set temperatures below
5
ͦ
C.
Raptor recommends using option 3. If purchasing the Thermotek model from Raptor or using
a demo kit provided by Raptor, there will be inhibited Glycol mixture provided to mix with
water.
