Coolcube Coolant Circulator - Princeton Instruments PhotonMAX System Manual

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Cooling: Dark current is reduced in PhotonMAX camera systems through
thermoelectric cooling of the CCD arrays. Cooling by this method uses a four-stage
Peltier cooler in combination with air-circulation or circulating coolant. To prevent
condensation and contamination from occurring, cameras cooled this way are evacuated.
Due to CCD size/packaging differences, the lowest achievable temperature can vary from
one PhotonMAX model to the next. Please refer to the specific system's data sheet for
cooling performance.
The camera needs to have at least two (2) inches (50 mm) clearance around the vented
covers. The ambient temperature needs to be less than 25ºC (above this temperature, the
CCD temperature can begin to degrade). If the camera is inside an enclosure, the
enclosure needs to have unrestricted air flow to an open environment.
Fan: Air-cooled cameras contain an internal fan. Its purpose is:
•
•
An internal Peltier device directly cools the cold finger on which the CCD is mounted.
Air drawn into the camera through the back slots on the side panels removes the heat
produced by the Peltier device and then vents out through the front slots on the side
panels. The fan is always in operation and air-cooling of both the Peltier and the
internal electronics takes place continuously. The fan is designed for low-vibration
and does not adversely affect the image. For the fan to function properly, free
circulation must be maintained between the sides of the camera and the laboratory
atmosphere (see "Cooling" paragraphs above).
Connectors:
DATA: 20-pin, high-density connector for data
transfer.
I/O: DB26, high-density connector for input/output
control signals.
POWER: 5-pin, LEMO connector for camera
power.
Coolant Ports: Liquid-cooled cameras only.
Interchangeable inlet/outlet ports. Use only the
hoses and circulator shipped with your system.
Attaching any other hoses or circulator voids the
warranty.

CoolCUBE Coolant Circulator

Liquid-cooled PhotonMAX cameras provide a low vibration system for data acquisition.
Instead of using a fan to remove heat, these cameras incorporate a closed loop system of
circulating fluid. The CoolCUBE circulator unit provides the power to the camera and
continuously pumps the 50:50 mixture of room temperature (25ºC) water and ethylene
glycol. To prevent voiding the warranty, use only the circulator and hoses shipped with
your system.
PhotonMAX System Manual
to remove heat from the Peltier device that cools the CCD array and
to cool the electronics.
Version 1.B