44 PI-MAX/PI-MAX2 System Manual Version 5.F
Making the Coolant Circulator-Camera Connections
PI-MAX2 cameras do not use supplemental water cooling. However, PI-MAX cameras
have two coolant ports on the back panel for connection to a coolant circulator. The two
ports are identical; it does not matter which is used for inflow and which for outflow.
1. Do not use any coolant fittings other than those supplied by Princeton Instruments.
Although standard pipefittings are similar, in most cases they are not the same.
Forcing these fittings into the cooling block will permanently damage the threads.
2. Coolant should be no colder than +15°C to prevent condensation at 50% relative
humidity. Operating a PI-MAX camera with coolant at a colder temperature could
cause induced condensation in the electronics enclosure and possible catastrophic
damage to the camera. Damage resulting from this type of operation will void the
warranty.
3. Coolant can be water or it can be a 50:50 mixture of ethylene glycol and water, if the
coolant temperature is below the freezing point for water.
4. Take care that the coolant used is pH neutral. Acidic or alkaline coolant can damage
the camera fittings and internal cooling block through corrosion. Such damage could
be very expensive to repair.
1. Set up the coolant circulator according to the directions in the user manual for that
equipment. Do not apply power to the circulator until directed to do so.
2. Using 1/4", thin-wall plastic tubing, make the hose connections between the water ports
on the rear of the camera to the ports on the coolant circulator. The two water ports are
identical so either can be used for inflow. For best cooling performance, the tubing
should be no longer than necessary.
3. Using suitable clamps, secure the tubing at both ends. Barb-sleeve clamps (PI part
number 2518-0301) are provided. Make the hose connections between the circulator
and the camera.
Recommended Flow Rate and Fluid Pressure
Flow Rate: > 1 liter/minute. Users are advised to install a flow meter to monitor
the rate.
Fluid Pressure: 25 psig (maximum).
Entering the Default Camera System Parameters into WinX
(WinView/32, WinSpec/32, or WinXTest/32)
Software changes implemented in WinX version 2.15.9.6 affected the way in which
default parameters were entered for camera systems. Therefore, two sets of instructions
are included. Follow the instructions appropriate to the software version that you
installed. Note that these instructions assume that you have performed the computer
interface installation.
WinX Versions 2.5.19.6 and later
1. Make sure the ST-133 is connected to the host computer and that it is turned ON.
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