The iris mounts have 2 superimposed constellations of 3mm mounting holes on them that correspond to those of the S2 detector, however the 85x85 square is missing one hole and the 110x40 rectangle is rotated by 45°. Either constellation may be used. Fixing is intended with M3x16 bolts into 10mm standoffs used to attach the detector to its mount.
Electrical connection is by a 5 pin DuPont connector. A feedthrough with flying tail ribbon cable inside and M12 5 pin A-coded industrial sensor connector outside for each iris is supplied that should fin in the same flange as the cooling pipes. The connection between the ribbon and the actuator is to be made with the red coded wire on the ribbon to the yellow wire on the actuator such that the visible metallic portion on the pins is visible on the same side of both the male and female connectors when matted.
The control box needs to be mounted outside the chamber and the cables connected to the feedthroughs.
Power is supplied from the 12v PSU provided.
Twiddle knob to make iris open and close...
Notes:
- When handling the irises it is advisable to leave them in the open position.
- Don’t get grease on the irises or they will jam up and the actuator is strong enough to destroy them.
- The actuators contain a small quantity of grease, if this turns out to be an issue with the vacuum I will strip them down and degrease them.
- The controllers are “tuned” to the actuators so try not to muddle them up. (U and D)
- When not in use I would suggest removing power from them as they will potentially radiate some RF noise and just made your signals noisier.
- Datasheet for controller https://s3.amazonaws.com/actuonix/Actuonix+LAC+Datasheet.pdf
- They have been roughly set so that closed is a 20mmm orifice. If you need to adjust them open the control box and twiddle the pot next to the one next to the USB port (P2 right if you look at the data sheet). Cycle the power and to open and close it again, repeat until the desired orifice is achieved.
- Pins 1, 4 and 5 of X2 are the feedback potentiometer for the actuators so if you want to know where the actuators are (you think they may have jammed etc.) you can simply measure the voltage between 1 and 4 with the power on or the resistance with the power off
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