Operator's Manual
Issue 14
/
Mar 2016 / UMC0071
Mercury
iPS
©2016 Oxford Instruments NanoScience. All rights reserved.
Page
133
12.1.2 Gas-flow control using a motorised needle-valve
The auxiliary I/O board can control a motorised needle-valve, regulating the flow of cryogenic
fluid in a cryostat. There are two possible configurations:
Automatic needle valve
The needle valve is fitted to the main cryostat and controls the flow between the cryogen
reservoir and a variable-temperature insert.
Automatic gas flow siphon
The needle valve is fitted in an automated gas-flow siphon, linking the cryostat to a separate
cryogen storage-vessel.
The flow dynamics of these two arrangements are different.
See section
Error! Reference source not found.
for a full description of gas-flow control.
12.2 Installing an auxiliary I/O board
12.2 Installing an auxiliary I/O board
12.2.1 Fitting the board
An auxiliary I/O board can be fitted in any expansion slot (except GPIB slot).
The procedure for fitting a daughter board has already been described in section 7.2.
12.2.2 Basic check of board operation
1 Power up the
Mercury
iPS. If fitted correctly, the iPS will detect the board and may request
permission to use it.
2 Put the iPS in Local mode by tapping the local/remote toggle button on the iPS
Home
page.
3 Tap
Settings,
scroll to and tap the
Devices
tab.
4 Scroll down the list of devices and find the level meter board. Also, scroll to the right to read
the firmware version.
