©Isothermal Technology
Page 16 of 61
914 millisKanner manual Iss. 1.00
If the software on the milliK is already running, restart it by cycling the power or pressing
the
Restart/Update Software
button on the
Instrument
screen. This initiates the
automatic discovery process so that the milliK can detect any millisKanners connected to
it and assign channel numbers. The milliK will disable Channel 2, since it is always used
as the expansion channel input.
With multiple millisKanners, the milliK assigns channel numbers 10 to 17 to the
multiplexer connected directly to it. It then assigns channels numbers 20-27 to the next
multiplexer and so on. This means that the channel marked 7 on the third millisKanner in
the ‘daisy-chain’ of RS232 connections will be assigned channel number 37. The red LED
(below the binding posts) will light when measurements are being made on that channel.
If you want to control the measurement system (milliK and millisKanners) from a PC,
connect the unused RS232 port on the millisKanner at the end of the ‘daisy-chain’ to a
PC using a null modem cable. You can still communicate with the milliK even though
there is no physical connection to it as the millisKanners will relay commands from the
PC to the milliK and will relay back responses from the milliK to the PC (see section 8 for
further details).
2.4
2.4
2.4
2.4
Connecting
Connecting
Connecting
Connecting millisKanner
millisKanner
millisKanner
millisKanners to
s to
s to
s to Other Instruments
Other Instruments
Other Instruments
Other Instruments
Although the millisKanner has been designed specifically to work with the milliK
Precision Thermometer, it can be used with any other compatible instrument. The only
requirement for compatibility is that the instrument must be able to accommodate the
series resistance of the millisKanner, which is 5
Ω
(maximum) in series with each line. The
switching devices are rated at 0.5A and 60V (across open contacts), so should be
compatible with most thermometry instruments. The millisKanner is designed to switch
