8
Note1: Loosen/tighten both screws little by little at the same time. When the screws are sufficiently loosened/tightened, they can
be completely loosened/tightened one by one. If only one screw is completely tightened/loosened without
tightening/loosening the other screw, the second screw cannot be inserted perpendicular to the hole.
Note2: Do not touch the contact pin of the MED Connector with bare hands. If sebum of the hand attaches to the pin, contact
impedance between the contact pin and the terminal of the MED Probe will increase and may cause noise. Pay attention
so as not to spill liquid (saline, medium etc.) on the MED Probe after it is set. Prevent liquids from coming into contact
with the contact pin.
3.4.6. Noise check
Double-click the MED16 icon on the desktop to launch the control software “MED16”. Select Spontaneous from EASY SETTINGS
and click the replay button.
Data acquisition will start 5 seconds later and the baseline noise will be displayed. The ideal baseline noise level is about ±8 µV
peak-to-peak. When baseline noise shows a normal pattern, the setup ends. For the details of operating the MED16 refer to p. 9
“Data acquisition by the control software” Refer to the relevant application note for the preparation of specimens used for the
experiment.
Normal baseline noise.
3.4.7. Maintenance of the MED Connector
A printed circuit board onto which 68 contact pins contacting the terminal of the MED probe are soldered is fixed by screws to
the top unit of the MED Connector. Spring-loaded pins are used as contact pins and keeping the surface of the pins clean is
important for the maintenance of the MED Connector. If any abnormal noise is found at a particular electrode and noise persists
on that electrode even when the orientation of the MED Probe is changed, the noise may be caused by deformation (crushing)
due to the wear of the contact pins associated with everyday use or dust or sebum on the contact pins. In the latter case, the
noise may be reduced by wiping the contact pin by pushing the eyeglass cleaner cloth on the pin. Do not use ethanol because
the contact pin is filled with lubricant for the spring. The printed circuit board needs to be replaced (paid repair) in the case of
malfunction due to wear of the contact pin associated with everyday use or malfunction due to salt (perfusion solution or media)
attached on the pin.
Summary of Contents for MED64-Entry
Page 1: ...MED64 Entry Manual ...
