| GRASS
EZM® ELECTRODE IMPEDANCE METER |
|
Model F-EZM4
Provide the ability to test applied electrodes at the patient site
before connection to the recording instrumentation. These units
accept the detachable ¨Grass 36-position expanded Mini Electrode
Boards and the older non-expanded 24-position Mini Electrode Boards.
The units operate from readily available 9-volt batteries.
|
| FEATURES
AND BENEFITS |
|
Dual
Displays
Digital LCD display indicates impedance of each electrode and
a LED for each electrode remains on when its impedance is higher
than the preselected value.
Speed
Only 36 seconds required to test 36 electrodes.
Accuracy
Digital LCD indicates impedance 100 ohm to 200 kohm (±5%) at 30
Hz of each individual electrode.
Safe
Very low electrode test current.
|
|
| Display |
| Digital
LCD Display |
|
Indicates
impedance 100 ohm to 200 kohm (±5%) at 30 Hz of each individual electrode.
The impedance of each electrode is measured against all other electrodes
in parallel. |
| "Go–No
Go" LED |
|
For each electrode remains on when its impedance is higher than the
preselected value. Preset impedance can be chosen as 5, 10, 20 or
30 kohms. |
| Electrode
Current |
|
Electrode current one microampere maximum. No electrode DC polarizing
current. |
| EXT
Electrode Terminals |
|
Two recessed male 1.5 mm diameter (0.059-inch) GRASS SAFELEAD®
connectors conforming to requirements of UL, CSA and FDA. Only recessed
1.5 mm diameter female electrode leads will provide proper connection. |
| Power |
| Battery |
|
9 volt battery - - - (DC) |
| Automatic
Power Shutoff |
|
After
approximately two minutes |
| Low
Battery Indicator |
|
Indicates when battery replacement is required |
| Physical
Size |
| Dimension |
|
6" W x 10" H x 2.375" D
(15.2 cm x 25.4 cm x 6.1 cm) |
| Weight |
|
2
lbs. 4 ozs. (1 kg) |
| Model
F-EZM4A |
|
Numeric
symbols for Model 12, 78 and 8 EEG/PSGs, Heritage PSG Digital
Systems |
|
Model
F-EZM4B |
|
International
Symbols for Model 12, 78, 8 and 9 EEG/PSGs and CTE amplifier systems.
Also has Numeric symbols for Model 9 only |
| Model
F-EZM4D |
|
International/Numeric
symbols for Comet EEG UPM-2 Universal Personality Module |
|
