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Tucker-Davis Technologies PZ3, Руководство пользователя

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Tucker-Davis Technologies PZ3 Скачать руководство пользователя страница 11

System 3

7-75

PZ3 Low Impedance Amplifier

*Note: If longer cable lengths are required, contact TDT.

Power Requirements

2 Lithium Ion cells at 10 AmpHours each

Battery

Eight hours to charge both cells

Battery life between charges, per cell:

32 ch ~ 11 hrs

64 ch ~ 8 hrs

128 ch ~ 5 hrs

Charger

External 6 V, 3 A power supply

Indicator LEDs

Up to 128 status or clip warning, battery life, active battery bank

Input referred noise

See figures below

Fiber Optic Cable

5 meters standard, cable lengths up to 20 meters*

Содержание PZ3

Страница 1: ...de System Hardware A standard configuration for low sample rate low impedance recordings includes 1 5 mm TouchProof connectors for electrodes a PZ3 amplifier and an RZ2 base station The battery powered PZ3 digitizes and amplifies signals recorded from each of the electrode channels All digitized signals are sent via a single fiber optic connection to the RZ2 base station for further processing The...

Страница 2: ... reference Shared Differential Bank 1 and 2 Functional Diagram The PZ3 s impedance checking and a high voltage range features can be used in both true and shared differential modes It is also important to note that in the various modes of operation the RZ2 processor may use the alternate channels to report information such as impedance values or RMS This occurs at the software level on the RZ2 For...

Страница 3: ...ng custom connectors see Input Connectors on page 7 76 for pinout Note In Shared Differential mode no connection should be made to the indifferrent channels A 5 meter paired fiber optic cable is included to connect the preamp to the base station The connectors are color coded and keyed to ensure proper connections The PZ3 battery charger connects to the round female connector located on the back p...

Страница 4: ...or the status LEDs for each channel bank Three inputs are available on the macro for enabling disabling the LED clip status lights enabling Impedance mode for electrode channels and enabling Impedance mode for indifferent channels Under the Power Control tab are additional options that specify how the PZ3 channel banks are powered Powering Down the Channel Banks Channel banks may be powered down t...

Страница 5: ...ed number of channels to map and output The ability to enable disable the impedance measurement output PZ3 Circuit Example The following illustration shows how macros can be used to create a simple OpenEx acquisition and control circuit for the PZ3 The RZ2_Input_MC macro feeds the circuit with each digitally amplified signal acquired using the PZ3 amplifier The data is fed first through the PZ3_Ch...

Страница 6: ...ded signals are acquired in Shared or Individual differential mode Shared Differential In shared differential mode a single shared reference and a ground are used for each bank of eight recording channels Note In this mode no connection should be made to the alternate indifferent channels Use the LI CONN Z connector to ensure proper connections Enabling Shared Differential Operation To enable shar...

Страница 7: ... contact with a metal surface that isn t tied to the animal ground such as a lever press When contact is made a ground loop is formed that temporarily adds extra noise to the system Grounding this metal surface directly to the TDT hardware removes this ground loop at the cost of raising the overall noise floor a small amount A banana jack located on the back of the PZ3 directly to the right of the...

Страница 8: ...ode impedance is less than or equal to the target impedance or red when electrode impedance is greater than the target impedance value Impedance Checking For True Differential Mode Impedance values of either recording or alternate indifferent channels can be tested To toggle between and channel impedance measurements press the Display Mode button on the PZ3 front panel The status LED located below...

Страница 9: ...PZ3 Charging Indicators LEDs are also used for each bank to indicate which bank if any is charging These LEDs are found next to the Level LEDs by the headings A and B A green indicator denotes the battery bank is fully charged while a red indicator designates the bank is currently charging When the device is in operation charger is not connected the A and B LEDs are not lit An external battery pac...

Страница 10: ...Analog Input Channel 1 Analog Input Channel 1 Channel 2 RMS of Channel 1 Reference Channel 1 Channel 15 Analog Input Channel 8 Analog Input Channel 8 Channel 16 RMS of Channel 8 Reference Channel 8 Unmapped Channel Index Impedance Checking Shared Differential Individual Differential True Differential Channel 1 NA NA Channel 2 Impedance of Channel 1 Impedance of Channel 1 or Channel 15 NA NA Channe...

Страница 11: ...rs each Battery Eight hours to charge both cells Battery life between charges per cell 32 ch 11 hrs 64 ch 8 hrs 128 ch 5 hrs Charger External 6 V 3 A power supply Indicator LEDs Up to 128 status or clip warning battery life active battery bank Input referred noise See figures below Fiber Optic Cable 5 meters standard cable lengths up to 20 meters ...

Страница 12: ...No connections should be made to pin 5 while operating in True Differential mode Pin Name Description Pin Name Description 1 A1 Analog Input Channel 14 V Positive Voltage 1 5V 2 A1 Indifferent Analog Input Channel 15 GND Ground 3 A2 Analog Input Channel 16 GND 4 A2 Indifferent Analog Input Channel 17 V Negative Voltage 1 5V 5 Ref Shared Reference 18 HSD Headstage Detect 6 HSD Headstage Detect 19 H...

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