VA-10 - Voltammetry/Amperometry

VA-10 – Voltammetry/Amperometry

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Amplifier for Voltammetry and Amperometry

Features

Features:

Optional frequency booster for recording very fast signals
Filter settings from 20 Hz to 20 kHz in sixteen steps, 8-pole Bessel filter (1-pole or 4-pole filter on request)
3-electrode headstage for a floating command potential available
Gain settings from 0.5 to 50 mV / pA in seven steps (can be customised)
Precise built-in voltage source for DC amperometry (+/- 1000 mV standard, +/- 2000 mV optional)
Low noise, works in picoampere range
Ideally suited for recordings from single cells
Can be operated with external waveforms for cyclic voltammetry
Telegraph outputs for easy interfacing to data acquisition systems
Applications:
- Allows simultaneous electrophysiological recordings during voltammetric or amperometric investigations using headstages with differential inputs
- Can be used in scaning electrochemical microscopy
- Also suitable for lipid bilayer recordings
- In-vivo headstages available

Use with 5 µm carbon fiber electrodes (ALA-CFE-2)

Part no.	Description
VA-10X-8	Amplifier for voltammetry and amperometry with 8-pole BESSEL filter
VA-10-FB	Frequency Booster for enhancement of the bandwidth
VA-HS3	Differential (3-Electrode) headstage for VA-10 amplifier
VA-CFE	Carbon Fiber electrodes, 5 µm diameter, using the Anodic Electrophoretic Deposition of Paint (EDP) method
VA-CFE-H-BNC	CFE holder for headstages with BNC connector
VA-CFE-H-AXU	CFE holder for AXON amplifier

HEADSTAGE	Input voltage range: ±1200 mV Operating voltage: ±12 V Enclosure: Size: 40 x 70 x 20 mm, driven shield (COMMAND potential) Mounting plate: 50 x 70 mm, not conducting Electrode connector:driven shield (COMMAND potential) Ground connector: 1 mm connector (black) Driven shield output: 1 mm connector (red) Input resistance: >10¹³ Ω Current range: ±20 nA Feedback resistor: 500 MΩ (other values on request)
OUTPUTS	Impedance: 250 Ω FILTERED: BNC connector, sensitivity selectable with GAIN switch, FILTERED with LP Bessel FILTER UNFILTERED: BNC connector, sensitivity selectable with GAIN switch
INPUTS	Resistance: 1 MΩ
VOLTAGE SOURCE	COMMAND VOLTAGE set by 10-turn potentiometer, range: (1000 mV, polarity selectable with polarity switch (+, 0, -), display XXXX mV COMMAND VOLTAGE: INPUT BNC connector, sensitivity: /10, also displayed
LP FILTER	8-pole Bessel FILTER 16 corner frequencies: 20, 50, 100, 200, 300 500, 700, 1k, 1.3k, 2k, 3k, 5k, 8k, 10k, 13k, 20k Hz. (other values on request)
NOISE	<1 pA
GAIN	7-position rotary switch (x0.5, x1, x2.5, x5, x10, x25, x50 mV / pA) (other values on request)
POWER REQUIREMENTS	115/230 V AC, 60/50 Hz, fuse 0.4/0.2 A, slow.
DIMENSIONS	19″ rackmount cabinet, 19″ (483 mm), 10″ (250 mm), 3.5″ (88 mm)

Manuals	VA-10X manual
Brochure	VA-10X brochure

Features

Features:

Optional frequency booster for recording very fast signals
Filter settings from 20 Hz to 20 kHz in sixteen steps, 8-pole Bessel filter (1-pole or 4-pole filter on request)
3-electrode headstage for a floating command potential available
Gain settings from 0.5 to 50 mV / pA in seven steps (can be customised)
Precise built-in voltage source for DC amperometry (+/- 1000 mV standard, +/- 2000 mV optional)
Low noise, works in picoampere range
Ideally suited for recordings from single cells
Can be operated with external waveforms for cyclic voltammetry
Telegraph outputs for easy interfacing to data acquisition systems
Applications:
- Allows simultaneous electrophysiological recordings during voltammetric or amperometric investigations using headstages with differential inputs
- Can be used in scaning electrochemical microscopy
- Also suitable for lipid bilayer recordings
- In-vivo headstages available

Use with 5 µm carbon fiber electrodes (ALA-CFE-2)

Ordering

Part no.	Description
VA-10X-8	Amplifier for voltammetry and amperometry with 8-pole BESSEL filter
VA-10-FB	Frequency Booster for enhancement of the bandwidth
VA-HS3	Differential (3-Electrode) headstage for VA-10 amplifier
VA-CFE	Carbon Fiber electrodes, 5 µm diameter, using the Anodic Electrophoretic Deposition of Paint (EDP) method
VA-CFE-H-BNC	CFE holder for headstages with BNC connector
VA-CFE-H-AXU	CFE holder for AXON amplifier

Technical Data

HEADSTAGE	Input voltage range: ±1200 mV Operating voltage: ±12 V Enclosure: Size: 40 x 70 x 20 mm, driven shield (COMMAND potential) Mounting plate: 50 x 70 mm, not conducting Electrode connector:driven shield (COMMAND potential) Ground connector: 1 mm connector (black) Driven shield output: 1 mm connector (red) Input resistance: >10¹³ Ω Current range: ±20 nA Feedback resistor: 500 MΩ (other values on request)
OUTPUTS	Impedance: 250 Ω FILTERED: BNC connector, sensitivity selectable with GAIN switch, FILTERED with LP Bessel FILTER UNFILTERED: BNC connector, sensitivity selectable with GAIN switch
INPUTS	Resistance: 1 MΩ
VOLTAGE SOURCE	COMMAND VOLTAGE set by 10-turn potentiometer, range: (1000 mV, polarity selectable with polarity switch (+, 0, -), display XXXX mV COMMAND VOLTAGE: INPUT BNC connector, sensitivity: /10, also displayed
LP FILTER	8-pole Bessel FILTER 16 corner frequencies: 20, 50, 100, 200, 300 500, 700, 1k, 1.3k, 2k, 3k, 5k, 8k, 10k, 13k, 20k Hz. (other values on request)
NOISE	<1 pA
GAIN	7-position rotary switch (x0.5, x1, x2.5, x5, x10, x25, x50 mV / pA) (other values on request)
POWER REQUIREMENTS	115/230 V AC, 60/50 Hz, fuse 0.4/0.2 A, slow.
DIMENSIONS	19″ rackmount cabinet, 19″ (483 mm), 10″ (250 mm), 3.5″ (88 mm)