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 VF-4 4 Channel Buffer Amplifier
     

Featuring a quartet of high input impedance amplifiers with unity gain, low pass and all pass filter selection, and low-noise battery-powered operation. Useful where a quiet high-Z interface is required. Can be used to connect pH electrodes or ion selective electrodes to a data acquisition unit for recording pH or ion activity digitally.
     
 

 

SPECIFICATIONS

CHANNELS

4 channels, single-ended

INPUT RESISTANCE

>1012 Ohms

INPUT VOLTAGE

± 2.5 V maximum

BANDWIDTH

10 kHz (all pass position) - 150 Hz (low pass position)

VOLTAGE GAIN

Unity

OUTPUT IMPEDANCE

< 600 Ohms

OUTPUT NOISE

< 100 microvolts p/p, 10 kHz bw

OUTPUT VOLTAGE SWING

± 2.5V max.

POWER

One 9-volt alkaline battery, supplied

BATTERY TEST

Audible tone

BATTERY LIFE TIME

Up to one year, depending on usage

DIMENSIONS

7 x 4 x 2.5 inches (18 x 10 x 6 cm)

SHIPPING WEIGHT

3 lb (1.4 kg)

MODELS

VF4

4-Channel Buffer Amplifier

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                             Note that WPI Equipment is NOT Designed for Human Use

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