Oscillograph / Isolated Amplifier

The front end of the preamplifier is battery powered (2 x 9 volt transistor radio batteries) while the back end receives its power from the host unit. A meter shows battery state and the batteries are connected only when linked to the host unit. There are 3 ranges (0 to 10 k?, 0 to 100 k? and 0 to 1 M?) and DC level control, built in audio speaker with modulation facility and a normal/differential switch. The maximum sensitivity is 50?/cm of pen deflection when used with the Harvard Apparatus oscillographs. It is supplied with the 50-9521 GSR Finger Electrode Set.

The 50-5966 Isolator Interface is needed to connect this unit to a Universal Oscillograph or Interface Adapter, or it plugs directly into the Harvard Apparatus Student Oscillographs.

The sole purpose of this interface is to allow connection of the Harvard Apparatus range of Isolated Preamplifiers to the Universal Oscillograph or Interface Adapter. The On/Off control is used to connect the battery power in the Isolated Preamplifier.

The front end of the Preamplifier is battery powered (2 x 9 volt transistor radio batteries) while the back end receives its power from the host unit. A meter shows battery state and the batteries are connected only when linked to the host unit. The input is via either the 3-pin binder socket or the row of five standard color coded 2 mm sockets (labeled LA, RA, LL, RL and C) for 5 electrode ECG measurements. A 7-position ‘limb’ selector allows connection of the standard ECG electrode configurations.

There is a 3-position gain switch (x10, x100 and x1000), an input selector for AC or DC coupled, a filter selector (3 dB down at 30 Hz, 150 Hz and 15 kHz) and a DC level control. Maximum gain when used with a Harvard Apparatus Oscillograph is 30 µV/cm of pen deflection. A comprehensive range of electrodes and input leads is available.

The iWorx RA Recorder is the most advanced and feature-rich physiological data acquisition system on the market. It comes standard with eight general purpose input channels, a low voltage and high voltage stimulator, eight digital inputs and outputs, a built-in barometric pressure sensor, and four iWire™ inputs.

The iWorx RA exhibits the high resolution, low noise, and flexibility required for a variety of research applications including cardiac function, hemodynamics, isolated tissue and organ studies, exercise physiology research, metabolic function studies, neuroscience and both oocyte and epithelial voltage clamp applications. Incorporating innovative iWire serial interface technology and advanced LabScribe data acquisition and analysis software, the iWorx RA Recorder accommodates a wide range of sensors, transducers, and other devices.

This versatile, compact, 2-Channel Student Oscillograph is available with curvilinear or rectilinear recording and features. Unlike the Modular Universal Oscillograph, see preceding pages, which supplies power to operate its ampli-fier interfaces, the Student Oscillograph requires freestanding AC or battery operated amplifier

COMPANY : HARVARD, ENGLAND.

These oscillographs are designed around a pen amplifier module which contains the circuits to power the pen and operate the various amplifier interface modules on the following pages. The oscillographs are supplied with 2 or 4 factory-installed pen amplifier modules with either curvilinear or rectilinear writing.

These oscillographs are designed around a pen amplifier module which contains the circuits to power the pen and operate the various amplifier interface modules on the following pages. The oscillographs are supplied with 2 or 4 factory-installed pen amplifier modules with either curvilinear or rectilinear writing.

Curvilinear or rectilinear recording
→ Available in two sizes:
— 2 channels for one or two writing channels
— 4 channels for one, two, three or four writing channels
→ For use with Harvard Apparatus Amplifier Interfaces, which plug in directly to the oscillograph
→ Accept inputs from freestanding amplifiers or transducers via BNC connector (For Harvard Apparatus Research Grade Blood Pressure Transducer, for Isotonic and Isometric Transducers)

→ Extremely versatile
→ Two models available:
→ Modular for plugging directly into Modular Universal Oscillographs
→ Freestanding for direct connection to Data Acquisition Systems, Student Oscillograph or other recording devices

The Modular Interface receives its power from the Modular Universal Oscillograph. The Freestanding Interface is AC powered. This interface handles six transducer types using a six-position switch.

PowerLab 4/35 Data Acquisition System – 4 Channels with LabLabChart Pro Software, Model PL3504/P

→ Full electrical isolation from power-line (mains) circuitry to guarantee subject safety
→ Low-noise, high-gain differential amplifier specifically designed for biological signal measurements
→ Software-controlled low-pass, high-pass and notch filters to remove unwanted signal frequencies for particu-lar uses
→ Audio output for use with EMG signals and similar

→ For ECG, EMG, ENG and EOG.
→ High gain, low noise and drift.
→ Step gain switch, x10, x50, x100, x200, x500, x1000.
→ AC/DC selector switch.
→ DC level control.

There is a 6 position gain switch, an input selector for AC or DC coupled, a filter selector and a DC level control giving a maximum offset range of +4 volts.

Input is via a 7-pin binder socket and output via edge connector into the Universal Oscilloscope or Interface Adapter.

Note : Please mention the product “SOM CODE” while making request for quotation and send it to *****@somatco.com