Features

• It has differential Amplifier with: 

- Common Mode Rejection Ratio (CMRR): 80 dB

- Gain: 120 dB

- Sensitivity to 5 mV

- Frequency Response:  DC to approximately 1 KHz

• For protection against line power, safety devices are incorporated which limits the input voltage.

• Control Switches for varying roll off frequencies and amplifier gain

• Optocoupler to isolate the front end amplifier and reference ground from earth ground circuitry

• Selectable notch filter which allows 50Hz/60Hz filtering.

• Isolated Power Supplies to isolate the front end amplifier from the common earth ground supply (provides an additional margin of safety)

• Polarity Correction Circuitry  enable the R wave to be either positive or negative; the output is always a positive signal

• Pulse Stretching Circuit use the R wave as the signal and converts it into a rectangular pulse

• Tone Generator to produce the tone whose on period is controlled by the Pulse Stretcher Circuit

• Converts the pulse stretched signal into a DC level for the 1 mA meter 

• Lead selector switch for selecting lead 1, lead 2, lead 3, during ECG measurement. 

• Calibration 1mV facility

• Various instrumentation circuits can be individually tested which are fully explained in laboratory manual like Differential Amplifier, Opto Electronic components, Notch filters etc.

• ECG Simulator (optional)

Module has the following Capability:

• How the muscle recording affects the recording

• Effect of respiration on pulse rate

• Effect of poor electrode connection on a lead II recording

• Measuring the distance in millimeters between two adjacent R waves of a lead II tracing.

• Comparing leads I, Ii, III for differences in amplitude and periods between pulses 

• Analyzing P-Q-R-S-T waves

• Many more capabilities

The following Equipments are Supplied

? Set of ECG electrodes and straps along with 5 terminal connector between the leads and ECG box

? Laboratory manual

? Biomedical disposal Accessories Package 

ADVANCED ECG SIMULATOR

• 12 point ECG simulator with dummy human body

• All ECG points are as on actual human body

• All are independent signal simulator on each point.

• The signals are V1, V2, V3, V4, V5, V6, LA, RA, RL, LL

• Signal amplitude 100mV onwards adjustable by potentiometer