PowerLab 15T

Overview:

The PowerLab 15T is an integrated data recording unit featuring built-in amplifiers. With appropriate transducers and accessories the PowerLab 15T covers the broad experimental requirements in life science education.

The ML818 PowerLab 15T includes:

• LabTutor Software and LabTutor Experiments (Windows only)
• Cable Kit including Power Cord, DIN to BNC Test Cable, USB Cable
• Getting Started with LabTutor Manual
• MLA2540 5-Lead Shielded Bio Amp Cable
• MLA2505 Shielded Lead Wires (5)
• MLADDF30 Stimulating Bar Electrode
• MLT1010/D Finger Pulse Transducer

Features:

• Recording speed of up to 100 000 samples per second per channel (400 000 samples per second aggregate)
• Two isolated biological inputs (approved for human connection, pending)
• A constant-current isolated stimulator output (approved for human connection, pending)
• Two non-isolated analog inputs
• Two analog outputs
• USB interface

Applications:

The PowerLab 15T can record biological signals from humans or animals, with full electrical isolation, and can also be used for any general-purpose stimulation. It is recommended for classroom applications such as Human and Animal Physiology, Neurobiology, Pharmacology, Psychophysiology, Biochemistry and more. For a comprehensive list of applications and experiments visit the PowerLab Education Applications page and LabChart Experiments page.

LabTutor Software and Teaching Experiments:

A revolution in teaching laboratory software, LabTutor is a data acquisition, experimental manual and report booklet in a single software interface. Each LabTutor experiment provides scientific background, setup guides and experimental protocols to independently guide students. Real physiological data and experiments are performed and collected using the LabTutor acquisition panel. The analysis and reporting sections are all contained within the one LabTutor program with data analysis and the student report being submitted electronically by email or saved and printed for submission.


For more information visit the LabTutor page and the LabTutor Experiments page, for a list of current and the latest new and updated experiments.

Specifications:

(As tested at the time of printing and are subject to change)

Analog Inputs

• Number of inputs: 2 DIN
• Amplification:

Range ± 10 V ± 5 V ± 2 V ± 1 V ± 500 mV ± 200 mV ± 100 mV ± 50 mV ± 20 mV

Resolution 313 μV 156 μV 62.5 μV 31.3 μV 15.6 μV 6.25 μV 3.13 μV 1.56 μV 0.625 μV

• Maximum input over-voltage: ± 15 V
• Input impedance: 1 MOhm @ 150 pF (Inputs 1 & 2)
• Maximum Bandwidth: 25 kHz
• DC drift: Software corrected
• CMRR: > 105 dB at a gain of 100
• Interchannel crosstalk: > 90 dB
• Signal-noise ratio: > 100 dB (10 V range)
• Accuracy error: < 0.2%
• Non-linearity (max) 0.1%
• Filter – Low Pass: 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000 Hz and anti alias
• Filter – Notch: Main

Pod Connectors

• Inputs: 1 & 2
• General features: Combined power, I²C and single ended or differential analog input signals on one connector, support SmartPod transducers.
• Supply voltage: ± 5 V regulated
• Maximum current: 50 mA per pod connector
• Communications: 2-wire I2C
• Signal input: Positive and negative analog inputs
• Connector type: 8-pin DIN with metal surrounds

Bio Amp Input, Inputs 3 and 4

• Number: 2
• Input configuration: Differential channels with common isolated ground
• Amplification:

Range ± 20 V ± 10 V ± 5 V ± 2 V ± 1 V ± 500 mV ± 200 mV ± 100 mV

Resolution 625 μV 313 μV 156 μV 62.5 μV 31.3 μV 15.6 μV 6.25 μV 3.13 μV

• Gain accuracy: 1%
• Non-linearity: 1%
• Bandwidth: 5 kHz
• Noise: < 1 μVrms (0.5-2 kHz)
• Maximum input over-voltage: ± 5 V
• Input leakage current: < 4 μA_rms @ 240 V, 50 Hz < 4 μA_rms @ 120 V, 60 Hz
• DC blocking: ± 0.3 V
• Baseline restoration: Automatic or user-controlled
• Input impedance: 100 MOhm to isolated ground (~500 pF per lead) using supplied Bio Amp subject cable and lead wires
• Safety: IEC 60601-1 and CSA/UL approval pending
• Isolation rating: 4000 V AC_rms (1 minute)
• IMRR: 130 dB
• CMRR: 110 dB
• High-pass filtering: Single-pole 0.5 Hz and 10 Hz
• Low pass filtering: 10, 20, 50, 100, 200, 500, 1000, 2000 Hz

Sampling

• ADC configuration: Each channel has its own ADC
• ADC resolution: 24 bit
• ADC linearity: ± 0.0006% FSR (INL)
• Maximum sampling rates: 100 000 samples per second per channel (concurrent)– 400 000 samples per second (aggregate)
• Available sampling rates: 100 000 samples per second down to 10 min/sample

Output Amplifier

• Output configuration: 2 – outputs Complementary
• Output resolution: 16-bit
• Maximum output current: 20 mA
• Accuracy error: < 0.2%
• Linearity error: ± 0.5 LSB (INL)
• Output ranges: ± 10 V
• ± 5 V
• ± 2 V
• ± 1 V
• ± 500 mV
• ± 200 mV
• Output slew rate: 2.3 V/μs
• Settling time (G=1, 10 V step): 5 μs
• Output impedance: 0.001 Ohms

Isolated Stimulator Output

• Output configuration: Constant-current stimulator with hardware limited repetition rate
• Isolation rating: 4000 Vrms to ground as per IEC 60601-1 2000 Vrms to Bio Amp inputs
• Pulse duration: 50–200 μs (software-selectable)
• Compliance voltage: 100–110 V typical
• Output current: 0–20 mA in 0.1 mA steps (software adjustable)
• Pulse rate: Software-selectable, but hardware-limited to a maximum of 20 Hz and 200 μs for safety
• Safety indicators: Green and yellow indicators. Green flash indicates delivery of a valid stimulus. Concurrent green and yellow flash indicates an out-of-compliance condition.
• Safety switch: Provides physical disconnection of the stimulator from the subject.

Microprocessor and Data Communication

• CPU: Digital signal processor – Freescale DSP56858
• RAM: 4 Mbit SRAM
• ROM: 1 Mbit Flash ROM
• Data communication: Hi-speed USB 2.0 (max 480 Mbit/sec transfer).
• USB 1.1 compatible

Physical Configuration

• Dimensions (w x h x d): 200 mm x 65 mm x 250 mm (7.9" x 2.6" x 9.8")
• Weight: 1.8 kg (2.65 lbs)

Operating Requirements

• Operating voltage range: 95 to 264 V, AC 47-63 Hz
• Rated power: 25 VA
• Operating conditions: 0 to 35 °C, 0 to 90% humidity (non-condensing).