PowerLab 15T (LTS)

Overview:

The ML4818 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 ML4818 PowerLab 15T includes:

• LabTutor Teaching Suite Software with LabTutor Experiments (one per server installation)
• 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, with data acquisition,experimental manual and report booklet in a single software interface.
• Each LabTutor experiment includes background information, setup guides and student experimental protocols.
• Real physiological data collection and experimentation performed using LabTutor panel.
• Analysis and reporting sections are all contained within the LabTutor program
• Provides a single-point management interface for educators on the number of courses, student data and reports via a single networked computer.

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 mV ± 10 mV ± 5 mV ± 2 mV ± 1 mV ± 500 μV ± 200 μV ± 100 μV

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

• 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).