PowerLab 26T (LTS)

Overview:

The ML4856 PowerLab 26T is an integrated data recording unit featuring a dual Bio Amp, an isolated stimulator, trigger input and two independent analog outputs (non-isolated). The ML856 provides the option of up to four general DIN inputs (Inputs 3 & 4 are shared between the dual Bio Amp). With appropriate transducers and accessories the PowerLab 26T covers the broad experimental requirements in life science education.

The ML4856 PowerLab 26T includes:

• LabChart Teaching Suite software
• LabTutor Teaching Suite software (one per server installation)
• Teaching Resources CD (includes LabChart Experiments)
• Cable Kit including Power Cord, BNC to DIN Test Cable, USB Cable
• Getting Started with PowerLab Manual
• Getting Started with LabTutor Manual
• LabChart Quick Reference Guide
• MLA2540 5-Lead Shielded Bio Amp Cable
• MLA2505 Shielded Lead Wires (5)
• MLADDF30 Stimulating Bar Electrode
• MLAC22 BNC to DIN Smart Adapter (2)
• MLT1010/D Finger PulseTransducer

See my front

See my back

Spin me around

Complete Systems

LabTutor Software

LabChart Software

Features:

• Recording speed of up to 100 000 samples per second (per channel)
• Two isolated biological inputs (approved for human connection)
• A constant-current isolated stimulator output (approved for human connection)
• Two to four non-isolated analog inputs
• Two analog outputs
• Digital inputs and outputs for external instrument control
• External trigger input and signal triggering
• USB interface

Applications:

The PowerLab 26T 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.

LabTutor 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.

LabChart Teaching Experiments:
This system is supplied with a complete suite of human physiology and animal experiments for use with LabChart. These experiments include Instructor Guides, Student Protocols and Reports, data acquisition settings files and example data files. To view these teaching experiments visit the Configured LabChart Experiments page.

LabTutor Experiments

LabChart Experiments

Education Applications

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

Specifications:

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

Analog Inputs

• Number of inputs: 4 DIN
• Amplification:

• Maximum input over-voltage: ± 15 V
• Input impedance: 1 MOhm @ 150 pF (Inputs 1 & 2), 1 MOhm @ 200 pF (Inputs 3 & 4)
• 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: Mains

Pod Connectors

• Inputs: 1-4 (3 & 4 override Bio Amp inputs)
• 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 and analog return
• Connector type: 8-pin DIN with metal surrounds

Bio Amp Input (Inputs 3 and 4)

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

• Gain accuracy: 1%
• Non-linearity: 1%
• Noise: < 1 iV_rms (0.5-2 kHz)
• Maximum input over-voltage: ± 5 V
• Input leakage current: < 4 iA_rms @ 240 V, 50 Hz < 4 iA_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
• Filter – High-Pass: Single-pole 0.5 Hz and 10 Hz
• Filter – Low Pass: 10, 20, 50, 100, 200, 1000, 2000 Hz and anti alias
• Filter – Notch: Mains
• Audio output: Stereo output supplying signals from both Bio Amp channels. Suitable for earphones, headphones, or most externally powered speakers. Output is a 300 mV signal at full scale.

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, Typical)
• ± 0.5 LSB (ONL, typical)
• Output ranges:

• Output slew rate: 2.3 V/is
• Settling time (G=1, 10 V step): 5 is
• Output impedance: 0.001 Ohms

Isolated Stimulator Output

• Output configuration: Constant-current stimulator with hardware limited repetition rate
• Isolation rating: 4000 V_rms to ground as per IEC 60601-1 2000 V_rms to Bio Amp inputs
• Pulse duration: 50–200 is (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 is 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.

External Trigger

• Trigger mode: TTL level or contact closure, software selectable
• Trigger threshold: 2 V typical
• Hysteresis: 0.6 V typical
• Input Load: HCMOS
• Maximum input over-voltage: ± 12 V
• Minimum pulse width: 3 is

Expansion Ports

• I²C expansion port: Power and control bus for front-end units. Supports a number of front-ends equal to number of PowerLab analog inputs. Interface communications rate of up to 10 kbit/s
• Digital output: 8 independent lines, TTL output level (8 mA maximum load per line)
• Digital input: 8 independent lines, TTL input level threshold 1.2 V, 10 kOhm input impedance, 5 V maximum

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 Mb/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).