The ML221 Bridge Amp is a single-channel, non-isolated bridge amplifier suitable for use with force, pressure, displacement and other transducers. It uses a low-drift instrumentation amplifier and offers software-controlled zeroing. The ML221 offers a wide amplification range (±200 µV to ±5 V in 14 steps) allowing the amplifier to be used with a wide range of transducers. A high impedance input (2 x 1 megohm single-ended, 2 megohm differential) is provided to ensure that the Bridge Amp will not load the transducer. The overload light on the front of the amplifier provides an indication of whether the attached transducer is operating correctly or incorrectly. To connect transducers with Grass connectors, a MLAC11 Grass Adapter Cable will need to be purchased.
Hardware and Software Requirements:
The ML221 Bridge Amp will only operate with PowerLab /SP, /25 and /30 or later units and are not suitable for use with other data acquisition systems.
The ML221 will only operate with LabChart version 5.4.2 or later (Win & Mac) and LabChart 6 or later (Win & Mac). The ML221 Bridge Amp will not operate with earlier versions of Chart 5 or Chart 4. For an upgrade to LabChart please contact your nearest ADInstruments Representative for further information.
The ML221 will only operate with Scope for Windows (3.7.8 or later) or Scope for Mac (4.0.3 or later). The ML221 Bridge Amp will not operate with earlier versions of Scope. Free updates for Scope are available from our
Downloads site. For further information or assistance please contact your nearest
ADInstruments Representative.
Applications: Measurements from a wide variety of transducers, such as those strain gauges used in force platforms, some respiratory transducers, blood pressure transducers and others.