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https://www.lakeshore.com/M81/

MeasureReady™ M81 Synchronous Source Measure System Quick Start Guide

Do Not Substitute Parts or Modify Instrument

 

Do not install substitute parts or perform any unauthorized 
modification to the instrument. Return the instrument to an 
authorized Lake Shore Cryotronics, Inc. representative for service 
and repair to ensure that safety features are maintained. If the 
equipment is used in a manner not specified by the manufacturer, 
the protection provided by the equipment may be impaired.

Cleaning

 

Do not submerge instrument. Clean only with a damp cloth and 
mild detergent. Exterior only.

Desktop Installation

 

When installing the instrument in a desktop environment, ensure it 
is mounted on a flat, level surface.

Improper Use

 

If the instrument is used in a manner that is not specified by Lake 
Shore, the safety protections provided by the instrument are no 
longer guaranteed, and may be impaired.

Child Safety

 

This equipment is not suitable for use in locations where children 
are likely to be present.

Key specifications

Ambient temperature

   

Rated accuracy is ±5 °C of calibration temperature; 5 °C 
to 40 °C at reduced accuracy

Power requirement

 

 

100, 120, 220, 240 VAC, ±10%, 50 Hz or 60 Hz, 140 VA

MeasureReady™ M81-SSM size 

   

216 mm wide × 87 mm high × 369 mm deep 
(8.5 in × 3.4 in × 14.5 in)

MeasureReady™ M81-SSM weight 

   

5.7 kg (12.6 lb)

Approval

    

CE mark

NOTE: 

Not all specifications are listed. For full 

specifications, see 

https://www.lakeshore.com/M81/

.

!

CAUTION or WARNING: See 

instrument documentation; 

background color: yellow; 

symbol and outline: black

Frame or chassis terminal

Protective conductor terminal

Alternating current (power line)

Summary of Contents for Measure Ready M81

Page 1: ...1 https www lakeshore com M81 MeasureReady M81 Synchronous Source Measure System Quick Start Guide Quick Start Guide M81 Synchronous Source Measure System ...

Page 2: ...to comply could result in death or injury to personnel Ground the Instrument To minimize shock hazard the instrument is equipped with a 3 conductor AC power cable that mates with the IEC320 C14 line power receptacle on the back of the instrument Plug the power cable into an approved 3 contact electrical outlet or use a 3 contact adapter with the grounding wire green firmly connected to an electric...

Page 3: ... a flat level surface Improper Use If the instrument is used in a manner that is not specified by Lake Shore the safety protections provided by the instrument are no longer guaranteed and may be impaired Child Safety This equipment is not suitable for use in locations where children are likely to be present Key specifications Ambient temperature Rated accuracy is 5 C of calibration temperature 5 C...

Page 4: ... and contents until instructed to either return or discard them Features Unique real time sampling architecture for synchronous sourcing and measuring MeasureSync technology for simultaneous source module excitation and measure module timing across all channels User selectable measurements of AC DC and lock in functions on all measure channels Common DAC ADC sampling clock ensures highly precise a...

Page 5: ...ic application Unique flexible instrument with distributed module architecture Remote mountable modules are interchangeable between instruments Modules are dynamically recognized when the system is reconfigured Uses a clean simple UI and a common programming API for fast setup and a shorter learning curve Components of the M81 SSM Connect up to three source modules and up to three measure modules ...

Page 6: ...EMO measure module connectors 3 BNC reference input 4 BNC reference output 5 BNC monitor output 6 DB15 accessory connector 7 GPIB interface connector 8 12 pin digital I O connector 9 RJ 45 Ethernet interface 10 USB Type B serial communications interface 11 USB Type C data transfer interface for file upload download 12 AC mains input connector voltage selector fuse module 13 Chassis ground connecti...

Page 7: ...s Status bar Instrument connection Plug in the MeasureReady M81 SSM using the supplied power cord The instrument will begin its power up sequence After the sequence is complete this may take approximately 45 s during initial operation the Home screen is displayed Tap a module tab or swipe to navigate between modules NOTE The screens you see may differ depending on your software version Some screen...

Page 8: ...ied When the switch is green the output is connected and excitation is applied Make sure that other settings are configured appropriately before enabling the output Shape The shape setting determines whether the output is a DC signal or an AC signal sine triangle or square Frequency The source frequency can be set by tapping the frequency and entering a new frequency value Amplitude When shape is ...

Page 9: ...tage measurement modules can be configured for DC AC or lock in detectiosn modes To change the mode on the front panel tap the mode and select the desired option DC mode Display In DC mode the display will show a single value which is the DC indication Averaging time The averaging time is specified in Number of Power Line Cycles NPLC Note that the M81 detects the power line frequency in your count...

Page 10: ...he observation time Peak the lowest input level detected during the observation time Peak to Peak the span between the highest and lowest input levels detected during the observation time Observation time The observation time is specified in Number of Power Line Cycles NPLC Note that the M81 detects the power line frequency in your country For example if your power line frequency is 60 Hz setting ...

Page 11: ...signal Reference source The measure channel will detect frequencies which are coherent with the specified reference source For example if a sample is being excited with a current by S1 the reference source can be set to S1 The reference source can also be set to Ref In In this case the source will track the frequency detected on the reference input Reference harmonic The reference harmonic can be ...

Page 12: ...nt setting determines the bandwidth of the PSD output filter Longer time constants will result in lower Equivalent Noise Bandwidth ENBW at the cost of longer settle times See the table below Rolloff The rolloff setting determines the slope of the PSD output filter in the stop band Steeper rolloff will result in lower ENBW at the cost of longer settle times Steeper rolloff will also provide better ...

Page 13: ...ngs Default address 12 Valid terminators LF CRLF LF EOI CRLF EOI EOI Remote access The M81 adheres to the Standard Commands for Programmable Instruments SCPI standard Once connected to your PC the M81 can be remotely operated in the following ways Lake Shore Python driver To install the Lake Shore Python driver install python then run pip install lakeshore For example to get a DC reading from M1 f...

Page 14: ...e MeasureLINK software and the scripting development license need to be reactivated annually For more information please see the MeasureLINK MCS Software Quick Start Guide and the integrated Help files within MeasureLINK MCS software for specific scripting examples for the M81 SSM Computer interface connections The USB connection will be listed as a virtual COM port on your PC If you are not able ...

Page 15: ...nd company shut down days https www lakeshore com service The Lake Shore Forum is also a great place to look for solutions to post issues and to share successes http forums lakeshore com For further documentation and information please see https www lakeshore com M81 Lake Shore Service Lake Shore Cryotronics Instrument Service Department 575 McCorkle Blvd Westerville Ohio USA 43082 8888 Phone 614 ...

Page 16: ...16 MeasureReady M81 Synchronous Source Measure System Quick Start Guide Rev 1 1 P N 119 M81 Q 1 July 2021 ...

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