Other precision data
acquisition products

EMF 16
Precision Electrochemistry EMF Interface

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  Manuals
Updated   Software   8-23-19
Application Guidance
block diagram

 
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EMF2  
 2-channel electrode interface with free software.  

EMF6  
 6-channel electrode interface with free software.  
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 48 Channel Expanded EMF16
Maximum expansion is 96 channels.
Cost per channel drops as channel
count increases.

OVERVIEW

The EMF16 is a high-resolution, high input impedance, data acquisition system for electrochemistry applications. It connects to a PC serial port for presentation and storage of EMF data. The optional software is written by electrochemists for electrochemistry. It allows up to 16 channels of data to be scanned and displayed, and saved to the disk in real time.The EMF16 is built around our proven 24-bit A/D system. The DC specifications are much better than those of most pH meters. Linearity is 0.002% of full scale, input impedance is 1013 ohms, reproducibility is better than one part per million. BNC connectors are provided for the 16 buffered inputs and for the buffered reference electrode. All inputs are protected against overvoltage. Three measuring modes are selectable via a front-panel switch. Further flexibility is provided through software configuration.

The EMF 16 was developed cooperatively with ETH in Switzerland in 1999 to interface with Ion Selective Electrodes (ISEs). The high channel count, high input impedance interface has since proved generally useful for electrochemistry. The EMF16 is in use in over 20 countries around the world and is cited regularly in published research.

The EMF16 is supplied as a complete multichannel ISE interface system including the interface box and Windows software, serial cable, and power supply.


SPECIFICATIONS

A/D TYPE
24-bit delta-sigma converter with microcontroller supervisor and optical isolation

MONOTONICITY
24-bits

LINEARITY
+/-0.002% of full scale

DIFFERENTIAL INPUT RANGE
+/-5 volts

DC COMMON MODE RANGE
+/-6.0 volts

DC COMMON MODE REJECTION
-100dB typical

INPUT PROTECTION
Will withstand up to 40 volts continuous overvoltage

INPUT IMPEDANCE
10^13 ohms typical

POWER REQUIREMENT
110 VAC or 220 VAC

INTERFACE
RS-232, compatible with USB adapter cables

OTHER SOFTWARE
General-purpose acquisition and graphing software for Win98 and later available for free download at our website
Screen Shots

HARDWARE OPTIONS
220 VAC power supplyno charge
1015 ohm input impedence$200
8-channel unit with fully differentical inputs for combination electrodes$200
RTD temperature probe$275
Expanded systems - we can increase the channel count to 32, 48, or 64.Contact factory for pricing

 USB to serial converter  $20


SIZE
9" wide x 8" deep x 2.5" high

SHIPPING WEIGHT
7 pounds

AVAILABILITY
Stock to 3 weeks

SINGLE-PIECE PRICE
$1695.00

Optional L-EMF DAC Software Version 3.0
Features include:
Flexible acquistion rates and filtering
Auto-scaling graphics
Self-calibration with easy offset voltage suppression
Full-speed operation, even on slower computers
Pause Control
Test Mode
Pop-up Help
Enhanced interoperability
Win98/XP/2K/Vista/Win7/Win8/Win10 operating system compatibility
Price: $495
HOME
Lawson Labs, Inc.
3217 Phoenixville Pike    Malvern, PA 19355
800 321-5355   610 725-8800  
610 725-9344 (fax)
website: https://lawsonlabs.com
email: lawsnlab@lawsonlabs.com


























































last updated this page 12-3-18
EMF16_grf software written in VB
Full package
includes manual   (approx. 1.6meg)
Download VB archive
last updated 8-23-19

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EMF16 software written in Python
Full package
includes instructions   (approx. 137KB)
Download Python archive
last updated 2-2-17

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EMF Suite Software
( unsupported )
Download archive
version 2.0 - last updated 5-8-2009



After download, copy archive to folder on your hard-drive, extract, and run from there.

Help is available by running "EMF Suite Help.chm" after extracting the archive, or by using the "help" in the menu. Note that if it fails to run once you think you've configured the device correctly, try lowering the BAUD from 9600 to 4800.



OPTIONAL L-EMF-DAC 3.0 Software

Under Win7 and above, it is imperative that the installation program, SETUP.EXE, is run as administrator. Simply having administrator rights is not enough.

You must right click on the Setup file and select "run as administrator" from the menu.

Once installed, you may also need to run the application as administrator, by right-clicking the app and choosing the option to "run as administrator."

Troubleshooting L-EMF-DAC installation and operation




















































































Manuals
Download archived L-EMF-DAC software manual  (zip - approx. 1.8meg)
Instruction Supplement
Download EMF16_grf software manual  (pdf - approx. 600k)


















































































 
INSTRUCTION  SUPPLEMENT  for  EMF16

Installation Instructions for L-EMF-DAC software.:

Under Win7 and above, it is imperative that the installation program, SETUP.EXE, is run as administrator. Simply having administrator rights is not enough.

You must right click on the Setup file and select "run as administrator" from the menu.

If you are reinstalling after a failed installation, right click the UNINSTALL utility and choose "run as administrator", then repeat the installation, as above.

Once installed, you may also need to run the application as administrator, by right-clicking the app and choosing the option to "run as administrator."



There are three grounding options selected by the mode switch above our logo:

DIFF is the best, for pure differential measurements. In the  DIFF  positions,  you  *must*  add a third connection to the solution. Use a separate wire to connect the solution to the  COMMON  terminal or   BNC  connector.

For  SAFE  and  COMMON  positions,  do not use the third wire.  In these cases,  the reference input is connected internally to the common. The Safe mode protects the hardware against severe overvoltage and may be just a bit noiser as a result.  The  SAFE  and  COMMON  POSITIONS  can have the effect of lowering the input impredance on the reference side.

The input impedance is  1013  at room temperature.  Input current is typically 3 picoamps.  A  1015  version is available as an option.  An 8 channel differential option is also available.

For more information about the internal function of the  EMF16,   refer to the Model 201 Manual.  The  16 EMF  channels are addressed at analog input channel number zero,  external sub-channels 0 through 15.


NOTE:  For demanding applications,  you may want to consider the free Model 201  graphics software  at our web site.

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