Overview

The ECM8™ Electrochemical Multiplexer partners with a Gamry Potentiostat to convert a single potentiostat into a powerful instrument suitable for sequential multichannel operations. It allows you to sequentially take measurements on up to 8 electrochemical cells. The ECM8 is great for automating repetitive experiments, and for increasing throughput on long-term experiments where data can be taken periodically. Each of the eight Multiplexer channels also incorporates a "local" potentiostat to polarize the sample when not participating in the electrochemical experiment. The ECM8 is not usable for simultaneous multichannel experiments across multiple cells. For simultaneous multichannel experiments see the MultEchem Electrochemistry System.

Applications

• Corrosion Inhibitor Testing
• Paint/Coating Evaluation
• Galvanic Corrosion
• Corrosion Monitoring
• Chemical Sensor Development

Standard Features

• 8-channel for sequential measurements.
• DC and AC experiments.
• Includes industry standard multiplexed experiments.
• 8 Local Potentiostats – Inactive channels can be set to open, short, or polarized.
• Warranty – Protected by 2-year factory service warranty.

 

	Channel Characteristics
Modes	Active, Open, Shorted, Local
Channel Switching Time	<4 msec	Excluding communication time
Cell Current	1 Amp max	Switched
Input Voltage (operating)	±12 Volts	vs. Chassis (except Counter)
Input Voltage (no damage)	±24 Volts	vs. Chassis
Counter Electrode Voltage	±120 Volts	vs. Chassis
	Channel Isolation
Current Leakage	<2 nA max	To any electrode in active channel from any source
Impedance	>500 MΩ <20 pF	To ECM8 Ground
	Power Input
Input Voltage Ranges	100,120,220,240 V rms
Allowed Voltage Variation	±10%	On each range
Power	<50 VA
	Local Potentiostat (ECM8 only)
Compliance - Current	±20 mA	500Ω load
Compliance - Voltage	±11 Volts	1kΩ load
Applied E Range	±5.12 Volts	Working vs. Reference
Resolution	2.5 mV/bit
Zero Offset Error	<4 mV typical <10 mV max	0 Volts output 10 kΩ load
Gain Error	<0.2%	10 kΩ load
Reference Input Current	<50 pA
NOTE: Applied voltage error
	RS-232 Communications
Baud Rates	300, 600, 1200, 2400, 4800, 9600, 19200	Set via internal DIP switches
Default	9600	Factory setting
Handshake	Hardware via RTS and CTS
	Environmental
Operating Temperature	0 to 45° C
Humidity	0 to 90%	Noncondensing

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• ECM8 Product Brochure
• ECM8 Multiplexer Operators Manual