Voltammeter - Amperometer

The CHEM-CLAMP is designed to be a dedicated instrument for Voltammetric and Amperometric Recording. Although the internal design of the CHEM-CLAMP is similar to low noise Patch and Whole cell clamps designed by Dagan Corporation, the price is kept down by including only features needed for Voltammetric and Amperometric Recording.




Current Output Parameters


100, 300, 1K, 3K, 10K Low Pass Bessel Filter (3 Pole)

Feedback resistor/
Max current

0.1, 0.2, 0.5, 1, 2, 5, 10, 20 mV/pA     (standard)         N=1 Headstage (100megohm) 100nA max
0.01, 0.02, 0.05, 0.1, 0.2, 0.5, 1, 2 mV/pA                     N=0.1 Headstage (10 meghom) 1uA max
0.001, 0.002, 0.005, 0.01, 0.02, 0.05, 0.1, 0.2 mV/pA   N=0.01  Headstage (1 megohm) 10 uA max
The linear output range of the Chem-Clamp is 10 volts.
Multiply the N Headstage value  by the GAIN value on the front panel to get the actual Gain

Special  5 Megohm
For the special modification used by the Jones Laboratory at Wake Forest University, please order the regular CHEM-CLAMP, then in the next line item order the CHEM-SM-1
The gains are  .005,  .01,  .05,  .1,  .5,  1,  2,  5  mV/pA for the 5 megohm resistor used in the headstage


0.4 volts/step output BNC's for both Gain and Filter

Voltage Programming

10 Turn Dial

Positive or Negative 200mV per-turn, 10 turn control


100mV/Volt or 200mV/V front panel BNC. Maximum input 10 volts (+/-1 volt or +/- 2 volts command range)


Current Monitor +/-19.99 nA

Voltage Monitor +/-1999mV



2.7" high, 7.5" wide, 9.7" deep


1.1" high, 1.3" wide, 2.2" deep (3 meter cable)

Power Supply


115 or 230 VAC, 50/60 Hz, 20 W.


See Pro-CFE Low Noise Carbon Fiber Electrodes

Download the Manual (PDF)

See CHEM-CLAMP review on Select Science.


Voltammeter and Amperometer Voltage Clamp Amplifier with Headstage (specify N gain, N=1 standard) and PS-2 external Power Supply (115VAC)


CHEM-SM-1 A special 5 Megohm Headstage Version (mainframe & headstage - see above) $810.00
CHEM SM-1 HS Standalone 5 Megohm Headstage (can only be used with SM-1 Chem-Clamp) $860.00
CHEM HS Spare Headstage, specify N=1 (standard), N=0.1, or N=0.01 gain $780.00

PS-1 upgrade

Line operated power supply required for 230 VAC

Add $195.00


Universal Electrode Holder (Mates to Pro-CFE Carbon Fiber Electrodes)



Warning: This equipment is not intended for use in human applications or human experimentation.

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Dagan Corporation  USA      Email:   3/14