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Two-Channel Voltage- 
  Current Clamp 


  • For the study of epithelial tissues
  • Operate in five modes: voltage clamp, amplify, current clamp, timer, and remote

 

 
 
Features

WPI’s DVC-1000 Two-Channel Voltage/Current Clamp is well-known and widely used for studying epithelial tissues. Each DVC-1000 consists of two separate clamp instruments, one for clamping a control tissue, another for clamping a test tissue. This dual clamp technique lets you monitor changes in membrane permeability as a function of voltage or applied chemical agents. Either clamp unit operates in five modes. Voltage clamp: Clamps the tissue voltage to a given level and displays the current required to maintain that level. Amplify: Shows the potential difference between the two voltage electrodes. Current clamp: Lets you deliver a constant current between the two current electrodes while simultaneously monitoring voltage changes at the tissue. Timer: Functions in either current clamp or voltage clamp experiments, letting you cycle automatically between zero clamp and a preset clamp level. Remote: Allows you to control clamp operation from a computer or other logic level source. Small preamplifiers (included) which mount close to the chamber let you connect to voltage and current electrodes without long cables or agar bridges. DVC-1000 also features a unique ±100 V power supply capable of delivering up to 1 mA of clamp current. Each clamp lets you correct for input offset voltages and fluid resistance error.

Includes:

Two DVC3 preamps and one DVC2 dummy membrane. 

Specifications 

PROBES: INPUT IMPEDANCE 10^12 ohm
PROBES: LEAKAGE CURRENT 100pA max
PROBES: MAXIMUM INPUT VOLTAGE 10V
VOLTAGE CLAMP: CLAMP VOLTAGE RANGE: SET CLAMP POT ±100mV
VOLTAGE CLAMP: CLAMP VOLTAGE RANGE: EXTERNAL COMMAND ±1V
VOLTAGE CLAMP: CLAMP VOLTAGE RANGE: COMMAND FACTOR 10mV/mV
VOLTAGE CLAMP: CLAMP VOLTAGE RANGE: MAX. CLAMP CURRENT ±1mA
CURRENT CLAMP: CLAMP CURRENT RANGE: SET CLAMP POT ±1mA
CURRENT CLAMP: CLAMP CURRENT RANGE: EXTERNAL COMMAND ±1mA
CURRENT CLAMP: CLAMP CURRENT RANGE: COMMAND FACTOR 1mV/uA
CURRENT CLAMP: CLAMP CURRENT RANGE: COMPLIANCE ±100V
INPUT OFFSET RANGE ±130mV
FLUID RESISTANCE: COMPENSATION RANGE 0-1000 ohm
TEST CURRENT 10uA to 180uA adjustable
OUTPUT RESISTANCE 10ohm
TIMER RANGE 500ms to 500s each side
LCD METER: TYPE 3.5 digits with Noiselok
LCD METER: MAX. READING 2000uA, 200mV
POWER REQUIREMENTS 95-135V or 220-240V, 50/60Hz
DIMENSIONS 17 x 8.75 x 9.5 in. (43 x 22 x 24 cm)
SHIPPING WEIGHT 21 lb (9.5 kg)

 
 
 
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