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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