Duo 773 Electrometer
WPI

duo773

For intracellular dual or differential studies, the Duo773 has separate negative capacity controls and built-in active filtering that allows the precise balancing of time constants for artifact-free differential measurement. Comes complete with two probe headstages, 1015 Ohms & 1011 Ohms probes to monitor signals from ion-specific micro-electrodes as well as KCl-filled electrodes.

* Although injected currents are “constant,” the maximum current in a given situation will always be limited by the system compliance of 10 V.

**The 712P headstage may be used on either A or B channels, however Current Injection specifications do not apply when used on channel A. The 715P headstage may not be used on the B channel.

ACTIVE PROBE INPUT IMPEDANCE 712P (red, port B) 1011Ω
ACTIVE PROBE INPUT IMPEDANCE 715P (blue, port A) 1015Ω
OUTPUT RESISTANCE 712P (red, port B) 100Ω
OUTPUT RESISTANCE (blue, port A) 100Ω
OUTPUT VOLTAGE RANGE 712P (red, port B) ±10 V
OUTPUT VOLTAGE RANGE (blue, port A) ± 10V
MAXIMUM INPUT VOLTAGE 712P (red, port B) ±15V
MAXIMUM INPUT VOLTAGE (blue, port A) ±15 V
PROBE LEAKAGE CURRENT 712P (red, port B) 5 X 10-12A
PROBE LEAKAGE CURRENT (blue, port A) 10-14A
DC POSITION ADJUST RANGE 712P (red, port B) ± 300 mV
DC POSITION ADJUST RANGE (blue, port A) ± 300 mV
ELECTRODE RESISTANCE TEST CURRENT 712P (red, port B) 1nA
ELECTRODE RESISTANCE TEST CURRENT (blue, port A) 1pA, 1nA selectable
INPUT CAPACITY COMPENSATION 712P (red, port B) +10 to -5pf
INPUT CAPACITY COMPENSATION (blue, port A) 0 to -10pF
NOISE:Input shorted 712P (red, port B) <50µV p-p 10kHz bandwidth
NOISE:Input shorted (blue, port A) <50µV p-p 10kHz bandwidth
NOISE:20 MΩ carbon resistor 712P (red, port B) <200µV p-p 10kHz bandwidth
NOISE:20 MΩ carbon resistor (blue, port A) <200µV p-p 10kHz bandwidth
RISE TIME:10-90% direct input small signal 1µs, typical
RISE TIME:10-90% through 20MOhm (-C "on") 25µs, typical
CURRENT INJECTION: Internal DC Current 712P (red, port B) ± 50nA low range, ± 500nA high range
CURRENT INJECTION: Externally commanded Current 712P (red, port B) ± 500nA low range, ±5µA high range
CURRENT INJECTION: External current command factor 712P (red, port B) 20mV/nA low range, 2mV/nA high range
CURRENT INJECTION: Current monitor 712P (red, port B) 100mV/nA low range, 10mV/nA high range
CURRENT INJECTION: Compliance 712P (red, port B) 3V low range, 10V high range
CURRENT INJECTION: Bridge balance 712P (red, port B) 0-100MΩ, 0-1000MΩ
CURRENT INJECTION: Bridge amplifier gain 712P (red, port “B”) x 10, x 50
LOW PASS FILTER 40 dB/decade, continuously variable 1-30 kHz
METER SECTION: Display 3.5-digit LED
METER SECTION: Ranges 200 mV, 2000 mV, 20 V, 200 nA, 2000 nA
METER SECTION: Accuracy and resolution 1 digit
DIMENSIONS: Instrument 17 x 5.25 x 10 in. (43 x 13 x 25 cm)
DIMENSIONS: Probe Diameter: 12 mm Length: 34mm
POWER 95-135V or 220-240V, 50/60Hz
SHIPPING WEIGHT 15 lb (7 kg)
CERTIFICATION CE, CSA