|
MODES
of OPERATION
RPel: Potential Electrode Resistance Test; CC: Current
Clamp Mode; VC: Voltage Clamp Mode; RCel: Current
Electrode Resistance Test; BR: Bridge Mode (optional,
TEC-05X); MODE selection: two toggle switches
(TEC-03X, TEC-05X), or pushbuttons (TEC-10CX) , LED
indicators; remote selection by TTL inputs, software
assessable (optional).
HEADSTAGES
Potential headstage:
Operating voltage ±15 V; Size (approx.): 65x25x25mm,
holding bar diameter 8 mm, length 10 cm; Electrode
connector: BNC with driven shield, grounded enclosure;
Ground connector: 2.4 mm connector, 1 mm or headstage
enclosure; Reference connector (bath): gold-plated SUBCLIC, grounded
shield; Input resistance: >10E+13
Ohm; Differential input (for supression of bath
potentials):
cmr> 80 dB.
Current headstage (15 V, 45 V): Operating
voltage: ±15 V, ±45 V ; Size (approx.): same as
potential headstage, Electrode connector: BNC with
driven shield; Ground: 2.4 mm connector, 1 mm or
headstage enclosure; Input resistance: >10E+12 Ohm
(internally trimmable); Driven shield range: ±45 V.
Current headstage (150 V, 225
V): Operating voltage: ±150 V (standard) or ±225
V; Size (approx.): 100x50x30 mm with heat sink
100x50x20 mm (150 V) or 225x40x60 mm (225 V), grounded
enclosure, holding bar diameter 8 mm, length 10 cm (isolated from
ground, standard system only);
Electrode connector: gold-plated SUBVIS connector,
grounded shield; Input resistance: >10E+12 Ohm (internally
trimmable); Power dissipation: 6 W (standard) or 20 W (225 V).
Current range:
450nA / 100 MOhm or 4.5 µA / 10 MOhm (45 V),
150 µA / 1 MOhm (150 V), 220 µA / 1 MOhm (225 V);
Current range switch (optional): x2, x5, x10, or x0.1,
x0.2, 0.5, x1.
Bandwidth and Speed of Response:
Full power bandwidth (Re = 0): >100 kHz; Rise time
(10 % - 90 %, current pulse of 100 µA applied to
Re = 1 MOhm): <30 µs; Bandwidth switch: wide band
or 10 Hz for parallel patch clamp recordings.
Current Electrode Parameter
Controls:
Offset compensation: ten-turn control, ±1200 mV;
Capacity compensation (optional, TEC-05X): range 0 -
30 pF, ten-turn potentiometer; Leakage current:
adjustable to zero with ten-turn control.
Potential Electrode Parameter Controls:
Offset compensation: ±200mV, ten-turn control;
Capacity compensation: range 0 - 30 pF, ten-turn
control.
POTENTIAL OUTPUTS:
Potential electrode: two outputs, sensitivity x10 mV
and x40 mV, voltage range ±15V; Current electrode:
sensitivity x10 mV, voltage range ±15 V; DISPLAY (switch
selected): XXX mV.
AUDIO MONITOR: Pitch
correlated with potential signals, switch selected.
OSCILLATION SHUT-OFF:
Turns off current injection and capacity compensation,
function indicated by red/green LED, disabled/off/reset
switch, threshold set with linear
control (0
- 1200 mV). |
ELECTRODE
RESISTANCE TEST (both electrodes):
100 mV/MOhm, obtained by application of square current
pulses ±10 nA, display XX.XMOhm, selected
automatically.
CURRENT OUTPUTS:
Uncompensated output signal: sensitivity 0.1 V/µA,
voltage range ±15 V; Compensated/filtered output:
sensitivity:
0.1 V...10 V/µA in 1-2-5 steps, selected by
rotary switch or software control (optional), with
lowpass Bessel filter, sensitivity monitor: +1 V...+7
V, 1V/switch position; DISPLAY: X.XX µA.
CURRENT SIGNAL PROCESSING:
Transient compensation unit (TEC-10CX): three
overlapping time ranges (max: T1 = 3.3 ms, T2 = 330 µs,
T3 = 33 µs), time contants set with ten-turn
controls, amplitudes set with one-turn linear
controls, leakage compensation max.
1 µA.
CURRENT OUTPUT FILTERS:
Two-pole (TEC-03X, TEC-05X, standard) or four-pole
(TEC-03X-BF and TEC-05X-BF and TEC-10CX) lowpass
Bessel filter with 16 corner frequencies, 20 Hz - 20
kHz; frequency monitor: -8 V...+7 V, 1 V/switch
position, software assessable (optional).
CURRENT CLAMP (standard
headstage):
Inputs: 1 µA/V, 0.1 µA/V with ON/OFF switches
(TEC-05X, TEC-10CX), input resistance >100 kOhm:
HOLD: X.XX nA, ten-turn digital control with -/0/+
switch, maximum 10 µA; BRIDGE balance (optional,
TEC-05X systems): max. 10 MOhm or max. 100 MOhm
(switch selected) with ten-turn digital control.
Speed of response (1% settling time; potential output
signals after application of square pulses of 1 V with
1 MOhm electrode resistance): potential electrode
<10 µs.
VOLTAGE CLAMP:
Inputs: :10 mV and :40 mV (TEC-05X, TEC-10CX) with
ON/OFF switches, input resistance >100 kOhm; HOLD:
XXX mV, ten-turn digital control with +/0/- switch,
maximum 1000 mV; RISE TIME LIMIT: 0 - 0.2 ms; GAIN: 10
µA/V - 10000 µA/V, ten-turn linear control;
INTEGRATOR
TIME CONSTANT:
200 µs - 2 ms, ten-turn control
(TEC-03X) or control with ON/OFF switch (TEC-05X,
TEC-10CX) ;
OUTPUT CURRENT LIMIT5 (TEC-10CX):
0 -
100%, linear control;
TEC 03 Modes: NORMAL (gain only), FAST (series
resistance compensation) and SLOW (integration unit is
active).
SPEED of RESPONSE (VC Mode):
1% settling time: <80 µs for 10 mV step and
<100 µs for 100 mV step applied to cell model (Re
= 1 MOhm, Rm = 100 kOhm, Cm = 0.1 µF, standard
headstage); <80 µs with 225 V headstage.
POWER REQUIREMENTS:
115 V/230 V AC, 60 W (1.25 A/0.63 A fuse, SLOW).
DIMENSIONS:
19" rackmount cabinet, 19" (483 mm) wide,
14" (355 mm) deep, 5.25"(132.5 mm) high,
weight 11kg.
|
