TEC-B-01 User Manual
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version 1.1
page 9
(18)
C
EL
x10 mV
connector
BNC connector providing the potential of the current electrode.
(19)
ms INTEGRATION
potentiometer
The integrator improves control performance for slower signals. Position OFF disables the integrator.
Setting a time constant by turning the potentiometer clockwise converts the controller into a PI
(proportional-integral) system. Time constant range is 10…0.1 ms.
2.4.
Description of the Rear Panel
A cable is firmly connected for linking the TEC-B-01 amplifier to the bridge amplifier connector TO
TEC-B-01 at the rear panel of the bridge amplifier.
CHASSIS
This connector is linked to mains ground (green / yellow wire, protective earth).
GROUND
This connector is linked to the internal system ground which has no connection to the 19" cabinet
(CHASSIS) and the mains ground to avoid ground loops.
3. Operation
The TEC-B-01 can be operated as a stand-alone device or in conjunction with a modified bridge
amplifier.
3.1.
Stand Alone Operation
The TEC-B-01 can be used as a current pump, e.g. for iontophoresis. The MODE OF OPERATION
switch (#
1
, Figure 1). A voltage signal is connected to the EXT IN BNC connector (#
16
, Figure 1).
This voltage signal is converted into a current signal with a scaling of 1 µA / V. The (mostly
rectangular) shape of the input signal can be influenced by the capacity compensation.
