Qioptiq DIV 20 Instruction Manual - page 2
2
1. Safety remarks
In order to avoid unwanted damage or hazards, please read this instruction
manual carefully before operation.
The DIV 20 has to be operated by trained personel only !
The pulse amplifier DIV 20 is specially designed to drive capacitve loads with
an extremely fast rise-time and high repetition rate. A high voltage of up to
600V can be present at output sockets (Pulsausgang) and (Offsetausgang) of
the driver and the maximum current may be as high as 8 A. Never touch any
plugs when the modulator cable is connected to the DIV 20. A voltage up 600 V
may be accessible in case of a damage.
The connection to and operation of the protective ground has to be
ensured always !
Switch on the DIV 20 only after the cable connection between modulator and
driver is established. Before connecting the cable, make sure that the line
switch (S4) is off. Before disconnecting the cable, the DIV 20 must be in the off
position for at least 5 minutes, in order to guarantee that the grounding
capacitors are completely discharged.
For safety reasons we recommend establishing the following settings prior to
switching on:
1) control knob DC-Offset (PO) to minimum (fully counter clock-wise)
2) mode switch (S2) to LOW.
Any contact with water has to be avoided (IP20-class product)!
Do never operate the DIV 20 with opened housing !
Rapairs have to be done by qualified representatives of the manufacturer
only !
2. General remarks
The pulse amplifier DIV 20 is a digital driver for electro-optic modulators (EOM).
It transforms a low voltage (TTL) input signal into a high voltage output with an
extremely fast rise-time. The amplitude of the high voltage pulses is user-
controllable. A variable offset voltage permits selection of the optimum working
point. Signal voltage and offset voltage work on separate electrodes of the
modulator. User controllable functions cable connectors and adapters are
designed for use of the DIV 20 with the laser modulators LM 0202 and LM 13.