MCP Delay Line (Version 6.2.90.5)
Page 29 of 80
1.
Switch off the high voltage on the detector
2.
Verify that the noise level is low and that there are no signals from the CFD outputs.
3.
Press the walk button for at least 1 second.
4.
Wait at least 15s for the automatic walk adjust
5.
Apply voltage to the detector and start/resume your measurement
(see also the “getting started” chapter of the detector manual)
2.6.4
Connecting and operating the ATR19
Before connecting the
ATR19
to any cable please ensure that the AC mains power from your socket complies with the
setting of the switch on the rear panel.
The setting “230” complies with a mains power of 200-250V AC, 50-60Hz, main fuse: 250mA, time lag
The setting “115” complies with a mains power of 100-125V AC, 50-60Hz, main fuse: 500mA or 630mA, time lag
Warning: A wrong setting can lead to damage of the ATR19 and/or any connected appliances
After connecting the mains power through the standard mains cable input on the rear panel turn on the module with the
switch on the front panel. Please verify that the DC voltages on the reading points on the front panel are between 5.5V and
6.5V - positive and negative - and that all LEDs are lit. If the DC voltages are not present please check the mains voltage and
the main fuse in the mains connector, possibly the fuse must be replaced. The main fuse is located above the mains input
socket..
If the main fuse, the switch position and the main power seem to be ok, open the ATR19 top lid and check the separate fuses
for positive DC (1.6A, swift) and negative DC (2.5A, swift), possibly the fuse must be replaced. The fuses are located on the
voltage adapter board.
If you want to use the external ±6V DC input instead of the internal mains power adapter please follow the steps in chapter
2.6.5 for opening the
ATR19
and remove the inside cable end from the mains adapter to the external input. If you have
ordered the
ATR19
for use without AC mains adapter, the cable is already connected in the correct way. For operating the
ATR19
you need to supply DC voltages between -6V to pin 5 and b6V to pin 8 (2A each), pin 1 and 2 must be
grounded.
The
ATR19
can also be supplied externally with ±5.2V (or ±5V) via the same connector and according pins. In this case the
jumpers JP7 and JP10 (located under each
DLATR
board) have to be removed.
Attention:
A few of the earliest
ATR19
, which have been delivered to customers, allow an external DC supply only with
±5.2V (JP7 and JP10 removed). Please contact
RoentDek
to insure that your module can also be operated with ±6V and
JP7 and JP10 set.
Figure 2.36: Rear panel of the ATR19
Before you connect the input cables to the LEMO connectors on the
ATR19
front panel make sure that the detector voltages
are switched off and that you are aware of the input jumper settings for the respective channels and the active input
connectors (see chapter 2.6.1).
In the default versions of the
ATR19
ch1 and ch2 (inverting) are reserved for the (positive) MCP signal input via the “In-”
LEMO connector, while the other channels are non-inverting for signals from the delay line ends which shall be supplied
through the “In+” LEMO connectors. The delay-line signals are negative if the U
ref
and U
sig
voltages are provided to the
corresponding connectors on the
FT12(16)-TP
as described in the detector manual. If these voltage inputs are interchanged,
the signals from the delay-line will become positive and require connection via the “In-“ inputs and changing the input
jumpers inside the
ATR19
from their default settings (see chapter 2.6.1).
*
adequate DC supply and cabling can be achieved from the
SPS1
and the
HV2/4
modules with corresponding cable.
Summary of Contents for DLD120
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