24
43-TV-25-30 Iss.6 GLO Aug 07 UK
Transmitter Power Supply Card
The
Minitrend QX
Transmitter power supply
option is
24V DC 200 mA and is fitted to the power supply card
within the unit. Connection is made via a 2-way connector
at the rear of the unit, the mating half is supplied with this
option. For connector position see
. The 24V transmitter power supply is not isolat-
ed from the recorder, and is not referenced to ground.
The
Multitrend SX
Transmitter power supply
option is 24V DC 1 A and is fitted below
the power supply card within the unit. Connection is made via two 10-way connectors, see
, mating halves supplied with this option. The
Multitrend SX
trans-
mitter power supply is isolated from the recorder.
A red LED light will illuminate when there is voltage on the connectors. The LED is situated
between the two connectors at the back of the unit.
The
eZtrend QXe
has a 24V DC 130mA Transmitter Power Supply card that can be fitted
as an option. Connection is made via a 2-way connector at the rear of the unit, the mating
half is supplied with this option. For connector position see
. The
24V transmitter power supply is not isolated from the recorder, and is not referenced to
ground. The option card also has an RS485 Modbus port and a USB port.
Recommended wire size for termination connector 22-12 AWG (22-14 SWG).
Alarm Relay Cards & Digital Input/Output Cards
The
Alarm Relay Cards
and the
Digital Input/Output Cards
are both options available for
the
Minitrend QX
,
Multitrend SX
and the
eZtrend QXe
recorders.
To fit these option cards into the
eZtrend QXe
recorder it requires an expansion card to
interface to the recorder.
See “QXe Analogue Input (Standard) card” on page 19.
All Alarm Relay card outputs provide 240V AC isolation channel to channel and channel to
recorder. Digital Input/Outputs will provide isolation to 100V AC test voltage (not for mains
connection).
All digital inputs have volt free contacts, and are sampled at 10Hz max.
Minitrend 24V DC TXP
24V
0V
Figure 2.9 Transmitter Power Supply card for the
Multitrend SX
recorder
24V
0V
LED
Содержание Minitrend QX
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