SDM-CVO4 4-Channel Current/Voltage Output Module
The SDM-CVO4 is a synchronously addressed datalogger peripheral. Datalogger
control ports 1, 2 and 3 are used to address the SDM-CVO4 and send out data that
defines the desired voltage/current output of each of the four channels. The output
levels are set by four values in successive input locations in the datalogger. A total
of up to sixteen SDM-CVO4s or other SDM peripherals may be connected and
addressed from the same three ‘SDM’ ports.
For the CR10/10X, CR23X, CR7 and 21X dataloggers Instruction
103 is used to control the SDM-CVO4. This was introduced in
August 1988 for controlling SDM-AO4 functions. (The SDM-AO4
is an older voltage-output-only peripheral.) Dataloggers purchased
before this date may use a different instruction.
NOTE
The SDM-CVO4 instruction is used with the CR800, CR1000,
CR3000, and CR5000.
2. Specifications
2.1 General Specifications
Compatible dataloggers
:
CR10X, CR800, CR1000, CR3000, CR5000, and
CR7. Also compatible with many retired
dataloggers such as the CR10, 21X, and CR23X.
Operating voltage
:
12 VDC nominal (8 V to 16 V)
Current drain at 12V DC
: Typical active quiescent current 27 or 54 mA,
depending on operating mode (no load on output
ports). To estimate the total current, add the
quiescent current to the sum of all output currents
multiplied by 1.5.
E.g. if each port is at 10 mA output, the total = 54 +
(1.5*4*10) = 114 mA. The device can be shut down
to <0.5 mA with all outputs off.
Maximum Total SDM cable length:
6 m.
Operating temperature:
-25
°
C to +50
°
C standard (-40 to 80
°
C optional)
Size:
176 mm wide x 111 mm high x 24 mm deep.
234 mm wide x 111 mm high x 24 mm deep when
fitted with brackets for mounting in enclosure, etc.
Mounting brackets have two holes at 203.2 mm (8")
spacing for screw fixings.
Weight:
370
g
EMC Status:
Complies with EN55022-1:1998 and EN50082-
1:1998
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