Campbell Hausfeld SDM-CVO4 Manual Do Utilizador

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.  

The SDM-CVO4 instruction is used with the CR800, CR1000, 
CR3000, and CR5000.  

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