Macurco DVP-120 Manuale Utente

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Revision 0.07 
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2.7  Interfacing Macurco Sensors 
All Macurco CO, NO2 and combustible gas sensors with current loop outputs may be used with the DVP-120. 
Data sheets for the Macurco sensors listed in Table 2-8 are provided as an appendix to this manual. 
 
Power connections to Macurco sensors used with the DVP-120 are polarity-insensitive, since a bridge rectifier 
is connected to the power input terminals.  All sensors used with the  DVP-120  panel  employ screw clamp 
terminal blocks for power and signal connections. 
 
Polarity of the current loop connections is marked on the printed circuit board of the sensor. 
 
Description 
Order Part Number 
Carbon Monoxide Transducer with solid-
state sensor 
CM-2B 
Carbon Monoxide Transducer with 
Electro-chemical sensor 
CM-3 
Nitrogen Dioxide Transducer with a 5A 
relay 
ND-2 
Combustible Gas Transducer 
GT-11A 
Table 2-8 Macurco Transducers