Omega CMDP Series, Руководство пользователя

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Pressure rating : 5 ATM. Thread size 1.25”-12 UNF
WARNING: Pressure more than allowable rating may cause the housing to
burstand cause serious personal injury
.
Air Velocity : 50 to 900m/min
Optional:
Air Temperature probe dimensions : length 5”, O.D. 0.1875 (3/16”)
Air temperature connection : 4 wire (flying leads)
CMDP Instructional Guide
The CMDP is a single stage chilled mirror hygrometer configured for duct mount, wall mount and OEM application. For
Pipe Mount applications please consult factory. The CMDP requires 24VDC @1 A for power. It is has two 4-20mA
outputs factory scaled for -40C to 60C. The unit also has a RS232 communication connection that can be accessed using
either the Hyper terminal or TeraTerm program which is available on most computers.
Notes: Even though the unit is scaled from -40C to 60C, the unit can only measure to -20C dew point at ambient
temperature conditions (25C). If the dew point is lower than -20C, the user will have to cool the body of the sensor to a
lower temperature. The unit has depression capability of 45C (meaning if at ambient (25C), subtract 45 from 25C and
that will be your lowest dew point (-20C). So, lowering the temperature of the sensor will get you to lower measurable
dew points.
Wiring instructions for the CMDP series
Terminal Block
All wiring is done to the 12-pin terminal block located on the PCB
Pin 1 Tx (RS232)
Pin 2 Rx (RS232)