Omega HX71 Series, Руководство пользователя

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6. Wiring Examples
Current output model HX71-MA, HX71-MA-NB (4 to 20 mA)
Figure 5 - Current Transmitter Wiring Example
Voltage output models HX71-V1, HX71-V2, HX71-V1-NB, HX71-V2-
NB (0 to 1 Vdc or 0 to 5 Vdc)
Figure 6 - Voltage Transmitter Wiring Example
7. Relative Humidity Output Calculations
To calculate % Relative Humidity by measuring the current or voltage
output use the following formulas.
For 4-20 mA output:
% RH = (Current measured in milliamps – 4) ÷ 0.16
EXAMPLE: (11.04 mA – 4) ÷ 0.16 = 44% RH
For 0 to 1 Vdc output:
% RH = (Voltage measured in volts x 100)
EXAMPLE: 0.44 Vdc x 100 = 44% RH
HX71 CABLE
HX71 CABLE
RED WIRE
RED WIRE
SHIELD WIRE
SHIELD WIRE
BLACK WIRE
BLACK WIRE
PANEL METER
PANEL METER
POWER SUPPLY
POWER SUPPLY
+
10V
24V
–
50%
50%
+
–
+
–
+
–
WHITE WIRE
HX71 CABLE
HX71 CABLE
RED WIRE
RED WIRE
SHIELD WIRE
SHIELD WIRE
BLACK WIRE
BLACK WIRE
PANEL METER
PANEL METER
POWER SUPPLY
POWER SUPPLY
+
10V
24V
–
50%
50%
+
–
+
–
+
–
WHITE WIRE
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HX71 SERIES
RH Probe/Transmitter