Model: CD-36D 7.6 Adjustment of Output Signal of the Transmitter
-
31
-
〔NOTE〕 • Conversion Method to the Output Signal from the Indicated Value on the digital display:
The relation between the output signal and the measured value (mg/L) of the residual
chlorine concentration varies with the measuring range of the Transmitter.
If the output signal is specified as 4 to 20mA DC, the output signal changes as follows.
Minimum value of the output signal: 4mA
Range of the output signal: 16mA
On the other hand, if the output signal is specified as 1 to 5V DC, the output signal
changes as follows.
Minimum value of the output signal: 1V
Range of the output signal: 4V
Therefore, the output signal (mA or V) can be obtained according to the following
equation.
Output Signal
(mA or V)
=
Range of
Output Signal
Indicated Value on the
digital display (mg/L)
Maximum Value of the
measuring range (mg/L)
Minimum Value
of Output Signal
+
[Example 1] Output Signal specified····· 4 to 20mA DC
Measuring range ··············· 0 to 1mg/L
Indicated Value················· 0.8mg/L
Output Signal = 16mA
×
0.8mg/L
1mg/L
+ 4mA = 16.8mA
[Example 2] Output Signal specified····· 1 to 5V DC
Measuring range ··············· 0 to 3mg/L
Indicated Value················· 1.0mg/L
Output Signal = 4V
×
1.0mg/L
3mg/L
+ 1V = 2.3V
⑨ Disconnect the ammeter. ⋅⋅⋅⋅⋅⋅ Disconnect the ammeter (or Voltmeter) and connect the lead wires
to terminals “70(+), 71(-)” like before. Then, close the rear cap.
⑩ Return the knob cover in place. ⋅⋅⋅⋅⋅⋅ Put the knob cover back in place and tighten 2 fixing screws
for the knob cover.
To Next Page
Loading...
