RADIANQBIO INSTRUMENT www.radian21.com
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7-2. How to use comparison ouput function
For comparison output function, there are 4 different modes such as Decision, High
limit, Low limit, Low&High limit. It displays through the relay of rear panel comparing
each setup value.
On limit mode, Hysteresis can be used.
To set up the setting value, please use the key on the front panel..(page21)
1) Decision mode : Measured Value ≤ Lower limit setup value ⇒ RY1 ON (Low)
Measured Value ≥ Upper limit setup value ⇒ RY3 ON (Hi)
Lower limit setup value < Measured value < Upper limit setup value
⇒ RY2 ON (OK)
2) High limit mode : Measured Value ≥ RY1 setup value ⇒ RY1 ON
Measured Value ≥ RY2 setup value ⇒ RY2 ON
Measured Value ≥ RY3 setup value ⇒ RY3 ON
Measured Value ≥ RY4 setup value ⇒ RY4 ON
Measured Value < RY1 setup value – Hysteresis value⇒ RY1 OFF
Measured Value< RY2 setup value - Hysteresis value⇒ RY2 OFF
Measured Value < RY3 setup value – Hysteresis value⇒ RY3 OFF
Measured Value< RY4 setup value - Hysteresis value⇒ RY4 OFF
3) Low limit mode : Measured Value ≤ RY1 setup value ⇒ RY1 ON
Measured Value ≤ RY2 setup value ⇒ RY2 ON
Measured Value ≤ RY3 setup value ⇒ RY3 ON
Measured Value ≤ RY4 setup value ⇒ RY4 ON
Measured Value > RY1 setup value + Hysteresis value⇒ RY1 OFF
Measured Value > RY2 setup value + Hysteresis value⇒ RY2 OFF
Measured Value > RY3 setup value + Hysteresis value⇒ RY3 OFF
Measured Value > RY4 setup value + Hysteresis value⇒ RY4 OFF
4) Low & High limit mode
Measured Value ≤ RY1 setup value ⇒ RY1 ON
Measured Value ≤ RY2 setup value ⇒ RY2 ON
Measured Value ≥ RY3 setup value ⇒ RY3 ON
Measured Value ≥ RY4 setup value ⇒ RY4 ON
Measured Value > RY1 setup value + Hysteresis value ⇒ RY1 OFF
Measured Value > RY2 setup value + Hysteresis value ⇒ RY2 OFF
Measured Value < RY3 setup value - Hysteresis value ⇒ RY3 OFF
Measured Value < RY4 setup value - Hysteresis value ⇒ RY4 OFF
