5 AB-6650
(2/2)
Item Specification
Blow-down valve control operation
Differential (DIF)
Valve open
Valve closed
Setpoint (SP)
Lower Higher
Conductivity high limit alarm
(Alarm is turned on by the
conductivity over OHSP for 3
consecutive minutes.)
High limit of differential (HDIF)
Alarm ON
Alarm OFF
High limit alarm setpoint (OHSP)
Lower Higher
Conductivity error detection
(for sensor damage/
malfunction detection)
Range SP
200 mS/m 10 mS/m
400 mS/m 20 mS/m
Alarm ON
Alarm OFF
Setpoint (SP)
Lower Higher
Alarm output operation
Either of these alarms is
output to the external device
Temperature error detection
(for sensor damage/
malfunction detection)
Alarm ON
Alarm OFF
-15 °C 65 °C
Lower Higher
Setting to N.O.
• Closes when temperature
error is input.
• Opens when interlock input
(DI) contact opens.
Differential (DIF)
Contact closed
Contact open
Setpoint (SP)
Lower Higher
Temperature control DO
contacts operation
(Temperature control DOs are
optional depending on the
model numbers.)
Setting to N.C.
• Opens when temperature
error is input.
• Continues open and close
operation when interlock
input (DI) contact opens.
Differential (DIF)
Contact closed
Contact open
Setpoint (SP)
Lower Higher
∗ Setting N.C. is for anti-freeze electric heater. Operating status therefore is
maintained even when the cooling water pump is shut down. To prevent the
heater from heating when no water is left, provide an additional circuit.
4 mounting screws (M4) Accessories
1 label for the maintenance history of the 4-electrode sensor
Rain-proof case Part No. DY3001A2002
Extension cable for
4-electrode sensor
Part No. 81301475-001 (10 m long) / 81301475-002 (20 m long) /
81301475-003 (30 m long)
DIN rail mounting bracket Part No. 83104567-001
Replacement plates Part No. 83167610-001
2 plates, for mounting inside the former version of the rainproof case
(sold until March 31, 2005)
Varistor assembly Part No. 83167751-001
(To connect the varistor to MIZCON Plus, connect the ring terminals of
the varistor to the terminals 1 to 3 of the MIZCON Plus.)
Provide the varistor if the MIZCON Plus is installed in a location where
thunder often occurs.
Converter Model RYY792A3077 (Conversion between 4-20 mA current output
and 0-100 mV voltage output)
The converter is used to replace MIZCON Model RY7010B1008 with
the MIZCON Plus.
4-electrode sensor Part No. 81301430-001 (4 m long cable) / 81301430-002 (20 m long)
Parts and auxiliary device
requiring separate order
Resistor for field inspection Part No. 83167745-001
Conductivity
Conductivity
Temperature
Conductivity
Temperature
Temperature
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