YOKOGAWA OX100 - External Instrument and Sensor Connections

<2. Installation >
2-7
IM 11M10A01-01E
2.4.2 ConnectingtoanExternalInstrument
CAUTION
This instrument provides three outputs: 4 to 20 mA DC (signal), “Alarm” contact, and “Fail”
contact.
• 4 to 20 mA DC output from terminals 9, 10: corresponds to O
2
concentration display range 0
to 1000 ppm or 0.1 to 25%. Refer to Section 3.4 below for range setting.
• Alarm contact output from terminals 11, 12: relay contact closes if concentration exceeds
alarm setting.
• Fail contact output from terminals 13, 14: relay contact closes if sensor heater element goes
open circuit.
WARNING
Tominimizethepossibilityofelectricalshock,ensurethatpowersourceiso󰀨beforewiringpowercable.
2.5 InstallationofSensor
CAUTION
• Use the nipple provided as an accessory, mount it horizontally and secure it so that it cannot
vibrate.
• When tightening, for cap use torque of 1 to1.5 N • m, and for other items use torque of 2to
2.5 N • m
WARNING
• Sensorcableshouldbewithin30cmofsensorhousing,andangleofbend(seegure
below) should not be greater than 60°.
• When mounting sensor through a 17 mm hole, mounting plate should be no greater than 4 mm
thick.
4th Edition : Oct. 23, 2019-00