Hach ORBISPHERE 51 Série Manuel D'utilisation Simplifié page 24

1. Push the maintenance tool (square sides upmost) as far down as possible over the new sensor
spot. Continue to push down on the tool and turn gently until the square sides of the tool and
the square slots of the sensor spot engage. The tool should then drop into position.
2. Make sure the sensor collar is as far down as it will go, so that the top of the collar is aligned
with the base of the sensor head.
3. Take the combined maintenance tool and sensor spot and place it in the end of the sensor.
4. Turn the tool clockwise to screw in the new sensor spot, finger tight. Do not over-tighten. Once
secure, pull off the maintenance tool.
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