16
SENSOR PREP
ARA
TION & INST
ALLA
TION
To replace the Smart Cap:
1. Remove the expired Smart Cap from the sensor by squeezing the cap
at the cutout arrow and pulling it off the sensor body (do not twist).
2. Remove the used o-ring by rolling it off the sensor.
3. Clean the o-ring groove and lens with a soft tissue followed by the
lens cleaning wipe.
4. Remove the new o-ring from the replacement cap kit and slide on the
sensor body (do not roll or twist the o-ring).
5. Remove the syringe plunger, cut the top off supplied sachet with silicone
grease and empty contents into the syringe. Using the syringe, sparingly
lubricate the o-ring with a thin film of the supplied grease. Avoid getting
grease or fingerprints onto the optical window. Do not substitute other
grease or lubricants as it may cause the o-ring to swell.
6. Remove the new optical cap from the replacement cap kit. Align the cutout
arrow on the Smart Cap with the matching guide on the sensor body.
7. Slide and press the Smart Cap onto the sensor body until the cap
snaps in place. Once the cap is installed, it should not be removed
unless a new cap is required.
8. Place the sensor in purified water to hydrate the Smart Cap before use.
EC Sensor
The EC sensor does not need to be soaked or hydrated before use. See section 5.4. SENSOR
MAINTENANCE if required.
5.3. SENSOR INSTALLATION
To make installation easier, the sensors have color-coded caps, and the sockets are identified with
colored triangles, corresponding to the colors of the sensors (pH - red; EC - blue; DO - green).
The
HI7698494
probe sensor connector sockets identified with color-coded triangles are:
• Connector 1 (red): pH or pH / ORP sensor
• Connector 2 (green): DO sensor
• Connector 3 (blue): EC sensor
To install the sensors follow the steps below:
1. Remove the protective shield from the probe and set aside.
2. Cut top off supplied sachet with silicone grease and sparingly lubricate the o-ring with a thin film
of the grease. Do not substitute other grease or lubricants as it may cause the o-ring to swell.