The following calibration steps should be taken after setting up the placement of the P4 and other hardware. Make sure to have downloaded, installed, and done your basic setup on GHL Control Center (GCC) via USB connection.
(Before going any further equalize all calibration fluids to your tanks normal running temperature. You can do this by taking the containers putting them in a zip lock bag, close the bag, and allow the bottles to float inside the bag in your tank/sump for 30 minutes. Leave all the bottle closed tight during this time. Leave floating until its time to calibrate each probe.)
STEVO's QUICK SENSOR CALIBRATION GUIDE
(I am not responsible for anything. Use this at your own risk. GHL's programming manual was used to build this guide, but its not a copy and paste.)
Temperature Sensor
- Connect the sensor to the P4
- Install sensor into tank/sump
- Do not manually calibrate/adjust temperature sensor at this time.
pH sensor calibration
- connect the sensor to the P4
- On your P4 arrow down to "sensor settings" and push enter
- Arrow down to "pH-value 1" and push enter
- Arrow down to "calibration" and push enter
- Enter the "calibration tolerance (choose 1)" and push enter
- Enter "calibration value 1" (7.00pH)
- Enter "calibration value 2" (9.00pH)
- Get your calibration fluid of pH 7.00 out of the bag
- Open the bottle and place on the table/flat surface
- Put pH sensor into the calibration bottle and push enter. Wait while the sensor calibrates. You will hear a tone when the calibration is complete.
- Repeat steps 8-10 for pH 9.00 calibration fluid, and save "YES".
- Take sensor out of calibration bottle, rinse off the sensor in a cup of tank water, gently wipe down, install probe into your tank.
Redox sensor calibration
- Dont connect the sensor to P4 yet.
- On P4 arrow down to "ReDox 1" and push enter
- Arrow down to "calibration" and push enter
- Enter "calibration tolerance (choose 1)" and push enter
- Enter "calibration value 2" (220mV) and push enter
- Insert the included "null plug", push enter and wait for a tone
- Connect the sensor to the P4
- Get the 220Mv calibration fluid out of the floating bag, open it on a table/flat surface, put ReDox probe into solution, and push enter. Wait for tone, and save "YES".
- Take sensor out of calibration bottle, rinse off the sensor in a cup of tank water, gently wipe down, install probe into your tank.
Conductivity sensor calibration
- Connect the sensor to the P4
- On your P4 arrow down to "sensor settings" and push enter
- Arrow down to "conductivity (S) 1" and push enter
- Arrow down to "calibration" and push enter
- Enter the "calibration tolerance (choose 1)" and push enter
- Enter "calibration value 2" (50.00mS) and push enter
- Arrow down to "temperature - sensor 1" and push enter
- Enter "temperature of calibration fluid" (this should be what your temp sensor is reading if calibration fluid has been properly equalized prior) and push enter
- Hold sensor in the air, push enter, wait for tone
- Hold sensor in calibration fluid, push enter, wait for tone, save "YES".
- Take sensor out of calibration bottle, rinse off the sensor in a cup of tank water, gently wipe down, install probe into your tank.