Water Monitoring System
User Manual
Page
42
of 82
Ver. 1.1 – Revision March 2022
7.
Validation & Calibration
7.1 Introduction
PH, Turbidity and PAH sensor modules can all be validated and calibrated
using certified calibration standard liquids supplied by Green Instruments.
The calibration kit includes all calibration materials necessary to perform a
validation and/or calibration.
Validation is a normal part of WMS maintenance. Sensor validation must
comply with the WMS planned maintenance program found in section 8.
Calibration will only be required if the sensor validation result deviates by a
value that is greater than the accuracy stated for the given module in section
2.2. The system will notify the user of the result of the validation with either a
“Validation Passed” or “Validation Failed” message.
If the validation is passed, the user can return the system to normal
operation. If the validation fails, the user is required to perform a system
calibration following the on-screen guides and this manual.
Before manually operating the sensors, set the system to “STOPPED” and
“LOCAL” mode. This is done by moving the slider buttons as shown in
Figure 7.1.
Once the system is in “STOPPED” and “LOCAL” mode, it is safe to operate
and/or maintain the system.
ATTENTION
You must check and ensure that the web viewer is not activated and in
use before performing validation/calibration procedures to avoid risk of
unintentional disturbance during these procedures.
