INSTRUCTION MANUAL
HBPH-MK2
–
pH sensor
Suited for brine/NH3 Leakage detection
DIFFERENTIAL 2-WIRE (4-20 mA) pH Sensor
TABLE OF CONTENTS
General Information ...................................................................................................................................................................... 2
Specifications ................................................................................................................................................................................. 2
Installation ..................................................................................................................................................................................... 3
Cold Liquid applications ................................................................................................................................................................. 3
Electrical connection ...................................................................................................................................................................... 4
Storage ........................................................................................................................................................................................... 4
Maintenance and calibration ......................................................................................................................................................... 4
Calibrating the Sensor .................................................................................................................................................................... 5
Checking the Sensor ....................................................................................................................................................................... 5
Probe Cleaning ............................................................................................................................................................................... 6
Replacement of Salt Bridge ............................................................................................................................................................ 7
Troubleshooting ............................................................................................................................................................................. 7
Parts and Accessories .................................................................................................................................................................... 8
Sensor Return ................................................................................................................................................................................ 8
Further Information ....................................................................................................................................................................... 8
Included in the package
•
Sensor with cable
Replacement salt bridge
Liquid for flushing and filling
Salt bridge kit
Page 1: ...on 3 Cold Liquid applications 3 Electrical connection 4 Storage 4 Maintenance and calibration 4 Calibrating the Sensor 5 Checking the Sensor 5 Probe Cleaning 6 Replacement of Salt Bridge 7 Troubleshoo...
Page 2: ...period thoroughly clean the sensor put a piece of cotton ball with a few drops of water into the protective cap and place it on the sensor This keeps the junction from drying out which causes slow re...
Page 3: ...duit Do not run the power cable or control cables in the same conduit with the probe interconnect cable 3 Remove the protective plastic cap from the end of the probe before placing in service 4 The se...
Page 4: ...measurement If you use the sensor for a precise measurement of the pH value you need frequent checks of the calibration The drift of the sensor is maximum 0 03pH per day but that is the maximum figure...
Page 5: ...Allow the temperature of the buffer and probe to stabilize at room temperature 4 Write down the reading on the multimeter as mApH7 in the example called mApH7 The reading should be between 11 and 13 m...
Page 6: ...ied the probe is defective or the salt bridge needs to be replaced 8 If the span of the probe drops below 2 75mA than the probe still can be used Adjustments will have to be made to the receiving devi...
Page 7: ...th pH 7 solution or distilled water 5 Refill the chamber with a reference solution supplied with the salt bridge up to the tip of the electrode inside the chamber DO NOT OVERFILL It is important to le...
Page 8: ...iled Sensor is non repairable The output is outside of 4 20mA The sensor electronic has failed Sensor is non repairable Parts and Accessories Description Part 3 pack salt bridge replacement kit HBPH S...
