Hanna Instruments HI7640-18 Series Instruction Manual Download Page 7

7

iNST
ALLA
TiON

Possible installation schemes with the relevant mounting accessories

Note:

 Due to the flexible nature of this product, accessories necessary to match 

desired configuration must be purchased separately, such as the  accessories 

mentioned in this manual.

In-line mounting  

with probe saddle

Tank immersion  

with electrode holder

1

2

4

3

5

1

2

4

3

5

6

9

8

7

1

Probe

2

Probe fitting kit

3

Saddle

4

Membrane cap

5

Pipe

1

Probe cable

2

Cable locking system

3

Pipe cap

4

Adjuster

5

PVC pipe

6

Probe body

7

O-ring, Ø 22.2 mm (0.87”) 

8

Membrane cap

9

Protective end cap

When installing the probe into the immersion electrode holder:

1.  Screw the probe into the holder’s threaded end cap (9)

2.  Run the probe’s extension cable through the pipe cap opening (3)

3.  Screw the subassembly onto the PCV pipe (5)

4.  Tighten the cable locking system (2) to secure the cabling

When removing the probe from tank (fish tank, water-treatment tank) or saddle 

and installing in a flow cell, users must consider that water characteristics change, 

as well as pressure or temperature, giving different dissolved oxygen readings 

when taking measurements.

Flow-cell installation

•  Ensure no strong flow velocity past the membrane to maintain membrane 

integrity and prevent unstable readings. Placing the probe in a weir is 

recommended in extremely turbulent aeration basin installations.

•  Position the probe so that it does not trap air bubbles at the membrane cap. 

•  Adjust the flow rate to around 150 L/hour (40 gal./hour) in order to provide 

the DO sensor with the required water movement of 0.01 to 0.03 m/second.

•  Deposits of foreign material should not accumulate within the membrane area.

Summary of Contents for HI7640-18 Series

Page 1: ...INSTRUCTION MANUAL HI7640 18 Series Galvanic Dissolved Oxygen Industrial Smart Probe dedicated to HI510 Process Controller HI7640 1805 SN XXXXXXXXXXXX 0 to 50 ppm mg L T 5 to 50 C p max 3 bar...

Page 2: ...a Hanna Instruments product Please read this instruction manual carefully before using this instrument This manual will provide you with the necessary information for correct use of this instrument a...

Page 3: ...Safety Measures 4 3 General Description 4 4 Main Features 5 5 Specifications 5 6 Preparing for Use 6 7 Installation 6 8 Wiring the Probe to the Controller 8 9 Calibration 9 10 Maintenance 9 11 Access...

Page 4: ...tructions in this manual 3 GENERAL DESCRIPTION The HI7640 18 is a galvanic style oxygen probe series designed for use with the Hanna Instruments HI510 Universal Process Controller The probe is suited...

Page 5: ...5 0 to 50 0 C 23 0 to 122 0 F Temperature accuracy 0 5 C 1 0 F Temperature compensation 5 0 to 50 0 C 23 0 to 122 0 F Body PVDF Sensor type Galvanic cell Cathode Silver Ag Anode Zinc Zn Water movement...

Page 6: ...he fill hole aligned upright slowly insert the sensing tip into the membrane cap so excess electrolyte and any remaining trapped air escapes through the fill hole 9 Screw the membrane cap onto sensor...

Page 7: ...ugh the pipe cap opening 3 3 Screw the subassembly onto the PCV pipe 5 4 Tighten the cable locking system 2 to secure the cabling When removing the probe from tank fish tank water treatment tank or sa...

Page 8: ...thread 8 WIRING THE PROBE TO THE CONTROLLER 1 Run the probe cable through the conduit opening 2 Connect the probe leads to the removable terminal connector marked PROBE Follow the lead markings positi...

Page 9: ...hen displayed followed by Next 4 Submerge the probe into HI7040 Zero oxygen solution and stir gently for 2 3 minutes Wait for the temperature and probe values to become stable The meter will automatic...

Page 10: ...clean the cathode with a lint free cloth 7 Follow section 6 of this manual for filling instructions Long Term Storage Discard any electrolyte solution from the reservoir and flush probe body and reser...

Page 11: ...used Any variation introduced by the user to the supplied equipment may degrade its performance Do not use or store the product in hazardous environments WARRANTY The probes are warranted for six mon...

Page 12: ...World Headquarters Hanna Instruments Inc Highland Industrial Park 584 Park East Drive Woonsocket RI 02895 USA www hannainst com MAN7640 18 Printed in ROMANIA...

Reviews: