ABB AP10X/1 Bedienungsanleitung

—

ABB MEASUREMENT & ANALYTICS | INSTRUCTION MANUAL | IM/AP100 REV. D

AP100 series

pH/redox (ORP) cartridge sensors with water-wash option

Measurement made easy

For more information

A Data Sheet is also available for free download

from:

www.abb.com/analytical

or by scanning this code:

Search for or click on

Data Sheet

AP100

pH/Redox (ORP) cartridge sensors

with water-wash option

DS/AP100-EN

—

AP100 series

pH/redox (ORP)

cartridge sensors

Electrical safety

This equipment complies with the requirements of CEI/IEC

61010-1:2001-2 ‘Safety Requirements for Electrical Equipment

for Measurement, Control and Laboratory Use’. If the

equipment is used in a manner NOT specified by the Company,

the protection provided by the equipment may be impaired.

Symbols

One or more of the following symbols may appear on the

equipment labelling:

Warning – refer to the manual for instructions

Caution – risk of electric shock

Protective earth (ground) terminal

Earth (ground) terminal

Direct current supply only

Alternating current supply

Both direct and alternating current supply

The equipment is protected through double

insulation

Information in this manual is intended only to assist our

customers in the efficient operation of our equipment. Use of

this manual for any other purpose is specifically prohibited and

its contents are not to be reproduced in full or part without

prior approval of the Technical Publications Department.

Health and safety

To ensure that our products are safe and without risk to health,

the following points must be noted:

• The relevant sections of these instructions must be read

carefully before proceeding.

•Warning labels on containers and packages must be

observed.

•Installation, operation, maintenance and servicing must

only be carried out by suitably trained personnel and in

accordance with the information given.

• Normal safety precautions must be taken to avoid the

possibility of an accident occurring when operating in

conditions of high pressure and/or temperature.

• Chemicals must be stored away from heat, protected from

temperature extremes and powders kept dry. Normal safe

handling procedures must be used.

• When disposing of chemicals ensure that no two chemicals

are mixed.

Safety advice concerning the use of the equipment described in

this manual or any relevant hazard data sheets (where

applicable) may be obtained from the Company address on the

back cover, together with servicing and spares information.

CONTENTS

1 INTRODUCTION ............................................................. 2

1.1 Purpose ............................................................... 2

1.2 Cartridges and Cartridge Systems ...................... 2

2 INSTALLATION............................................................... 4

2.1 Typical Installation ............................................... 4

2.2 Water Supply for Water Wash Systems .............. 5

2.3 Preparing the Electrode Cartridge....................... 6

2.4 Installing the Electrode Cartridge ........................ 6

2.4.1 In-line pH Systems .................................. 6

2.4.2 Submersible Systems (pH and Redox) ... 7

2.4.3 Dip Systems (pH and Redox).................. 8

2.4.4 Cable Termination ................................... 9

3 CALIBRATION ................................................................ 9

4 MAINTENANCE ............................................................ 10

4.1 General Cleaning .............................................. 10

4.2 Liquid Junction and Electrolyte Level ................ 10

4.2.1 Replacing Liquid Junction ..................... 10

4.2.2 Checking Electrolyte Level .................... 10

4.3 Storage of the Electrode.................................... 10

5 SPARES ........................................................................ 11

1 INTRODUCTION

1.1 Purpose – Figs. 1.1 and 1.2

This instruction manual describes the installation and

maintenance of the AP100 Series Industrial pH and Redox

(ORP) Electrode Cartridge Systems.

A – Electrode In-line System C – Offset Ported Flowcell System

1.2 Cartridges and Cartridge Systems

Fig. 1.1 shows schematic layouts for in-line and dip systems.

Fig. 1.2 shows unit dimensions and identifies cartridge system

installations.

epyTegdirtraC 101PAdehcatedelbaC,tenoyaB

201PAdehcattaelbaC,tenoyaB

301PAdehcatedelbac,ni-wercS

401PAelbisrembuS

sepyTrosneS 1/X01PA001ot0,ssalgdradnatS °Hp41ot0,C

2/X01PA001ot0,ssalgdradnatS °hsaWretaWsulpHp41ot0,C

3/X01PA07ot0,ssalgecnatsiserwoL °Hp11ot0,C

4/X01PA07ot0,ssalgecnatsiserwoL °hsaWretaWsulpHp11ot0,C

5/X01PA)PRO(xodeR

6/X01PAhsaWretaWsulp)PRO(xodeR

Fig. 1.1 System Schematics

Support Chain

Mains in

Current Output

Relays

Current Output

Mains in Mains in

Current Output

Relays Mains in

Current Output

Relays

Current Output

Mains in

Tube not supplied.

Water

Wash

from

Solenoid

Valve

D –Submersible System E –Typical Water Wash System

B –Electrode Dip System

…1 INTRODUCTION

Fig. 1.2 Overall Dimension in mm (in)

Ø 48 (1.875)

200 (7.875)

See note

176 (7)

86 (3.375)

See note

Ø 48

(1.875)

75 (3)

102 (4)

Note.Allow an additional 130 (5.125) for connectors

and cartridge removal.

" BSPT

Female Thread

1" BSP or 1" NPT

Female Thread

AP101/2/3 –In-Line Flow System

Dimension A

(Overall Length)

Ø 63 (2.5)

Dimension A

7674 – 1060 (41.75)

7675 – 2060 (81.10)

7676 – 3060 (120.50)

AP103 –Dip System

Cable

Anchor point for

additional support

(light chain or

flexible cable)

Ø 48 (1.875)

176

(6.92)

101

(3.97)

Ø 27.9

(1.10)

AP104 –Submersible System

OUT

3/8" NPT

Male Stud

Couplings

(not supplied)

40 (1.57) 62 (2.44)

115 (4.53)

216 (8.50)

Ø 65 (2.56)

AP101/2 –Offset Port In-Line System

2 INSTALLATION

2.1 Typical Installation

A typical installation is shown in Fig. 2.1, with offset ported

flowcell arrangements illustrated in Fig. 2.3. A recommended

installation for samples which may have entrained air or are

subject to intermittent flow is shown in Fig. 2.2.

Fig. 2.3 Installation of Offset Ported Flowcell Assembly

OUT

in NPT

Male Stud Couplings

(not supplied)

Clamp (Optional)

Recommended clamps

(not supplied)

Fig. 2.1 Typical Installation

To ensure that the cartridge

is always in solution.

To prevent spillage

when cartridge is

removed.

Sample Flow

Drain

Fig. 2.2 Recommended Installation for Samples with Entrained Air or Intermittent Flow

To prevent spillage when

cartridge is removed.

Approximately 15°

Vent

Point B must be lower than point A

to ensure that the cartridge is always

in solution. Drain

Install a suitable solenoid valve to

the mains water supply feed.

Connect a suitable length of 1/4in. i.d. p.v.c. tube to the outlet of the

solenoid valve. This tube terminates at the electrode installation point. Push the quick-fit

connector supplied, onto

the free end of the tube.

Note that the quick-fit

connector incorporates a

cut-off valve.

To water supply – see

Important Note and

Caution, above.

Suitable Solenoid Valve (user supplied)

2 INSTALLATION…

Fig. 2.5 Location ofWater Wash Nozzle

Sensor

Water Wash

Nozzle

Liquid

Junction

Note. It is advisable to use a suitable

hose clamp.

Fig. 2.4 Installing the Water WashWater Supply

2.2 Water Supply forWaterWash Systems –Fig. 2.4

and 2.5

Important Note. Installation must only be carried out in

accordance with the local water authority and council

bylaws.

Caution. The maximum water pressure at the electrode

should not exceed 4 bar. At NO time should the sample

pressure be allowed to exceed that of the water wash

water supply.Fit a non return valve if this possibility exists.

Information. As all quick-fit connectors used in Water

Wash systems incorporate cutoff valves, tubes may

subsequently be disconnected on operational equipment

without sample loss or water wash discharge.

Note. For optimum performance of the Water Wash

functioninflow systems,thesamplepressureshouldbeat

least 2 bars lower than that of the water wash water

supply.

Thewater supply for the waterwash system mustcome froma

suitable supply via a solenoid valve.The general specification

for the solenoid valve is:

Brass body: 2/2, NC

Orifice size: 3.0 / 4.0 mm

Port size: 1/8" – 1/4" BSP

Pressure: 0 to 6 bar

Coil: 110/115 V a.c. or 230/240 V a.c.50/60 Hz

Before fitting the electrode cartridge system, install the water

supply as shown in Fig. 2.3.

Note. See Fig. 2.4 for recommended tubing.

Fit cartridge –

see Section 2.4.

6Calibrate –

see Section 3.

3Rinse with

demineralised

water.

Unwind adhesive tape.

Pull off

protective

cap.

Shake gently

to dislodge air

bubbles.

2.3 Preparing the Electrode Cartridge –Fig. 2.6

Important Note.Beforepreparing the electrodecartridge,

read through Section 2.4 to become familiar with the

appropriate installation procedure.

The procedure in Fig. 2.6A is appropriate for both pH and

redox (ORP) electrode cartridges. The cartridge is supplied

with a protective cap filled with a 7 pH buffer solution and

should not require pre-conditioning; it is ready for immediate

use.

…2 INSTALLATION

2.4 Installing the Electrode Cartridge –Fig. 2.6

Caution

• Ensure an‘O’ring is fitted to seal each cable connector.

• Tighten each plug to ensure a good seal. It is vital that

the terminations are kept dry at all times.

• Ensure the cable is fed through the dip system tube

before the cable is connected.To avoid the risk of damp/

corrosive air damaging the cable plugs, connect to the

electrodes as soon as possible.

2.4.1 In-line pH Systems

a) Fit the flow cell into the pipeline observing all safety

precautions. Fit isolating valves where necessary to

enable safe access to the sensor for maintenance

purposes.

b) Ensure that all connections are tight.

c) Connectthetagged end ofthecabletothe 4600 SeriespH/

Redox meter – see Fig. 2.7 and Table 2.1.

Grey

Blue

Red White

Measuring

Electrode

Reference

Temp.

Comp.

Measuring

Electrode

Reference

Grey

Co-ax Inner

A –pH Systems

B –Redox (ORP) Systems

Black

Fig. 2.7 CableTermination –4600Transmitters

Fig 2.6 Removing the Protective Cap

Note. Retain protective cap and tape for future use.

2 INSTALLATION…

elbaCmetsyS 40364653

gnirusaeM edortcelE )xaocforenni( 211

ecnerefeR )kcalb( 49

.pmoC.pmeT )der( 67

.pmoC.pmeT )etihw( 58

.pmoC.pmeT )der( 76

Table 2.1 Series 4600 Connection Equivalents

d) For cable detached versions

Fit the cable connector plugs to the matching colour

sockets – blue to blue, red to red, as appropriate. See Fig.

2.8 inset for tightening and releasing the connector plug.

e) Calibrate (pH only) – see Section 3.

f) For water wash versions

Snap on the water feed pipe from the solenoid valve – see

Fig. 2.9, and visually check water cleaning action by

switching on the water wash option on the 4600

transmitter. There should be a vigorous jet of water

sprayed across the glass membrane (pH), or platinum

(redox) .

g) Ensure that all pipeline connections are securely fitted.

Apply PTFE tape to the threads of the 1" NPT cartridges to

effect a water tight seal, and check that the ‘O’ ring and

sealing area are clean on bayonet cartridge versions.

h) Fittheelectrodecartridgetotheflowcell(screworbayonet

action) – see Fig.1.2.Avoid excessive twisting of the cable

on screw-type cartridges by disconnecting the cable from

the electrode before screwing it into the flow cell.

Fit connector plug on completion.

2.4.2 Submersible Systems (pH and Redox)

a) Connect the tagged end of the cable to the 4600 Series pH

transmitter – see Fig. 2.8 and Table 2.1.

Note. It is strongly recommended that a supporting chain

is attached to the anchor point to remove any strain on the

signal cable.

b) Calibrate (pH only)– see Section 3.

c) Immerse electrode into the solution to be measured.

Push on firmly

to connect.

To release, press

the metal catch

and the connector

is ejected.

2Quick-fit

Connector

Tube to

solenoid

valve

Fig. 2.9Water Wash System –Quick-fit Connection

Fig. 2.8 CableTermination –Electrode Connections

Red Measuring Electrode

Blue Temperature Compensator

Red Electrode

Push

down

firmly

One full turn

clockwise

to tighten

To Connect To Disconnect

One full turn

counter

clockwise to

slacken Pull

Off

A –pH Electrode Cable Termionation

B –Redox (ORP) Cable Termionation

2.4.3 Dip Systems (pH and Redox) –Fig. 2.10

…2 INSTALLATION

Fig. 2.10 Dip System Assembly

e. Push the end cap

into the dip tube firmly,

tighten the gland nut

, and connect the cable

to the 4600 Series pH/redox transmitter (see

Fig. 2.8 and Table 2.1).

f. If a water wash system is fitted:

i) snap the quick-fit connector protruding from

the bottom of the dip tube, onto the cartridge

connector

. Also, snap on the water feed

pipe

from the solenoid valve onto the

connector at the top of the dip tube.

ii) Visually check the water cleaning action by

switching on the water wash option on the

4600 transmitter. There should be a vigorous

jet of water sprayed across or onto the glass

or platinum.

iii) Also ensure that no leaks occur at the tube

connectors as they could cause damage to

the system.

g. Push the adaptor

into the end of the dip

tube

firmly to ensure a good seal.

h. Calibrate (pH only) – see Section 3.

a. Pull out the 'O' ring sealed end cap

from the dip

tube (If water wash has been ordered, there will be a

water wash tube connected to the connector insert

in the cap.

b. Pull out the 'O' ring sealed adaptor

from the other

end of the dip tube, and using PTFE tape on the

threads of the cartridge, screw the cartridge

fully

into the adaptor

Caution. It is essential that PTFE tape is used around

the thread on the cartridge to ensure a watertight seal.

c. Fit the cable connector plug(s)

to the matching

colour electrode socket(s) – blue to blue, red to red,

as appropriate – see Fig. 2.7A for pH and Fig. 2.7B

for Redox. See Fig. 2.7 inset for tightening and releasing

the connector plug(s).

d. Loosen the gland nut

in the end cap

, and after

feeding the water wash tube (if fitted) down the dip

tube, thread the other end of the cable through the

dip tube and end cap cable gland

Electrode Cable to

Transmitter

Water Wash Feed Pipe

from Solenoid valve

Note. The Water Wash delivery tube 9is

supplied fitted to the connector insert @. The

tube also has hose clamps at both ends.

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