JUMO AQUIS 500 pH, 202560, AQUIS 500 Operating Instructions Manual

Download

JUMO AQUIS 500 pH

Transmitter/Controller for pH, ORP and

- (ammonia) concentration Type 202560

B 20.2560.0

Operating Instructions

2012-04-12/00475451

WARNING:

A sudden malfunction of the instrument, or one of the sensors connected to it, could potentially result in dangerous, imprecise dosing! Suitable preventive measures must be in place to prevent this from happening.

Note:

Please read these Operating Instructions before placing the instrument in operation. Keep the manual in a place which is accessible to all users at all times.

Resetting the brightness of the LC display:

If the brightness/contrast setting has been adjusted so that the display text is no longer legible, the basic setting can be restored as follows:

Switch off the supply voltage. Switch on the supply voltage and immediately press and hold the and

keys simultaneously.

Reset the language to "English":

If the language has been adjusted so that the display text is no longer comprehensible, use the Administrator password, 7485, to reset the language to "English":

Press the key for longer than 3 seconds. Press the key once. Briefly press the key. Enter 7485. Briefly press the key. The required language can then be set in

ADMINISTR. LEVEL / PASSWORD / PARAMETER LEVEL / DISPLAY / LANGUAGE.

PGM

Contents

1 Typographical conventions ...................................................... 6

1.1 Warning signs ..............................................................................................6

1.2 Note signs ....................................................................................................6

2 Description ................................................................................ 7

3 Identifying the instrument version ........................................... 8

3.1 Nameplate ....................................................................................................8

3.2 Type designation ..........................................................................................9

3.3 Scope of delivery .........................................................................................9

3.4 Accessories (in delivery package) ..............................................................10

3.5 Accessories (optional) ................................................................................11

4 Electrical connection .............................................................. 12

4.1 Installation notes ........................................................................................12

4.2 Electrical isolation ......................................................................................13

4.3 General .......................................................................................................14

4.4 Connection .................................................................................................14

4.5 Terminal assignments ................................................................................19

4.6 ISFET-pH combination electrode according to data sheet 20.1050 .........21

5 Mounting .................................................................................. 22

5.1 General .......................................................................................................22

5.2 Surface mounting .......................................................................................22

5.3 Pipe installation set / weather protection roof ...........................................23

5.4 DIN rail installation set ...............................................................................23

5.5 Mounting in a panel ....................................................................................24

6 Operation ................................................................................. 26

6.1 Controls ......................................................................................................26

6.2 LC display ..................................................................................................27

6.3 Principle of operation .................................................................................28

6.4 Measurement mode ...................................................................................31

6.5 Input/output information ............................................................................31

6.6 MANUAL mode / simulation mode ............................................................33

6.7 HOLD mode ...............................................................................................37

6.8 Operator level .............................................................................................38

6.9 Administrator level .....................................................................................38

6.10 Device info .................................................................................................44

6.11 Controller function .....................................................................................44

Contents

7 Commissioning ....................................................................... 46

7.1 Fast start ....................................................................................................46

7.2 Setup examples .........................................................................................47

8 Calibration ............................................................................... 68

8.1 pH electrode ..............................................................................................68

8.2 pH antimony electrode ...............................................................................76

8.3 ORP electrode ............................................................................................76

8.4 Ammonia (NH

)- cell ..................................................................................80

9 Setup program ........................................................................ 82

9.1 Function .....................................................................................................82

10 Eliminating faults and malfunctions ...................................... 83

10.1 Possible faults ............................................................................................83

11 Appendix .................................................................................. 84

11.1 Operator level parameters .........................................................................84

11.2 Parameter explanations .............................................................................90

11.3 Glossary .....................................................................................................94

12 Instrument description ........................................................... 98

12.1 Technical data ..........................................................................................98

12.2 Panel cut-out ............................................................................................101

Ziffern

1-point calibration 43 1-point calibration, ammonia 80 1-point calibration, pH 68, 76, 78 2-point calibration 43 2-point calibration, pH 70 3-point calibration 43 3-point calibration, pH 72

Accessories 10–11 Acidity errors 43 Administrator level 38 Administrator rights 40 Alkaline errors 43 Asymmetrical connection 16–17, 19, 94–95

Basic settings 42 Block diagram 7

Cable routing 15 Cell zero point 43 Conductor cross-sections 12

Date of manufacture 8 Device info 44

Electrical connection 12 Electrical isolation 13, 82 Enable level 40

Fast start 46 Fixing brackets 22

HOLD mode 37

Inputs 19 Installation position 22 ISFET sensor 21, 95, 99

Logbook 44

MANUAL mode 33 MANUAL mode for analog outputs 36 MANUAL mode for switching outputs 33

Measurement mode 27, 31 MIN/MAX values 31 Mounting location 22

Nameplate 8 Normal display 27, 31

Operator level 38 Output level display 32 Outputs 20 Overview of MANUAL mode 34

Panel mounting 24 Parameter level 40 Password 38 Pipe 23 Pipe installation 23 Principle of operation 28

Scope of delivery 9 Sensor connection 16–18 Setup examples 47 Setup interface 82 Simulation mode 33 Simulation of switching outputs 35 Slope 43 slope 86 Sunlight 22 Supply 19, 21 Surface 22 Surface mounting 22 switching function 90 Symmetrical connection 18–19

Terminal assignments 19 Type designation 9

Wash timer 97 Weather protection roof 23

zero point 86

1 Typographical conventions

1.1 Warning signs

1.2 Note signs

Danger

This symbol is used when there may be danger to personnel if the instructions are disregarded or not followed accurately!

Caution

This symbol is used when there may be damage to equipment or data if the instructions are ignored or not followed accurately!

Caution

This symbol is used where special care is required when handling components liable to damage through electrostatic discharge.

Note

This symbol is used when your special attention is drawn to a remark.

abc

Footnote

Footnotes are remarks that refer to specific points in the text. Footnotes consist of two parts:

A marker in the text, and the footnote text. The markers in the text are arranged as continuous superscript numbers.

✱ Action instruction

This symbol indicates that an action to be performed is described. The individual steps are marked by this asterisk. Example: ✱ Remove crosspoint screws.

2 Description

General The instrument is used for measuring/controlling the pH, ORP or NH3-

(ammonia) concentration. The function is switchable on the instrument itself. Depending on the measured variable, combination electrodes (e. g. pH/ORP combination electrodes, gas-sensitive sensors) or split versions (glass/metal electrodes with a separate reference electrode) can be readily connected. Temperature serves as the second input variable, measured by a Pt100/1000 probe, for example. It is therefore possible to implement automatic temperature compensation for the pH and NH

variables.

The instruments are operated using unambiguous keys and a large LC graphics display on which the measurements are clearly legible. The plain-text presentation of the parameters makes it easier for the user to configure the instrument, and also helps in programming it correctly.

Thanks to its modular design, the instrument can be perfectly matched to the specific application requirements. Up to four outputs are available (see the block diagram for the functions).

Typical areas of application

Universal application in water and wastewater engineering, service/process water and wastewater, drinking water and well/surface water, leakage monitoring in refrigeration plant.

Block diagram

Transmitter/controller

2 analog inputs

Input 1: pH / ORP / ammonia concentration

1 binary input

For floating contact Functions:

- key inhibit

- alarm stop

- HOLD

Supply

110—240 V 12 — 24 VACDC 20—30 V AC/DC

Analog outputs (option)

Outputs 1 + 2: 0(4) –20 mA or 0 –10 V

option

Setup interface

Switching outputs (option)

Outputs 3 + 4:

- relay, changeover (SPDT)

User-friendly configuration Reloading of languages Plant documentation

Configurable as analog process value output and/or continuous controller output (PID action)

Configurable as

- limit controller

- pulse width output (PID action)

- pulse frequency output (PID action)

- modulating controller (PID action)

- USP contact

- "Purified water" contact as per Ph.Eur.

- calibration timer run down

standard

Input 2: temperature manual input or automatic Pt100 / Pt1000 / 4 kΩ

Supply

for ISFET sensor

3 Identifying the instrument version

3.1 Nameplate

on the transmitter

Typ: 202560/10-888-000-000-000-23/000

VARTN: 20/00491200

JUMO

Fulda, Germany www.jumo.net

AQUIS 500 pH

AC 110..240V -15/+10% 48..63Hz

< 14VA

F-Nr.: 0168122901012150001

The date of manufacture is coded in the “F-Nr.” (serial number): 0935 means manufactured in year 2012 / week 15

3 Identifying the instrument version

3.2 Type designation

3.3 Scope of delivery

- Transmitter/controller

- 1 bag with accessories

- Operating Instructions

(1) Basic type

202560 JUMO AQUIS 500 pH

Transmitter/controller for pH, ORP, NH

- (ammonia) concentration and temperature

(2) Basic type extensions

10 for panel mounting 20 in surface-mountable housing

(3) Output 1 (for principle measurement variable or continuous controller)

000 no output 888 analog output 0(4) — 20 mA or 0 — 10 V

(4)

Output 2 (for temperature measurement variable or continuous controller)

000 no output 888 analog output 0(4) — 20 mA or 0 — 10 V

(5) Output 3

000 no output 310 relay with changeover (SPDT) contact

(6) Output 4

000 no output 310 relay with changeover (SPDT) contact

(7) Supply voltage

23 110 — 240 V AC +10%/-15%, 48 — 63 Hz 25 20 — 30 V AC/DC, 48 — 63 Hz 30 12 — 24 V DC

±15%

(8) Extra codes

000 none

(1) (2) (3) (4) (5) (6) (7) (8)

Order code /-----/ Order example 202560 / 20 - 888 - 000 - 310 - 000 - 23 / 000

3 Identifying the instrument version

3.1 Accessories (in delivery package)

Contents Designation

3 x plug-in screw terminals

1 x large plug-in link

1 x small plug-in link

1 x cable clip for cable diameter > 5 mm

2 x cable clips for cable diameter < 5 mm

1 x cable clip for cable diameter < 3 mm

2 x pan head screws 3.5x6.5 4 x round spacers for panel mounting 4 x hexagonal nuts for panel mounting

4 x countersunk screws M6x10

4 x fixings

1 x cable gland M12x1.5

1 x sealing ring for cable gland M12x1.5

1 x reducing sealing ring for cable gland M12x1.5

2 x cable glands M16x1.5

2 x sealing rings for cable gland M16x1.5

1 x multiple seal for cable gland M16x1.5

3 Identifying the instrument version

3.4 Accessories (optional)

Type Part n o.

Protection canopy for JUMO AQUIS 500

00398161

Pole-mounting kit for JUMO AQUIS 500

00483664 Support pillar with pedestal base, arm and chain 00398163 PC setup software 00483602 PC interface, including USB/TTL converter and

adapter (USB connecting cable)

00456352

Fixing for suspended fitting 00453191

The pole-mounting kit is needed for mounting the protection canopy.

Using the pole-mounting kit, the JUMO AQUIS 500 can be fitted to a pole (e.g. support pillar or railing).

4 Electrical connection

4.1 Installation notes

❏ The choice of cable, the installation and the electrical connection must

conform to the requirements of VDE 0100 “Regulations on the Installation of Power Circuits with Nominal Voltages below 1000 V” or the appropriate local regulations.

❏ If contact with live parts is possible while working on the device, it must be

completely disconnected from the electrical supply.

❏ Load circuits must be fused for the maximum relay current in each case, in

order to prevent welding of the relay contacts in the event of a short circuit.

❏ The electromagnetic compatibility conforms to EN 61326. ❏ Run input, output and supply cables separately and not parallel to one

another.

❏ Uses shielded sensor cables with twisted conductors. Do not run these

cables close to current-carrying components or cables. Ground shielding at one end.

❏ Sensor leads should be implemented as uninterrupted cables (not routed

via terminal blocks etc.).

❏ Do not connect any additional loads to the supply terminals of the

instrument.

❏ The instrument is not suitable for use in areas with an explosion hazard (Ex

areas).

❏ Apart from faulty installation, incorrect settings on the instrument may also

affect the proper functioning of the subsequent process or lead to damage. Safety devices independent of the instrument should therefore always be provided and should only be capable of adjustment by specialist personnel.

Conductor cross-sections and core-end ferrules

Fitting sizes

The electrical connection must only be carried out by qualified professional persons !

Minimum cross-section

Maximum cross-section

Min. length of core-end ferrule

Without core-end ferrule 0.34mm

2.5mm

10mm (stripped)

Core-end ferrule, no lip 0.25mm

2.5mm

10mm

Core-end ferrule, lip up to 1.5mm

0.25mm

1.5mm

10mm

Core-end ferrule, lip above 1.5mm

1.5mm

2.5mm

12mm

Twin ferrule with lip 0.25mm

1.5mm

12mm

The IP67 enclosure protection for the instrument will only be achieved if each cable is fed into the instrument through a cable gland.

4 Electrical connection

4.2 Electrical isolation

3700 V AC

Setup interface

Supply

30 V AC 50 V DC

Supply for 2-wire transmitter

3700 V AC

Relay contacts

Binary input

Supply for inductive proximity switch

Supply for ISFET sensor

30 V AC 50 V DC

Main input

Analog output 1

Secondary input (Pt100 / Pt1000)

30 V AC 50 V DC

Analog output 2

Not with 12 — 24 VDC supply voltage

4 Electrical connection

4.3 General

Opening the instrument

✱ Remove four screws (1) and swing down the top section.

4.4 Connection

4.4.1 pH combination electrode / ORP combination electrode

Fabricating the connecting cable

✱ Strip the cable as shown in the diagram. ✱ Insulate the exposed shielding with a shrink-sleeve (1), to prevent short-

circuits.

✱ Apply core ferrules to the ends of the conductors.

Core ferrule dimensions see Chapter 4.1 “Installation notes”, page 12.

(1)

4 Electrical connection

Connecting the cables

The electrical connection for the surface-mountable housing is easily accessible when the instrument is folded out.

The connection cable between sensor and transmitter must be a shielded cable with a diameter of 8 mm max. The instrument contains a guide plate that ensures an optimum cable path. The sensor cables are run to the plug-in screw terminals and must have a strain relief.

The cable clip (3) must only be screwed down (see next page) by a 3.5x6.5 pan head screw! A longer screw may cause a hazardous voltage to be contacted to the shielding!

4 Electrical connection

Asymmetrical connection of a combination electrode (standard)

✱ Lead the connecting cables in through the cable glands. ✱ Lay the signal cable as shown in the diagram. Use the cable clip (3) to

clamp the signal cable to the shielding.

✱ Connect the cores as assigned below, and see Chapter 4.5 “Terminal

assignments”, page 19.

✱ Push the plug-in terminals for row 1 (1) and row 2 (2) into the sockets in the

instrument.

Sensor connection

(1)

(2)

(3)

(1)

(2)

(3)

(4)

pH combination electrode

SC = shielding (screen)

Row 1

Row 2

In environments with difficult EMC conditions, a coaxial cable with a double shielding must be used. A shielded 2-core cable is required for connecting the temperature probe.

4 Electrical connection

Asymmetrical connection of a combination electrode with integrated temperature sensor (SMEK)

✱ Lead the connecting cables in through the cable glands. ✱ Lay the signal cable as shown in the diagram. Use the cable clip (3) to

clamp the signal cable to the shielding.

✱ Connect the cores as assigned below, and see Chapter 4.5 “Terminal

assignments”, page 19.

✱ Push the plug-in terminals for row 1 (1) and row 2 (2) into the sockets in the

instrument.

Sensor connection

(1)

(2)

(3)

(1)

(2)

(3)

(4)

pH combination electrode

SC = shielding (screen)

Row 1

Row 2

Temperature sensor

4 Electrical connection

Symmetrical connection of a combination electrode with separate temperature sensor

✱ Lead the connecting cables in through the cable glands. ✱ Lay the signal cables as shown in the diagram. Use the cable clips (3) to

clamp each signal cable to the shielding.

✱ Connect the cores as assigned below, and see Chapter 4.5 “Terminal

assignments”, page 19.

✱ Push the plug-in terminals for row 1 (1) and row 2 (2) into the sockets in the

instrument.

Sensor connection

(1)

(2)

(3)

pH combination electrode

SC = shielding (screen)

Row 1

Row 2

Separate temperature sensor

Ground pin or conductive pipe/

(1)

(2)

(3)

(4)

reservoir wall at measurement point

Triaxial cable

! remove plug-in link 3-5 !

In environments with difficult EMC conditions, a coaxial cable with a double shielding must be used. A shielded 2-core cable is required for connecting the temperature probe.

4 Electrical connection

4.5 Terminal assignments

Connection Screw

terminals

Row

Supply voltage

Supply voltage (23): 110 — 240 V AC -15/+10%, 48 — 63 Hz

Supply voltage (25): 20—30V AC/DC, 48—63Hz

Supply voltage (30): 12 — 24 V DC +/-15% (permissible only for connection to SELV/PELV circuits)

1 N (L-)

2 L1 (L+)

NC 3 NC 7 NC 14 NC 15

Inputs

Glass/metal electrode 1

NC 2 Reference electrode 3

NC 4 GND

With asymmetrical connection for pH measurement Link terminals 3 and 5 (Accessory: large plug-in link)

FP (liquid potential) With symmetrical connection for pH measurement

NC 7 RTD

in 2-wire circuit (Accessory: small plug-in link)

8 9

RTD in 3-wire circuit

8 9

Binary input 11

4 Electrical connection

Outputs

Analog output 1 0 — 20 mA resp. 20 — 0 mA or

4 — 20 mA resp. 20 — 4 mA or 0 — 10 V resp. 10 — 0 V

(electrically isolated)

+ 13

- 14

Analog output 2 0 — 20 mA resp. 20 — 0 mA or

4 — 20 mA resp. 20 — 4 mA or 0 — 10 V resp. 10 — 0 V

(electrically isolated)

+ 15

- 16

Switching output K1 (floating)

pole 4 break (SPST-NC)5 make (SPST-NO)6

Switching output K2 (floating)

pole 8 break (SPST-NC) 9 make (SPST-NO) 10

Connection Screw

terminals

Row

4 Electrical connection

4.6 ISFET-pH combination electrode according to data sheet

20.1050

Connection Color Screw

terminals

Row

Cap-

adapter

JUMO AQUIS 500 pH

Supply voltage for ISFET sensor

Supply voltage DC ± 5 V, 5 mA

blue

black

green

11 L+

13 L-

pH sensor

Sensor Reference

white / black

screen13 + 5 linked

RTD in 3-wire circuit

white

red

red / black

9 8

Parallel resistance 4.53 kΩ only in conjunction with process connection

615!

red / black

red

8 9

The orange core of the cap adapter is not connected! The TEMPERATURE INPUT / SENSOR TYPE / CUSTOMIZED parameter must

be configured for process connection 615!

5 Mounting

5.1 General

Mounting location

Find a location that ensures easy accessibility for the later calibration. The fastening must be secure and must ensure low vibration for the

instrument. Avoid direct sunlight! Permissible ambient temperature at the installation location: -10 to 55°C with

max. 95% rel. humidity, no condensation.

Installation position

The instrument can be mounted in any position.

5.2 Surface mounting

✱ Screw four fixing brackets (1) onto the enclosure.

The fixing brackets can be turned in increments of 90°.

✱ Fasten the enclosure onto the fixing brackets (with screws, plugs, etc.) on a

surface or plate.

Fixing brackets (1) are included with delivery.

149

134

120

161

140

(1)

5 Mounting

5.3 Pipe installation set / weather protection roof

The pipe installation set for JUMO AQUIS 500 (sales no.: 20/00483664) can be used to fasten the instrument (and optionally the protective roof for JUMO AQUIS 500, sales no.: 20/00398161) onto pipes or railings with a diameter from 30 to 50 mm.

Screws (1) M5 x 30 for pipe diameters from 30 to 40 mm. Screws (2) M5 x 40 for pipe diameters from 40 to 50 mm. The pipe installation set is also suitable for horizontal pipes.

5.4 DIN rail installation set

The DIN rail installation set for JUMO AQUIS 500 (sales no.:20/00) can be used to attach the instrument to a 35 mm x 7.5 mm DIN rail as defined in DIN EN 60715 A.1.

ø30-50

(2)

(1)

5 Mounting

5.5 Mounting in a panel

✱ Prepare the panel cut-out and holes based on the drill template. ✱ Place the control panel (1) in the panel cut-out and fasten it with screws (2)

spacing rollers (3) and nuts (4).

Drilling template See section 12.2 "Panel cut-out", page

101. The panel must be sufficiently thick to achieve the

specified IP65 enclosure protection!

(1)

(2)

(3)

(4)

To ensure electrical safety, the mounting set for panel installation (sales no.: 20/00530470) must be installed, see next page!

5 Mounting

The mounting set (sales no.: 20/00530470) consists of parts (1), (2) and (3).

✱ Make the electrical connection. ✱ Screw on two stud bolts (1). ✱ Fasten the cover (2) with two knurled nuts (3).

Depth behind panel

(1)

(2)

(3)

~55

6 Operation

6.1 Controls

(1) Transmitter (3) Control panel

(2) LC display

(2)

(1)

(3)

6 Operation

6.2 LC display

6.2.1 Measurement mode (normal display)

(1) (2)

(3)

(4) (5)

Relay K1 is active Relay K2 is active

or AL R1 = alarm, relay K1 AL R2 = alarm, relay K2 ALR12 = alarm, relay K2+K2

Binary input 1 is activated

Keypad is inhibited Device status (indications)

- Alarm (e.g overrange)

- Calib. blinking (calibration timer run down)

- Calib. (customer calibration is active)

(6)

(7) (8)

(9) (10) (11)

Output mode

- Hand (manual operation)

- Hold (Hold operation) Measurement Unit Temperature of medium Operating mode ALR1 = alarm, controller 1

ALR2 = alarm, controller 2 ALR12 = alarm, controllers 1

and 2

(1) (2) (3) (5)(4) (6)

(7)

(8)(9)

(10)

(11)

In order to return to the measurement mode from another display mode: Press the key or wait for the timeout.

EXIT

6 Operation

6.3 Principle of operation

Administrator

level

Operator

level

Meas. mode

Calibration

level

EXIT

Calibration

logbook

Device info

PGM

OUTPUT LEVEL

Controller 1

2Controller

MIN/MAX VALUES

> 3 sec

EXIT

or timeout (adjustable)

PGM

< 2 sec

PGM

< 2 sec

EXIT

or timeout ( )adjustable

EXIT

o)r timeout (adjustable

EXIT

o)r timeout (adjustable

EXIT

o)r timeout (adjustable

EXIT

CTRL. SETPOINTS

SETPOINT 1

2SETPOINT

or timeout (adjustable)

EXIT

MANUAL MODE

OVERVIEW

PGM

< 2 s

PGM

< 3 sec

6 Operation

6.3.1 Operation in levels

Measurement mode (normal display); see Chapter 6.4 “Measurement mode”, page 31

CTRL. SETPOINTS

MIN/MAX values see Chapter 6.5.1 “MIN/ MAX values”, page 31

Output level display see Chapter 6.5.2 “Output level display”, page 32

Manual mode overview see Chapter 6.6 “MANUAL mode / simulation mode”, page 33

OPERATOR LEVEL, see Chapter 6.8 “Operator level”, page 38

INPUT (main variable e. g. pH, ORP, NH

) TEMPERATURE INPUT BINARY INPUT CTRL. CHAN. 1 CTRL. CHAN. 2 CTRL.SPEC.FUNCT. SWITCH OUTPUT 1 SWITCH OUTPUT 2 ANALOG OUTPUT 1 ANALOG OUTPUT 2 DISPLAY WASH TIMER

ADMINISTR. LEVEL, see Chapter 6.9 “Administrator level”, page 38

Password

PAR AMETER LEVE L

, see Chapter 6.9.2 “Parameter level”, page 40 INPUT (main variable e. g. pH, ORP, NH3) TEMPERATURE INPUT BINARY INPUT CTRL. CHAN. 1 CTRL. CHAN. 2 CTRL.SPEC.FUNCT. SWITCH OUTPUT 1 SWITCH OUTPUT 2 ANALOG OUTPUT 1 ANALOG OUTPUT 2 DISPLAY

ENABLE LEVEL

, see Chapter 6.9.3 “Enable level”, page 40 CTRL. CHAN. 1 CTRL. CHAN. 2 CTRL.SPEC.FUNCT. CONDUCTIVITY IN TEMPERATURE INPUT BINARY INPUT SWITCH OUTPUT 1 SWITCH OUTPUT 2 ANALOG OUTPUT 1 ANALOG OUTPUT 2 DISPLAY WASH TIMER

6 Operation

Measurement mode ADMINISTRATOR LEVEL

BASIC SETTINGS,

see Chapter 6.9.4 “Basic settings”, page 42

SENSOR MONIT. REF. MONIT. GLASS EL. RE-INITIALIZE DEVICE

CALIB. LEVEL

, see Chapter 6.9.5 “Calibration level”, page 43 1-POINT CALIB. 2-POINT CALIB. 3-POINT CALIB.

CALIB. ENABLE

ENABLE 1-POINT CALIB. ENABLE 2-POINT CALIB. ENABLE 3-POINT CALIB.

DELETE LOGBOOK

REALLY DELETE LOGBOOK?

CALIB. LEVEL

1-POINT CALIB. 2-POINT CALIB. 3-POINT CALIB.

CALIB. LOGBOOK

DEVICE INFO

SENSOR MONIT. REF. MONIT. GLASS EL.

6 Operation

6.4 Measurement mode

6.4.1 Normal display

Presentation The compensated pH value and temperature of the medium are shown in

normal display.

6.5 Input/output information

6.5.1 MIN/MAX values

Activating the display of MIN/MAX values

The instrument is in the measurement mode (normal display). ✱ Press the key for less than 2 seconds.

Minimum and maximum values of the pH, ORP or NH

- (ammonia)

concentration and temperature are displayed.

(1) MEASURE -> Measurement mode (2) 25.0°C -> Temperature of the sample medium (3) 7.34 pH-> pH of the medium (compensated for the reference/

comparison temperature – usually 25°C)

(3)

(1)

(2)

In measurement mode, the display types “Trend display” and “Bar graph” can also be selected.see “MEAS. DISPLAY TYPE”, page 91

PGM

6 Operation

6.5.2 Output level display

The instrument is in the measurement mode (normal display). ✱ Press the key for less than 2 seconds, twice.

The output level for the two controller contacts will be indicated (if they are fitted).

The values for the main measurement and temperature are not allocated to one another (e. g. the max. value of the main variable was 7.33 pH and 25.0°C the max. temperature value).

In order to return to the measurement mode: Press the key or wait for the timeout.

Measurements with overrange will be ignored. Pressing the key briefly again accesses the “Output level display” mode. The MIN/MAX value memory can be reset: Operator level / Display / MIN/MAX

value memory / Yes, see Chapter 11.1 “Operator level parameters”, page 84ff.

If you change the basic setting, or in the event of a power-down, the MIN and MAX values will be deleted.

EXIT

PGM

In order to return to the normal display: Press the key or wait for the timeout.

Pressing the key again will access the mode for “Manual mode overview”.

EXIT

PGM

6 Operation

6.6 MANUAL mode / simulation mode

These functions can be used to set the switching outputs and analog outputs of the instrument manually to a defined state. This facilitates dry startup, troubleshooting and customer service.

Simulation mode directly accesses switching outputs K1/2 or analog outputs 1/2. When simulation mode has been selected, MANUAL mode is not possible!

In MANUAL mode the settings for "higher order controllers" are taken into consideration.

6.6.1 MANUAL mode via "higher order control functions"

Higher order switching functions

The JUMO AQUIS 500 is configured for higher order control functions when the following setting is made:

User level / controller channel 1 or 2 / control type Limit value or pulse length

or pulse frequency or modulating or continuous controller.

For the recommended procedure see Chapter 6.6.3 “Simulation of analog outputs via MANUAL mode”, page 36.

In other configurations switching outputs K1 or K2 are switched.

Select manual mode

✱ Set to Administrator level / Password / Parameter level / Special controller

functions / Manual mode locked, Momentary action or Switching.

Simulation modeMANUAL mode

"Higher order"

controller

Switching output

K1 / K1

Analog output

A1 / A1

In the factory setting of the instrument the MANUAL mode parameter is disabled and can only be activated by the administrator! This parameter must first be enabled for other users, see Chapter 6.9.3 “Enable level”, page 40.

6 Operation

Locked = No manual mode, control via JUMO AQUIS 500. Momentary =the outputs are active as long as the or key is pressed.

action Switching = the outputs are active if the or key is pressed. If the

corresponding key is pressed again, the output becomes inactive again.

Activate manual mode

The instrument is in display mode ✱ Press the and keys for less than 2 seconds.

The word MANUAL appears in the status line of the display.

Control is no longer through the JUMO AQUIS 500. The output level of the controller channels is 0%.

Controller channel 1 is activated by the key. In this case the output level of controller channel 1 is 100%.

Controller channel 2 is activated by the key. In this case the output level of controller channel 2 is 100%.

Deactivation ✱ Press the key.

Control is once again through the outputs of the instrument. The word MANUAL appears in the status line of the display.

Overview of MANUAL/ Simulation mode

You can display which outputs and/or controllers are in MANUAL mode. The instrument is in "normal display" mode.

Press the key several times for less than 2 seconds (the number of times varies depending on the equipment and configuration of the instrument).

Output level of controller channels

The instrument is in "normal display" mode Press the key several times for less than 2 seconds (the number of times

varies depending on the equipment and configuration of the instrument).

EXIT

If the and keys are pressed for longer than 3 seconds, the instrument goes into HOLD mode.

Then the outputs of the instrument respond according to the default settings. To exit HOLD mode, press the and keys for longer than 3 seconds.

EXIT

PGM

6 Operation

The display changes when the key or the key is pressed.

6.6.2 Simulation of switching outputs

Simple witching functions

The switching outputs are configured when the following setting is made: Operator level / Controller channels 1 and/or 2 / Controller type Off

and

Switching output 1 or 2 / function or or or .

Activate simulation

✱ Set Administrator level / Password / Parameter level / Switching output 1 or

2 / Manual mode no simulation, Inactive or Active.

No simulation = No manual mode, control is via the JUMO AQUIS 500. Inactive = Relay K1 or K2 is de-energized. Active = Relay K1 or K2 is energized.

Deactivate manual mode

No simulation = No manual mode, control via JUMO AQUIS 500.

To return to measuring mode: press the key or wait for a "timeout".

EXIT

In the factory setting of the instrument the MANUAL mode parameter is set to "No simulation" and can only be activated by the administrator! This parameter must first be enabled for other users, see Chapter 6.9.3 “Enable level”, page 40.

6 Operation

6.6.3 Simulation of analog outputs via MANUAL mode

Enabling and activation

✱ Select activation of simulation of the actual value output:

Administrator level / Password / Parameter level / Analog output 1 or 2

Simulation / Off or On.

With "On" the output takes on the value of the "Simulation value" parameter. When the JUMO AQUIS is in display mode, the word MANUAL appears in the

status line of the display.

Deactivation ✱

Administrator level / Password / Parameter level / Analog output 1 or 2

Simulation / Off.

The corresponding output of the JUMO AQUIS 500 works again. When the JUMO AQUIS is in display mode, the word MANUAL disappears

from the status line of the display.

6.6.4 MANUAL/Simulation overview

You can display which outputs and/or controllers are in MANUAL mode. The instrument is in "normal display" mode

Press the key several times for less than 2 seconds (the number of times varies depending on the equipment and configuration of the instrument).

PGM

To return to measuring mode: press the key or wait for a "timeout".

EXIT

6 Operation

6.7 HOLD mode

In HOLD status the outputs take on the states programmed in the relevant parameter (controller channel, switching output or analog output).

This function can be used to "freeze" switching outputs and the analog outputs of the instrument. This means the current status of the output will be retained even when the measured value changes. Control is not via the instrument.

HOLD mode can be activated by pressing the key or by the binary input.

Activation by pressing key

✱ Press and hold the and keys longer than 3 seconds.

Then the outputs of the instrument respond according to the default settings. The word HOLD appears in the status line of the display.

Pressing a key to deactivate HOLD mode

✱ Press the and keys for longer than 3 seconds.

Control is through the outputs of the instrument again. The word MANUAL disappears from the status line of the display.

If MANUAL mode is activated while HOLD mode is activated, MANUAL mode takes precedence and MANUAL then appears in the status line of the display! MANUAL mode can be terminated by pressing the key. If HOLD mode is still activated (by the binary input or by keyboard), the instrument then returns to HOLD mode!

EXIT

If the and keys are pressed for less than 3 seconds, the instrument goes into manual mode.

Then the outputs of the instrument respond according to the default settings.

EXIT

If the and keys are pressed for less than 3 seconds, the instrument goes into Manual mode.

Then the outputs of the instrument respond according to the default settings.

EXIT

6 Operation

6.8 Operator level

All the parameters that have been enabled by the administrator (Administrator level, see “Administrator level”, page 38) can be edited in this level. All other parameters (marked by a key ) can only be read.

✱ Press the key for longer than 3 seconds. ✱ Select OPERATOR LEVEL.

For operator level parameters and their explanations, see Chapter 11.1 “Operator level parameters”, page 84 ff.

6.9 Administrator level

- All parameters can be edited (altered) in this level.

- In this level, you can also define which parameters can be edited (altered) by a “normal” user, and/or which calibration actions are permitted. Editable parameters can be edited in the operator level. Non-editable parameters are marked in the operator level by a key symbol

You can access the administrator level as follows:

✱ Press the key for longer than 3 seconds. ✱ Use the or key to select ADMINISTRATOR LEVEL. ✱ Use or to enter the password 300. ✱ Press the key.

PGM

6 Operation

6.9.1 Administrator levels

EXIT

PGM

BASIC

SETTINGS

PARAMETER

LEVEL

ADMIN. LEVEL

timeout

(adjustable)

CALIBRATION

LEVEL

EXIT

timeout

EXIT

PASSWORD

300

timeout

CALIB.

ENABLE

EXIT

timeout

DELETE

LOGBOOK

EXIT

timeout

ENABLE

LEVEL

EXIT

timeout

6 Operation

6.9.2 Parameter level

Here you can make the same settings as at the operator level. However, since the user has administrator rights in this case, parameters can also be altered that would be locked at the operator level.

For the list of adjustable parameters, see Chapter 6.8 “Operator level”, page 38ff.

6.9.3 Enable level

Here it is possible to enable (can be edited) or lock (cannot be edited) all the parameters.

The following section lists all the possible parameters. Some of these parameters may not be displayed on the instrument, depending on the configuration.

INPUT PH / ORP (pH, ORP, NH3- concentration)

Zero point Slope, acidic Slope, alkaline Monitoring of reference electrode Maximum impedance of reference electrode Monitoring of glass electrode Filter time constant Calibration interval

TEMPERATURE INPUT

Sensor type Unit Manual temperature Filter time constant Offset

BINARY INPUT

No function Key inhibit Hold operation Alarm Stop

CONTR. CHAN. 1 or CONTR. CHAN. 2

Controller type Setpoint MIN/MAX contact Proportional band Reset time Derivative time

6 Operation

Pulse period Minimum ON time Output level limit Maximum pulse frequency Hysteresis Pull-in delay Drop-out delay Controller alarm In Hold mode In event of error Max. process value Min. process value

CTRL.SPEC.FUNCT. (Special controller function)

I switch-off Separate controllers Manual mode

SWITCH OUTPUT 1 or SWITCH OUTPUT 2

Function Switching point Pre-alarm Spacing Hysteresis Switch-on delay Switch-off delay Pulse time During calibration Response to errors Response to Hold mode Response to manual mode Break (SPST-NC) / make (SPST-NO) contact

ANALOG OUTPUT 1 or ANALOG OUTPUT 2

Signal type Scaling start Scaling end During scaling In event of error In manual mode Safe value Simulation Simulation value Signal selector

Output Analog process value output Continous

controller Principal

measurement

variable

Principal

measurement

variable

Temperature

1X-X 2-XX

6 Operation

DISPLAY

Language Lighting LCD inverse Meas. display type Lower display Upper display Bar graph calibration start Bar graph calibration end MIN/MAX reset Operator timeout Contrast

6.9.4 Basic settings

The basic settings for the instrument are defined at this level. The parameters are altered by and keys. Use the key to select the next parameter.

PGM

Operating mode

NH (ammonia)

pH standard

pH antimony

ORP

Monitor maximum impedance of reference electrode?

No-

- Yes (0 —100 kOhm)

Re-initialize device

Ye s

Initialize all

dependent parameters

No alteration

of parameters

Unit for ORP

- mV

- %

- customized

Monitor impedance of glass electrode?

No-

- Min. impedance

- Max. impedance

- Min. and max. impedance

Unit for NH

- ppm

- customized

If you leave the "Basic settings" level with EXIT, all changes will be discarded and the previous settings will be restored.

6 Operation

6.9.5 Calibration level

1-POINT CALIB. (1-point calibration)

Only the cell zero point is shifted in this case. Slope errors are not taken into account.

This method can only be recommended with reservation.

see Chapter 8 “Calibration”, page 68ff.

2-POINT CALIB. (2-point calibration)

Two measurements are used here to determine the zero point and slope of the cell.

This method should be given preference.

see Chapter 8 “Calibration”, page 68ff.

3-POINT CALIB. (3-point calibration)

Three measurements are used here to determine the zero point and slope of the cell.

This method should be used when errors are to be expected due to high acidity or alkaline levels.

see Chapter 8 “Calibration”, page 68ff.

6 Operation

6.9.6 Enable calibration

Here you can decide whether to enable the parameter for alteration (calibration) or not.

1-POINT CALIB. 2-POINT CALIB. 3-POINT CALIB.

6.9.7 Delete logbook

REALLY DELETE LOGBOOK? YES / NO

6.10 Device info

The present configuration for all important parameters is shown here, e.g. SENSOR -> PH STANDARD

MONIT. REF. -> OFF MONIT. GLASS EL. -> OFF

6.11 Controller function

Simple switching functions

In the JUMO AQUIS 500, simple switching functions, such as alarm contacts and limit comparators or the signal from the calibration timer, are configured at the parameter level, through the parameters for “Switching output 1 or 2”.

The parameters for the controller channel 1 or 2 respectively must then be set to “Off”.

Higher-level control functions

Higher-level control functions are configured at the parameter level, through the parameters for “Controller channel 1 or 2”.

The parameters for the controller channels must then be set to “Controller 1 or 2”.

6 Operation

Operator level parameters

Switching output 1 / 2 Explanation

none

no switching function and no control function required

Controller 1

the instrument should have the higher-level control

Controller 2

the instrument should have the higher-level

control Controller alarm 1 / 2 Controller alarm

main variable

Temp erature

Sensor fault Calibration timer

“simple” switching functions

Controller channel 1 / 2

Limit value Pulse width Pulse frequency Continuous Modulating

“higher-level” control functions

Off

must be selected if “simple” switching

functions are required

7 Commissioning

7.1 Fast start

✱ Mount the instrument, see Chapter 5 “Mounting”, page 22. ✱ Install the instrument, see Chapter 4 “Electrical connection”, page 12 ff. ✱ Call up the administrator level (ADMIN. LEVEL). ✱ Enter 300 as the password. ✱ Call up the parameter level (PARAMETER LEVEL). ✱ Set the menu item OP. TIMEOUT to 0 min. (no timeout). ✱ Leave the parameter level. ✱ Select basic settings, and work through the entire list of menu items. ✱ Answer the query “Re-initialize device” with YES. ✱ Configure the parameters, see Chapter 11 “Appendix”, page 84,

e. g. input temperature, analog outputs, controller functions, etc.

✱ Calibrate the instrument for the sensor and sample medium.

This is a recommendation for configuring the instrument reliably in a short time.

If you check the setting options from this list before starting the configuration, you can avoid timeouts during configuration.

7 Commissioning

7.2 Setup examples

7.2.1 Measurement of pH (standard sensor)

Range: 0 — 14 pH Output signal: 0 — 20 mA Temperature measurement: manual Controller function: off Sensor monitoring: off

Call up administrator level

Administrator

level

Operator

level

Meas. mode

Calibration

level

EXIT

Calibration

logbook

Device info

PGM

OUTPUT LEVEL

Controller 1

2Controller

MIN/MAX VALUES

> 3 s

EXIT

or timeout (adjustable)

PGM

< 2 sec

PGM

< 2 sec

EXIT

o)r timeout (adjustable

EXIT

o)r timeout (adjustable

EXIT

o)r timeout (adjustable

EXIT

o)r timeout (adjustable

EXIT

CTRL. SETPOINTS

SETPOINT 1

2SETPOINT

or timeout (adjustable)

EXIT

MANUAL MODE

OVERVIEW

PGM

< 2 sec

PGM

< 3 sec

✔

continue on

PGM

7 Commissioning

Call up basic settings

EXIT

PGM

BASIC

SETTINGS

PARAMETER

LEVEL

ADMIN. LEVEL

timeout

(adjustable)

CALIBRATION

LEVEL

EXIT

timeout

EXIT

PASSWORD

300

timeout

CALIB.

ENABLE

EXIT

timeout

DELETE

LOGBOOK

EXIT

timeout

ENABLE

LEVEL

EXIT

timeout

✔

continue on

PGM

✔

7 Commissioning

Operating mode

NH (ammonia)

pH standard

pH antimony

ORP

Monitor maximum impedance of reference electrode?

No-

- Yes (0 —100 kOhm)

Re-initialize device

Ye s

Initialize all

dependent parameters

No alteration

of parameters

Unit for ORP

- mV

- %

- customized

Monitor impedance of glass electrode?

No-

- Min. impedance

- Max. impedance

- Min. and max. impedance

Unit for NH

- ppm

- customized

pH ISFET

Basic settings for the main input: procedure

7 Commissioning

Call up the parameter level

EXIT

PGM

BASIC

SETTINGS

PARAMETER

LEVEL

ADMIN. LEVEL

timeout

(adjustable)

CALIBRATION

LEVEL

EXIT

timeout

EXIT

PASSWORD

300

timeout

CALIB.

ENABLE

EXIT

timeout

DELETE

LOGBOOK

EXIT

timeout

ENABLE

LEVEL

EXIT

timeout

✔

continue on

PGM

✔

7 Commissioning

Concluding instrument settings

Input for temperature

Sensor type: no sensor (manual) Unit: °C Manual temperature: 25.0°C (present temperature of medium) Filter time constant: 00:00:02

Analog output 1 Signal selector: Main value

Signal type: 0 — 20 mA Scaling start: 0.00 pH Scaling end: 14.00 pH

7 Commissioning

7.2.2 Measurement of pH (standard sensor)

Range: 2 — 12 pH Output signal: 4 — 20 mA Temperature measurement by Pt100 Controller function: pulse width controller Setpoint 1: pH 6.5 Setpoint 2: pH 8.5 Sensor monitoring: off

Call up administrator level

Administrator

level

Operator

level

Meas. mode

Calibration

level

EXIT

Calibration

logbook

Device info

PGM

OUTPUT LEVEL

Controller 1

2Controller

MIN/MAX VALUES

> 3 s

EXIT

or timeout (adjustable)

PGM

< 2 sec

PGM

< 2 sec

EXIT

o)r timeout (adjustable

EXIT

o)r timeout (adjustable

EXIT

o)r timeout (adjustable

EXIT

o)r timeout (adjustable

EXIT

CTRL. SETPOINTS

SETPOINT 1

2SETPOINT

or timeout (adjustable)

EXIT

MANUAL MODE

OVERVIEW

PGM

< 2 sec

PGM

< 3 sec

✔

continue on

PGM

7 Commissioning

Call up basic settings

EXIT

PGM

BASIC

SETTINGS

PARAMETER

LEVEL

ADMIN. LEVEL

timeout

(adjustable)

CALIBRATION

LEVEL

EXIT

timeout

EXIT

PASSWORD

300

timeout

CALIB.

ENABLE

EXIT

timeout

DELETE

LOGBOOK

EXIT

timeout

ENABLE

LEVEL

EXIT

timeout

✔

continue on

PGM

✔

7 Commissioning

Operating mode

NH (ammonia)

pH standard

pH antimony

ORP

Monitor maximum impedance of reference electrode?

No-

- Yes (0 —100 kOhm)

Re-initialize device

Ye s

Initialize all

dependent parameters

No alteration

of parameters

Unit for ORP

- mV

- %

- customized

Monitor impedance of glass electrode?

No-

- Min. impedance

- Max. impedance

- Min. and max. impedance

Unit for NH

- ppm

- customized

pH ISFET

Basic settings for the main input: procedure

7 Commissioning

Call up parameter level

EXIT

PGM

BASIC

SETTINGS

PARAMETER

LEVEL

ADMIN. LEVEL

timeout

(adjustable)

CALIBRATION

LEVEL

EXIT

timeout

EXIT

PASSWORD

300

timeout

CALIB.

ENABLE

EXIT

timeout

DELETE

LOGBOOK

EXIT

timeout

ENABLE

LEVEL

EXIT

timeout

✔

continue on

PGM

✔

7 Commissioning

Concluding instrument settings

Input for temperature

Sensor type: Pt100/Pt1000 Unit: °C Filter time constant: 00:00:02 Offset: 0.0°C

Controller channel 1

Controller type: pulse width output Setpoint: 6.5 pH MIN / MAX contact: MIN contact Proportional band: as required Reset time: as required Derivative time: as required Pulse period: as required Switch-on time: as required Output level limit: as required Controller alarm: as required Alarm tolerance: as required Alarm delay: as required In Hold mode: as required “Hold” output level: as required In event of error: as required MAX setpoint: as required MIN setpoint: as required Alarm delay: as required

Controller channel 2

Controller type: pulse width output Setpoint: 8.5 pH MIN /MAX contact: MIN contact Proportional band: as required Reset time: as required Derivative time: as required Pulse period: as required Switch-on time: as required Output level limit: as required Controller alarm: as required Alarm tolerance: as required Alarm delay: as required In Hold mode: as required “Hold” output level: as required In event of error: as required

7 Commissioning

MAX setpoint: as required MIN setpoint: as required Alarm delay: as required

Switching output 1

Function: CONTROLLER 1

Switching output 2

Function: CONTROLLER 2

Analog output 1 Signal selector: Main value

Signal type: 4 — 20 mA Scaling start: 2 pH Scaling end: 12 pH During calibration: as required In event of error: as required In Hold mode: as required Safe value: as required Simulation: as required Simulation value: as required

7 Commissioning

7.2.3 ORP measurement

Range: 0 — 1000 mV Output signal: 0 — 10 V Controller function: limit controller Limit: 600 mV

Call up administrator level

Administrator

level

Operator

level

Meas. mode

Calibration

level

EXIT

Calibration

logbook

Device info

PGM

OUTPUT LEVEL

Controller 1

2Controller

MIN/MAX VALUES

> 3 s

EXIT

or timeout (adjustable)

PGM

< 2 sec

PGM

< 2 sec

EXIT

o)r timeout (adjustable

EXIT

o)r timeout (adjustable

EXIT

o)r timeout (adjustable

EXIT

o)r timeout (adjustable

EXIT

CTRL. SETPOINTS

SETPOINT 1

2SETPOINT

or timeout (adjustable)

EXIT

MANUAL MODE

OVERVIEW

PGM

< 2 sec

PGM

< 3 sec

✔

continue on

PGM

7 Commissioning

Call up basic settings

EXIT

PGM

BASIC

SETTINGS

PARAMETER

LEVEL

ADMIN. LEVEL

timeout

(adjustable)

CALIBRATION

LEVEL

EXIT

timeout

EXIT

PASSWORD

300

timeout

CALIB.

ENABLE

EXIT

timeout

DELETE

LOGBOOK

EXIT

timeout

ENABLE

LEVEL

EXIT

timeout

✔

continue on

PGM

✔

7 Commissioning

Operating mode

NH (ammonia)

pH standard

pH antimony

ORP

Monitor maximum impedance of reference electrode?

No-

- Yes (0 —100 kOhm)

Re-initialize device

Ye s

Initialize all

dependent parameters

No alteration

of parameters

Unit for ORP

- mV

- %

- customized

Monitor impedance of glass electrode?

No-

- Min. impedance

- Max. impedance

- Min. and max. impedance

Unit for NH

- ppm

- customized

pH ISFET

Basic settings for the main input: procedure

7 Commissioning

Call up parameter level

EXIT

PGM

BASIC

SETTINGS

PARAMETER

LEVEL

ADMIN. LEVEL

timeout

(adjustable)

CALIBRATION

LEVEL

EXIT

timeout

EXIT

PASSWORD

300

timeout

CALIB.

ENABLE

EXIT

timeout

DELETE

LOGBOOK

EXIT

timeout

ENABLE

LEVEL

EXIT

timeout

✔

continue on

PGM

✔

7 Commissioning

Concluding instrument settings

Controller channel 1

Control type: limit Setpoint: 600 mV MIN / MAX contact: as required Hysteresis: as required Pull-in delay: as required Drop-out delay: as required Controller alarm: as required In Hold mode: as required In event of error: as required MAX setpoint: as required MIN. setpoint: as required

Controller channel 2

Control type: off

Switching output 1

Function: controller 1

Switching output 2

Function: no function

Analog output 1 Signal selector: Main value

Signal type: 0 — 10 V Scaling start: 0 mV Scaling end: 1000 mV

7 Commissioning

7.2.4 Measurement of NH3- (ammonia) concentration

Range: 0 — 100 ppm Output signal: 0 — 20 mA Controller function: limit controller Limit: 10 ppm

Call up administrator level

Administrator

level

Operator

level

Meas. mode

Calibration

level

EXIT

Calibration

logbook

Device info

PGM

OUTPUT LEVEL

Controller 1

2Controller

MIN/MAX VALUES

> 3 s

EXIT

or timeout (adjustable)

PGM

< 2 sec

PGM

< 2 sec

EXIT

o)r timeout (adjustable

EXIT

o)r timeout (adjustable

EXIT

o)r timeout (adjustable

EXIT

o)r timeout (adjustable

EXIT

CTRL. SETPOINTS

SETPOINT 1

2SETPOINT

or timeout (adjustable)

EXIT

MANUAL MODE

OVERVIEW

PGM

< 2 sec

PGM

< 3 sec

✔

continue on

PGM

7 Commissioning

Call up basic settings

EXIT

PGM

BASIC

SETTINGS

PARAMETER

LEVEL

ADMIN. LEVEL

timeout

(adjustable)

CALIBRATION

LEVEL

EXIT

timeout

EXIT

PASSWORD

300

timeout

CALIB.

ENABLE

EXIT

timeout

DELETE

LOGBOOK

EXIT

timeout

ENABLE

LEVEL

EXIT

timeout

✔

continue on

PGM

✔

7 Commissioning

Operating mode

NH (ammonia)

pH standard

pH antimony

ORP

Monitor maximum impedance of reference electrode?

No-

- Yes (0 —100 kOhm)

Re-initialize device

Ye s

Initialize all

dependent parameters

No alteration

of parameters

Unit for ORP

- mV

- %

- customized

Monitor impedance of glass electrode?

No-

- Min. impedance

- Max. impedance

- Min. and max. impedance

Unit for NH

- ppm

- customized

pH ISFET

Basic settings for the main input: procedure

7 Commissioning

Call up parameter level

EXIT

PGM

BASIC

SETTINGS

PARAMETER

LEVEL

ADMIN. LEVEL

timeout

(adjustable)

CALIBRATION

LEVEL

EXIT

timeout

EXIT

PASSWORD

300

timeout

CALIB.

ENABLE

EXIT

timeout

DELETE

LOGBOOK

EXIT

timeout

ENABLE

LEVEL

EXIT

timeout

✔

continue on

PGM

✔

7 Commissioning

Concluding instrument settings

Controller channel 1

Control type: limit Setpoint: 10 ppm MIN / MAX contact: as required Hysteresis: as required Pull-in delay: as required Drop-out delay: as required Controller alarm: as required In Hold mode: as required In event of error: as required MAX setpoint: as required MIN setpoint: as required

Controller channel 2

Control type: off

Switching output 1

Function: controller 1

Switching output 2

Function: no function

Analog output 1 Signal selector: Main value

Signal type: 0 — 20 mA Scaling start: 0 ppm Scaling end: 100 ppm

8 Calibration

8.1 pH electrode

General Various calibration options are available to adapt the instrument to the pH

electrode.

-1-point calibration This is only recommended for special applications, e.g. high-purity water.

-2-point calibration This is recommended as the standard method.

-3-point calibration This is only recommended for special applications with increased accuracy requirements, both within the acidic and alkaline ranges.

When to calibrate

The pH combination electrode (or glass and reference electrode) should be cleaned at regular intervals (depending on the sample medium) and the transmitter calibrated.

Calibration start

Calibrating can be started as follows:

-by pressing the key, if this has been enabled in ADMIN. LEVEL / PASSWORD / CALIB. ENABLE.

- via ADMIN. LEVEL / PASSWORD / CALIB. LEVEL.

- via CALIB. LEVEL if this has been enabled in ADMIN. LEVEL / PASSWORD / CALIB. ENABLE.

8.1.1 1-point calibration

Requirements - The supply voltage for the instrument must be present.

see Chapter 4 “Electrical connection”, page 12ff.

- A combination electrode must be connected to the transmitter.

- "PH STANDARD" must be configured as the sensor in the basic settings.

- Calibration must be enabled, see Chapter 6.9.1 “Administrator levels”, page 39.

- The transmitter is in the measurement mode.

The display blinks during calibration. The analog outputs will respond as configured in OPERATOR LEVEL / ANALOG OUTPUT x / DURING CALIBRATION. The relays will respond in accordance with the configuration of the switching outputs.

CAL

8 Calibration

✱ Immerse the combination electrode in a buffer solution with a known pH.

✱ Start the calibration (by pressing the key, or via the Administrator level).

✱ Using the key, start 1-point calibration.

✱ With manual temperature input, set the temperature of the calibration

solution using the or key and confirm the selection with .

✱ Wait until the displayed value is stable; then continue with .

✱ Set the displayed value to the value of the buffer solution using the or

key; then continue with .

The temperature of the buffer solution must remain constant during calibration!

CAL

PGM

8 Calibration

✱ Accept the zero point with the key or

use the key to reject the value.

The instrument returns to the measurement mode.

8.1.2 2-point calibration

Requirements - The supply voltage for the instrument must be present.

see Chapter 4 “Electrical connection”, page 12ff.

- A combination electrode must be connected to the transmitter.

- "PH STANDARD" must be configured as the sensor in the basic settings.

- Calibration must be enabled, see Chapter 6.9.1 “Administrator levels”, page 39.

- The transmitter is in the measurement mode.

✱ Immerse the combination electrode in the first buffer solution with a known

pH (e.g. 4.00).

PGM

EXIT

The buffer solutions (reference solutions) used for calibration must differ by at least 2 pH. During calibration, the temperature of the two buffer solutions must be the same and must remain constant.

8 Calibration

✱ Start the calibration (by pressing the key, or via the Administrator level).

✱ Using the key, start 2-point calibration.

✱ With manual temperature input, set the temperature of the buffer solution

using the or key and confirm the selection with .

✱ Wait until the displayed value is stable; then continue with .

✱ Set the displayed value to the value of the first buffer solution (e.g. 4.00)

using the or key; then continue with .

✱ Rinse, then dry the pH combination electrode. ✱ Immerse the pH combination electrode in the second buffer solution (e.g.

8.00).

CAL

PGM

8 Calibration

✱ Wait until the displayed value is stable; then continue with .

✱ Set the displayed value to the value of the second buffer solution (e.g. 8.00)

using the or key; then continue with .

The zero and slope determined by the instrument are displayed. ✱ Accept the calibrated values with the key or

use the key to reject the value.

The instrument returns to the measurement mode.

8.1.3 3-point calibration

Requirements - The supply voltage for the instrument must be present.

see Chapter 4 “Electrical connection”, page 12ff.

- A combination electrode must be connected to the transmitter.

- "PH STANDARD" must be configured as the sensor in the basic settings.

PGM

EXIT

The buffer solutions (reference solutions) used for calibration must have the following values:

Buffer solution 1: within the neutral range (7 pH as accurately as possible) Buffer solution 2: larger than 9 pH Buffer solution 3: smaller than 5 pH

The temperature of the buffer solutions must be the same and must remain constant during calibration.

The buffer solutions can be used in any order during calibration.

8 Calibration

- Calibration must be enabled, see Chapter 6.9.1 “Administrator levels”, page 39.

- The transmitter is in the measurement mode.

✱ Immerse the combination electrode in the first buffer solution with a known

pH value.

✱ Start the calibration (by pressing the key, or via the Administrator level).

✱ Using the key, start 3-point calibration.

With manual temperature input, set the temperature of the calibration solution using the or key and confirm the selection with .

The temperature of the three buffer solutions must be the same and must remain constant during calibration.

CAL

PGM

8 Calibration

✱ Wait until the displayed value is stable; then continue with .

✱ Set the displayed value to the value of the first buffer solution using the

or key; then continue with .

✱ Rinse, then dry the combination electrode. ✱ Immerse the combination electrode in the second buffer solution with a

known pH value.

✱ Wait until the displayed value is stable; then continue with .

✱ Set the displayed value to the value of the second buffer solution using the

or key; then continue with .

✱ Rinse, then dry the combination electrode. ✱ Immerse the combination electrode in the third buffer solution with a known

pH.

PGM

8 Calibration

✱ Wait until the displayed value is stable; then continue with .

✱ Set the displayed value to the value of the second buffer solution using the

or key; then continue with .

The zero point of the combination electrode, as well as its slope in the acidic/ alkaline range of the characteristic are shown.

✱ Accept the calibrated values with the key or

use the key to reject the value.

The instrument returns to the measurement mode.

PGM

EXIT

8 Calibration

8.2 pH antimony electrode

Antimony electrodes are calibrated in the same way as normal pH ones.

- General notes on calibration, see “General”, page 68.

- 1-point calibration, see Chapter 8.1.1 “1-point calibration”, page 68.

- 2-point calibration, see Chapter 8.1.2 “2-point calibration”, page 70.

- 3-point calibration, see Chapter 8.1.3 “3-point calibration”, page 72.

8.3 ORP electrode

General Two calibration options are available to adapt the instrument to the ORP

electrode.

-1-point calibration With configuration “mV” for the UNIT.

-2-point calibration With configuration “%” or “CUSTOMIZED” for the UNIT.

When to calibrate

The ORP combination electrode (or metal and reference electrode) should be cleaned at regular intervals (depending on the sample medium) and the transmitter calibrated.

Calibration start

Calibrating can be started as follows:

-by pressing the key, if this has been enabled in ADMIN. LEVEL / PASSWORD / CALIB. ENABLE.

- via ADMIN. LEVEL / PASSWORD / CALIB. LEVEL

- via CALIB. LEVEL if this has been enabled in ADMIN. LEVEL / PASSWORD / CALIB. ENABLE.

8.3.1 1-point calibration

Requirements - The supply voltage for the instrument must be present.

see Chapter 4 “Electrical connection”, page 12ff.

- A combination electrode must be connected to the transmitter.

- “REDOX” (ORP) must be configured for the sensor and “mV” for the UNIT.

The display blinks during calibration. The analog outputs will respond as configured in OPERATOR

LEVEL / ANALOG OUTPUT x / DURING CALIBRATION. The relays will respond in accordance with the configuration of the

analog outputs and switching outputs.

CAL

8 Calibration

- Calibration must be enabled, see Chapter 6.9.1 “Administrator levels”, page 39.

- The transmitter is in the measurement mode.

✱ Immerse the combination electrode in a buffer solution with a known ORP.

✱ Start the calibration (by pressing the key, or via the Administrator level).

✱ Using the key, start 1-point calibration.

Wait until the displayed value is stable; then continue with .

✱ Set the displayed value to the value of the buffer solution using the or

key; then continue with .

The ORP of the sample solution is not dependent on temperature!

CAL

PGM

8 Calibration

The zero point that was determined by the instrument is shown. ✱ Accept the value with the key or

use the key to reject the value.

The instrument returns to the measurement mode.

8.3.2 2-point calibration

Requirements - The supply voltage for the instrument must be present.

see Chapter 4 “Electrical connection”, page 12ff.

- A combination electrode must be connected to the transmitter.

- “REDOX” (ORP) must be configured for the sensor and “CUSTOMIZED” or “%” for the UNIT in the basic settings.

- Calibration must be enabled, see Chapter 6.9.1 “Administrator levels”, page 39.

- The transmitter is in the measurement mode.

✱ Immerse the combination electrode in a buffer solution with a known ORP.

✱ Start the calibration (by pressing the key, or via the Administrator level).

PGM

EXIT

The ORP of the sample solution is not dependent on temperature!

CAL

8 Calibration

✱ Using the key, start 1-point calibration.

✱ Wait until the displayed value is stable; then continue with .

✱ Set the displayed value to the value of the first buffer solution using the

or key; then continue with .

✱ Rinse, then dry the ORP combination electrode. ✱ Immerse the ORP combination electrode in the second buffer solution. ✱ Wait until the displayed value is stable; then continue with .

✱ Set the displayed value to the value of the second buffer solution using the

or key; then continue with .

PGM

8 Calibration

The zero and slope determined by the instrument are displayed. ✱ Accept the calibrated values with the key or

use the key to reject the value.

The instrument returns to the measurement mode.

8.4 Ammonia (NH3)- cell

8.4.1 General information

From exemplar to exemplar the electrical features of all sensors are a little different; in additon to that they change during operation (e.g. due to precipitation or abrasion) which causes a change of the sensor's output signal. For measurement of ammonia with "normal" accurcay requirements, the transmitter uses a typical characteristic - dependent on the

concentration. With the zero shift the indivicual features of the sensor are considered; this reduces the calibration procedure considerably. The software of the transmitter is especially adjusted to the cooling media control.

Time of Calibration ?

- in regular time intervals - dependent on measuring medium and demands

- if the upper display shows negative values

- if the upper disply shows "Underrange/Overrange"

8.4.2 1-point calibration

Requirements - The supply voltage for the instrument must be present.

see Chapter 4 “Electrical connection”, page 12ff.

- A combination electrode must be connected to the transmitter.

- Calibration must be enabled, see Chapter 6.9.1 “Administrator levels”, page 39.

- “AMMONIA NH3” must be configured for the sensor in the basic settings.

PGM

EXIT

8 Calibration

- The transmitter is in the measurement mode.

✱ Immerse the combination electrode in a solution without ammonia. ✱ Start the calibration (by pressing the key, or via the Administrator level).

✱

✱ Using the key, start 1-point calibration.

✱ Wait until the displayed value is stable; then continue with .

✱ Use the key to confirm the calibration result, or

use the key to reject the value.

The instrument returns to the measurement mode.

CAL

PGM

EXIT

9 Setup program

9.1 Function

Configurable parameters

The setup program (available as an option) can be used for easy adaptation of the instrument to the requirements.

- Setting the measurement range and the range limits.

- Setting the response of the outputs to an out-of-range signal.

- Setting the functions of the switching outputs K1 and K2.

- Setting the function of the binary input E1.

- Setting up special functions (e.g. tables for specific linearizations).

-etc.

Connection

Data transmission from or to the transmitter can only take place when it is connected to the electrical supply, see Chapter 4 “Electrical connection”, page 12ff.

The setup interface is not electrically isolated. When connecting the PC interface cable with a TTL/RS232

converter and adapter (serial connection cable) (70/00350260) , it is therefore absolutely essential to ensure that the supply for either the transmitter or the PC is not electrically earthed (for instance: use a battery-powered notebook).

The PC interface cable with USB/TTL converter (USB connection cable) (70/00456352) is, however, electrically isolated.

PC interface with USB/TTL converter

(USB connection cable)

(70/00456352)

10 Eliminating faults and malfunctions

10.1 Possible faults

Problem Possible cause Measures

No measurement display or current output

Supply voltage missing

Check supply voltage, also check terminals

Measurement display 000 or analog output 0/4 mA or 0 V

Sensor not immersed in medium; reservoir level too low

Top up t he re ser voir

Flow-through fitting is blocked

Clean flow-through fitting

Sensor is faulty Replace the sensor

Wrong or unstable measurement display

Sensor not immersed deeply enough

Top up t he re ser voir

Inadequate mixing Ensure good mixing;

for sensor: all-round free space of approx. 5 mm to ensure all-round flow

Air bubbles Check mounting site

Measurement display 8888, Temperature display “ok”, blinking

Overrange / underrange or faulty sensor

Check the basic settings. Check the electrical

connection for the sensor.

Replace the instrument.

Measurement display 8888, temperature display 8888, blinking

Infringement of temperature range (over/ underrange), or shortcircuit or cable break for the temperature sensor

The temperature for the measured medium is outside the permissible range for temperature compensation.

Replace the instrument. Replace the sensor.

Temperature display and measurement display are normal, but the unit indicates ????

The basic settings were configured on the instrument in the “Customized” mode.

“Unit” must be configured through the setup program, or the “Customized” mode must be abandoned.

Fluctuating measurement display

Symmetrical connection was chosen.

- Interruption of connection to liquid potential.

- Interference potential too high.

- Check the electrical connection, see Chapter 4.5 “Terminal assignments”, page 19

- Eliminate interference potential.

11 Appendix

11.1 Operator level parameters

If a number of instrument parameters have to be modified in the instrument, then it is advisable to note them in the table below, and then modify these parameters in the sequence given.

The following list shows the maximum number of parameters that can be altered.

Depending on the configuration, some of the parameters will not be visible, i.e. not alterable (editable) for your instrument.

Parameter Selection / value range

Factory setting

New

setting

Controller channel 1

Controller type LIMIT

PULSE WIDTH PULSE FREQ. CONTINUOUS MODULATING

OFF

Setpoint depending on unit, e. g. -1.00 to 15.00 pH MIN / MAX contact (increasing / decreasing characteristic)

MIN CONTACT

MAX CONTACT

Proportional band 0...9999 Reset time 0...9999 Derivative time 0...999 Pulse period 2,5...20...999,5 Minimum ON time 0,5...999,5 Output level limit 0...100% Maximum pulse frequency 0...60 1/min. Hysteresis (differential) depending on unit, e. g. 0.00 to 16.00 pH Pull-in delay 0.00 — 999.5 sec Drop-out delay 0.00 — 999.5 sec Controller alarm OFF

Alarm tolerance 0,00...1,00...16,00 Alarm delay 0...9999 In Hold mode FROZEN

0% 100%

In event of error FROZEN

100% MAX setpoint depending on unit, e. g. -1.00 to 15.00 pH MIN setpoint depending on unit, e. g. -1.00 to 15.00 pH

11 Appendix

Controller channel 2

Controller type LIMIT

PULSE WIDTH

PULSE FREQ.

CONTINUOUS

MODULATING

OFF

Setpoint depending on unit, e. g. -1.00 to 15.00 pH MIN / MAX contact

(increasing / decreasing characteristic)

MIN CONTACT

MAX CONTACT

ON Alarm tolerance 0,00...1,00...16,00 Alarm delay 0...9999 In Hold mode FROZEN

100% In event of error FROZEN

100% MAX setpoint depending on unit, e. g. -1.00 to 15.00 pH MIN setpoint depending on unit, e. g. -1.00 to 15.00 pH

Controller special function

I switch-off INACTIVE

ACTIVE Separate controllers OFF

ON Manual mode LOCKED

PULSED

SWITCHED

Input for pH / ORP

for pH standard Zero point 5.0 to 9.0 to 9.00 pH Slope, acidic 75.0 to 100.0 to 110.0% Slope, alkaline 75.0 to 100.0 to 110.0%

Parameter Selection / value range

Factory setting

New

setting

11 Appendix

for pH antimony Zero point -2.00 to 0.0 to 2.0 pH Slope, acidic 10.0 to 100.0 to 110.0% Slope, alkaline 10.0 to 100.0 to 110.0% for ORP Zero point -199.9 to 0.0 to 199.9 mV for NH3 (ammonia) Zero point -450,0 to 138,0 to 450,0 mV for all measured variables Monit. ref. OFF

ON Monit. glass el. OFF

MIN IMPEDANCE

MAX IMPEDANCE

MIN.+MAX. IMP Filter time constant 0 —2— 25 sec Calibration interval 0— 999 days (0 = switched off)

Temperature input

Sensor type NO SENSOR

Pt100/Pt1000

CUSTOMIZED Unit °C

°F Filter time constant 0—2— 25 sec Manual temperature -50 to 25 to 250°C

Binary input

Function NO FUNCTION

KEY LOCK

HOLD MODE

Parameter Selection / value range

Factory setting

New

setting

11 Appendix

Switching output 1

Function NO FUNCTION

CONTROLLER 1

CONTROLLER 2

CTRLR ALARM 1

CTRLR ALARM 2

CTRLR ALARM

LC1 MAIN VAR.

LC2 MAIN VAR.

LC7 MAIN VAR.

LC8 MAIN VAR.

LC1 TEMP.

LC2 TEMP.

LC7 TEMP.

LC8 TEMP.

SENSOR ERROR

CALIB. TIMER Manual mode NO SIMULATION

INACTIVE

ACTIVE

Switching output 2

Function NO FUNCTION

CONTROLLER 1

CONTROLLER 2

CTRLR ALARM 1

CTRLR ALARM 2

CTRLR ALARM

LC1 MAIN VAR.

LC2 MAIN VAR.

LC7 MAIN VAR.

LC8 MAIN VAR.

LC1 TEMP.

LC2 TEMP.

LC7 TEMP.

LC8 TEMP.

SENSOR ERROR

CALIB. TIMER

Parameter Selection / value range

Factory setting

New

setting

11 Appendix

Manual mode NO SIMULATION

INACTIVE

ACTIVE

Analog output 1

Signal selector MAIN VARIABLE

CONTROLLER 1

CONTROLLER 2 Signal type 0 — 20 mA

20 — 0 mA

4 — 20 mA

20 — 4 mA

0 — 10 V

10 — 0 V Scaling start of principle

measurement variable

depending on unit, e. g. -1 to 0.00 to 13.40 pH = 4 mA

Scaling end of principle measurement variable

depending on unit, e. g. 0.60 to 15.00 pH = 20 mA

During calibration MOVING

FROZEN

SAFE VALUE In event of error LOW

HIGH

FROZEN

SAFE VALUE In Hold mode LOW

HIGH

FROZEN

SAFE VALUE Safe value 0 — 22 mA Simulation OFF

ON Simulation value 0 — 22 mA

Analog output 2

Signal selector TEMPERATURE

CONTROLLER 1

CONTROLLER 2 Signal type 0 — 20 mA

20 — 0 mA

4 — 20 mA

20 — 4 mA

0 — 10 V

10 — 0 V Scaling start of temperature

-50 to +220°C = 4 mA

Scaling end of temperature -20 to +250°C = 20 mA During calibration MOVING

FROZEN

SAFE VALUE

Parameter Selection / value range

Factory setting

New

setting

11 Appendix

In event of error LOW

HIGH

FROZEN

SAFE VALUE In Hold mode LOW

HIGH

FROZEN

SAFE VALUE Safe value 0 — 22 mA Simulation OFF

ON Simulation value 0 — 22 mA

Display

Language GERMAN

ENGLISH

FRENCH Lighting DURING OPERATION

OFF LCD inverse OFF

ON Meas. display type NORMAL

TREND

BAR GRAPH Lower display TEMPERATURE

OUTP. LEVEL 1

OUTP. LEVEL 2

SETPOINT 1

SETPOINT 2

NONE

COMPENSATED

UNCOMPENSATED Upper display COMPENSATED

UNCOMPENSATED

TEMPERATURE

OUTP. LEVEL 1

OUTP. LEVEL 2

SETPOINT 1

SETPOINT 2

NONE MIN/MAX reset NO

YES Operating timeout 0—10 min Contrast 0—10—20

Parameter Selection / value range

Factory setting

New

setting

11 Appendix

11.2 Parameter explanations

FUNCTION

NO FUNCTION

Alarm window AF1 MAIN VAR.

Alarm window AF2 MAIN VAR.

Limit function AF7 MAIN VAR.

Limit function AF8 MAIN VAR.

Alarm window AF1 TEMP.

Alarm window AF2 TEMP.

Limit function AF7 TEMP.

Limit function AF8 TEMP.

SENSOR ERROR CALIB. TIMER

Alarm window AF1 Alarm window AF2

Limit function AF7 Limit function AF8

HySt

11 Appendix

MEAS. DISPLAY TYPE

NORMAL

TREND BAR GRAPH

NORMAL In the normal display, the pH is shown (compensated for the reference

temperature) or the concentration and temperature of the medium being measured.

Pulse contact Triggering condition longer than pulse duration

Pulse contact Triggering condition shorter than pulse duration

0Off t Time 1On t

Pulse duration AL Spacing w Setpoint / Limit HySt Hysteresis x Actual value / Measurement

value

Pulse contact

Trigger condition

Pulse contact

Trigger condition

(1) (2) (3)

Operating mode Lower display Upper display

(3)

(1)

(2)

11 Appendix

TREND The operator can quickly recognize in which direction the measurement is

changing.

BAR GRAPH - The measurement is shown as a moving bar.

- There is no temperature display.

- On instruments with configurable control contacts, the setpoints are marked by arrows above the bar graphs.

Scaling of the bar

✱ Activate the measurement display type BAR GRAPH. ✱ Select BARGR. SCALE START. ✱ Confirm selection with . ✱ Use the or key to enter the lower limit for the range to be displayed. ✱ Confirm selection with . ✱ Select BARGR. SCALE END ✱ Use the or key to enter the upper limit for the range to be displayed.

rising

stable

falling

strong medium slightly slightly medium strong

The measurement trend is derived from the last 10 measurements. With a 500 msec sampling cycle, this means that the last 5 seconds are taken into account.

PGM

11 Appendix

✱ Confirm selection with .

LOWER DISPLAY

This parameter is only available for the measurement display types NORMAL and TREND.

TEMPERATURE

OUTP. LEVEL 1 OUTP. LEVEL 2 SETPOINT 1 SETPOINT 2 NONE COMPENSATED UNCOMPENSATED

UPPER DISPLAY

This parameter is only available for the measurement display types NORMAL and TREND.

COMPENSATED

UNCOMPENSATED TEMPERATURE OUTP. LEVEL 1 OUTP. LEVEL 2 SETPOINT 1 SETPOINT 2 NONE

PGM

In order to return to the measurement mode: Press the key several times, or wait for the timeout.

EXIT

(1) (2) (3)

Operating mode Lower display Upper display

(3)

(1)

(2)

11 Appendix

11.3 Glossary

Calibration timer

The calibration timer indicates (if required) when the next routine calibration is due. The calibration timer is activated by entering a number of days, after which recalibration has to be carried out (plant or operator requirement).

MIN/MAX value memory

This memory acquires the minimum or maximum input variables that have occurred. This information serves, for example, to decide whether the sensor that is connected is suited to the values that are actually present. .

The MIN/MAX value memory can be reset: Operator level / Display / MIN/MAX value memory / Yes, see “Operator level parameters”, page 84ff.

Asymmetrical connection of pH electrodes

pH electrodes are usually connected to the transmitter asymmetrically. The connection corresponds precisely to the arrangement of a pH electrode with regard to the impedance.

In the case of the asymmetrical connection, the glass electrode has a highresistance connection to the transmitter electronics and the reference electrode a low-resistance one. Most transmitters are designed for this type of connection.

For both asymmetrical and symmetrical connections, the input impedance of the transmitter must be about 1000 times higher than the impedance of the glass electrode that is connected. The impedance of a glass electrode can be up to 1000 MOhm.

Symmetrical connection of pH electrodes

The symmetrical high-resistance input is an alternative method of connecting pH electrodes to a transmitter. In this case, both glass and reference electrode have a high-resistance connection to the transmitter. This connection type makes it imperative to make an additional connection of the liquid potential to

(1) Glass electrode (2) Reference electrode (3) Operational amplifier

(1) (2)

(3)

11 Appendix

the transmitter.

With the symmetrical connection, even difficult electrical ambient conditions can be compensated.

If, for example, an electric motor for a mixer conducts a fault current into the substance being measured, this will result in a potential shift with regard to the system ground. With the usual asymmetrical connection, a fault current may flow to the system ground via the stray capacitance (which occurs in all instruments), thus causing a measurement error.

In case of the symmetrical connection, both inputs are fed to the instrument electronics via operational amplifiers. These operational amplifiers cancel the fault current (up to a certain degree), thereby preventing measurement errors.

Impedance monitoring

Impedance monitoring of glass pH combination electrodes make high demands on the transmitter electronics. The measurement needed for this is performed in parallel to the acquisition of the main measurement variable. To minimize the load on the electrode, the reaction time may be up to a minute. With the asymmetrical connection of the glass and reference electrode, the cumulative impedance can be monitored. Monitoring the reference electrode is not recommended, since the measured value is difficult to interpret. Impedance measurement depends on the cable material, cable length and the components that are used. Special JUMO cables for pH measurement may be up to 10 m long. If ISFET sensors or impedance converters are used, then impedance monitoring is not possible.

(1) Glass electrode (2) Reference electrode (3) Operational amplifier (4) Grounding pin

(1) (2)

(3)

(4)

(3)

11 Appendix

Pulse width controller (output is active for X > W and a P control structure)

If the process value X exceeds the setpoint W, the P controller will control proportionally to the control deviation. On going outside the proportional band, the controller operates with an output level of 100% (100% duty cycle).

Pulse frequency controller (output is active for X > W and a P control structure)

Special controller functions

The following functions can be activated in this menu:

- Manual mode (activate controller outputs manually), see section 6.6 "MANUAL mode / simulation mode", page 33

- Separate controllers (see below)

- I-component switch-off (see below)

Process value X

Setpoint W

Proportional band X

100%

50%

Output level y

Switching period

10%

90%

10%

50%

Off

10%

90%

X - W

100%

50%

No pulses

50% of pulse frequency

Maximum pulse frequency

Setpoint W

Proportional band X

X - W

Output level y

Process value X

11 Appendix

Separate controllers

This function is normally deactivated (factory setting or "No" selection). In the deactivated state, the software prevents the two controller outputs from

being able to work "against each other". So, for example, it is not possible to dose acid and lye at the same time.

If the controllers are separate ("Yes" selection), each controller can be freely configured.

I-component switch-off

This function is normally deactivated (factory setting or "No" selection). In the deactivated state, the controller works in accordance with general con-

troller theory. When I-component switch-off is activated ("Yes" selection), the part of the out-

put level that can be traced back to the I-component is set to zero when the setpoint is reached.

This can be useful with mutual neutralization (acid and lye dosing both possible) in one treatment tank.

Wash timer

The wash timer can be used to implement automated sensor cleaning. This function is assigned to a switching output (1 or 2) for that purpose.

The cycle duration (cleaning interval) can be adjusted in the range from 1 to 240 hours. The wash duration (cleaning duration) is adjustable from 1 to 1800 seconds. During the wash duration the controller goes into the HOLD state, which is maintained for 10 seconds after completion of the wash duration. A sensor calibration within the cycle duration restarts the wash timer.

The wash timer is deactivated with the "0" cycle duration.

12 Instrument description

12.1 Technical data

12.1.1 Inputs

12.1.2 Temperature compensation

12.1.3 Measuring circuit monitoring

12.1.4 Impedance measurement

12.1.5 Binary input

Main input Measurement/control range Accuracy Temperature error

pH -1 to 15 pH ≤ 0.3% 0.2%/10°C ORP -1500 to 1500 mV ≤ 0.3% 0.2%/10°C NH

(ammonia) 0 to 9999 ppm ≤ 0.3% 0.2%/10°C

Secondary input

Temperature Pt100/1000 (automatic detection)

-10 to 150°C

≤ 0.5°C 0.05%/10°C

Temperature NTC/PTC

4kΩ max. Input via table with 20 value pairs

≤ 0.3% 0.05%/10°C

Measured variable Compensation Range

pH yes -10 to 150°C ORP no not applicable NH

(ammonia) yes -10 to 150°C

Inputs Over/underrange Short-circuit Cable break

pH yes yes

yes

ORP yes no no NH

(ammonia) yes no no

Temperature yes yes yes

Impedance measurement can optionally be activated. Since it depends on some marginal parameters, the following points must be noted:

- Only glass-based sensors are permissible (no ISFET or antimony electrodes).

- The sensors must be directly connected to the transmitter. It is not permissible to use an impedance converter in the measuring circuit !

- The maximum permissible cable length between sensor and transmitter is 10 m.

- Liquid impedances will directly influence the measurement result. We therefore recommend activating the measurement in liquids from about 100 µS/cm conductivity upwards.

Activation through floating contact Function Key inhibit

HOLD Alarm suppression

Switchable to °F

Please note operating temperature range of sensor !

In the case of pH measurement, the sensor can be monitored for short-circuit and cable break by activating the impedance

measurement.

12 Instrument description

12.1.6 Controller

12.1.7 Analog outputs (one or two)

12.1.8 Switching outputs (two changeover (SPDT) max.)

12.1.9 Supply voltage for ISFET

12.1.10 Setup interface

12.1.11 Electrical data

Controller type limit comparators, limit controller, pulse width controller, pulse frequency controller,

modulating controller, continuous controller

Controller action P / PI / PD / PID A/D converter dynamic resolution up to 14-bit Sampling time 500 msec

Output mode Signal range Accuracy Temperature error Permissible

load resistance

Current signal 0/4 — 20 mA ≤ 0.25% 0.08%/10 °C ≤ 500Ω Voltage signal 0 – 10 V ≤ 0.25% 0.08%/10 °C ≥ 500 Ω The analog outputs respond in accordance with the recommendation as per NAMUR NE43.

They are electrically isolated, 30 V AC / 50 V DC.

Rated load 3 A/250 VAC (resistive load) Contact life >2x10

operations at rated load

±5 V DC; 5 mA

Interface for configuring the instrument through the optionally available setup program (for instrument configuration only).

Supply voltage 110 — 240 V AC; -15/+10%; 48 — 63 Hz

20 — 30 V AC/DC; 48 — 63 Hz 12 — 24 V DC +/-15% (permissible for connection to SELV/PELV circuits only)

Power consumption approx. 14 VA Electrical safety EN 61 010, Part 1

overvoltage category III

, pollution degree 2

Data backup EEPROM Electrical connection pluggable screw terminals

conductor cross-section up to 2.5 mm

(supply, relay outputs, sensor inputs)

conductor cross-section up to 1.5 mm

(analog outputs; ISFET supply)

Not valid with protective extra-low voltage (PELV) of power supply variant 12 — 24 V DC.

12 Instrument description

100

12.1.12 Housing

12.1.13 Standard accessories

12.1.14 Approvals/marks of conformity

Material ABS Cable entry cable glands, 3xM16 and 2xM12 max. Special feature venting device to prevent condensation Ambient temperature range

(the specified accuracy is adhered to within this range)

-10 to 50°C

Operating temperature range (instrument is operational)

-15 to 65°C

Storage temperature range -30 to 70°C Climatic conditions rel. humidity ≤ 90% annual mean, no condensation

(following EN 60721 3-3 3K3)

Enclosure protection

as per EN 60529

in surface-mountable housing: IP67 for panel mounting: IP65 front, IP20 rear

Vibration strength as per EN 60068-2-6 Weight surface-mountable housing: approx. 900 g

for panel mounting: approx. 480 g

Dimensions see dimensioned drawings on page 8.

Cable glands Internal mounting material Operating Instructions

Mark of conformity

Testing laboratory Certificates/certification

numbers

Test basis valid for

c UL us Underwriters Laboratories E 201387 UL 61010-1 all types

JUMO AQUIS 500 pH, 202560, AQUIS 500 Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual