Omega CDCN442 User guide

CDCN442
Omega

CDCN442
Concentration Conductivity Meter

Instruction Manual

Conductivity and Concentration Analyzer

CDCN442

Index

Specifications .........................................................3

Mechanical Description..................................................4

Dimensional ..........................................................5

Typical Installation......................................................6

Electrical Installation....................................................7

Interconnection Barr....................................................8

Electrical Schematic....................................................9

Equipment Operation ..................................................10

Equipment Operation - Concentration Set Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Equipment Operation - Concentration Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Equipment Operation - Concentration Read. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Equipment Operation - Conductivity Set Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Equipment Operation - Conductivity Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Equipment Operation - Conductivity Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Cell Maintenance .....................................................22

Communication Protocol................................................23

Troubleshooting ......................................................24

2.

General

Case Material Cast Aluminum SAE 323(BASE)

ABS(Frontal Lid)
Finishing Electrostatic Epoxy Paint
Electrical Connection Terminal Barr
Cable Inlet Cable kncokout 3/8” (4x)

Assembly 2" Tube, Flat Surface or Panel
Enclosure IP-68
Power Consumption 3.5 VA
Weight 1.3Kg.
Electrical Power 90 thru 240 Vac ( 50/60 Hz)
Operating Temperature 5 thru 40 ºC
Relative Humidity 20 thru 80%

Analyzer/Transmiter

Display Alphanumeric 2 lines x 16 characteres
Conductivity Ranges 5 thru 2000 mS/cm
Concentration Range Consult list on page 11
Temperature Range 0 thru 200 ºC (Others upon request)
Automatic Temperature

Compensation

0 thru 200 ºC (Others upon request)

Output Signal

Analogic 4 - 20 mA w/ adjustable output range.

Digital RS-485 bilateral thru software up to 36

equipments 2 Km apart.
Galvanic Isolation 2000 VAC (by opto coupler)
Line Resistance 1KOhm

Controler

Actuation Type Frequency Modulation, P+Di
Set-Point 1 independent from 0 thru 100% of scale
Output 1 control ON-OFF
Actuation Type Frequency Modulation, P+Di

Sensor

Type Toroidal (Electrodeless)
Body Material PVDF (Kynar)
Range 10 mS thru 2 S
Temperature (@ Atm. Pr.) 0 thru 100ºC
Max. Pressure (@ 25ºC) 10 Kgf/cm2
Insertion lenght 100mm
Process Connection Threaded Point 2” (CIP and others upon request)

Specifications

R 485

ACCESSORIES: supplied with the equipment : installation hardware (2x), Instruction Manual, SS
Clamps with nuts and washers.

S

3

3.

This equipment is offered in SAE-323 aluminum with lower oxidation level, anti corrosion treatment and electrostatic epoxy
paint finishing and frontal lid in ABS . Built in small and light size, complying with IP-68 Standard.
Under the same case you will find: Local Indicator, Analyzer, Transmitter and Controller.
The mounting of the instrument can be done on 2” Tube" or in Flat Surface or Panel (DIN144).
The electrical connection is possible through a terminal block located internally at the lower portion of the case and the
cable knockouts are located in the bottom of the case, 4x 3/8” BSP.

Mechanical Description

6

2

3

1

5

CDCN442
Omega

4

1 - Frontal Lid in ABS.
2 - Display alphanumeric 2 lines x 16 characters.
3 - 3 keys Tactile Membrane Keyboard:

<SELECT>

= Select the desired operation, flashing option.

<ENTER>

= Enter the program commands for analysis, confirm above Selected Function.

<ESCAPE>

= Move back one step at every touch.
4 - Cable knockouts (4) 3/8” BSP.
5 - Aluminum Case (SAE-323)
6 - Installation Hardware for Wall Mounting, 2” tube and panel.

4

4.

Dimensional

145

¢73

¢154

145

SELECT FUNCTION

Conductivity Analyzer

¢73

Ø8(4x)

CDCN442

70

¢154

Note: Dimensions in millimeters

84

5

5.

The CDCN442 can be installed in 3 different ways: Panel, 2” Tube and Flat Surface.
For installation purpose the instrument is offered with the following hardware: 2 Installation Support, 4 SS
screws ¼" x ½", 4 plain SS washers ¼", 2 "U" SS clamps , 2 SS screws and 2 SS plain ¼".
These hardware allow 3 different ways for installation, to know:

a) Installation in 2” tube: Uses 2 installation support + 2 "U" clamps with nuts and washers.
b) Installation in Panel: Uses 2 installation support ; the edges will be placed against the internal surface of

the panel, 4 screws. ¼" x ½” will be used to hold it in place.
c) Installation in Flat Surface(Wall Mount): Uses 2 installation support and “U” clamps holes are also used to
Hold the instrument in place at flat surface.

Typical Installation

Flat Surface Installation

2” Tube Installation

Panel Installation

6

6.

1- Remove the equipment from the box and inspect for any possible damage caused by the transportation;
2- Install the instrument in an area that offers easy access and handling, exempt of vibrations, following the
installation procedures Topic 5 - Typical Installation - page 6;
3- Avoid exposing the equipment to direct to solar rays and if necessary provide a covering;
4- Verify if the electrical installation is correct, if security hardware is available (circuit breakers);
5- Proceed with the equipment installation.

Electrical Installation

Electrical installation

1- Remove the front lid of the equipment
2- Insert the cables through the cable knockouts, certify that the connections are correct, verifying thru the
identification drawing and the electrical schematic;
3- The wires must be correctly positioned in order to avoid humidity access to the equipment case,

Never mend the Toroidal Cell cables! This may cause reading errors!

Important Recommendations

1.1. The electrical power of the equipment, must be independent from other system components. Being so,
the cable that powers the Control Valves, Solenoids, Alarms and others, must be connected directly to the
Distribution box and "never" at the connection barr of the equipment.

1.2.Verify if the cable knockouts of the equipment and probes are firmly attached to its respective
interconnection cables. This procedure is necessary in order to preserve the enclosure protection (IP-68).

1.3.Be careful with Humidity !!. It diminishes the impedance, generating reading errors. Verify the cable
knockouts and if necessary, dry the interconnection barr using a hair dryer.

1.4.Never cut or mend the cell cables.

1.5.ON-OFF outputs are thyristor type, offering many advantages for the equipment, such as : spark free,
quicker commutation, noise practically zero, exempt of RF interference and many more. Outputs can
commutate any charge, since they are powered by alternate tension (VAC), limited to 250V / 1A.

7

7.

Interconnection Barr

CN

1

CN2

Slots
1 & 2

3

4 & 5

6 , 7 & 8

9 & 10

11 thru 16

Fuses

F1
F2

Coll.

Coll.

BL BLUE

REDBL

1516

14

Coll.

BLUE

RED

13

12

mA

4-+

11

Connections

Electrical Power 90-240Vac - 50/60 Hz
Grounding
Set Point 1Output (SP 1)
Digital Rs485 Output
Transmission Output 4 - 20mA
Toroidal Cell Connection

Connections

General Fuse (1A / 250V)
Set Point 1 Fuse (1A / 250V)

20

910

8 6

RS485 SP1

+

C

5

7

4

O
N

3

2 1 F2F1

AC

CDE-442 Cell Connection to the Inteconnection Barr

The CDE-442 cable cell offers terminal pin type, in order to be screwed in a connector Conexell Type 6 pins.
For the connection, insert the cell cable and screw the terminals at the connector obeying the numerical
sequence identified below.

Red(13)

Colorless (14)Red

Black(15)

Colorless Black(16)

Blue (11)

Colorless Blue (12)

After connecting the cell at CN1 at the interconnection board, tie the cable knockout firmly.

8

8.

Electrical Schematic

MAIN BOARD

2
F

1
F

1

AC

2

3

N

a

4

1
P
S

C

5

2
N
C

1
N
C

Connectors Description

6

5

+

8
4

7

S
R

-

8

+

2

0

9

A
m

4

0
1

e

1
1

Blu

.

ue

oll.

l

2

B

C

1

d

3

R e

1

l;
olC

4

ed
R

1
5

Blac

1

.

c

oll

6

Bla

C

1

F2 = 1A / 250V (S P1)

F1 = 1A / 250V (GENERAL)

g
n

i

r
e

w

r
o

t

e em

l

e
n

F a

Con c

Note: it is important to use independent

phases and cables for

equipments and control or

alarm valves.

ELECTRICAL

DISTRIBUTION

BOX

o
P

e 1l
b

a
C

d
n
u

Gro

l
b e 4
a

3

e 2l
b

a
C

l

Cab e

C

32
2

RS

Converter

5
48

s
R /

Graphic Register

5l
e
b

a
C

or PLC or SDLC

l
a

l

d

l

i

e

r

C

To o

Controller

or

Alarm

PC

Pin Color Description:

Pin# Color

11 Blue

12 Colorless Blue

13 Red

14 Colorless Red

15 Black

16 Colorless Black

9

9.

Element Range

HNO

3

0 thru 280 g/L
HF 0 thru 300 g/L

NaOH 0 thru 150 g/L
NaOH 150 thru 500 g/L
H2SO

4

0 trhu 300 g/L

H2SO4 350 thru 800 g/L
H2SO4 940 thru 998 g/L
H2CrO

4

0 thru 100 g/L

NaCL

0 thru 260 g/L
K2CO3 0 thru 315 g/L
Na2SO4 0 thru 220 g/L

HCL 200 thru 350 g/L

Equipment Operation

Important Information

1-While at Reading, it is possible to obtain the following information:
When key is pressed, it is possible to obtain the Set Point and transmission values.
If key is pressed the equipment will go to STAND BY. While in STAND BY the outputs will be
turned off, that means, the Current Output will go to 4mA and the contact to NO (Normally Open). The
outputs must be programmed by the user during Set Up Mode.

2- key is recognized, only when pressed and held for about 5seconds. This time is necessary to
certify the desire to exit this operation.

3- When a power failure occurs, the equipment, when powered again, will return to prior conditions, the
Outputs and the indication will follow the conditions prior to the power failure.

4- During certain steps of the analysis program, it is allowed to adjust certain values, such as: Calibration,

Reading Time, Set-Point, Hystereses, 4mA and 20mA values.

<SELECT>

<ENTER>

<ESCAPE>

Operation Mode

The equipment is offered for many process element analysis. For this, equipment leaves factory with a pre­recorded memory with all elements listed below, allowing the user to select the desired element suitable for
the desired application.
For Conductivity application the offered range is from 5 through 2000 mS/cm. For Concentration, verify
below table showing all elements and its respective ranges for selection. User can also select during Set Up
Operation the Unit being used g/L or %.

As the equipment analysis program was developed obeying a standard structure, it is supplied as an
example the Conductivity flow and also for Concentration for NaOH. For other elements, the only change
would be the reading range.

10

9.

Equipment Operation (cont.)

Set Up Operation

The menus are self explanatory with its respective options, that are selected by pressing key. When the
selected option flashes, press key to confirm the selected option.
If a mistake is made, press key to go back (one step at every touch) and modify the option, except while
during Reading Mode, when key needs to be held for about 5seconds in order to exit this mode.

The equipment offers a non-volatil memory (E2PROM), in order to store operations functions (resolution,
reading, Calibration and more). Even when turned off from power, all functions chosen during set up will remain
stored.

Before starting any work with the equipment, it is recommended to to certify
that you have chosen the correct options for the operation .
When at the , press key in order to select the desired function, flashing
option, then press , press key until SET function flashes, then
press . A Password will be requested, press in sequence ,

<ENT>

flashing option, press key until the desired option flashes then press
In order to move to the next screen, user must press .

FUNCTION SELECT

<ENT>

<ENT>

, then follow step by step the options shown at the screen. In case the user desires to change the

key to confirm the option chosen

<ESC>

<SEL>

<ENT>

<ESC>

<ESC>

menu

key. In order to access the

<SEL>

SET UP

<ENT>

key

verify the SET UP parameters,

<SEL>

<ENT>

<SEL>

<SEL>

key to confirm the option.

Read Operation

At this operation user will have options to and . In case the desire is to

Sensor option flashes, then press key to confirm the option chosen

this point on the program will guide the user step by step on how to proceed with the perfect calibration. In case
the desire is to Read, press key until option key to confirm, then the
Display show the following form:

, press key until . From

<SEL>

<ENT>

Cal

<SEL>

CALIBRATE READ CALIBRATE

flashes, then press

Read

4

<ENT>

3

the

»»»»» »»»

-> »»»»»»»

1

1- The "Prompt" is a signal that flashes every time a reading is performed, depending upon the time between
readings, that can be selected during Set Up Mode.
2- The measured value and the element unit.
3- Sample Temperature.
4 - Read Element.

2

11

Certificado de Garantia

1.

9.

1) The CDCN442 equipment software, offers self-explanatory menus interacting with the user. The

dialog between the Analysis Program and the user, is achieved thru a 2x6 alphanumeric display. The
main menus and hidden options menus are displayed to the user. The hidden option menus, are
displayed using arrows where one of them will flash and in order to access the hidden options, press
<SELECT> key and to confirm the option chosen press <ENTER> key. Always use <SELECT> key in
order to change the option at the menu, then use <ENTER> key to confirm the option chosen.

Note: at this manual the hidden options are displayed on the side of the function, as shown
below:

Equipment Operation (cont.)

SELECT OPTION

Option 1 _>

Note: at this manual the active Menus will be displayed in color.

2) If a mistake or error happens and it is necessary to change data or to return to a previous screen,
press <ESCAPE> key.

Find below an example.

SELECT OPTION

Option 2 _>

3)In certain program steps, where value adjustments are offered, the symbols “<” (decrease) and “>”
(increase), follow steps as shown below:

Blue

Say the user had selected Option 2 but
he made a mistake and wants to change to
Option 1. Press <ESCAPE> key and the screen
will move bak to prior screen.

Hidden option for
Set Up & Calibration

OPTION 2
SELECTED

CALIBRAT. POINT

10.0 mg/L <>

Press <SELECT> key in order to
alternate betwen options decrease (<)
or increase ( ) from the value
displayed, then confirm by pressing
<ENTER> key.

4) The equipment stores the configuration on a non-voltile memory (E PROM). Even when turned off,
the last working conditions will be sustained.

>

CALIBRAT. POINT

11.0 mg/L <>

Press <SELECT> key alter the value.
When reached the desired value,
press <ENTER> key accept the value
and move to next step.

2

12

9.

When powering the equipment, the display will show the model and software version then the aplication
where the equipment was last being used at the process.Finally the Process Reading will be displyed.

Equipment Operation (cont.)

Main Menu

Analyzer

CDCN442 V.1.0

Equipment Model and Software
Version will be displayed.

Read:

The Element chosen during Set Up.
Ex. NaOH, range 0 thru 100 g/L.

NaOH 0-100g/L

NaOH 25ºC

-> 10.0 g/L

SELECT

Read _>

The read value obtained for NaOH
from the sample, just after being
powered (instantaneous read).

Press <ENTER> key to go to Stand By,
press again to go back to Reading Mode...
Press and hold <Escape> key in order
to move back to the Main Menu where
the arrows indicate hidden options

SELECT

Read _>

SELECIONE

SELECT

Setagem _>

Set Up _>

Or

Press <SELECT> key, in order to
access the Set Up or Calibration option
(hidden options). Confirm the chosen
option by pressing <ENTER> key.

Select Set Up option, press <ENTER>
key then follow the flow diagrham from
item 9.1 on page 14.

SELECT

Calibration ->

Select the Calibration option, then follow
the flow from item 9.2 on page 16.

13

Operação do equipamento - Setagem

10.

9.1

Equipment Operation - Concentration Set Up

Cocentration Set Up Menu: allows user to prepare the equipment for process concentration analysis, as
desired by the user.

A

D

From page 15

SELECT

Set Up _>

SELECT

_> Portuguese

Hidden Options

English or Spanish

Configure

S

R 485? _>Yes

Bits per Second

_>9600

Hidden Option

No

Hidden Option

1200
2400
4800
19200

Hidden Option

No

Configure

Analyzer? _>Yes

FUNCTION

_>Concentrat.

UNIT

_> g/L

SELECT

NaOH 0-15 g/L_>

CALIBRATION

_>Manual

Calibrate in?

_>Concentrat.

Calibration Pt.

100g/L <>

New Cell?

_> No

Configure

Output: _>Yes

Data Bits

_>8

Hidden Option

Conductivity

Parity

_>Even

Eqpto.Network

Hidden Option

%

Consult Page 10
for a list of
Elements

Number: 1 <>

Configure

4-20mA? _>Yes

Value 4mA

Hidden Option

Auto

0g/L <>

Value 20mA

Hidden Option

Conductivity

Using the arrows
< or > to adjust
Calibration Point.
.Confirm pressing
<ENTER> key. See
page 12.

Hidden Option

Yes

150g/L <>

Burnout 4-20mA

20mA _>

Adjust

4-20mA ? _> Yes

Thermostatize

Hidden Option

No

[email protected]ºC<>

Adjust values.
See page 12

Place Ampmeter

@ 4-20mA Output

Hidden Option

7

Hidden Option

Odd

Using the arrows
< or > adjust
the equipment#
within the network.
Confirm pressing
<ENTER> key.

Using the arrows
< or > adjust the value
for 4 mA and 20 mA.
See page 12

Hidden Option

4 mA
Last Value

Hidden Option

No

Go to Page 15

Connect an Ampmeter
to contacts 9 & 10 from
Cn2.

B

Reading Mode

_>Continuous Ready?

Time bwetween

Read 1s. <>

Config.

Transmis.? _>Yes

Hidden Option

No

WAIT

...............

Hidden Option

Average

Using the arrows
< or > adjustar
Calibration Point.
.Confirm pressing
<ENTER> key.
See page 12.

A

Thermostatize

[email protected]ºC<E>

WAIT

>>>>>>>>>>>>>>

Stabilizing

Press
<ENTER>
to continue

Adjust : 4mA

<Sel> - <Esc> +

Adjust : 20mA

<Sel> - <Esc> +

C

Go to Page 15

Press <ENTER> key

Adjust the 4-20mA current
values, <SELECT> key
will decresase and
<ESCAPE> key will
increase the current
value

14

10.

9.1

Operação do equipamento - Setagem

Equipment Operation - Concentration Set Up

From page 14

B

C

Configure

Control? _>Yes

Control

On-Off _>

Set-Point

100g/L <>

Acting

Direct _>

Hystereses

0g/L <>

Burnout Control

Open _>

From page 14

Hidden Option

No

Hidden Option

PWM

Adjust Set-Point, using arrows
< or >. See page 12.

Hidden Option

Reverse

Adjust Hystereses, using
arrows < or >. See page 12..

Hidden Option

Last Value
Closed

WAIT

................

D

Go to page 14

15

10.

9.2

Operação do equipamento - Setagem

Equipment Operation - Concentr. Calibration

SELECT

_>Calibration

Place Cell @

Yes

100g/L

NaOH

Ready?

CALIBRATING

Cell is
OK?

Choose Calibration, then,
press <ENTER> key.

Follow screen instructions.

Press
<ENTER> key

No

Attention!!!

Verify Cell

Verify Standard

<ENTER>

Verify Cell physical
and function conditions.

Verify the Standard
conditions being used!
If good, press <ENTER>

16

10.

9.3

Operação do equipamento - Setagem

Equipment Operation - Concentration Read

SELECT

_>Read

NaOH 25ºC

-> 10.0 g/L

Press
<SELECT> key

18.50 mA

25ºC

-> 908.1 mS/cm

10.0 g/L <>

Press
<SELECT> key

Read Value

Current Value refering
to read will be displayed.

Press
<SELECT> key

Conductivity Value
will be displayed

Press
<SELECT> key

If during Set Up Manual Calibration was chosen,
Press <Select> key in order to adjust the value
read..

NOTE: during read Mode, pressing and holding <ESCAPE> key will instruct the program analysis to

exit the mode, moving back to the Main Menu. This action will not halt the Reading Operation
while user performs another operation, reading will still be performed by the instrument.
If user desires to halt Reading Operation, first place the instrument in Stand-By pressing
<ENTER> key, then press and hold <ESCAPE> key to exit reading and access other program
area.

17

Operação do equipamento - Setagem

10.

9.4

Equipment Operation - Conductivity Set Up

Conductivity Set Up Menu: allows user to prepare the equipment for process conductivity analysis, as
desired by the user.

A

D

From page 19

Hidden Option

No

SELECT

Set Up _>

SELECT

_> Portuguese

Configure

Analyser? _>Yes

FUNCTION

_>Conductivity

RANGE

RESOLUTION

0.1 _>

CALIBRATION

_>Manual

Calibration Pt.

111.9 mS/cm <>

New Cell?

_> No

Configure

Display: _>Yes

Reading Mode

_>Continuous

Configure

RS485? _>Yes

Bits per Second

Hidden Options

English or Spanish

_>9600

Data Bits

_>8

Hidden Option

Concentration

Parity

_>Even

Eqpto.Network

Press

5 - 2000 mS/Cm

<ENTER>

Number: 1 <>

Configure

4 - 20mA? _>Yes

Hidden Option

1

Value 4mA

Hidden Option

Auto

Using the arrows
< or > to adjust
Calibration Point.
.Confirm pressing
<ENTER> key.
See page 12.

10.0mS/cm <>

Value 20mA

10.0mS/cm <>

Burnout 4 - 20mA

Hidden Option

Yes

Hidden Option

No

Hidden Option

Average

Thermostatize
Cell:25.0ºC<>

Adjust value.
See page 12

20mA _>

Adjust

4 - 20mA ? > Yes_

Place Ampmeter

@ Output 4-20mA

Hidden Option

No

Hidden Option

1200
2400
4800
19200

Hidden Option

7

Hidden Option

Odd

Using the arrows
< or > adjust
the equipment#
within the network.
Confirm pressing
<ENTER> key.

Hidden Option

No

Using the arrows
< or > adjust the value
for 4 mA and 20 mA.
See page 12

Hidden Option

4 mA
Last Value

Hidden Option

No

Go to Page 19

Connect an Ampmeter
to contacts 9 & 10 from
Cn2.

B

Reading Time

1s <>

Configure

Transmis.? _>Yes

Hidden Option

No

WAIT

...............

A

Using the arrows
< or > to adjust
Calibration Point.
.Confirm pressing
<ENTER> key.
See page 12.

Thermostatize

Cell:25.0ºC<E>

WAIT

>>>>>>>>>>>>>>

Stabilizing

Press
<ENTER>

Ready?

Adjust : 4mA

<Sel> - <Esc> +

Adjust : 20mA

<Sel> - <Esc> +

C

Go to Page 19

Press <ENTER> key

Adjust the 4-20mA current
values, <SELECT> key
will decresase and
<ESCAPE> key will
increase the current
value

18

10.

9.4

Operação do equipamento - Setagem

Equipment Operation - Conductivity Set Up

From Page 18

B

C

Configure

Control? _>Yes

Control

On-Off _>

Set-Point

10.0 mS/cm <>

Acting

Direct _>

Hystereses

0.0 mS/cm <>

Burnout Control

Open _>

From Page 18

Hidden Option

No

Hidden Option

PWM

Adjust Set-Point, using arrows
< or >. See page 12.

Hidden Option

Reverse

Adjust Hystereses, using
arrows < or >. See page 12..

Hidden Option

Last Value
Closed

WAIT

................

D

Go to page 18

19

10.

9.5

Operação do equipamento - Setagem

Equipment Operation - Conduct. Calibration

SELECT

_>Calibration

Place Cell @

Yes

111.9 mS/cm

Ready?

CALIBRATING

Cell is
OK?

Choose Calibration, then,
press <ENTER> key.

Follow screen instructions.

Press
<ENTER> key

No

Attention!!!

Verify Cell

Verify Standard

<ENTER>

Verify Cell physical
and function conditions.

Verify the Standard
conditions being used!
If good, press <ENTER>

20

10.

9.6

Operação do equipamento - Setagem

Equipment Operation - Conductivity Read

SELECT

_>Read

25ºC

-> 908.1 mS/cm

18.50 mA

908.1 mS/cm <>

Press
<SELECT> key

NOTE: during read Mode, pressing and holding <ESCAPE> key will instruct the program analysis to
exit the mode, moving back to the Main Menu
If <ENTER> key is pressed, the equipment will go to Stand -by Mode.

Read Value

Press
<SELECT> key

Current Value refering
to read will be displayed.

Press
<SELECT> key

If during Set Up Manual Calibration was chosen,
Press <Select> key in order to adjust the value
read..

NOTE: during read Mode, pressing and holding <ESCAPE> key will instruct the program analysis to

exit the mode, moving back to the Main Menu. This action will not halt the Reading Operation
while user performs another operation, reading will still be performed by the instrument.
If user desires to halt Reading Operation, first place the instrument in Stand-By pressing
<ENTER> key, then press and hold <ESCAPE> key to exit reading and access other program
area.

21

Operação do equipamento - Setagem

10.

10

It is recommended a visual inspection of the cell periodically and if noticed the cell is dirty, please wash
it using neutral detergent and wash it throughly.
After the cleaning please proceed with the cell calibration.

Cell Maintenance

22

11.

1) Proprietary:

Order:

ESC ID P CR LF
0x1B 0x50 0x0D 0x0A Hexadecimal

Answer:

L > > V V V V V V mS C C C C C C m A

Example of answer for an un-stable value

L > 20 mS 1 2 . 0 0 m A

Example of answer for a stable value

Communication Protocol

The ID is configured at the instrument from 1 to 32.

L > > 20 mS 1 2 . 0 0 m A

Note: a) When the answer comes a C instead of a L, it means that the equipment is under
calibration function (is being operated in location by the user, executing the calibration
operation at the instrument).
b) When the answer comes an S instead of a L, it means that the equipment is under Set Up
function and it is being operated in location by the user.

2) RS485 – It is a “physical location”, where the proprietary protocol will be “transported”.

As factory default, this communication comes configured as:

Speed = 9600
Parity = none
Number of Bits = 8
Stop Bit = 1
ID = 1

23

12.

Symptom Verify Action

Equipmento does not power on

Electrical Power
General Fuse F1
If power is present at Pins 1 &
2 from CN2 connector

Verify the circuit breaker;
Replace fuse;
Verify terminal barr,
Connector & Power Cable

Set- Point does not operate or
fails

Set Up – verify if Set Point 1
was selected.
Contacts 4 & 5 from CN2
Fuse F2 ( Set-Point )

Enable Set Point 1 thru the
Set Up Menu;
Verify if wires for Set – Point,
Are properly connected;
Replace Set Point Fuse.

Output Current 4–20mA,
does not operate.

Set Up – verify if 4-20mA
values were adjusted.

Enable and adjust 4-20mA
values thru Set Up Menu.

Equipment does not calibrate

Valid Standard Solution;
Standard Solution Fungus;
Set Up is correctly
programmed.

Use a new Standard Solution.
Use a new Standard Solution.
Re-do Set Up procedure.

Equipment does not read
correctly

Keyboard does not function
properly
Calibrated with a wrong
Standard Solution value;
If cell is damaged;
Cell cable damaged.

Replace keyboard;
Re-do calibration using a new
Standard Solution.
Replace Cell.
Replace Cable.

Serial port does operate if Serial port is on. Enable RS-485 thru the Set Up

menu.

Troubleshooting

R 485S

24

Symptom

Verify Action

Electrical Power Verify the circuit breaker

Equipment does not
power on

If Pins1&2 from the terminal
barr are powered

General Fuse F1
Verify the equipment
connectors and power cable

Standard Solution Expiration
Date

Use a new Standard Solution

Fungus presence at Standard
Solution

Use a new Standard Solution

Suspicious Calibration

If the Set Up operation was
performed correctly

Re-do Set Up operation

Equipment does not
allow new calibrations

If the Standard Solution value
is compatible with the
calibration curve values

Replace Standard Solutions.
Contact Customer Service.

If the keyboard is working
properly

Replace keyboard

Equipment does not read
correctly

Damaged cell, broken or
damaged cable

Replace Cell

Serial Port not working
properly

If Serial Port is on Access the Set Up Menu and

verify if RS-485 is enabled

12.

Troubleshooting (cont.)

R 485S

25

M-4516/0209