Omega CDCN5800 User guide

User’s Guide

IS O9002

CERTIFIED

CORPORATE QUALITY

MANCHESTER, UK

Relay 1

40

20

0

S/cm

60

Relay 2

80

100

Shop online at

ENTER

omega.com

®

www.omega.com

e-mail: [email protected]

ISO 9001

CERTIFIED

CORPORATE QUALITY

STAMFORD, CT

TM

CDCN-5800

Conductivity/Resistivity Controller

omega.comomega.com

TM

®

OMEGAnet® Online Service Internet e-mail

www.omega.com [email protected]

Servicing North America:

USA: One Omega Drive, P.O. Box 4047

ISO 9001 Certifi ed Stamford CT 06907-0047

TEL: [phone] FAX: [phone]
e-mail: [email protected]

Canada: 976 Bergar

Laval (Quebec) H7L 5A1
TEL: [phone] FAX: [phone]
e-mail: [email protected]

For immediate technical or application assistance:

USA and Canada: Sales Service: 1-800-826-6342 / 1-800-TC-OMEGA

Customer Service: 1-800-622-2378 / 1-800-622-BEST
Engineering Service: 1-800-872-9436 / 1-800-USA-WHEN
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FAX: [phone] [email protected]

Servicing Europe:

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TEL: [phone] FAX: [phone]
Toll Free in Benelux: 0800 0993344
e-mail: [email protected]

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TEL: [phone] FAX: [phone]
Toll Free: 0800-1-66342 e-mail: [email protected]

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TEL: [phone] FAX: [phone]
Toll Free in France: 0800 466 342
e-mail: [email protected]

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TEL: [phone] FAX: [phone]
Toll Free in Germany: 0800 639 7678
e-mail: [email protected]

United Kingdom: One Omega Drive, River Bend Technology Centre

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M44 5BD United Kingdom
TEL: [phone] FAX: [phone]
Toll Free in United Kingdom: 0800-488-48
e-mail: [email protected]

.

dy 1868, 733 01 Karvin. 8

®

®

®

It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply.
OMEGA is constantly pursuing certifi cation of its products to the European New Approach Directives.
OMEGA will add the CE mark to every appropriate device upon certifi cation.

The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts
no liability for any errors it contains, and reserves the right to alter specifi cations without notice.
WARNING: These products are not designed for use in, and should not be used for, patient-connected applications.

Shld

Signal IN

Temp. IN

Iso. Gnd

-

+

Red

White

Black

Silver (Shld)

Cell Constant

Range (mS):

0.01 0.055 - 100 (10 kΩ -18 MΩ)

0.1 1 - 1,000 μS

1.0 10 - 10,000 μS

10.0 100 - 200,000 μS

20.0 200 - 400,000 μS

4-20

mA

CDCN-5800
Terminals

= Double Insulated

= DC or AC power

OMEGA CDCN-5800 Conductivity/Resistivity Monitor Instructions

CAUTION!

• Refer to instruction manual for more details.

• Remove power to unit before wiring input and output connections.

• Follow instructions carefully to avoid personal injury.

Contents

1. Power Connections

2. Compatible Sensor Wiring

3. 4 - 20 mA Current Output Connections

4. Relay Connections

5. Relay Operation

6. Menu Functions

7. Parts Per Million (PPM) Factor

Remove terminal blocks

1.

for easy wiring

8. Temperature Coeffi cient

9. Parts and Accessories

10. Specifi cations

11. Quick Reference Menu Parameters

12. Troubleshooting

13. Maintenance

2.

3.

+

-

Shld

Red wire

Black wire

Silver wire

White wire

4-20

Iso. Gnd

Tem p. I N

Signal IN

mA

1 2

Model CDCN-5800

Model CDCN-5800

1 2

12-24 V

10 W

+

Relay 1Relay 2

Patent No. D 376,328

NC

C

NO

-

Patent No. 5,708,363 Conductivity

NO

C

NC

1. Power Connections 2. Compatible Sensor Wiring

CAUTION!
Never connect 110 VAC or 220 VAC to rear power

terminals. High voltage AC will damage instrument and
void warranty.

12-24 V

10 W

+

CDCN-5800
Terminals

-

External power
supply

-

12 - 24 VDC

OR

12 - 24 VAC

+

1 2

12-24 V

10 W

+

+

-

Shld

Red wire

Black wire

Silver wire

White wire

4-20

Iso. Gnd

Tem p. I N

Signal IN

mA

Relay 1Relay 2

Patent No. D 376,328

NC

C

NO

-

Patent No. 5,708,363 Conductivity

NO

C

NC

Technical Notes:

• To reduce the possibility of noise interference, isolate AC
power lines from signal lines.

• Maximum 4-20 mA loop impedance (sec. 3) is affected by the
supply voltage.

3. 4-20 mA Current Output Connections

Fuse**

1/8A

+

-

+

-

4-20

mA

CDCN-5800

Conductivity

Terminals

4 - 20 mA*

*

Technical Notes:

• Resistivity measurements within the 10 M to 18 M range

must be performed in solution temperatures from 20°C to
100°C.

• Use three conductor shielded cable for cable extensions up to
30 m (100 ft) max.

• Cable shield MUST be maintained through cable splice.

To isolate output and prevent ground loop problems:

1. Use monitor device with isolated inputs, or

2. Use separate DC supply for 5800CR and monitor device, or

3. Power 5800CR with 12 - 24 VAC step down transformer

Technical Notes:

** 1/8A fuse recommended (customer supplied)
* 4-20 mA output is internally powered (non-isolated),

maximum loop impedance 350  with a 12 V instrument supply
voltage, 950  with a 24 V instrument supply voltage.

A. LOW alarm mode

The relay is energized when the solution conductivity (μS) drops
below the setpoint, and is de-energized when the solution conductivity
rises above the setpoint plus hysteresis
(sec. 6.2F, 6.2G).

B. HIGH alarm mode

The relay is energized when the solution conductivity (μS) rises above
the setpoint and is de-engergized when the solution conductivity
falls below the setpoint plus hysteresis
(sec. 6.2F, 6.2G).

μ

S

μ

S

Low setpoint=

Adjustable hysteresis=

Relay energized=

Relay de-energized=

High setpoint=

Adjustable hysteresis=

Relay energized=

Relay de-energized=

C. Proportional PULSE mode

The proportional pulse relay configuration is primarily designed for metering pump control. The operator is prompted to enter a minimum and
maximum conductivity setpoint and maximum pulse rate for the assigned relay (sec. 6.2H, 6.2I). Relay pulse width is fixed at 130 ms. Refer to the
operation examples below.

• Metering pump chemical addition (dry contact activation type required)

Example 1 (right):

As the process conductivity (μS) rises above the minimum pulse setpoint (10 μS) the
relay begins pulsing; triggering the metering pump for deionized water addition.
As the process conductivity continues to rise, pulsing accelerates proportionally until
the maximum programmed pulse rate of 300 pulses/minute and setpoint (90 μS)
are reached, forcing the process conductivity back down to intended
levels (e.g. ≤10 μS).

Example 2 (right):
As the process conductivity falls below the minimum pulse setpoint (90 μS) the relay
begins pulsing; triggering the metering pump for chemical addition. As the process
conductivity continues to decrease, pulsing accelerates proportionally until the
maximum programmed pulse rate of 300 pulses/minute and setpoint (10 μS) are
reached, forcing the process conductivity back up to intended levels (e.g. 90 μS).

Relay 1 or
Relay 2

10

μS

90
μS

0 pulses

μ

S

Relay 1 or
Relay 2

90
μS

10
μS

μ

S

300 pulses

300 pulses

0 pulses

Relay 1 Rate

:

300 Pulses

/min

>

Relay 1 Rate:

300 Pulses/min >

4. Relay Connections

Two internal relay contact sets (COM, NO, and NC) may be used
for external device control. Front panel LED annunciators indicate
the activation status of each relay. Each relay can control up to
two devices simultaneously, as shown. Relay operation modes
include Low alarm, High alarm, and Proportional Pulse (sec. 5).

Common device connections include:

• Pulse mode - metering pump control

• Pulse mode - solenoid valve control

• Low or High mode - warning lamps

• Low or High mode - bells or sirens

• Low or High mode - external heavy-duty relay

CDCN-5800

Terminals

NO

C

NC

+

External AC/DC

Relay 1Relay 2

NO

power

Relay

De-energized

C

NO

NC

C

NC

Device

+

A

-

Relay

Energized

C

NO

NC

-

-

Device

B

+

Wiring Example Right
Device A IS powered when relay 2 is de-energized (front panel
LED "off"). Power is discontinued when the relay 2 setpoint is
reached (front panel LED "on"). Device B IS NOT powered when
the relay 2 is de-energized. Power is applied after the relay 2
setpoint is reached.

5. Relay Operation

Technical Notes:

• Maximum relay contact ratings: 5 A @ 30 VDC, 5 A @ 125 VAC,
or 3 A @ 250 VAC

• An external heavy-duty relay must be used for devices with
surge currents or operating currents that exceed the above specifi -
cations.

OPTIONS

CALIBRATE

VIEW

2s 5s

Press &
hold for
access:

ENTER

BA

D

E

C

AL
AR

M
1

AL

AR

M 2

0

100

AL

AR

M 1

ALAR

M

2

0-2/0-4,

0-6/0-8,

0-10/0-100

0

10

S/cm

S/cm

6. Menu Functions

To access either CALIBRATE or OPTIONS menus, press and hold
the ENTER key as illustrated below:

Menus:

• VIEW menu (sec. 6.1): The VIEW menu is displayed during

standard operation. The operator can navigate freely through
the menu by pressing either UP or DOWN arrow keys.

• CALIBRATE Menu (sec. 6.2): The CALIBRATE menu con­tains all critical display setup and output parameters. A simple
security code feature prevents unauthorized tampering. The
operator is required to enter a simple access code for menu
access. The same code also unlocks OPTIONS menus.

• OPTIONS Menu (sec. 6.4): The OPTIONS menu contains
setup and display features that are seldom accessed for minor
display or output adjustments.

• Reversible Dials

The 5800CR includes

a dial kit with 6
reversible dial faces
and units decals

(factory installed

dial: 0 - 100). See
dial kit for additional
information.

6.1 VIEW Menu

↓F

A.

B.

C.

D.

E.

F.

1

Choose:

Cond./temp.

Loop output

Range

Relay 1

Relay 2

Last calibration

↑A

2

Change:

3

Save:

Menu Displays A - F:
(Factory default displays shown in menu
column 1)

A. Active display of conductivity, resistivity, or

PPM (TDS) and Temperature in degrees
Celsius (°C) or Fahrenheit (°F).

B. Loop output display: shows the loop cur-

rent output level.

C. Range display: shows the programmed

min and max meter dial range (sec. 6.2D).

D. Relay 1 display: shows the programmed

operation mode and setpoint for relay 1
(sec. 6.2F).

E. Relay 2 display: shows the programmed

operation mode and setpoint for relay 2
(sec. 6.2F).

F. Last calibration: shows a user defi ned

setup date for maintenance records. This
feature is not an internal timer or calender.

Choose:

1

Change:

2

Save:

3

Mode Range

Relay

quick

press

To return to
VIEW:

quick
press

To restore original value:

Wet Calibration System calibration

Measured units

Meter Min→Max

Units

Last calibration

Optional

Press <ENTER> key to access
WET CAL procedure (sec. 6.3);
"Please Wait" briefly displays

Cell
type

Cell

value

Sensor

Range

PPM Factor

Factory default: 2.00

Shown only with PPM units selected above

Relay Low or High Mode Selected

Relay Pulse Mode Selected, Step F

Press keys in sequence

will appear during code entry.

to continue,

Mode Setpoint

Relay

Hysteresis

Relay

Pulse rate

Relay

ENTER

↓J

↑A

A.

B.

C.

D.

E.

F.

G.

H.

I.

J.

"SAVING"

briefly

displays

6.2 CALIBRATE Menu

Requirements
System calibration (Step E, WET CAL) is required for fi rst-time system setup or periodic sen-
sor verifi cation. System calibration can be performed with with a solution of know conductiv-
ity and an accurate thermometer, or with fi xed resistors. Refer to the WET CAL procedure
(sec. 6.3) for calibration details.

Menu Settings A - J:

(Factory default displays shown in menu
column 1)

A. Selects cell type and cell value:

• Standard cells: 0.01, 0.1, 1.0, 10.0,
or 20.0

• Custom (certifi ed) cells: 00.0000 -

999999.

See section 2 for recommended cell con-

stant and operation range

B. Selects displayed conductivity units;
Solution temperatures limited from 20°C

to 100°C for measurements from

10 M to 18 M.

C. Sets PPM factor when PPM display units

are selected (step B), 0.01 - 9.99. Refer
to section 7 for feature explanation.

D. Sets Min Max meter dial range (factory

installed dial, 0 - 100). Contact factory
for custom dial confi gurations. Does not

affect 4 to 20 mA output

E. Selects WET CAL procedure for fi rst time

system setup or periodic system recalibra­tion (sec. 6.3).

Menu items F - I repeat for relay 2 setup.

F. Sets relay operation mode Low or High,

and setpoint, 00.0000 - 999999. units
(sec. 5).

G. Sets relay hysteresis, 00.0000 - 999999.

units (sec. 5). Set to zero to disable
feature

H. Sets relay minimum and maximum pulse

setpoint, 00.0000 - 999999. units (sec 5).

I. Sets relay pulse rate, 000 - 300 pulses/

minute (sec. 5).

J. Sets user defi ned setup date for
maintenance records. This feature is not

an internal timer or calendar

Display:

1

To Change:

2

To Accept:

3

A) Solution cal.: place sensor and
thermometer into standard solution then
press right arrow key.

B) Resistor verification: press right
arrow key.

A) Solution cal.: allow approx. 3 minutes for
stabilization, then enter solution temperature*

B) Resistor verification: enter 25.0 C on
display.

Enter known solution conductivity or calculated
conductivity.

Optional: enter zero to reset factory calibration
(zero MUST be re-entered if currently displayed
to reset factory calibration).

Measured conductivity shown after
temperature calibration

Press to accept conductivity calibration;
display returns to CALIBRATE MENU in 3
seconds (sec. 6.2E)

Press to accept temperature
calibration.

ENTER

ENTER

quick

press

To exit WET CAL at any time without
saving changes:

Resistance = Cell ; e.g. 0.1 = 5,000Ω or 5 kΩ
Desired conductivity (Siemens*) 0.000020 (Siemens*)

*Conversion: 1 μS = 1 X 10

-6
Siemens or 0.000001 Siemens

Conductivity = Sensor cell ; e.g. 0.1 = 0.000001 Siemens*
Simulation resistance (Ohms) 100,000 or 1 μS/cm

6.3 WET CAL Procedure

Requirements

Electronic calibration is performed to exacting standards by OMEGA. System calibration will reduce errors which may be caused by
sensor wire lengths longer than the standard fi fteen feet length. Wire lengths of 100 feet are acceptable; cable shield must be maintained
through cable splice. Calibration may be done by known solution value (A), or by resistance simulation (B).

A) Calibration with NIST Traceable Solutions:

When using calibration standards traceable to the National Institute of Standards and Technology (NIST), care must be taken to ensure
the sensor and test solution are at the solution temperature specifi ed on the test solution label. Care must be taken to prevent con-
tamination of the calibration solution. It is recommended to thoroughly rinse the sensor in a small amount of test solution (then discard)
before placing in any test solution for calibration purposes. The two step WET CAL process fi rst allows for verifi cation or calibration of
temperature, followed by verifi cation or calibration of either conductivity, resistivity, or PPM (TDS) using a known process solution.

B) Optional Verifi cation with Precision Resistors:

The use of precision resistors (±0.1%) connected to the rear "Temp In", "Signal IN", and "Iso Gnd" terminals in place of the OMEGA
sensor, will yield quick and accurate electronic instrument calibration. The WET CAL procedure allows for verifi cation or calibration of
temperature, followed by conductivity, resistivity, or PPM (TDS) utilizing precision resistors. Calibration is completed as follows:

1) Select a standard cell constant based on desired range of operation (sec. 10, Fig. 1).

2) Place a 1096 TC resistor between "Temp IN" and "Iso. Gnd" terminals as shown. Note: Temperature

Simulation

resistor

simulation errors can adversely effect calibration: 3.85 ohms = 1°C error.

3) Calculate the required simulation resistor that represents a value within the selected cell range
(sec. 10, Fig. 1). The formula for determining the required simulation resistance is:

4) Place the calculated simulation resistance between the "Signal IN" and "Iso Gnd" terminals as shown.

5) Perfor WET CAL Procedure below, setting temperature to 25.0 °C and conductivity to the calculated value, step 3.

WET CAL Procedure (Solution Calibration Illustrated below)

Temp. IN

Signal IN

TC

resistor

CDCN-5800
Terminals

Shld

Iso. Gnd

+

4­mA

*IMPORTANT:
Always match test solution
manufacturer's temperature
recommendation.

Conductivity units are dis­played as selected in the
CALIBRATE menu (sec. 6.2B).

Resistivity units are displayed
when k or M ranges are
selected (sec. 6.2B).

Choose:

1

Change:

2

Save:

3

quick
press

To return to
VIEW:

quick

press

To restore original value:

Contrast Low -- -- -- -- -- High

Loop output

20 mA adjust

Temp. display

C or F

Conductivity Display decimal

Temp. comp %

Factory default: 2.00

Press keys in sequence

will appear during code entry.

to continue,

0s 4s 8s

Averaging

Loop output 4 mA adjust

Loop output Set 4 mA

Loop output Set 20 mA

ENTER

"SAVING"

briefly

displays

↓I

↑A

A.

B.

C.

D.

E.

F.

G.

H.

I.

6.4 OPTIONS Menu

Menu Settings A - I:

(Factory default displays shown in menu
column 1)

A. Selects LCD display contrast: 5 levels

B. Selects display decimal:

. to

*****

C . Selects LCD display averaging:
Off = 0 seconds, Low= 4 seconds, High=

8 seconds (also effects 4 - 20 mA output)

D. Sets 4 mA output setpoint. 4 mA and
20 mA setpoints are reversible.

E. Sets 20 mA output setpoint. 20 mA and
4 mA setpoints are reversible.

F. Sets 4 mA current output: 3.0 to 5.0 mA
(overrides 4.00 mA factory calibration)

G. Sets 20 mA current output: 19 to 21 mA
(overrides 20.00 mA factory calibration)

H. Selects temperature display: °C or °F
Recalibration is not required when switch-

ing

from Celsius to Fahrenheit.

I. Selects temperature compensation %
(coeffi cient), see section 8 for feature
explanation.

***.**

7. Parts Per Million (PPM) Factor

This feature is only applicable when PPM display units are se­lected (sec. 6.2B).

The 5800CR is capable of displaying total dissolved solids (TDS)
in parts per million (PPM) units. This is done by dividing the actual
solution conductivity in S by the programmed parts per million
factor (sec. 6.2C).

TDS (PPM) = Solution conductivity (S)
PPM Factor
Example:

• PPM Factor = 2.00 (factory default)

• Solution conductivity = 400 S

• TDS (PPM) = 400 S = 200 PPM on the display

2.00 PPM Factor

gasket

Rear C

4-s

RELAY 1

RELAY 2

RELAY 3

RELAY 4

N/C

N/O

COM

N/C

N/O

COM

N/C

N/O

COM

N/C

N/O

COM

RELAY 3,4

OPEN
COLL 3,4

- OPEN COLL 4

+

OPEN COLL 4

-

OPEN COLL 3

+

OPEN COLL 3

-

LOOP 2

+

LOOP 2

-

LOOP 3

+

LOOP 3

-

LOOP 1

+

LOOP 1

SHLD

ISO GND

TEMP 1

SGNL 1

SHLD

ISO GND

TEMP 2

SGNL 2

POWER

OUTPUT OPTION

®

L
N

-

+

ca

Liquid Tight
Connector

The programmable PPM Factor is adjustable from 0.01 to 9.99
(factory default = 2.00). You can determine the best PPM Factor
for your process solution if you know the solution's conductivity
(S) and the
percent of total dissolved solids (PPM), see example below:

PPM Factor = Solution conductivity (S)
Total dissolved solids (PPM)

8. Temperature Coeffi cient (Temp. Comp. %)

Conductivity measurement is highly dependent on temperature.
Temperature dependence is usually expressed as the relative
change per °C, commonly known as percent/°C change from 25
°C, or slope of the solution.

Slopes can very signifi cantly depending on process solution type.
The factory default temperature compensation factor is 2.00%/°C.
This setting satisfi es many general applications. Your process
solution may require adjustment for maximum accuracy. The fol­lowing procedure can be used to determine the optimum tempera­ture compensation factor for your process. This procedure can be
used when published references are not available.

NOTE:

Do not use this procedure for solutions from 0.055 S to 0.1

S (10 M to 18 M). An internal pure water curve is used for

these ranges. The factory default setting of 2.00%/°C should
be used.

Equipment Required

• CDCN-5800 monitor and CDCE-90-X series conductivity
sensor

• Process solution samples (2)

• Temperature source

Procedure

1. Disable the temperature comp % factor by entering 0.00

(sec. 6.4I).

2. Heat the sample solution close to the maximum process
temperature. Place sensor in the sample solution (allow
several minutes for stabilization). Access the VIEW menu (sec.

6.1A) and record the displayed temperature and conductivity
values in the spaces provided below:

Example:

• Solution conductivity = 400 S

• TDS = 200 PPM (mg/L)

• PPM Factor = 400 S = 2.00
200 PPM

3. Cool the sample solution close to the minimum process
temperature. Place sensor in the sample solution (allow
several minutes for stabilization). Record displayed
temperature and conductivity values in the spaces provided
below:

Sample Solution (Step 3)

Displayed temperature:

T2= °C

Displayed conductivity:

C2=

A 10% change in conductivity between steps 2 and 3 is required
for optimum performance. If necessary, increase maximum (step

2) and reduce minimum (step 3) sample temperatures. This will

result in a larger change in conductivity between steps.

4. Substitute recorded readings (steps 2 and 3) into the following
formula:

TC Slope = 100 x (C1 - C2)
(C2 x (T1 - 25)) - (C1 x (T2 - 25))

Example:
A sample solution has a conductivity of 205 S @ 48°C. After
cooling the solution, the conductivity was measured at 150 S @
23°C. Therefore: C1 = 205, T1 = 48, C2 = 150, T2 = 23.
The TC is calculated as follows:

Sample Solution (Step 2)

Displayed temperature:

T1= °C

Displayed conductivity:

C1=

9. Parts and Accessories

Splashproof rear cover
FPM-5000-SBCK

TC Slope =
100 x (205 - 150) = 5500 = 1.42%/°C
(150 x (48 - 25)) - (205 x (23 - 25)) 3860

5 x 5 inch adapter plate
for OMEGA retrofi t

Optional surface mount
bracket FP-5000-MB

FPM-5000-RAK

96 mm
(3.8 in.)

Front View

96 mm (3.8 in.)

Relay 2

Relay 1

ENTER

0

20

40

60

80

100

S/cm

10. Specifi cations

General

Compatible sensors: OMEGA CDCE-90-X Standard and Certifi ed
Series Sensors (Figure 1)
Accuracy: ±2% of reading
Input range: 0.055 to 400,000 S (10 k to 18 M),
optically isolated

Resistivity measurements from 10 MΩ to 18 MΩ (or

conductivity range 0.055 S to 0.1 S) must be performed in
solution temperatures from 20°C to 100°C.

Enclosure:

• NEMA 4X/IP65 front

• Dimensions: ¼ DIN, 96 x 96 x 88 mm (3.8 x 3.8 x 3.5 in.)

• Case materials: ABS plastic

• Keypad material: Sealed 4-key silicone rubber

• Weight: 500 g (18 oz.)

Ultra-

Pure

Pure

CDCE-90-01

CDCE-90-001

Sensor Models

0.055

(18 MΩ)

1

Figure 1

OMEGA Conductivity Sensor Ranges

Rinse

CDCE-90-1

10 200

(10 kΩ)

CDCE-90-20

CDCE-90-10

100

1,000

Conductivity Range (μS)

10,000

200,000

400,000

Display:

• Type: Microprocessor controlled air-core meter movement and
backlit alphanumeric 2 x 16 LCD

• Update rate: <2s

• Contrast: User selected

• Relay annunciators: 2 LEDs

• Displayed units: S, mS, k, M, PPM

Environmental

Operating temp.: -10 to 55°C (14 to 131°F), 50°C (122°F)
max. with optional rear cover
Storage temp.: -15 to 80°C (5 to 176°F)
Relative humidity: 0 to 95%, non-condensing
Altitude: 4000 m max.
Pollution degree: 2

Electrical

Power requirements:

• 12 to 24 VDC or 12 to 24 VAC, unregulated, 50-60 Hz,
10 W max.

Temperature input:

• PT1000, 0 to 100°C (32 to 212°F), optically isolated

Relay outputs (2 sets):

• Mechanical SPDT contacts

• Max. voltage rating: 5 A @ 30 VDC, 5 A @ 125 VAC, or
3 A @ 250 VAC, (power factor = 1.0)

• Hysteresis: User adjustable

Current output:

• 4 to 20 mA, non-isolated, internally powered, fully adjustable and
reversible

• Update rate: <2s

• Max loop impedance: 350  with a 12 V instrument supply
voltage, 950  with a 24 V instrument supply voltage

• Accuracy ±0.1% of max range

Agency Approvals

• CE

• Manufactured under ISO 9001 and ISO 14001

Dimensions:

Panel
Gasket

91 mm
(3.6 in.)

96 mm
(3.8 in.)

Optional Splashproof Rear Cover

Mounting Panel

Mounting Clamp (2 ea.)

88 mm
(3.5 in.)

Side View

76 mm (3 in.)

96 mm (3.8 in.)

88 mm (3.5 in.)

Menu

Parameters

Factory

Default

Range

Display

Description

• Process conductivity

• Process temperature

Current loop

output

Min → Max meter

dial range

• Relay 1 mode

• Relay 1 setpoint

• Relay 2 mode

• Relay 2 setpoint

Last calibration

date

• 0.055 - 400,000 mS
(10 kΩ - 18 MΩ)

• Process temperature

3 - 21 mA

0.055 - 400,000 mS
(10 kΩ - 18 MΩ )

Low, High, or Pulse,

0.055 - 400,000 mS

(10 kΩ - 18 MΩ)

Low, High, or Pulse,

0.055 - 400,000 mS

(10 kΩ - 18 MΩ)

00 - 00 - 00 -

39 - 39 - 99

n/a
n/a

n/a

0.0000 -

100.000 μS/cm

Low

10.0000 μS/cm

High

90.0000 μS/cm

01 - 01- 98

A.

B.

C.

D.

E.

F.

88 mm
(3.5 in.)

88 mm (3.5 in.)

Rear View

4-20

mA

-

+

NC

C

NO

NC

C

NO

-

+

Relay 1 Relay 2

12-24 V

10 W

Patent No. D 376,328

Patent No. 5,708,363

Conductivity

Signal IN

Red wire

Iso. Gnd

Black wire

Shld

Silver wire

Temp. IN

White wire

Model CDCN-5800

Dimensions:

11. Quick Reference Menu Parameters

11.1 VIEW Menu Setup Parameters (sec. 6.1)

Resistivity measurements
from 10 MΩ to 18 MΩ
(or conductivity from

0.055 S to 0.1 S)
must be performed in
solution temperatures
from 20°C to 100°C.

Menu

Parameters

Factory

Default

Range

Display

Description

Display
contrast

Display

decimal

Display

averaging

4 mA

setpoint

20 mA

setpoint

4 mA
adjust

20 mA

adjust

Temperature

display

Temperature comp.

percentage

0 - 5

*.**** -

*****

.

Off= 0 sec., Low= 4 sec.,

High= 8 sec.

00.0000 -

999999.

00.0000 -

999999.

3.0 - 5.0 mA

19 - 21 mA

Celsius or

Fahrenheit

0.00 % -

9.99 %

3

****.*

Low= 4 sec.

00.0000
μS/cm

100.000
μS/cm

4.00 mA

20.00 mA

°C

2.00 %

A.

B.

C.

D.

E.

F.

G.

H.

I.

Menu

Parameters

Factory

Default

Range

Display

Description

Sensor type:

and cell constant

Process

units

Total dissolved solids

(PPM) factor

Min → max

meter dial range

System Calibration

Procedure

• Relay 1 mode

• Relay 1 setpoint

Relay 1

hysteresis

• Relay 1 mode

• Relay 1 range

Relay 1

pulse rate

Last calibration

date

• Standard sensor cells:

0.01, 0.1, 1.0, 10.0, 20.0

• Custom sensor cells:

00.0000 - 999999.

mS, mS, PPM,

kΩ, or MΩ

0.01 -

9.99

0.055 - 400,000 mS
or 10 kΩ - 18 MΩ

Wet Solution or

resistor calibration

• Low or High

• 00.0000 -

999999.

• Low or High

00.0000 -

999999.

• Pulse

• 00.0000 -

999999.

000 - 300

pulses/minute

00 - 00 - 00 -

39 - 39 - 99

• Standard sensor

•Cell 1.0

μS

2.00

0.0000 -

100.000 μS

n/a

Low

10.0000 μS/cm

1.0000
μS/cm

10.0000 -

90.0000
μS/cm

120

pulses/minute

01 - 01 - 98

A.

B.

C.

D.

E.

F.

G.

H.

I.

J.

11.2 CALIBRATE Menu Setup Parameters (sec. 6.2)

PPM Factor shown
only with PPM units
selected above
(step B)

Relay mode and set­point displays repeat
for relay 2 setup

11.3 OPTIONS Menu Setup Parameters (sec. 6.4)

12. Troubleshooting

Display Problem Solution

1. 0.0 S/cm

- - - - - - °C
or

- - - - - - - S/cm

- - - - - - °C
or

0.0 M•cm

- - - - - °C
or

- - - - - - - M•cm

- - - - - °C

Temperature wiring shorted or
temperature element in sen­sor bad

A) Verify sensor wiring (sec. 2)
B) Verify instrument temperature input:

• Remove Black and White sensor wires from rear Temp.
IN and Iso. Gnd terminals, then place a 1100  resistor
across terminals.

• Power instrument and verify approximately 26.0 °C (79 °F)
on display. If instrument reads correctly, replace sensor. If
error condition persists, instrument requires factory service.

2. 0.0 S/cm

25.0 °C
or

- - - - - - - M•cm

25.0 °C

3. - - - - - - - S/cm

25.0 °C
or

0.0 M•cm

25.0 °C

A) Sensor not connected or
improperly connected
B) Pipe empty or sensor not
in solution
C) Wrong scale selected
D) Wrong range selected
(cell constant too small)
E) TC% set incorrectly for
process temperature
F) Sensor wiring open
G) Water too cold for
high-purity water
measurement

A) Sensor shorted or
improperly connected
B) Wrong scale selected
C) Wrong range selected
(cell constant too large)
D) TC% set incorrectly for
process temperature

A) Verify sensor wiring (sec. 2)
B) Fill pipe or place sensor in process solution.
C) Choose S or M scale instead of mS or k scale
(sec. 6.2B)
D) Choose a sensor with cell constant adequate for your
process solution (sec. 10, Figure 1)
E) Set TC% to zero (sec. 6.4I) and check reading. If reading
is ok, calculate proper TC% for your process solution (sec.

8), then re-enter correct value (sec. 6.4I).
F) Replace sensor
G) See specifi cations section 10 for recommended
high-purity range and temperature requirements.

A) Verify sensor wiring including cable splice (sec. 2); cable
shield must continue through splice.
B) Choose mS or k scale instead of S or M scale
(sec. 6.2B)
C) Choose a sensor with cell constant adequate for your
process solution, see section 10,
Figure 1.
D) Set TC% to zero (sec. 6.4I) and check reading. If reading
is ok, calculate proper TC% for your process solution (sec.

8), then re-enter correct value (sec. 6.4I).

4. Too Much Error
Check Sensor

5. Reset To Factory
Calibration

6. SETUP READ ERROR
Press any Key

Temperature input out
of tolerance during WET
CAL Procedure
(sec. 6.3)

Zero entered as solution
conductance or
resistance during WET CAL
step 2

Power fault occurred while
saving setup menu entry

Exit WET CAL Procedure by pressing UP and DOWN arrow
keys simultaneously, then refer to solution steps 1B above
to verify sensor temperature input.

Measured conductivity, Resistivity, PPM, or resistivity en­tered as zero during WET CAL step 2. Operator can enter
zero to quickly recall
factory defaults.

Press any key to reload factory defaults then reprogram
conductivity system setup parameters.

13. Maintenance

Clean the instrument case and front panel with a soft cloth and a mild liquid soap solution.

WARRANTY/DISCLAIMER

OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period
of 13 months from date of purchase. OMEGA’s WARRANTY adds an additional one (1) month grace period to
the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA’s
customers receive maximum coverage on each product.

If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s Customer Service
Department will issue an Authorized Return (AR) number immediately upon phone or written request.
Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no
charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser,
including but not limited to mishandling, improper interfacing, operation outside of design limits,
improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows evidence of
having been tampered with or shows evidence of having been damaged as a result of excessive corrosion;
or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating
conditions outside of OMEGA’s control. Components which wear are not warranted, including but not
limited to contact points, fuses, and triacs.

OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for
any damages that result from the use of its products in accordance with information provided
by OMEGA, either verbal or written. OMEGA warrants only that the parts manufactured by it
will be as specified and free of defects. OMEGA MAKES NO OTHER WARRANTIES OR
REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESS OR IMPLIED, EXCEPT THAT OF
TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. LIMITATION OF
LIABILITY: The remedies of purchaser set forth herein are exclusive, and the total liability of
OMEGA with respect to this order, whether based on contract, warranty, negligence,
indemnification, strict liability or otherwise, shall not exceed the purchase price of the
component upon which liability is based. In no event shall OMEGA be liable for
consequential, incidental or special damages.

CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a “Basic
Component” under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in medical
applications or used on humans. Should any Product(s) be used in or with any nuclear installation or activity,
medical application, used on humans, or misused in any way, OMEGA assumes no responsibility as set forth in
our basic WARRANTY / DISCLAIMER language, and, additionally, purchaser will indemnify OMEGA and hold
OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product(s) in such a
manner.

RETURN REQUESTS/INQUIRIES

Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department. BEFORE RE­TURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN AUTHORIZED RETURN (AR)
NUMBER FROM OMEGA’S CUSTOMER SERVICE DEPARTMENT (IN ORDER TO AVOID PROCESSING
DELAYS). The assigned AR number should then be marked on the outside of the return package and on any
correspondence.

The purchaser is responsible for shipping charges, freight, insurance and proper packaging to prevent break­age in transit.

FOR WARRANTY RETURNS, please have the
following information available BEFORE
contacting OMEGA:

1. Purchase Order number under which the product
was PURCHASED,

2. Model and serial number of the product under
warranty, and

3. Repair instructions and/or specifi c problems
relative to the product.

OMEGA’s policy is to make running changes, not model changes, whenever an improvement is possible. This affords our
customers the latest in technology and engineering.

OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
© Copyright 2000 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied, photocopied, reproduced,

translated, or reduced to any electronic medium or machine-readable form, in whole or in part, without the prior written consent of
OMEGA ENGINEERING, INC.

FOR NON-WARRANTY REPAIRS,
current repair charges. Have the following information
available BEFORE contacting OMEGA:

1. Purchase Order number to cover the COST of the
repair,

2. Model and serial number of the product, and

3. Repair instructions and/or specifi c problems
relative to the product.

consult OMEGA for

Where Do I Find Everything I Need for

Process Measurement and Control?

OMEGA…Of Course!

Shop online at www.omega.com

TEMPERATURE

; Th

ermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies

;

Wire: Thermocouple, RTD & Thermistor

;

Calibrators & Ice Point References

;

Recorders, Controllers & Process Monitors

;

Infrared Pyrometers

PRESSURE, STRAIN AND FORCE

;

Transducers & Strain Gages

;

Load Cells & Pressure Gages

;

Displacement Transducers

;

Instrumentation & Accessories

FLOW/LEVEL

;

Rotameters, Gas Mass Flowmeters & Flow Computers

;

Air Velocity Indicators

;

Turbine/Paddlewheel Systems

;

Totalizers & Batch Controllers

pH/CONDUCTIVITY

;

pH Electrodes, Testers & Accessories

;

Benchtop/Laboratory Meters

;

Controllers, Calibrators, Simulators & Pumps

;

Industrial pH & Conductivity Equipment

DATA ACQUISITION

;

Data Acquisition & Engineering Software

;

Communications-Based Acquisition Systems

;

Plug-in Cards for Apple, IBM & Compatibles

;

Datalogging Systems

;

Recorders, Printers & Plotters

HEATERS

;

Heating Cable

;

Cartridge & Strip Heaters

;

Immersion & Band Heaters

;

Flexible Heaters

;

Laboratory Heaters

ENVIRONMENTAL
MONITORING AND CONTROL

;

Metering & Control Instrumentation

;

Refractometers

;

Pumps & Tubing

;

Air, Soil & Water Monitors

;

Industrial Water & Wastewater Treatment

;

pH, Conductivity & Dissolved Oxygen Instruments

6-5800.090CR-OM (Rev. J 09/08) M2581/0908