Sensorex CX105 Manual de usuario

CX105 Conductivity/Resistivity Transmitter

User Manual

REV A.6

Sensorex Corporation, USA

11751 Markon Drive

Garden Grove, CA. 92841 U.S.A.

www.sensorex.com

IMPORTANT SAFETY INFORMATION

Please read and observe the following:

Remove line power before wiring transmitter connections

Wiring or repairs should only be performed by qualified personnel and only to an

unpowered transmitter

Whenever it appears that transmitter safety is questionable, disable the Transmitter to

ensure against any unintended operation. For example, an unsafe condition is likely

when:

1）The transmitter appears visibly damaged

2）The transmitter fails to operate properly or provide the intended measurements

3）The transmitter has been stored for long periods at temperatures above 176F (80C)

The transmitter must be installed by qualified personnel in accordance with relevant

codes and instructions contained in this user manual. Observe the Transmitter’s

specifications and relative parameter’s ratings.

TableofContents

1 Introduction ................................................................................................................... 4

2 Dimension Drawings ...................................................................................................... 4

2.1 Front and Side View ........................................................................................... 4

2.2 Installation ......................................................................................................... 4

2.2.1 Panel Installation Instructions ........................................................................ 4

2.2.1.1 Panel Cut-out.................................................................................................. 5

2.2.2 Field Mount Installation.................................................................................. 6

3 Specifications ................................................................................................................. 7

4 Electrical Connections.................................................................................................... 8

4.1 System Power & Loop Connections .................................................................... 8

4.2 Electrode Input Connections .............................................................................. 9

4.3 OC Output .......................................................................................................... 9

4.3.1 Open Collector Output Connections............................................................... 9

4.3.2 Open Collector Output Operation .................................................................10

5 Menu ............................................................................................................................10

5.1 View Menu ........................................................................................................11

5.2 Editable Menu ...................................................................................................11

5.2.1 Editing Procedure ..........................................................................................11

5.2.2 Main Menu....................................................................................................11

5.2.3 Calibration Menu...........................................................................................12

5.2.4 Output Menu.................................................................................................12

5.2.4.1 Set 4~20mA Details .......................................................................................13

5.2.4.2 OC Output Details..........................................................................................13

5.2.5 Option Menu .................................................................................................14

6 Calibration ....................................................................................................................15

6.1 Wet Calibration (1 Point Sample Method) .........................................................15

6.2 Dry Calibration (Simulates the Conductivity and Temperature) .........................15

6.2.1 Temperature Simulation ................................................................................15

6.2.2 Conductivity Simulation.................................................................................16

6.3 Parts per Million (PPM) Factor...........................................................................16

7 Troubleshooting ............................................................................................................16

8 Ordering information ....................................................................................................17

1Introduction

The CX105 conductivity/resistivity transmitter is a 2-wire

transmitter designed for process conductivity/resistivity

monitoring, measurement and control applications. This user’s

manual contains the information needed to install, set up,

operate and maintain the transmitter.

2Dimension Drawings

2.1 Front and Side View

Front view Side view

Panel Mount & Field Mount

2.2 Installation

The CX105 conductivity/resistivity transmitters are supplied with hardware to install as panel

mount or field(wall) mount.

2.2.1 Panel Installation Instructions

1) The panel mount version is designed for installation using a 1/4 DIN Punch (92mm(3.6in) x

(92mm(3.6in).

2) Recommended clearance on all sides between instruments is 1 inch.

3) Slide the gasket over the back of the instrument.

4) Place the instrument into the panel cut-out.

5) Attach the mounting bracket to the back of the instrument by pulling apart the quick clips

and sliding it over the back of the instrument. Make sure that the quick clips are securely

attached to the latches.

6) Inspect the instrument to make sure that the instrument and the gasket are secured to the

panel appropriately.

7) To disassemble, press the clips of the mounting bracket against the panel and pull the

instrument away from the front.

Panel mount installation detail schematic

2.2.1.1 Panel Cut-out

92mm

(3.6in.)

92mm

(3.6in.)

2.2.2 Field(Wall) Mount Installation

The field(Wall) mount version requires a wall mounting kit, which includes a plastic wall

mounting rear cover with gasket and 4 screws. This is included with your CX105 transmitter..

This makes it possible to install the transmitter on a variety of surfaces.

1) Place the gasket on the instrument.

2) Thread electrical cables through the connectors on the wall mounting rear cover.

3) Connect the power, sensor and OC output wires.

4) Secure the wall mounting rear cover to the front enclosure with screws.

5) Fix the wall mounting rear cover to the surface by using screws or cables.

Field(wall) mount installation

Front

enclosure

Gasket

3Specifications

Display:

LCD: 128*65 dot matrix, figure or alphabet: 12x8, 28x15, 32x18, etc.

Update rate: 1 second

Contrast: User selected, 5 levels

Measurement:

Conductivity: 0.05 to500,000 μS/cm

Resistivity: 1KΩ•cm to18.3MΩ•cm

TDS: 0.023 to 200,000 ppm

Accuracy: ± 0.5% ofreading

Repeatability*: ± 0.05% of span

Temperature : -10 to 70℃

*These performance specifications are typical at 25°C

Electrical:

Power: 19 -48VDC, regulated, 30mA maximum

Current Output:

Isolated 4-20 mA output with 0.004 mA (12-bit) resolution

Update Rate: 1 second

Maximum Loop Impedance: 250Ω@24V; 600Ω@31V; 1500Ω@48V

Memory:

Non-volatile: All user settings are retained indefinitely without battery backup

Open-Collector Output:

Isolated, 40 VDC max. pull-up voltage

The OC output can be configured to be one of three modes below:

High mode, Low mode, Proportional pulses

Ambient Conditions:

Operation: -10 °C to 70 °C (14 °F to 158 °F); 0-95% relative humidity, non-condensing

Transport/storage: -15°C to 80°C(5°F to 176°F); 0-95% relative humidity, non-condensing

Standards and Approvals

CE: Certified Compliant to European Community Standards.

4Electrical Connections

4.1 System Power & Loop Connections

Standalone application, loop current isn’t used

Power Supply Transmitter Terminals

24VDC+ + 2 V+/Loop+

24VDC- - 1 V-/Loop-

Connection to a PLC with built-in power supply

PLC Terminals Transmitter Terminals

24VDC+ + 2 V+/Loop+

24VDC- -

4-20mA Loop Input - 1 V-/Loop-

4-20mA Loop Input +

Connection to a PLC with separate power supply

Option A

Power Supply Transmitter Terminals

24VDC+ + 2 V+/Loop+

24VDC- - 1 V-/Loop-

PLC

4-20mA Loop Input -

4-20mA Loop Input +

Option B

PLCTransmitter Terminals

4-20mA Loop Input - 2 V+/Loop+

4-20mA Loop Input + 1 V-/Loop-

Power Supply

24VDC+ +

24VDC- -

4.2 Electrode Input Connections

CAUTION:

• As electrical noise may interfere with electrode signal, please do not route the electrode cable in a

conduit containing AC power wiring.

Electrode Input Transmitter Terminals

Drive Red 8 Drive

Ground Black 7 Ground

Temp Green 6 Temp

Temp White 5 Shield

4.3 OC Output

4.3.1 Open Collector Output Connections

Connection to a PLC with built-in power supply

PLC

Power Supply+ +

Power Supply- - Transmitter Terminals

OC input+ + 4 O.C.+

OC input- - 3 O.C.-

Connection to a PLC, separate supply

Power Supply

24VDC+ +

24VDC- -

PLC Transmitter Terminals

OC input+ + 4 O.C.+

OC input- - 3 O.C.-

100K

Electrode Input

Drive black

Ground white

Tempm

p green

Tempmp red

wire colors in table to left

apply for all

sensors except CS8000TC

and CS615TC, CS620TC.

Wiring For CS615TC,

CS615TC

S855 cable used with

CS8000TC

Transmitter Terminals

8 Drive

7 Ground

6 Temp

5 Shield

Drive

Ground

Coax braid

mmp

green

Temmp

p red

Transmitter Terminals

8 Drive

7 Ground

6 Temp

5 Shield

coax center

4.3.2 Open Collector Output Operation

The open collector output can be used as a switch

or a warning that responds when the process value

moves above or below a set point, or it can be used

to generate a pulsing signal with a rate proportional

to the process value. The output can be disabled if

not used (select “OFF” in the OC OUTPUT menu).

The “parameter” mentioned below can be either

conductivity or temperature.

Low Mode:

In this mode, the OC output is only active when

the parameter is lower than a user set point. The

output will be inactive when the parameter value is

greater than the set point plus the hysteresis

value.

High Mode:

In this mode, the OC output is only active when

the parameter value is higher than a user set point.

The output will be inactive when the parameter

value is smaller than the set point minus the

hysteresis value.

Proportional Pulsing

In this mode, the OC output will generate a pulse sequence

at the rate defined by the setting in the OC OUTPUT menu.

In the following example, the starting point is 10μS/cm, the end point is 110μS/cm, and the maximum

frequency is 200 pulses/min:

•The output will be 0 pulses/min when the conductivity value is less than 10μS/cm.

• The output will be 100 pulses/min when the conductivity value is 60μS/cm.

• The output will be 200 pulses/min when the conductivity value is greater than 110μS/cm.

5Menu

The menu consists of a view menu and an editable menu. The menu has several levels, with the

view menu being at the topmost level. You can loop within the same level menu items by

pressing the UP or DOWN arrow keys, move to a lower level menu by pressing the ENTER key,

and move to an upper level menu by pressing the ESC key. At any time, the system will return to

the view menu (default display) if no key is pressed for 10 minutes.

During normal operation, the view menu is displayed. Use the UP or DOWN arrow keys to select

the information you want displayed. The items will scroll in a continuous loop. System operations

will not be interrupted during menu interaction.

OC Low Setpoint

Hysteresis

Time

Value

N.O.

:OC Output Active

:OC Output Inactive

OC OC

High Setpoint

Hysteresis

Time

Value

N.O.

:OC Output Active

:OC Output Inactive

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