Model: WBM-200 - Panel Type Conductivity Analyzer - Issue: WBM-200-0107-R0 Page 1

This conductivity monitor is suitable for use in a broad range ofapplications including ultra-pure water production, boiler systems andfood processing plants.

A wide range of features are integrated into the DIN sized case (96 x 96 x 200 mm).

The design and construction of the Model WBM-200 are based ondecades of continuous product development and field experienceenabling this instrument to offer superior accuracy, performance andcost of ownership benefits.

FEATURES

• Compact and lightweight design:• Dimensions: 96x96x200mm, panel cut-out: 92x92 mm (DIN size)• Superior accuracy:• Highly accurate temperature compensation is achieved by using a

precision resistor together with microprocessor calculations.Accuracy exceeds performance of analogue type instruments.

• Wide sample temperature range:• Suitable for sample temperatures from –5 to +120oC (See noe *1).• Suitable for high temperature applications:• Can be used for measurement during hot water sterilization

processes for ultra-pure water.• Dual sensor operation:• Water quality at two locations, ratio between two measurement

values and rejection rate can be displayed manually orautomatically at 5-second intervals.

• Temperature indication:• As well as conductivity, sample temperature can also be monitored

at each location• Cell constant adjustable:• The cell constant can be easily adjusted from front keypad, enabling

accurate measurement to be maintained.• Two control points can be set:• Control points corresponding to measurement value, ratio between

two measurement values, rejection rate can be set up to two points.Alarm is displayed on front panel with voltage free contract output.

• Isolated 4~20mA DC dual output signals:• Two isolated 4~20mA analog signals are available for connection

to any external device.• Simple and reliable connector type sensor is also available:• The sensor does not have any loose wire connection. It is joined to

the extension cable by a connector assembly. This eliminatespotential wire breakdown problems and allows much easiermounting and wiring.

• HC ApplicationsBy combining with the sensor model A6-113(S), concentration andlife of hydrofluoric acid solution can be controlled.

• Logarithmic OutputModel WBM-200E provides a logarithmic output which coversthree ranges.

STANDARD SPECIFICATIONS

Product Name : Conductivity analyzerModel : WBM-200Measurement range : By selecting a cell constant out of 4, one

of the following types can be selected.

PANEL TYPE CONDUCTIVITY ANALYZER Model: WBM-200

: a. 0~20µS/cm[Cell constant](3 ranges; 0~0.2/0~2/0~20µS/cm[0.01cm-1]

b. 0-200µS/cm(0~2/20/200µS/cm) [0.1cm-1]

c. 0~2000µSµS/cm(0~20/200/2000µS/cm) [1.0cm-1]

d. 0~20mS/cm(0~0.2/2/20mS/cm) [10.0cm-1]

Output Range : 0~25/50/100% of meas. rangeTemperature Range : -5oC~120oC*1 Resolution 0.1oCDisplay : Digital LCDTemp Compensation : -5~120oC*1Temp Sensor : Thermistor (located in sensor)Outputs : Isolated outputs, 4~20mA DC,

max. load 600Ω, Corresponding to 2circuits, ratio between two measuredvalues and rejection rate.

Control functions : Control outputs; 2Set range: 0 FSRatio between two measured valuesand rejection rate are applicable.Control output: Voltage free contactContact rating: 125V AC 3A

Alarm indication : Displayed on front panelNo. of sensor connections : 2Other functions : Over scale indication: Blinking LCD.

Transmitter check: By equivalentresistor unit.

Linearity : Within ±0.5%FS (Exclusive sensor)Repeatability : Within ±0.3%FSPower requirements : 100VAC±10%, 50/60Hz (other

voltages available as options)Ambient temperature : -5~50oCHumidity : 95% RH or lessCase Materials : Aluminum, plasticsMounting : Panel mountCable port : Plastic glands for ø6~ø10 cable (5 pcs.)Panel cutout : 92(w) x 92(h)mmDimensions : 96(w) x 96(h) x 200(d)mm*1: Depends on the sensor to be connected

ISO-14001ISO-9001 SPECIFICATION SHEET

Page 2 Model: WBM-200 - Panel Type Conductivity Analyzer - Issue: WBM-200-0107-R0

SYSTEM CONFIGURATION

DIMENSIONS

TERMINAL CONNECTIONSWIRING SCHEMATIC

Model: WBM-200 - Panel Type Conductivity Analyzer - Issue: WBM-200-0109-R0 Page 3

SENSOR DIMENSIONS

STANDARD SPECIFICATIONS

Product name : Conductivity sensor

Model : A, WS54/55 etc.

Cell constant : 0.01/0.1/1.0/10.0 cm-1

Temp sensor : Thermistor (sealed inside innerelectrode)

Sample temp : 0oC~100oC

Sample Pressure : MPa or less

Materials

Electrode : 316SUS

Bushing : 316SUS (TeflonTM coated)

Seal : VitonTM (Partly Teflon)

Piping connections : R3/4 screw-in type

Piping temp range : 0oC~100oC

Connection cable : O.D. 8mm, with waterproof connector

CONDUCTIVITY SENSOR Models: A, WS54/55

Page 4 Model: WBM-200 - Panel Type Conductivity Analyzer - Issue: WBM-200-0107-R0

International Operations:DKK-TOA Corporation29-10, 1-Chome, Takadanobaba, Shinjuku-ku, Tokyo 169-8648 JapanTel: +81-3-3202-0225 Fax: +81-3-3202-5685

Representative Office (Europe):DKK-TOA European RepresentativeSt. Johns Innovation Centre, Cowley Rd., Cambridge CB4 0WS UK.Tel : +44 (0)1223-526471 Fax : +44 (0)1223-709239

DKK-TOA CORPORATION

PRODUCT CODE

Do not operate products before consulting instruction manual.

http://www.toadkk.co.jp Information and specifications are for a typical system and are subject to change without notice.