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2.0 Overview

The CLX-Ex Online Chlorine Monitor allows for the reading of chlorine 

levels of process water on-line. The CLX-Ex has been designed 

to meet the design criteria specified by Standard Methods for the 

Examination of Water and Wastewater (21th Edition) Method 4500-Cl 

G. DPD Colorimetric Method. The CLX-Ex uses a 515nm LED as the 

measurement light source.
This instrument has been designed to operate in explosive 

atmospheres and meets the IECEx rating as stated in the 

specifications. The instrument uses an approved purge/pressurization 

controller called the Air Sentinel. Please refer to the companion manual 

Cat. No. 28749 for all information on:

•  Operation of the Air Sentinel
•  Electrical power connections
•  Purge Air Connection

*Viton

®

 is a trademark of The Chemours Company FC, LLC

Noryl

®

 is a registered trademark of SABIC Global Technologies B.V.

2.1 Specifications

Measurement Range

0.00 – 10.00 mg/L (PPM)

Accuracy

±5% of reading or ±0.03 mg/L (PPM) whichever is greater for range of 0-6.0 mg/L(PPM) ±10% of reading from 6.01-10.00 mg/L (PPM)

Resolution

0.01 mg/L (PPM) 

Cycle Time

Adjustable; 60 seconds to 10 minutes (600 seconds)

Display

Multi-Line Liquid Crystal Backlit Display

Alarms

One NO relay contact 120-240VAC 2A

Analog Output

Powered 4-20 mA, 600 Ω drive, isolated

Communications Port

Bi-directional RS-485 with Modbus 

Water Pressure

Integral pressure regulator 0.34 bar (5.0 PSI) to 10.3 bar (150 PSI.)

Flow Rate to Waste

200 – 400 ml/min. 

Operating Temperature

0°C – 55°C (32°F – 131°F)

Wetted Materials

PVC, Borosilicate Glass, Reslyn (FFKM), Viton

®

 (FKM), Polypropylene, 316 Stainless Steel, Acetal, Noryl

®

, Silicone

Sample Temperature Range

0°C – 55°C (32°F – 131°F)

Power Supply

100 to 240VAC, 47-63 Hz, 250VA

Insulation Rating

Double Insulated, Pollution Degree 2, Overvoltage Category II 

Environmental Conditions

Altitude up to 2000 meters 
Up to 95% RH (non-condensing) 

IECEx Hazloc Rating

Ex pxb IIC T4 Gb 0°C ≤ Ta ≤ 55°C

Compressed Air

Water and oil free, -40°F (-40°C) Dew Point, Particles <5u, ISA Grade Hydrocarbon Free. Full time clean dry air at 5.5 - 7 bar  
(80-101.5 PSI) @35 SLPM (1.2 SCFM) @ 20°C (68°F) Max

Regulatory Compliance and Certifications

ETL listed to UL 61010-1 Issued May 11 2012 3rd Ed and ETL certified to CSA 22.2 No. 61010.1 issued May 11 2012
EN61326:2006

Shipping Weight

27.2 kg (60 lbs.) Reagents are Shipped Separately

Shipping Dimensions

93 cm X 62 cm X 32 cm (36½" X 24½" X 12½")

In addition this instrument has vortex cooling. This instrument will 

automatically control a connected compressed air line to lower the 

temperature of one of the reagents, allowing the reagent an operating 

life of up to 3 months.
Every effort has been made to ensure the accuracy of this manual. Due 

to the continuous development and improvement of all instrumentation, 

there may be slight differences between this manual and the instrument 

received. Therefore, no legal claims can be made against any 

discrepancies herein.

Содержание scientific CLX-Ex A28031

Страница 1: ...ended Reagent Life Model CLX Ex A28031 IOM HF CLX Ex 29146 WARNING Read this Manual BEFORE using this equipment Failure to read and follow all safety and use information can result in death serious personal injury property damage or damage to the equipment Keep this Manual for future reference IOM HF CLX Ex 29146 Rev 4 ...

Страница 2: ... Procedure 12 7 2 Zero offset Calibration Procedure 12 7 3 Restore Factory Settings 12 8 0 Instrument Configuration CONFIG mode 13 8 1 Setting the 4 20 mA 13 8 2 Configuring the Error Level 13 8 3 Configuring the RS 485 Port 13 8 4 Configuring the Alarm 14 8 4 1 Alarm1 14 8 5 Enabling the Security Access 14 8 6 Extended Settings 14 8 7 Units of Measurement 14 8 8 Averaging and Filtering 14 8 9 LCD...

Страница 3: ...sphere where the instrument is located is safe from gases vapors dust or other flammable conditions whenever the instrument is opened for service or maintenance At all other times the door must be kept closed with purge air connected the purge system operating with the all GREEN lamps lit indicating safe operation WARNING If power is retained to the CLX Ex after opening the enclosure door while NO...

Страница 4: ...re Integral pressure regulator 0 34 bar 5 0 PSI to 10 3 bar 150 PSI Flow Rate to Waste 200 400 ml min Operating Temperature 0 C 55 C 32 F 131 F Wetted Materials PVC Borosilicate Glass Reslyn FFKM Viton FKM Polypropylene 316 Stainless Steel Acetal Noryl Silicone Sample Temperature Range 0 C 55 C 32 F 131 F Power Supply 100 to 240VAC 47 63 Hz 250VA Insulation Rating Double Insulated Pollution Degree...

Страница 5: ...on enters the option or mode that is highlighted or chosen The and buttons are used to change settings The PRIME and SERVICE buttons are dedicated controls The PRIME will start 75 reagent pump pulses to prime the tubing after a change or addition of reagent bottles The SERVICE button will drain the instrument and hold all operations until either the SERVICE button is pushed again or the power is r...

Страница 6: ...ent operation air needs to passes through fitting on the base of the main enclosure and constantly purge any vapors that could build up All GREEN lamps indicate a safe operating condition Only when this condition is reached will power be applied to the measurement portion of the instrument Start up At start up with the enclosure door open the Purge Control will display a RED PRESSURE lamp on the v...

Страница 7: ... by the Purge Air Sentinel controller to the cooling chamber temperature controller Clean dry compressed air must also be provided at pressures between 5 5 and 7 bar 80 to 101 5 PSI The cooling chamber temperature controller governs the solenoid which controls air flow to the vortex cooling unit The air flow is turned on or off as required to maintain the indicating reagent temperature at 20 25 C ...

Страница 8: ...allation of electrical connections to and between the instrument and other peripheral devices All terminals are designed to accept wires in the range of 14 28 AWG All wires should be stripped to a length of 6 mm For line power connections refer to the companion manual Catalog No 28749 4 4 1 RS 485 The RS 485 half duplex 2 wire digital interface operates with differential levels that are not suscep...

Страница 9: ...tion of the main enclosure with clean dry air Should this air supply pressure fail the PRESSURE lamp on the Air Sentinel unit will turn RED and power to the rest of the instrument is disconnected 5 1 Start Up When power is applied to the CLX Ex for the first time ensure that the air supply is connected as stated in section 4 3 and the cabinet is closed and locked Once power is applied the Air Sent...

Страница 10: ... of process water on line The chlorine value of the process water is usually reported in milligrams per Liter mg L these units are equivalent to Parts Per Million PPM Readings above 10 00 mg L are outside the range of this instrument Although the CLX Ex may display above 10 0 mg L these readings will not be within the stated accuracy As the reagents degrade due to aging readings above 10 0 mg L ma...

Страница 11: ... changed Use the or arrows to select the first of the three numbers in the code and then press the button to accept the first number of the code Now enter the second number in the code Proceed as with the first number followed by Then repeat the process for the third number in the access code and finish with the button If the valid access code has been selected the instrument will be directed to t...

Страница 12: ...he size of the change that can be made to a current reading The upper limit is the current reading times 1 5 The lower limit is the current reading divided by 1 5 Ensure a reading is posted to the display before calibrating to avoid a nOnE error 7 2 Zero offset Calibration Procedure Generally this calibration is only required if readings are expected to be below 1 mg L or if it is required by a re...

Страница 13: ...The first prompt will be the chlorine limit assigned to the 4 mA output level Select the chlorine level to assign to the 4MA using the and buttons Once the desired level has been set press the and button to accept it NOTICE To exit the CONFIG mode press the MODE EXIT button any changes that were made will be saved NOTICE The 4MA can be set higher than 20MA level to invert the output current if req...

Страница 14: ...iter or PPM parts per million The factory setting is mg L Select the desired UNIT using the and buttons and press the button to accept it 8 8 Averaging and Filtering The CLX Ex can display and output averaged readings to help smooth out the response and eliminate large reading variation in rapidly changing processes There are 5 settings for the averaging feature 1 No averaging each reading is in r...

Страница 15: ...ss the button Allowable setting is from 60 to 600 seconds 10 minutes NOTICE This feature is generally not used in ballast water applications and should be set to OFF The instrument requires 110 seconds to complete its normal operations when the WCON is turned On at the factory cycle time the instrument sits idle for about 40 seconds This results in about a 25 water savings The actual amount of wat...

Страница 16: ... modes Included are a simple communication mode and Modbus communications Both modes will automatically configure and do not require any changes or selections 9 1 1 Simple Communication The CLX Ex can provide basic communications over simple programs such as the Hilgraeve HyperTerminal that is included with most Microsoft Windows packages The user could also use Visual Basic or other programs The ...

Страница 17: ...e unit must be returned to the factory for service see section 10 6 These failures consist of failures in the CPU A D EEPROM or other devices internal to the instrument The queued display will show FAIL the upper display will show a four or five digit fault code If this fault occurs it will affect the 4 20mA and any alarm set for fault detection Error The instrument will not operate with this faul...

Страница 18: ...er Cap Assembly 1 Spare Indicator Cap Assembly 8 Pump Tubes 1 Spare Cuvette Two replacement sets of reagent cap tubing assemblies are supplied with the CLX Ex one for the buffer and one for the indicator Additional kits can be ordered from your local HF scientific distributor or representative It is recommended to keep one kit on hand at all times Generally both pump tubes should be replaced annua...

Страница 19: ...the knurled top clockwise until the cuvette is held securely 5 Check the drawing on the following page to ensure correct installation 6 Return to operation as described T Strainer Cleaning The T strainer is integral to the instrument and must be checked occasionally When necessary it must be removed and cleaned The strainer screen may require replacement after a period of time Steps 1 Press SERVIC...

Страница 20: ...nds 11 4 Check Valve Flushing Kit Sometimes upon initial commissioning the check valves stick and require manual priming This should not be needed after commissioning Be careful when using this kit to use only chlorine free water Complete instructions are included in the kit Figure 6 Check Valve Flushing 11 5 Instrument Storage If the CLX Ex is relocated or will be inactive for long periods of tim...

Страница 21: ...ies and replacement parts Accessory Catalog Number Photo Reagent Kit Total Chlorine 12 month supply 09991 Purge Manual CLX Ex Air Sentinel 28749 N A Operating Manual CLX Ex 29146 N A Tubing Cuvette Kit 09950EX Replacement Cuvette 25018S Check Valve Kit 25017S Ferrite for 4 20mA or RS 485 24560 ...

Страница 22: ...ies and replacement parts To order any accessory or replacement part please contact the HF scientific Customer Service Department If for any reason technical assistance is needed regarding this instrument please do not hesitate to contact the HF scientific Technical Services Department HF scientific 16260 Airport Park Drive Suite 140 Fort Myers FL 33913 Phone 239 337 2116 Toll Free 888 203 7248 Fa...

Страница 23: ..._ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ...

Страница 24: ...for breach of warranty and the Company shall not be responsible for any incidental special or consequential damages including without limitation lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly other costs resulting from labor charges delays vandalism negligence fouling caused by foreign material damage from adverse water con...

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