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CLX-XT (28652)

Page 29

REV 5 (5/2020)

9.4 Reagent Clogs

If reagents fail to flow or Prime it may be due to a clog in either the tubing or at a check

valve. To alleviate this you may have to flush the system with Chlorine Free water,

preferably Deionized water. See

section10.3

Check Valve Flushing Kit

9.5 Diagnostic Chart

Symptom

Cause

Cure

Lower display shows

4-20 mA loop open

Check wiring. See sections

4.3.4 and 7.2

Lower display shows

FAIL

Major system fault

Refer to section 9.1

Readings are erratic

(1)

Bubbles in solution

(2)

Debris in flow

(1)

Install bubble elimination

chamber.

(2)

Clean T-strainer

Readings are lower than expected

(1)

Condensate or leaky

measurement cuvette

(2)

Measurement cuvette

dirty

(3)

Reagents bad or expired

(4)

Buffer reagent not being

dispensed

(1)

Install desiccant cartridge

kit

(2)

Replace or clean cuvette

(3)

Replace reagents

(4)

Check buffer lines and

check valves.

Upper display flashes

Sample Over-Range

Check sample. Sample may be

too high to read.

Upper display shows nOnE while

attempting to calibrate

No current reading displayed Wait for CLX-XT to post a

reading

9.6 Technical and Customer Assistance

If for any reason assistance is needed regarding this instrument please do not hesitate to

contact either the HF scientific Technical Service Department or the HF scientific

Customer Service Department:

HF scientific

16260 Airport Park Drive, Suite 140

Fort Myers, Florida 33913

Phone: (239) 337-2116

Toll Free (888) 203-7248

Fax: (239) 454-0694

Email: [email protected]

www.hfscientific.com

Содержание HF scientific 28030

Страница 1: ...S MANUAL CLX XT TRO Chlorine Monitor Catalog No 28030 HF scientific 16260 Airport Park Drive Suite 140 Ft Myers FL 33913 Phone 239 337 2116 Toll Free 888 203 7248 Fax 239 454 0694 Email hf info wattswater com Website www hfscientific com ...

Страница 2: ......

Страница 3: ...rtek Tested to IMO MEPC 174 58 Part 3 Reference Imanna Report 18953 1 Manufacturer s Name HF scientific inc Manufacturer s Address 16260 Airport Park Drive Suite 140 Fort Myers FL 33913 Importer s Name Importer s Address Catalog Number 28030 Type of Equipment Chlorine Process Monitor Model No CLX XT I the undersigned hereby declare that the equipment specified above conforms to the above Directive...

Страница 4: ...Electrical Connections 9 4 3 1 Instrument Power 10 4 3 2 Cooling Chamber Power 11 4 3 3 RS 485 11 4 3 4 Relays 11 4 3 5 Remote Standby Connections 12 4 3 6 4 20 mA 12 4 3 7 RS 485 4 20 mA Cable Ferrite 12 4 4 Installing Reagents 13 5 0 Operation 14 5 1 Routine Measurement No Control Options 14 5 2 Routine Measurement Modbus Control 14 5 3 Routine Measurement Remote Standby Control 15 5 4 Operating...

Страница 5: ...justment 24 8 0 Additional Features and Options 25 8 1 RS 485 Output 25 8 1 1 Simple Communication 25 8 1 2 Modbus Communication 25 8 2 Remote Panel Meter 25 8 3 Desiccant Cartridge 25 8 4 Standby Reagent Purge 26 8 5 Reset Reading to Zero 26 8 6 AutoPurge 26 9 0 Troubleshooting 27 9 1 CLX XT Fault Detection 27 9 2 Setting Flow Rate 28 9 3 Clearing Faults 28 9 4 Reagent Clogs 29 9 5 Diagnostic Cha...

Страница 6: ......

Страница 7: ...r 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 PPS Sample Temperature Range 0 C 55 C 32 F 131 F Power Supply 100 240 VAC 47 63 Hz 250VA 100 240 VAC 10 for serial numbers 201705625 or greater Insulation Rating Doubl...

Страница 8: ...hamber allows for extended reagent life 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 1 1 Unpacking and Inspection of the Instrument and Acces...

Страница 9: ...Display used in the instrument 1 3 The Touch Pad Figure 2 illustrates the touch pad The touch pad has six buttons PRIME SERVICE MODE EXIT and The MODE EXIT button is used to cycle between the three operational modes of the instrument CAL CONFIG and AUTO Measurement mode The button enters the option or mode that is highlighted or chosen The and buttons are used to change settings The PRIME and SERV...

Страница 10: ...ment The safety protection provided by this equipment may be impaired if it is commissioned and or used in a manner not described in this manual Consequently all responsible personnel must read this manual prior to working with this instrument In certain instances Notes or helpful hints have been highlighted to give further clarification to the instructions Refer to the Table of Contents to easily...

Страница 11: ...CLX XT 28652 Page 5 REV 5 5 2020 2 1 Symbols Used In This Manual ...

Страница 12: ...on in the case of a warning or failure Most warnings and failures are also displayed on the screen To prevent interference the white LED is turned off during measurements During normal operation the CLX XT will run through a timed cycle A simplified cycle will consist of the following sequences Flushing continuous sample flow Purging PURGE valve opens Zeroing no flow with cuvette full Adding Reage...

Страница 13: ... never be blocked 3 3 The Reagents The indicator reagent reacts with any oxidant generally chlorine to create a pink color which the instrument measures and compares with a sample of water without reagents The buffer reagent is required to control the sample pH to bring the sample to neutral The reagents are provided already hydrated and require little operator preparation The indicator reagents a...

Страница 14: ...bing connections The overall mounting dimensions of the instrument are shown in Figure 3 Figure 3 Overall Mounting Dimensions of the Instrument It is critical that the instrument be mounted as close as possible to the sampling point to ensure a quick response time within 2 3 meters 6 10 ft of the sampling point Suggested mounting screws are up to M6 16 30 414 14 18 17 461 52 12 00 304 80 17 17 436...

Страница 15: ...st tanks 4 3 Electrical Connections Most of the electrical connections to the instrument are made at the termination area which is located on the left side of the instrument Remove the high voltage cover by loosening the captive screw The connections are labeled and are self descriptive see photo below Please follow all local and government recommendations for installation of electrical connection...

Страница 16: ...r flexible conduit connections can be used The CLX XT is not supplied with a power cord If the CLX XT is to be used in the U S or Canada the power cord must be UL Listed CSA Certified Please consult all local electrical codes for proper connection All wiring to the instrument must be rated for 70 C or higher The connection block is marked N for Neutral and L for line the third symbol indicates a s...

Страница 17: ...er 4 3 3 4 3 3 RS 485 The RS 485 half duplex 2 wire digital interface operates with differential levels that are not susceptible to electrical interferences This is why cable lengths up to 3000 ft can be implemented The last device on each bus may require terminating with a 120 ohm resistor to eliminate signal reflection on the line Do not run RS 485 cables in the same conduit as power Set up of t...

Страница 18: ...of this output is covered in section 7 1 Setting the 4 20 mA To prevent damage to the instrument and for general safety ensure that power is disconnected to the CLX XT prior to making any connections Polarities of the connections are labeled beside this termination on the PC board The recommended cable is 22 AWG shielded twisted pair To prevent ground loops connect the shield at either the CLX XT ...

Страница 19: ...ing and Installing the Reagents The reagent life was made under assumption that the CLX XT would be used for ballast water monitoring and the system will operate only while the vessel is ballasting and discharging ballast water The Buffer is ready to use and is provided in a 500 ml bottle The indicator requires some preparation and is supplied in four 125 ml bottles Each indicator reagent will las...

Страница 20: ...ning 2 When a continuous process stream is flowing through the instrument the instrument will display the measured chlorine level of the sample by displaying it on the LCD screen In addition the equivalent signal is provided on the analog 4 20 mA output or the digital RS 485 output depending on the options selected 5 2 Routine Measurement Modbus Control Option Cat 25316 Most versions of CLX XT sof...

Страница 21: ...er up 2 When the system has completed the WCAL the RSO contacts will open indicating that it is in standby mode and is ready to take a measurement 3 Application of 24VDC to the RSI connections will initiate a read cycle The RSO contact will close to indicate the system is busy 4 At the completion of the cycle the RSO contacts will open the measured chlorine level of the sample will be displayed on...

Страница 22: ...umbers 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 the calibration mode If the wrong access code is selected the ...

Страница 23: ...ain Calibration Procedure It is important that the chlorine level be quite stable to use this method The comparison will be made against a trusted measurement such as a chlorine photometer spectrophotometer or an amperometric titration 1 Obtain a grab sample of the flow prior entering the instrument 2 Measure the value of the sample with one of the methods shown above 3 On the CLX XT press the MOD...

Страница 24: ... show the current reading on the CLX XT Since there is no chlorine the only reading may be a slight offset due to the absorbance of the reagents There should be no pink color developed 5 Press to perform a Zero calibration When the calibration has completed the instrument will return to AUTO measurement mode automatically There is a limit of 0 20 mg L total adjustment available A ZERO Cal greater ...

Страница 25: ...nd buttons Once the desired output has been set press the button to accept it The next prompts will depend on the output selected Also see sections 7 13 7 14 If the 4 20 mA output was turned On prompts to set the 4mA 4MA and 20mA 20MA chlorine limits will be displayed There will also be a menu to adjust the error level ERLV The first prompt will be the chlorine limit assigned to the 4 mA output le...

Страница 26: ...he alarm set point level at which the alarm activates These items are described below Alarm Function The alarms can either be turned OFF or selected to operate in one of three different manners 1 HI alarm the relay changes state when the measured chlorine level is higher than the programmed alarm level set point 2 LO alarm the relay changes state when the measured chlorine level is lower than the ...

Страница 27: ... not an issue There is no need for alarm delays or hysteresis 7 5 Enabling the Security Access The instrument is equipped with a security access If this option is turned on the user is required to input the access code into the instrument to get to any mode other than AUTO The only code is 333 This code may not be changed See section 5 2 for more information on this security feature The security k...

Страница 28: ...e button to accept it In addition to averaging the CLX XT has a software filter that limits the change between consecutive readings to 20 For example the reading following a reading of 1 00 ppm could not be displayed as higher than 1 20 ppm or lower than 0 80 ppm This filter also helps smooth out large changes and eliminate reading spikes After 3 consecutive readings it is assumed that the large c...

Страница 29: ...d cooling chamber the life is 90 days 7 12 Water Conservation if available To conserve water the flush time can be adjusted use as little water as possible 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 ab...

Страница 30: ...e slightly different on each instrument as each CLX XT will be factory set to 4 00mA Press the button when adjustments are complete to save this setting and move on to the 20mA adjustment 7 14 20mA Adjustment This menu operates similar to the previous menu This menu outputs a constant 20 mA while allowing for a small amount of adjustment The adjustment can be made using the and buttons The adjustm...

Страница 31: ...CR LF or 0D 0A in hex The CLX XT will respond with The CLX XT will respond with The same attention character in ASCII or 3A Hex The address of the CLX XT The Reading The Unit mg L A sample communication would look like this Master computer requesting a report from address 1 1 CRLF CLXB set to address 1 Response 001 0 0249mg L 8 1 2 Modbus Communication Modbus protocol communication is included wit...

Страница 32: ...asurement glass Note that for the timer to be active power must be constantly applied to the instrument If the power is removed or a power disturbance occurs the timer is reset The default factory time setting is once every 24 hours This time period can be adjusted if desired at Modbus Address 40025 which is an integer The allowable setting range is 1 hour to 100 hours 8 5 Reset Reading to Zero So...

Страница 33: ...setting Error See sections 7 2 7 41 for error settings The sample back light blinks at a rate of once every 2 5 seconds to indicate a level 3 fault Level 3 Self Clearing fault conditions Message Description of Fault Corrective Action MA 4 20 mA enabled loop open Check 4 20 mA wiring or turn off 4 20mA if not used CAL Calibration invalid not accepted Recalibrate if needed WATR No water flowing Chec...

Страница 34: ...it for the display to read HOLd then press Mode Exit 3 Display will show FLOW with the number 0 Press either the or button 4 CLX XT will drain and then pulse in water while a count is displayed on the screen 5 The display will show one of three messages HI LO or Good The flow test determines if the flow rate is suitable for proper operation Loosen the locking nut then adjust the pressure regulator...

Страница 35: ...measurement cuvette 2 Measurement cuvette dirty 3 Reagents bad or expired 4 Buffer reagent not being dispensed 1 Install desiccant cartridge kit 2 Replace or clean cuvette 3 Replace reagents 4 Check buffer lines and check valves Upper display flashes Sample Over Range Check sample Sample may be too high to read Upper display shows nOnE while attempting to calibrate No current reading displayed Wai...

Страница 36: ...entific distributor or representative It is recommended to keep one kit on hand at all times Generally both pump tubes should be replaced annually Spare cap assemblies for both the buffer and the indicator are supplied and can be replaced when needed Every 30 days 1 Check for leaks and proper operation of the instrument in general 2 Check the T strainer for debris Clean if needed 3 Check the cooli...

Страница 37: ...ay There is no need to completely remove the hammer and spring 4 Working on one reagent side at a time Replace the black tubing between optics inlet and the check valve OUTLET Discard the old tubing 5 Ensure the check valve is placed into its seat 6 Repeat steps 4 5 for the other reagent 7 Replace the hammer and spring back into place and secure with the thumb screw 8 Check the drawing on the foll...

Страница 38: ...r a period of time Steps 1 Press SERVICE to stop the flow of sample water and drain the cuvette 2 Ensure the source water is turned off 3 The T strainer is clamped to the intake regulator The removal requires the use of a flat blade screwdriver as shown in the photo Once the two clamps are opened the T strainer can be removed 4 Disconnect the top of the T strainer and regulator from the tubing and...

Страница 39: ...contents of the DPD powder bottle small brown bottle Cap and shake to fully dissolve the powder Once mixed the indicator has an expected life of up to 90 days if kept in the powered cooling chamber Write the mixing date on the reagent bottle labels in the area provided Dispose of expired reagents correctly To replace the reagents press the SERVICE button this will empty the cuvette and stop any fl...

Страница 40: ...ains power plug It is usually a good idea to disconnect or shut off the source water 10 5 Cleaning the CLX XT Flush the system as mentioned in section 10 1 Maintenance Schedule When the flushing is finished press the SEVICE button wait until the display reads HOLd As a mater of safety always disconnect any power source to the CLX XT prior to attempting any cleaning It is recommended that the sourc...

Страница 41: ...ms shown below are recommended accessories and replacement parts Accessory Catalog Number Photo Check Valve Flushing kit 25096 Reagent Kit Total Chlorine 12 month supply 09991 Operating Manual CLX XT 28652 N A Tubing Cuvette Kit 09950XT Replacement Cuvette 25018S Check Valve Kit 25017S ...

Страница 42: ... 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 Florida 33913 Phone 239 337 2116 Toll Free 888 203 7248 Fax 239 454 0694 Email hf info wattswater com ww...

Страница 43: ...hall 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 conditions chemical or any other circumstan...

Страница 44: ...Notes ...

Страница 45: ...Notes ...

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