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8.13 4mA Adjustment

If the 4-20 mA setting is turned ON (8.1

Setting the 4-20

mA Output)

, the following two menus will appear. The first

menu outputs a constant 4 mA while allowing for a small

amount of adjustment. The adjustment can be made using

the



and



buttons. This adjustment will allow the operator to make

the CLX-Ex agree with a PLC or SCADA system. The adjustment limits

are ± 200 counts or about ± 0.2 mA.

This setting will be slightly different on each instrument as each CLX-Ex

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.

8.14 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 adjustment

limits are ± 1000 counts or about ± 1 mA.
This setting will be slightly different on each instrument as each CLX-Ex

will be factory set to 20.00mA.

When complete with the 20mA adjustment, press the



button to exit

to AUTO mode and save all configuration settings.

9.0 Additional Features and

Options

9.1 RS-485 Outputs

The CLX-Ex has the capability to operate in two different RS-485

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 factory setting communication

parameters are 8 bits, no parity and 1 stop bit. These

can be changed in the Extended

CONFIG

menus

8.9

RS-485 Parameters

The master computer will send out:

• Byte #1 the attention character “

” in ASCII or

Hex

• Byte #2 the address of the CLX-Ex being queried
• Byte #3 & 4 CR LF or 0D 0A in hex

The CLX-Ex will respond with:

• The same attention character “

” in ASCII or 3A Hex

•  The address of the CLX-Ex
•  The Reading
•  The Unit (mg/L)

A sample communication would look like this:
(Master computer requesting a report

from address #1)

:1 CRLF

(CLX-Ex set to address #1 Response)

:001 0.0249mg/L

9.1.2 Modbus Communication

Modbus protocol communication is included with this instrument.

The Modbus address list is available from HF scientific or online at

www.hfscientiifc.com.

9.2 Remote Panel Meter (Catalog # 19609)

The remote panel meter allows for remote indication of the mg/L

reading using the 4-20 mA loop of the CLX-Ex. No external power is

required, as the meter is run off of the 4-20 mA source of the CLX-Ex.

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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