Hach Lange CL17 User Manual Download Page 43

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Maintenance

6.2

Unscheduled maintenance

6.2.1

Fuse replacement

The T, 2.5A, 250V fuse used in this instrument is used for both 115V and 230V operation.

DANGER
Electrocution hazard. Remove power from the instrument when removing or
installing a fuse.

DANGER
Fire hazard. For continued protection against fire, replace the fuse only with a fuse
of the same type and rating.

Fuse replacement procedure:

Make sure there is no power supplied to the instrument. the instrument power switch
does not remove power from the fuses, Power must be disconnected remotely to
remove power from the fuses.

Remove the customer access cover.

Locate the fuse holders (near the terminal strip in the customer wiring compartment).
Refer to

Figure 13 on page 22

Remove the two fuses (F1 and F2) and replace them with two new fuses with the
same specifications (T, 2.5A, 250V). Refer to

Parts and accessories on page 49

Reinstall the customer access cover and resupply power.

Table 7 Replacement Tubing Lengths for

Figure 21

Item

Description

Length (Qty)

From...

To...

Item Number

1/8"

ID, 1/4" OD

4.5 inches (1)

Pump Body Out

Colorimeter

43293-00

1/32" ID, 3/32" OD

7.0 inches (2)

Pump Body Out

Y-Fitting

44253-00

1/16" ID, 3/32" OD

2.0 inches (4)

Pump Body In

Pump Body Out

42717-00

0.062 ID, 0.125" OD

6.0 inches (2)

Reagent Bottle Cap

Pump Body In

42076-00

0.062" ID, 0.125" OD

6.0 inches (2)

Reagent Bottle Cap

Reagent Vent Fitting

42076-00

1/32" ID, 3/32" OD

7.0 inches (2)

Reagent Bottle Bottom

Reagent Bottle Cap

45524-00

1/8" ID, 1/4" OD

7.0 inches (1)

Sample Bypass Tee

Pump Body In

43293-00

1/8" ID, 1/4" OD

1.5 inches

Sample Bypass Tee

Sample Inlet Fitting

43293-00

1/4" OD x 0.04 W, Black

varies (1)

Sample Conditioning Out

Case Fitting

30616-00

1/2"

varies (1)

Instrument Drain

Customer Drain

(not supplied)

1/32"

ID, 3/32"

3 inches

Sample Bypass Tee

Drain fitting

44253-00

1/32" ID, 3/32" OD

1.0 inch (1)

Y-Fitting

Colorimeter

44253-00

0.500” ID, 11/16” OD

12 inches

Colorimeter

Drain Fitting

54108-00

Table 8 Drain, air purge, sample-in, and enclosure locations

Air purge, 0.01 CFM at 20 PSIG max, ¼ in. O.D. tube

Case drain, ½ in. I.D. tube

Sample drain, ½ in. I.D. tube

Sample in, 5 PSIG max, ¼ in. O.D. tube

Enclosure

Summary of Contents for Lange CL17

Page 2: ......

Page 3: ...ltage selection for alternate voltage operation 21 3 8 4 Alarm connections 22 3 8 5 Recorder output connections 23 3 9 Install the pump valve pinch plate 24 Section 4 System Startup 27 4 1 Install the reagents 27 4 2 Install the stir bar 28 4 3 Supply the sample 29 4 4 Supply power to the analyzer 29 Section 5 Operation 31 5 1 Keypad and display information 31 5 2 Instrument menu structure 32 5 2 ...

Page 4: ...ction 9 Contact information 51 Section 10 Certification 53 10 1 FCC PART 15 Class A Limits 53 Appendix A Network Interface Card 55 A 1 Attach the analyzer to the network using an AquaTrend interface 55 A 2 Adding the measurement to a channel 56 A 3 Alarms and warnings 56 A 4 Logging data using the serial input output module 56 A 5 Manually polling data 57 A 6 Using the signal output module 57 A 7 ...

Page 5: ...rb Sample conditioning Use provided sample conditioning Regent Standard Requirements Maximum reagent usage One half liter per month each of the two reagents Reagent containers High density polyethylene 2 liter bottles Reagent containment Reagent bottles are contained inside the analyzer enclosure and are vented externally Electrical Power requirements 100 115 230 VAC selection switch inside instru...

Page 6: ...t calibration curve Power switch User accessible power switch is required Recorder One 4 20 mA 0 20 mA Alarm relay outputs Two SPDT relays 5A resistive load at 240 V ac Can function as sample set point alarms high or low or as a system warning indicator or a system alarm indicator Optional external outputs Hach AquaTrend Network Interface Environmental Storage temperature range 40 to 60 C 40 to 14...

Page 7: ...ous injury WARNING Indicates a potentially or imminently hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation that may result in minor or moderate injury Notice Indicates a situation that is not related to personal injury Important Note Indicates a situation which if not avoided may cause damage to the instrument Infor...

Page 8: ...iethyl p phenylenediamine DPD indicator and a buffer The indicator and buffer are introduced into the sample causing a red color to form with an intensity proportional to the chlorine concentration Chlorine concentration measured photometrically is displayed on the front panel three digit LCD readout in mg L Cl2 A recorder output 4 20 mA is available Recorder span minimum and maximum values in mg ...

Page 9: ...lorine free available chlorine plus combined chloramines is determined by adding potassium iodide to the reaction Chloramines in the sample oxidize iodide to iodine which along with any free available chlorine oxidizes DPD indicator to form the magenta color at a pH of 5 1 A different buffer solution containing potassium iodide maintains reaction pH After the chemical reaction is complete the opti...

Page 10: ... operate pinch blocks that squeeze special thick walled tubing against a fixed plate The cycle operates as follows 1 The sample inlet line is opened allowing sample under pressure to flush sample tubing and the colorimeter sample cell where the measurement is made 2 The sample inlet line is closed leaving fresh sample in the cell Cell volume is controlled by an overflow weir 3 As the sample inlet ...

Page 11: ...enclosure is designed for general duty indoor installation with a nearly constant ambient temperature between 5 and 40 C 18 to 104 F The enclosure environmental rating is IP62 with the door closed and latched Do not mount the instrument in direct sunlight shield from dripping water 3 3 Mount the instrument on the wall The instrument case is designed for wall mounting Refer to Figure 2 Figure 3 and...

Page 12: ...ure 2 CL17 instrument dimensions 1 of 3 1 Air purge quick connect 25 O D Polyethylene Tubing 4743800 4 Power connections 2 Relay alarm contact connections 5 4 x recommended mounting bolt 3 Network and 4 20 mA connections ...

Page 13: ...11 Installation Figure 3 CL17 instrument dimensions 2 of 3 ...

Page 14: ...ct the inch O D poly tubing by pushing it into the fitting Two distinct stops will be felt as the tubing is correctly attached If the tubing is not properly seated it will come loose when water pressure is applied The sample drain fitting is sized for inch ID flexible tubing not supplied CAUTION Fire hazard This analyzer is intended to be used for water samples only Note The inch enclosure drain m...

Page 15: ... If the sample pressure into the instrument exceeds 5 psig at the analyzer inlet flooding and instrument damage may result unless the sample conditioning kit is installed Install sample line taps into the side or center of larger process pipes to minimize the chance of ingesting sediment from the pipe line bottom or air bubbles from the top A tap projecting into the center of the pipe is ideal Ref...

Page 16: ...ple flow through the analyzer 3 6 1 Assemble the sample conditioning kit Refer to the complete system diagram in Figure 7 and the tips in Table 3 to assemble the components Seal all threaded fittings with two wraps of Teflon tape provided Two stops should be felt when installing tubing into the push in fitting The first is when the tubing clears the gripper ring and the second is when the tubing m...

Page 17: ...per operation 1 Set flow by adjusting the ball valve item 18 in Figure 7 The valve is fully closed when the lever is perpendicular to the valve body and fully open when the lever is parallel with the valve body 2 Observe the flow in the unfiltered sample bypass clear tube item 13 in Figure 7 Make sure the flow is adjusted so there is always bypass flow 3 Use the ball valve item 19 to turn off samp...

Page 18: ...16 Installation Figure 7 Sample conditioning kit ...

Page 19: ...reen provided with strainer and in Maintenance Kit 55165 00 1 54184 00 15 Teflon Thread Tape inch wide 1 70608 24 16 Tubing Polyethylene 0 250 O D 0 040 W Black 15 feet 30616 00 17 Tubing Polyethylene 0 500 O D 0 062 W Black 10 feet 51159 00 18 Valve Ball PVC NPT PVC 1 54177 00 19 Valve Ball PVC NPT PVC 1 51395 00 Table 2Sample condition kit parts list notes for Figure 7 The filter element is fact...

Page 20: ...ical connections All power connections are made through the conduit openings in the upper left side of the instrument The instrument is shipped with plugs in all of the conduit openings Wire the instrument for power alarms and relay connections using sealing type conduit fittings to maintain the IP62 environmental rating If connections are not made through a conduit opening install a liquid tight ...

Page 21: ...and Figure 12 For process or industrial applications the national electrical codes of most countries require that AC service feeds be hard wired and contained in conduit systems The CL17 Chlorine Analyzer has been designed to conform to this requirement Conduit is recommended for two reasons 1 It is generally required by most local electrical codes 2 Use of metal conduit can improve immunity to li...

Page 22: ... power cord with three 18 gauge conductors including a safety ground wire can be used Refer to Figure 10 for strain relief assembly The length of the power cord must not exceed 3 meters 10 feet 3 8 2 Wiring the instrument Connect the unpowered wires to the instrument power terminal as follows 1 Strip the outside insulation of each wire back inch Refer to Figure 14 on page 23 2 Connect the three wi...

Page 23: ...on switch shown in Figure 13 to the 230V position The fuses used in this product are 5 mm x 20 mm The fuses used are approved for both North American and European use they do not need to be changed when voltage is converted Figure 11 Customer connections to analyzer 1 Relays 3 AC power 100 115 230 VAC 50 60 Hz 90 VA fused at 2 50A 2 Recorder Figure 12 Power connections 1 A method to remove power f...

Page 24: ...nstructions below for connection information The Normally Open and Common relay contacts will be connected when an alarm condition is active The relay connector accepts 18 12 AWG wire Wire gauge should be determined by load application Wire gauge less than 18 AWG is not recommended 1 Make sure no power is supplied to the instrument 2 Strip the insulation on each wire back inch Refer to Figure 14 3...

Page 25: ...ulation on each wire back inch Refer to Figure 14 Note Use a twisted pair shielded cable Use of non shielded cable may result in radio frequency emission or susceptibility levels higher than allowed 4 Route the wire through an available strain relief Figure 14 Proper wire preparation and insertion 1 Strip in of insulation 2 Seat insulation against connector with no bare wire exposed 1 2 Figure 15 ...

Page 26: ...ump valve module are shipped in the installation kit and the pump tubes are held in place with tape Reagent flow through the pump valve module must be from bottom to top If reversed fluid mixture will be pumped from the colorimeter sample cell causing reagent bottles to overflow Complete the assembly of the pump valve module as follows 1 Remove the tape 2 Make sure the individual pinch blocks are ...

Page 27: ...y turning the screws in small increments moving from one screw to the other so that the plate is drawn down evenly Tighten until the plate is seated against the pump valve module Figure 17 Installing pump valve module pinch blocks 1 Pump Valve module 3 The dissimilar shaped block should be on top 2 Remove tape from tubes ...

Page 28: ...re 18 Aligning the pump valve module pinch plate 1 Align pinch plate with pump valve module 2 Install screws Advance the screws in small increments moving from one screw to the other so that the plate is drawn down evenly ...

Page 29: ... buffer solution bottle and install the cap and tubing labeled BUFFER to the buffer solution bottle Note It is normal for the reagent tubing to become discolored over time The second reagent the indicator solution must be prepared The indicator solution and indicator powder must be mixed just before use to ensure the best instrument performance Using the powder funnel provided in the maintenance k...

Page 30: ...Note Make sure the stir bar drops down into the colorimeter and remains in the colorimeter 1 Remove the plug in the top of the colorimeter 2 Drop the stir bar into the hole Refer to Figure 19 The bar should rest on the bottom of the vertical bore 3 Replace the plug Figure 19 Installing the stir bar 1 Remove the plug from the top hole of the colorimeter 3 Colorimeter assembly 2 Drop the stir bar in...

Page 31: ...eaks Until the surface of the sample cell becomes completely wetted bubbles may cling to the sample cell and cause erratic readings This condition is temporary Its duration depends on the sample properties 4 4 Supply power to the analyzer The power switch is located inside the enclosure door in the recessed area to the left of the colorimeter block Set the POWER O switch to ON and allow the analyz...

Page 32: ...30 System Startup ...

Page 33: ...n the display 3 UP ARROW Use to scroll through menu options or edit display components Active when the up down arrow icons are shown on the display 4 LEFT ARROW Allows movement so different components of the display can be edited Active when the left arrow icon is shown on the display 5 DOWN ARROW Use to scroll through menu options or edit display components Active when the up down arrow icons are...

Page 34: ...fset is too large a marginal zero MARG Z warning will occur Refer to Calibration on page 36 CAL STD This feature is used to adjust the analyzer slope using a prepared standard If the adjustment is too large the analyzer will not accept it and a marginal gain MARG G warning will occur The new standard will not be accepted and it will have to be checked again using another method to establish a more...

Page 35: ...lays the last Reference A D counts SAMPLE1 Momentarily displays the last Sample A D counts ZERO1 Momentarily displays the last Zero A D counts CYCLE TIME1 Momentarily displays the Motor On time in seconds POWER FAIL WARNING Sets the power fail warning to ON or OFF Press ENTER then use the ARROW keys to toggle between ON and OFF Press ENTER to select Press EXIT to accept changes and return to SETUP...

Page 36: ...nd Low limits to be set and also offers the capability to use the ON SYSTEM ALARM option to communicate an alarm condition Use ON SYSTEM ALARM to send a signal to the control room using the recorder output to drive any device being controlled to full off or to maintain the present level if the analyzer goes into System Alarm status and shuts off The CL17 is supplied with the recorder output set at...

Page 37: ...ept the value Press EXIT twice to return to normal operation 5 2 4 Maintenance menus The following selections allow the user to perform standard maintenance tasks Use the ARROW keys to scroll through the menu selections then press ENTER to select the displayed menu option PRIME This feature causes the analyzer to make 39 concurrent accelerated cycles to prime the reagent lines Press ENTER to activ...

Page 38: ...y systems that contain chemical reagents and standards Protective eye wear is always recommended when contact with chemicals is possible This procedure provides the best over all accuracy by establishing the zero mg L reference and the span setting Perform the calibration as follows 1 Prepare a zero chlorine reference solution by adding approximately 4 mL of Ferrous Ammonium Sulfate Cat No 181133N...

Page 39: ... Accuracy specifications over the full 0 to 5 mg L range cannot be assured unless the sample chlorine concentration used for calibration is greater than 3 0 mg L Setting the calibration at a lower concentration may provide accuracy at that point but can cause large errors in other portions of the span Perform a calibration by comparison as follows 1 When the sample chlorine concentration is relati...

Page 40: ...38 Operation ...

Page 41: ...elow 27 C 80 F replace at six month intervals Above 27 C replace at three month intervals Pump tube replacement procedure 1 Shut off sample flow to the instrument and set the POWER I O switch to OFF O 2 Remove the screws securing the pinch plate to the pump valve module Refer to section 3 9 on page 24 Loosen in small increments moving from one screw to the other to allow tension to be relieved eve...

Page 42: ... illustration correspond to the item numbers listed in the legend where the size catalog number and quantity also are given The length given in Table 7 tells how long that particular tubing segment at a time should be the operator must cut a piece to that length from a coil of the proper tubing The catalog number given for the tubing in the legend identifies the coil of tubing to cut the segment f...

Page 43: ...or Figure 21 Item Description Length Qty From To Item Number 1 1 8 ID 1 4 OD 4 5 inches 1 Pump Body Out Colorimeter 43293 00 2 1 32 ID 3 32 OD 7 0 inches 2 Pump Body Out Y Fitting 44253 00 3 1 16 ID 3 32 OD 2 0 inches 4 Pump Body In Pump Body Out 42717 00 4 0 062 ID 0 125 OD 6 0 inches 2 Reagent Bottle Cap Pump Body In 42076 00 5 0 062 ID 0 125 OD 6 0 inches 2 Reagent Bottle Cap Reagent Vent Fitti...

Page 44: ...ress ENTER 3 Refer to Figure 22 and locate the colorimeter 4 Remove the rubber plug on the top of the colorimeter assembly 5 Remove the magnetic stir bar using a bent steel paper clip as a retrieval tool Refer to Figure 22 6 Wait until CLEAN flashes on the status line of the display then fill the colorimeter with 19 2 N Sulfuric Acid Standard Solution 203832 Note Lower normality sulfuric acid will...

Page 45: ... 22 Removing the stir bar 1 Remove the plug from the top hole of the colorimeter 3 Colorimeter assembly 2 Gently insert a straightened paper clip into the hole at the top of the colorimeter and slowly pull out the stir bar ...

Page 46: ...e 16 3 Insert the filter element and push until it stays in place 4 Replace the filter housing top 6 2 5 Reagent spill clean up Wipe up spills with a clean disposable wipe and discard according to applicable Federal State and Local regulations Figure 23 Cleaning the colorimeter 1 Remove the plug from the top hole of the colorimeter 3 Colorimeter assembly 2 Gently scrub the inside of the colorimete...

Page 47: ...ions Incorrect line voltage selector switch setting Check the line voltage selector switch position Motor cable not connected to the circuit board Check the motor cable connection Defective motor Replace motor Zero reading No Stir Bar Place Stir Bar into Colorimeter Pinch Plate thumb screws are not fully tightened Tighten the thumb screws Sample is not flowing to the instrument Check the sample co...

Page 48: ...mple cell If the problem is not yet resolved remove the plug from the colorimeter s sample viewing port You should be able to observe a green light You must wait several minutes from instrument turn on for the light to come on It will remain on continuously thereafter If the light does not come on and the colorimeter has just been removed and re inserted the colorimeter connector is not making a p...

Page 49: ...ll Replace sample cell Marginal Gain A calibration resulted in a gain correction factor greater than 1 1 or less than 0 9 The calibration standard and the value that the operator is attempting to input do not match Re test the calibration standard and perform a new calibration on the CL17 MARG G Set CAL Defaults Verify standard value Recalibrate the instrument Marginal Zero A calibration resulted ...

Page 50: ...48 Troubleshooting ...

Page 51: ...0 mesh Replacement for Sample Conditioning each 5418400 Stir Bar Micro each 6865600 Thumb Screw to hold Pressure Plate 2 5410100 Optional Accessories Flow Meter with 1 4 inch OD tubing each 4643600 Power Cord kit with strain relief 115V North American Operation each 5448800 Power Cord Kit with strain relief 240V European Operation each 5448900 Reagents Reagent Kit for Free Chlorine Testing each 25...

Page 52: ...50 Parts and accessories ...

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Page 54: ...Τηλ 30 210 7777038 Fax 30 210 7777976 info hach lange gr www hach lange gr HACH LANGE D O O Ivana Severa bb HR 42 000 Varaždin Tel 385 0 42 305 086 Fax 385 0 42 305 087 info hach lange hr www hach lange hr HACH LANGE MAROC SARLAU Villa 14 Rue 2 Casa Plaisance Quartier Racine Extension MA Casablanca 20000 Tél 212 0 522 97 95 75 Fax 212 0 522 36 89 34 info maroc hach lange com www hach lange ma ...

Page 55: ...nable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which ...

Page 56: ...54 Certification ...

Page 57: ...ake sure the wire insulation is seated against the connector Do not leave any bare wire exposed 4 Plug the terminated cable into J1 on the Interface Card 5 Reattach the access panel to the instrument enclosure with the two screws 6 Reapply power to the CL17 Analyzer A 1 Attach the analyzer to the network using an AquaTrend interface 1 Make network connections from the CL17 Analyzer to the AquaTren...

Page 58: ... recorder outputs can also be connected to a Signal Output Module Please refer to the Signal Output Module Manual A 4 Logging data using the serial input output module The CL17 Analyzer sends the chlorine reading in ppm to a SIO on the network if one is present The service diagnostic data must be disabled before outputting data to the SIO 1 Press the MENU key then the DOWN ARROW key until SETUP is...

Page 59: ...Manual Cat No 5125018 to configure up to two relays and one 4 20 mA outputs The relays and recorder output mirror the outputs of the relays and recorders internal to the CL17 A 7 Logging data using the MOD I O module Measurement and alarm data from the CL17 Analyzer can be converted to a Modbus protocol using the Hach MOD I O Module The data can then be polled by any Modbus Master Device PLC DCS i...

Page 60: ...58 Network Interface Card ...

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