background image

38 

 

 

Salinity Probe Calibration 

 

Salinity is a measurement of dissolved solids in liquid: these solids will conduct electricity to 
varying degrees. A special probe is used, with two electrical contacts in it, to determine the 
resistance to the flow of electricity in the liquid. The higher the resistance, the lower the PPM 
of dissolved solids. 
 
In the MkII systems, the salinity probe is located in a port on the bottom of the pump module-
manifold. This way we can look at the salinity level of the product water before deciding to 
either reject the water or accept it and divert it into the holding tank.  
 
The salinity level in parts-per-million can be seen either through the salinity meter in the soft-
ware, or on the display.  
 
The next step is to decide what medium to use as calibration solution. If a hand-held salinity 
meter is available, you can simply take a reading of your product water while the unit is run-
ning, then calibrate our MPC board to match that reading. As long as you trust the accuracy of 
your hand-held meter, this is all that is necessary.  
 
The microprocessor calculates salinity from the signals sent back to it from the probe.  The 
salinity circuit can be adjusted from the Spectra software by adjusting the “Salinity Calibra-
tion” parameter, or from the display in the Salinity Cal window.  Increase the calibration pa-
rameter to increase the salinity reading. 
 
Conductivity calibration solutions are available from Spectra Watermakers if another method 
of calibration is necessary. These solutions are pre-made potassium chloride solutions with 
known salinity levels.  Calibration consists of inserting our probe into the solution  and setting 
the calibration parameter to the required value. 
 
To remove the salinity probe, unplug the telephone style cable from the probe.  Use a wrench 
to unscrew the  probe from the manifold. Re-connect the salinity probe cable, and you are 
ready to calibrate. Place the flat surface of the probe containing the two metal conductivity 
contacts into the calibration solution being careful not to get the cable or jacks wet.  Upon re-
installation, it is recommended to use Teflon tape on the salinity probe threads before re-
installing to prevent leaks. We also recommend putting some silicone grease inside the jack, to 
prevent moisture from causing corrosion inside the jack. 
  

Summary of Contents for Newport 400

Page 1: ...L Part 1 Installation Operation Maintenance Part 2 Programming and Controls Spectra Watermakers Inc 20 Mariposa Road San Rafael CA 94901 Phone 415 526 2780 Fax 415 526 2787 E mail spectra spectrawater...

Page 2: ...2...

Page 3: ...boat is in fresh or dirty water see Dry testing the system Spectra dealers are responsible for educating the vessel owners on the operation and maintenance of the system We request that you walk thro...

Page 4: ...4...

Page 5: ...sh Water Flush Cycle 29 Manual Operation 31 Maintenance 36 Bulletins 44 Long Term Storage Procedures 31 Winterizing 34 Membrane Cleaning 36 Salinity Probe Calibration 38 Suggested Spares 39 Newport Tr...

Page 6: ...6...

Page 7: ...n understanding the function of each component Layout the system Before starting the installation identify the location where each module and component will be placed Insure that there is proper clear...

Page 8: ...er line as possible to avoid contamination and air induction The brine discharge through hull should be mounted above the waterline in or just above the boot stripe to minimize water lift Double clamp...

Page 9: ...r the flush water flush solenoid and flush water pressure regulator Feed Pump Module Fresh Water Flush Module Mount the feed pump module on a horizontal or vertical sur face that can be up to 3 1 0M a...

Page 10: ...ss to the pressure relief valve on the Clark pump The Clark pump membrane module comes complete with a mounting system Be sure to use the supplied washers on the rubber feet Use it as a template for d...

Page 11: ...tube and fittings Use two grab rings on the 1 2 parker tubing Refer to the parker assembly instructions The remote control panel can be mounted anywhere that s dry and convenient Cut a 4 9 16 116 mm...

Page 12: ...e brine overboard fitting System Piping schematic Mount the pressure gauge in the low pressure inlet gauge tee Flush water from ship s pressure water system 25 psi 2bar minimum Use the 1 2 inch nylon...

Page 13: ...t from boost pump Leave enough extra length in this hose to allow the front cover to be moved aside Flush water Inlet From Flush Module Feed Water Inlet from Filters Product Water Outlet to Tank Feed...

Page 14: ...the membrane housing to the Product Inlet fitting on the pump module manifold using the supplied 1 4 black nylon tubing Route the product water from the pump module manifold into the top of the tank I...

Page 15: ...m to function properly The domestic fresh water pump must be able to deliver 1 5 gallons per minute 6lpm at 25 PSI Connect the wiring harness and heat shrink butt splices Brine Discharge Route the Bri...

Page 16: ...r 1 4 3 8 tube 1 2 tube should not bottom out in the fitting to allow full compression of the O ring Hand tighten the nut DO NOT OVER TIGHTEN DO NOT USE A WRENCH The tube should not come out if pulled...

Page 17: ...tems have a Power Inlet harness with a terminal block a 50 15M cable with connectors is supplied for the MPC 5000 control display and a two concuctor boost pump power cable Power inlet harness with te...

Page 18: ...d heat the connectors to waterproof them Check the wire size chart to select the proper size power feed to the main power harness DC power feeds should be uninterruptible to insure proper operation of...

Page 19: ...25 30 9 4 4 25 35 10 6 4 25 40 12 2 35 45 14 2 35 50 15 2 35 MkII 24V Meters AWG SQ MM 10 3 12 4 15 4 5 10 6 20 6 1 8 10 25 7 6 8 10 30 9 4 8 10 35 10 6 6 16 40 12 6 16 45 14 6 16 50 15 4 25 Wire leng...

Page 20: ...ult or at the end of certain timed cycles Use only the buzzer units supplied by Spectra Watermakers as current on the LCD buzzer terminal is limited to 20 mA any excessive load may damage the controll...

Page 21: ...the bottom outlet at the top The ballast wires plug into the end of the bulb in the lamp module The ballast RED wire connects to STER terminal on the MPC board and the bal last BLACK wire connects to...

Page 22: ...rt up within five days it will automatically do a fresh water flush AutoFill mode can be ended by pushing the stop button or the Autoflush button If the watermaker is in Autorun mode it can be put int...

Page 23: ...23...

Page 24: ...discover a problem or deficiency in the installation If the location or weather prevents proper testing refer to the section Dry Testing 1 First Check That Thru hull valve is open Service Run Auto Ser...

Page 25: ...In any case do not pressurize the system for the first twenty minutes or more 5 After the purge sequence The control will alarm with the message Close pressure relief valve Close the valve and procee...

Page 26: ...s water higher than 750 PPM Anything below 500 is excellent Feedwater Pressure Pressure range 90 115 PSI 7 8 BAR Pressure will be higher in cold water and lower in warm water Extreme salinity or tempe...

Page 27: ...micals out of the system 20 minutes total purging If you get a SERVICE PREFIL TER alarm the flush water flow is not enough or the feed pump is running to fast See the instructions for Flush Cycle Adju...

Page 28: ...ration For optimum performance Auto run the system as long as possible at one time Never let the system sit with salt water in it Never allow continuous air leaks in the intake Normal Shut Down If the...

Page 29: ...pump is running a signal will be sent to the controller changing the speed setting and the pump will speed up or slow down slightly Adjust the flush speed as follows Push the Auto Store button Push t...

Page 30: ...flush may not operate if the valve is open The power for the system must remain on during the auto flush mode Turning off the power will disable the auto store function and damage may occur Pressing...

Page 31: ...r taste it The diversion valve an electrically operated three way valve which is normally energized by the MPC controls to send water to the tank will not open automatically in manual mode Instead it...

Page 32: ...Storage or Pickling If the system is to be left unused for more than 2 weeks perform the following storage pro cedure The procedure introduces a chemical compound into the system that prevents bio lo...

Page 33: ...he service port of the boost pump module Lead the hose into the bucket Turn the service valve on the boost pump module 180 so the intake is now coming from the bucket Step 5 Mix the storage chemical c...

Page 34: ...the service port of the boost pump module Lead the hose into the bucket Turn the service valve on the boost pump module 180 so the intake is now coming from the bucket Step 5 Pump as much as possible...

Page 35: ...lean when the first segment appears on the filter condition bar graph on the LCD display To service the filters shut off the thru hull open the housings discard the old filters Clean out the housing b...

Page 36: ...throughout the system will heat as it circulates in and out of the pot An alternative is to heat the one or two gallons of initial water to 120 on the main stove before mixing in the cleaner and circ...

Page 37: ...box to turn on the feed pump Circulate the storage chemical in the system for approximately 25 minutes Circulate the chemical in the system for approximately 25 minutes Allow to soak for several hour...

Page 38: ...he microprocessor calculates salinity from the signals sent back to it from the probe The salinity circuit can be adjusted from the Spectra software by adjusting the Salinity Calibra tion parameter or...

Page 39: ...consisting of Clark pump seals O rings tools and mem brane cleaning chemicals One replacement strainer screen O ring for strainer screen O rings for filter housing Spectra Watermakers parts list SC 1...

Page 40: ...ct the tubes to one of the components secure the tube runs and then trim and connect to the other component A 90 degree bend in a tube is better than a 90 degree fitting A tube when mounted should hav...

Page 41: ...ight while moving the tube around to prevent binding One thread should be showing under the nut Secure the tube so it won t back out when tightening Refer to figure 3 Use 13 16 wrench to hold a straig...

Page 42: ...ot run loose or broken pump wire connection speed control overheat tanks are full Check wiring at terminal block inside MPC Improve cooling Check tanks system cannot be started if tanks are full Syste...

Page 43: ...o High Voltage Too Low battery voltage too high or low loose wires or poor connec tions Charge batteries Check charging voltage Check power connections Re starting no signal from flow meter at startup...

Page 44: ...ant in preventing bio fouling If your prefilters are allowed to become a breeding ground for bacteria get smelly the contamina tion will spread throughout the system When we cut open a failed membrane...

Page 45: ...Run the system depressurized with the watermaker drawing water from the bucket and discharging over board When about half the water is gone from the bucket stop the unit and let the mem brane soak fo...

Page 46: ...inutes to clear away the chemicals Normally during periods of disuse the MPC 5000 will remain powered up so that it can do the five day flush cycles and no storage solution will be present If the cont...

Page 47: ...r only an hour or so a day will probably need to have the filters changed due to odor before they are dirty enough to restrict water flow Prefilters can be cleaned We recommend that you have three set...

Page 48: ...ve a service prefilters or check strainer alarm if so equipped Plugged filters can be cleaned several times by soaking in a bucket towing behind the boat at moderate speeds or hosing them off When ope...

Page 49: ...g The membrane can only handle small amounts of chlorine for short periods without damage The chlorine will damage the bonding agent in the membrane in a very short time So if you skimp on the char co...

Page 50: ...50 Z BRANE OPERATION MANUAL...

Page 51: ...continuous 12Vor 24V DC power to be operative The installation of the Z Brane only consists of wiring the power supply to a continuous source The Z brane power supply can tolerate voltages between 10V...

Page 52: ...e not only to protect the membrane but to prevent corrosion in the feed water system To achieve full effectiveness thoroughly fresh water flush the watermaker several times before leaving the vessel T...

Page 53: ...te cylinder and base End block A End cap Cylinder ring Stainless steel tube End block B Valve block Alternate brine out Reset button Not on all units Test port Center block High pressure out Clark Pum...

Page 54: ...e spool Spool piston End block A Piston O ring Valve bore O ring Spacer ring Valve block Brine port O ring Pilot port O rings Reversing Valve End Blocks 5 16 2 3 4 SS A H bolts Valve bore O ring Spool...

Page 55: ...rings Pilot spool O rings 4 Mount inside block Pilot valve pin Pin seal O rings Pilot spool Center block Check valve poppet Feed in Check valve spring Check valve seat Check valve retainer Check valv...

Page 56: ...sembly End cap O ring Cylinder Ring Cylinder end cap S S compression fittings 1 2 SS tube Piston with seal Composite cylinder and base PL MTS 3 8X1 2S HP CYL SST HP CYL CCA SO HPP ECCB HP CYL EC HP CY...

Page 57: ...HP CYL PT PISTON 2 HP TB SR SPACER RING 2 HD CPS 3 824175 3 8 24X1 3 4 CAP SCREW 8 HD CPS 5 16X3 5 16 18X3 1 4 CAP SCREW 4 HD CPS 5 162 75 5 16 X 2 3 4 CAP SCREW 8 HD WSH 3 8X5 8S 3 8 X 5 8 O D SS FL...

Page 58: ...58...

Reviews: