Total Dissolved Solids Measurement - IC Controls
                     TOTAL DISSOLVED SOLIDS MEASUREMENT
Total Dissolved Solids
Definition:  Total  Dissolved  Solids  (TDS)  is  a
measure  of  the  sum of  all  inorganic  and organic
substances  in  a  liquid  in  molecular,  ionized  or
micro-granular  colloidal  suspended  form.  The
solids  must  be small  enough to  survive  filtration
through a sieve the size of two micrometer. 
TDS solids  are  normally  found  in  all  freshwater
systems.  Major  applications  of  TDS  are:  at  low
levels the study of water quality for streams, rivers,
lakes,  potable  water  taste,  and at  high  levels  the
control of scale in recirculating water systems. It is
a  quality   indicator  for  drinking  water  and  is  a
general  measure of the presence of chemicals. In
seawater RO desalination, TDS provides a way of
comparing the feed with the permeate quality that Illustration: 210-C analyzer configured to 
is  relevant  to  drinking  water  taste  standards.   measure TDS.
Where does TDS come from?
TDS in Water Systems
TDS  in  surface  waters  come  from  the  solvent
action  of  water  in  contact  with  minerals  in  the TDS  enters  recirculating  water  systems  with  the
earth,  agricultural  and residential  runoff,  leaching water  supply from municipal,  lake,  river,  or well
of  soil  contamination,  and  used  water  from water. Once inside evaporation of a portion of the
industrial  or  sewage  treatment  plants.  Common recirculating water concentrates TDS solids. High
chemical  constituents  are  calcium,  sodium, TDS  levels  generally  indicate  hard  water,  water
chloride, potassium, phosphates and nitrates. They hardness  must  be  removed  or  will  cause  scale
may  be  cations,  anions,  molecules  or buildup  in  pipes,  valves,  and  filters,  reducing
agglomerations of molecules,  so long as they are performance  and  adding  to  boiler  system
soluble.   The  United  States  and  Canada  have  a maintenance  and  efficiency  costs.   TDS  is
secondary water quality standard of 500 mg/L TDS frequently tested manually and by continuous TDS
or  less  for  palatable  drinking  water.  Water  with analyzer which operates a blowdown valve to keep
TDS of greater than 500 mg/L may have poor taste the  system  below  the  scale  deposition
and  when  over  1500 mg/L  will  taste  like  weak concentration.
Alka-Seltzer® to  most  people.                 These effects can also be seen in aquariums, spas,
swimming  pools,  and  reverse  osmosis  water
Total  Suspended Solids  (TSS),  are  different  from treatment systems. Typically, in these applications,
TDS as they cannot  pass through a sieve of  two TDS is tested manually frequently or by continuous
micrometers  and  are  suspended  in  solution. TDS  analyzer,  plus  equipment  and  filtration
Flocculation and sand filtration can remove settle- membranes  are  inspected  for  deposits.
able solids and suspended solids from the water but
dissolved TDS solids are not removed. In aquaculture, TDS is monitored to create a water
29 Centennial Road  • Orangeville  Ontario L9W 1R1 •  Tel:(519)941-8161  •  Fax:(519)941-8164  •  1-800-265-9161
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quality environment suitable for the organism. For pop when they reach the water surface in the boiler.
freshwater  oysters,  trouts,  and  other  high  value Eventually depending on boiler pressure, size, and
seafood, highest productivity and economic returns steam load, some of the steam space in the boiler
are achieved by mimicking the TDS and pH levels fills with bubble foam which may get  carried over
of each species' native environment. into  the  main  steam  pipe.  This  is  dangerous
In hydroponics, total dissolved solids is considered because now the steam is wet as it leaves the boiler,
one of the best indicators of nutrient availability for en-training  bubbles  filmed  by  high-TDS  boiler
the plants being grown. water.  The  TDS  solids  will  contaminate  control
valves, heat exchangers, steam traps, and turbines.
TDS Measurement Methods The  most  common  cause  of  carryover  is  a  high
There are two principal methods of measuring total Total Dissolved Solids (TDS) level. Foaming can
dissolved solids: gravimetic and conductivity. The also be caused by high levels of suspended solids,
standard  method  is  gravimetric,  which  is high alkalinity or contamination by oils  and fats.
considered  the  most  accurate  and  involves Continuous control of boiler water TDS levels, plus
evaporating the sample to dryness at 103 °C, then periodic  checks  for  contaminants  should  ensure
to  180  °C to remove any occluded water,  (water minimal risk of foaming and carryover.
molecules  trapped  in  mineral  matrix),  then To avoid  carryover,  boiler  manufactures  typically
weighing  it  with  a  precision  analytical  balance specify  maximum  TDS  based  on  operating
(normally capable of 0.0001 gram accuracy). This pressure. For drum type boilers:
method is generally considered best, although it is
slow and has inaccuracies from low-boiling-point Drum Pressure PSIG Max Boiler Water TDS
chemicals  which   evaporate  with  the  water. Up to 300 700 to 3500 ppm (mg/L)
from 300 to 450 600 to 3000 ppm (mg/L)
TDS of water is directly related to the conductivity
of dissolved ionized solids in the water. Ions from from 450 to 600 500 to 2500 ppm (mg/L)
the dissolved solids create the ability for water to from 600 to 750 200 to 2000 ppm (mg/L)
conduct an electrical current, which is measured by
the  IC Controls  210-C(TDS)  analyzer,  and from 750 to 900 150 to 1500 ppm (mg/L)
immediately displayed as sodium chloride ppm or from 900 to 1000 125 to 1250 ppm (mg/L)
mg/L  or  µS/cm  conductivity.  When  periodically from 1000 to 1800 100 ppm (mg/L)
standardized with IC Controls TDS standards or by
laboratory  gravimetric  TDS  measurement,  TDS Too  high  TDS,  besides  carryover,  can  result  in
analyzers  based  on  conductivity  provide  a  quick scale  deposits  on  the  boiler  heat  surfaces.
accurate value of the TDS. Regardless  of  the  type  of  scale  deposited  boiler
heat  surfaces  all  exhibit  a  lowered  ability  to
transmit heat. Studies  publisher by water treatment
TDS in Boilers chemical  companies   have  shown  that  3 mm
As a boiler generates steam, TDS impurities which (0.125 inch)  of  scale  thickness  causes  about  2  to
are in the feedwater do not boil off with the steam. 3 % boiler  efficiency loss.  Not  only  does  it  add
TDS  impurities  concentrate  in  the  boiler  water, directly to  the fuel  bill,  but also the slowed heat
building up to produce scale just like in a kettle. As transfer  from  hot  gas  to  boiler  water  results  in
the dissolved solids become more concentrated, the higher temperature in the tube metal, and possible
steam bubbles  formed are  more stable,  failing to tube failure, boiler outage, and costly repairs.
29 Centennial Road  • Orangeville  Ontario L9W 1R1 •  Tel:(519)941-8161  •  Fax:(519)941-8164  •  1-800-265-9161
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However,  when TDS is  measured  on line by the
IC Controls  210-C(TDS)  analyzer,  and
continuously displayed as ppm TDS or mg/L or can
also be displayed as  µS/cm conductivity,  there is
reason to expect scale deposition can be avoided.
When  TDS  is  measured  on  line  and  control
(blowdown) automated with the TDS set point set
in consultation with your boiler specialty chemical
supplier,  scale  deposits  can be eliminated,  saving
fuel and maintenance costs.
Grab sampling for off line analysis
Even  with  continuous  TDS  monitoring,  periodic
samples should be collected as a check, plus with
gravimetric analysis it can be used to standardize
the TDS analyzer.  Standardizing adjusts  the TDS Sample Cooler 501
solids  content  factor,  which  can  change  with
changes  in  water  supply  source  or  chemical What is meant by neutralized conductivity?
treatment. When collecting a sample it is important Boiler water typically contains hydroxyl (OH-) ion
to  ensure  that  you  get  a  representative  sample. alkalinity from high pH. The OH- ion has very high
Boilers  have  a  connection  for  surface  or  TDS conductivity but is a dissociate of H2O so does not
blowdown,  which  is  a  good  place  to  obtain  a contribute to TDS. The OH- ion conductivity can be
representative sample.  Samples  from close to  the eliminated by reducing the pH to 7 or neutralizing
boiler  feedwater  inlet  could  give  a  false  reading. the sample with an organic acid such as gallic or
Samples  from  level  gauge  glasses  or  external acetic  acid.  Organic  acids  contribute  a  negligible
control  chambers  may  contain  condensate  and amount to conductivity of water in the boiler.  
should be avoided.
If sample water is simply drawn from the boiler, it What is the relationship between TDS and 
will  violently  flash  to  steam  as  its  pressure  is conductivity?
reduced. Not only is this potentially very dangerous
to  the  operator,  but  any subsequent  analysis  will TDS ions from dissolved solids create the ability
also be wrong due to the loss of the flashed steam for water to conduct an electrical current, which is
concentrating the sample. measured  by  the  IC Controls  210-C(TDS)  and
immediately displayed as sodium chloride ppm or
To  get  a  cooled  sample  for  analysis,  a  sample mg/L,  or  as  a  conductivity analyzer  displayed as
cooler  such  as  the  IC Controls  501  (see  nearby µS/cm.  When  directly  measured  in  process  the
illustration)  will  be  required.  The  501  sample conductivity  detected  is  not  neutralized.
cooler  is  a  small  heat  exchanger  that  uses  cold IC Controls  210-C  has  an  adjustable  SCF  solids
water  to  cool  the  boiler  water  sample  below the content factor to match your application.
flash point.
Typical non neutralized TDS solids content factors:
TDS as NaCl: 0.47 to 0.50
TDS as 442®: 0.65 to 0.85
TDS as KCl: 0.50 to 0.57
29 Centennial Road  • Orangeville  Ontario L9W 1R1 •  Tel:(519)941-8161  •  Fax:(519)941-8164  •  1-800-265-9161
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Typical neutralized TDS Conversion Factors:
TDS as NaCl: 0.70 to 0.75
TDS as KCl: 0.74 to 0.84
Water treatment chemicals and dispersant can cause
significant variations specific to each plant.   In the
more concentrated boiler water the solids content
factor typically is found between 0.55 and 0.9 ppm
TDS  per  µS/cm.  The  water  treatment  company
should be consulted and periodic gravimetric TDS
tests  done to  confirm the  solids  content  factor  is
stable.
What is the difference between ppm 
and mg/L?
Parts per million TDS or ppm (abbreviated) is an
expression of quantity, mg/L (milligrams per liter)
is an expression of weight.  Both are used as scales
for  TDS, but  ppm is more popular.   There is  no
conversion factor since 1 ppm = 1 mg/L.
Illustration: TDS Standards
How can you calibrate a TDS 
analyzer?
Two ways: TDS  Standards,  traceable  to  NIST  SRM  from
1) The  gravimetric  method  is  considered  the IC Controls; made following ASTM D1125:
most accurate and involves evaporating the A1100244   70.1  ppm or  mg/L as  NaCl  at  25ºC
sample to dryness at 103 °C, then to 180 °C A1100243   700  ppm or  mg/L as  NaCl  at  25ºC
to  remove  any  occluded  water,  then A1100242  7217 ppm or  mg/L as  NaCl  at  25ºC
weighing  it  with  a  precision  balance A1100241  74380 ppm or mg/L as NaCl at 25ºC
capable  of  0.0001  gram.  Gravimetric For maximum precision these standards include a
analysis  is  best,  although  slow,  and  has table of their values at different temperatures. This
inaccuracies  from  evaporation  of  low allows  the  user  to  achieve   quality  calibrations
boiling  point  chemicals.  Use  the  result  to through all temperatures encountered in the field.
adjust  the  TDS  analyzer's  solids  content
factor to achieve the reading. Equivalent  TDS  standards  from  IC Controls:
A1100245   47  ppm  or  mg/L  as  NaCl  at  25ºC
2) By  use  of  known  TDS  standards. A1100246   692  ppm or  mg/L as  NaCl  at  25ºC
IC Controls offers TDS standards as sodium A1100247  7230  ppm or mg/L as NaCl at 25ºC
chloride  ppm  or  mg/L,  made  with  NIST for  maximum precision these standards  include a
SRM  traceable  materials.   Calibration table of their values at different temperatures. This
becomes simply a mater of dipping the TDS allows  the  user  to  achieve   quality  calibrations
sensor  into  the  selected  standard  and through all temperatures encountered in the field.
calibrating.
29 Centennial Road  • Orangeville  Ontario L9W 1R1 •  Tel:(519)941-8161  •  Fax:(519)941-8164  •  1-800-265-9161
www.iccontrols.com •  [email protected]
What  to  Order  for  Boiiller  TDS  moniitoriing
1    TDS  anallyzerr,,  210--C((TDS))--1--10--20 Recommended  opttiions::  TDS  Sttandarrds
1    TDS  sensorr,,  401--2..0--62 A9200000  Sensorr  Siignall  tto  Anallyzerr  Cablle
  210--C((TDS))::  Anallyzerr
Modell  401--2..0--62::  TDS  Sensorr,,  cond..  baaseed
Beeneeffiittss          --  Soolliidd  meettaall  Booiilleerr  Hoouussee  ssuurrvviivvoorr  hhoouussiinngg
--  Diissppllaayy  sshhoowss  TDS,,  tteemppeerraattuurree,,  44  aallaarrmss,,  22  44--2200  mA Beeneeffiittss        --  Soolliidd  meettaall  Booiilleerr  Hoouussee  ssuurrvviivvoorr  hhoouussiinngg
--  Diissppllaayy  aass  nneeuuttrraalliizzeedd  TDS,,  oorr  nnoonn--nneeuuttrraalliizzeedd  TDS --  Ruuggggeedd  TDS  Seennssoorr  wiitthh  Exxpplloossiioonn  Prrooooff  Hoouussiinngg
--  TDS  ddiissppllaayy  uunniittss  aavvaaiillaabbllee  aarree  ppppm,,  mgg//LL,,  oorr  pppptt --  Raappiidd  aanndd  aaccccuurraattee  TDS,,  oorr  nnoonn--nneeuuttrraalliizzeedd  TDS
--  SCF  ffaaccttoorr  aaddjjuussttaabbllee  bbeettweeeenn  00..4400  --  11..1100 --  Eaassyy  ccaalliibbrraattiioonn  ––  iinn  aaiirr  aanndd  TDS  Sttaannddaarrddss
--  Eaassyy  ccaalliibbrraattiioonn  --  rreeccooggnniizzeess  ssttaannddaarrddss,,  hhoollddss  oouuttppuuttss --  Eaassyy  iinn  lliinnee  Sttaannddaarrddiizzee  ––  wiitthh  Grraabb  Saampplleess
--  Seellff--  aanndd  sseennssoorr  ddiiaaggnnoossttiiccss --  Oppeerraattiinngg  tteemppeerraattuurree  ttoo  220000°°C  ((339922°°F))  maaxxiimuum
--  44--2200  mA  oouuttppuuttss::  11  ffoorr  TDS,,  11  ffoorr  Teemppeerraattuurree --  Oppeerraattiinngg  pprreessssuurree  ttoo  22..88  MPaa  ((440000  ppssii))  maaxxiimuum
--  44--2200  mA  lliimiittss  ddiirreecctt  sseett  iinn  ppppm  oorr  mgg//ll  TDS --  Auuttoomaattiicc  tteemppeerraattuurree  ccoomppeennssaattiioonn
--  Foouurr  pprrooggrraammaabbllee  aallaarrmss  wiitthh  sseellff--  aanndd  sseennssoorr  aalleerrtt --  Coonnssttrruucctteedd  ooff  331166  SS,,  EDPM,,  aanndd  PEEK
--  ON--OFF  ccoonnttrrooll  aanndd//oorr  ppuumpp  ppuullsseerr  ccoonnttrrooll --  Diirreecctt  iinnsseerrttiioonn,,  33//44””  NPT  ssccrreew  iinn  ddeessiiggnn
--  TDS  sseett  ppooiinntt  uunniittss  ddiirreecctt  sseett  iinn  ppppm,,  mgg//LL,,  oorr  pppptt --  LLoow  maaiinntteennaannccee
--  Oppttiioonnaall  PIID  ccoonnttrrooll
--  Oppttiioonnaall  ccoommuunniiccaattiioonnss
Opttiion  1    501  Samplle  Coollerr Opttiion  2    TDS  Sttandarrds
Modell  501::  Samplle  Coollerr Beeneeffiittss          
--  Caalliibbrraattiioonn  iiss  eeaassyy,,  nnoo  lloonngg  ttiimee  ddeellaayy
Beneffiitts          --  33166  SS  Booiilleerr  Houusse  Cooollerr --  rraannggee  ooff  vvaalluueess  aavvaaiillaabbllee
--  Cooollss  hhiighh  tteempperraatturre  lliiqquiidss  tto  ssaffee  hhanndlliingg  Temp.. --  iinncclluuddeess  ttaabbllee  ooff  vvaalluueess  aatt  vvaarriioouuss  tteemppeerraattuurreess
--  Booiilleerr  waatterr,,  ffeeedd  watterr,,  sstteeam,,  cchhemiiccall  ssoolluttiioonss
--  Raapiidd  annd  accccuurraattee  TDS  grrabb  ssaampplleess   Caann  bbee  ttrraacceedd  ttoo  NIIST
--  Ennerrgyy  effffiicciienntt  ccoounntterr  fflloow  deessiignn --  A11110000224444    7700..11  ppppm  oorr  mgg//LL  aass  NaaCll  aatt  2255ººC
--  Eaassyy  ccoiill  rremovvaall  ffoorr  iinnsspeeccttiionn  oorr  ssccaalle  rreemoovvall --  A11110000224433    770000  ppppm  oorr  mgg//LL  aass  NaaCll  aatt  2255ººC
--  Saaffe  cconnttiinuuouuss  ssampllee  ttuubee  ffrrom  iinnlleett  tto  oouttlleett --  A11110000224422    77221177  ppppm  oorr  mgg//LL  aass  NaaCll  aatt  2255ººC
--  Opeerrattiinng  ttempeerraattuurree  ttoo  33166°°C  ((66000°°F))  maaxx.. --  A11110000224411    7744338800  ppppm  oorr  mgg//LL  aass  NaaCll  aatt  2255ººC
--  Opeerrattiinng  pprressssuurree  ttoo  200..77  MPa  ((330000  pssii))  maaxx..
--  1//22””  ccooolliinng  waatteerr  cconnneeccttiionnss,,  ffoorr  5  GPM Eqquuiivvaalleenntt  TDS  Sttaannddaarrddss  ffrroom  IIC  Coonnttrroollss::
--  Coonssttrruucctteed  ooff  33166  SS --  A11110000224455    4477  ppppm  oorr  mgg//LL  aass  NaaCll  aatt  2255ººC
--  6880  cccc//miinn  ((900  llb//hhrr))  waatterr --  A11110000224466    669922  ppppm  oorr  mgg//LL  aass  NaaCll  aatt  2255ººC
--  5225  cccc//miinn  ((700  llb//hhrr))  sstteaam --  A11110000224477    77223300    ppppm  oorr  mgg//LL  aass  NaaCll  aatt  2255ººC  
--  Loow  maaiintteenaanccee
--  Opttiioonaall  hiiggh  ttemp//prressssuurree  ssaampplle  tthrrottttlliinng  vvallvve
What  to  Order,,  for  Driinkiing  Water  Taste  moniitoriing  
and  Reverse  Osmosiis  permeate  Taste  moniitoriing  by  TDS
1    TDS  anallyzerr,,  210--C((TDS))--1--10--20 Recommended  opttiion::  TDS  Sttandarrds
1    TDS  sensorr,,  404--2..0
  210--C((TDS))::  Anallyyzzerr Modell  404--2..0::  TDS  Seenssorr,,  conducttiivviitty  baaseed
Beeneeffiittss          --  Soolliidd  mettaall  iinddussttrriiall  ssurvivo urvivo
rr  hooussiingg Beeneeffiittss          --  Ruuggggeedd  CPVC  sseennssoorr  bbooddyy
--  Diisspllayy  sshoowss  TDS,,  ttempperratturre,,  4  aallarrmss,,  22  4--200  mA --  Ruuggggeedd  TDS  Seennssoorr  wiitthh  ddiirreecctt  ccoonnnneecctt  wiirriinngg
--  Diisspllayy  TDS  iinn  unniittss  ooff  pppm,,  mgg//L,,  orr  ppptt --  Raappiidd  aanndd  aaccccuurraattee  TDS  rreeaaddiinnggss
--  SCF  ffaccttoorr  addjjussttaabllee  beettweeen  0..440  --  11..110 --  Eaassyy  ccaalliibbrraattiioonn  ––  iinn  aaiirr  oorr  TDS  ssttaannddaarrddss
--  Eassyy  ccaalliibbrraattiionn  --  rreccoognniizzess  ssttanndaarrddss,,  hholldss  ouuttpuuttss --  Eaassyy  iinn  lliinnee  Sttaannddaarrddiizzee  ––  wiitthh  ggrraabb  ssaampplleess
--  Sellff--  annd  ssennssorr  ddiiaagnnossttiiccss --  Teemppeerraattuurree  ttoo  7700°°C  ((115588°°F))  maaxx..  aatt  441144  kkPaa  ((6600ppssii))
--  44--220  mA  oouttpuuttss::  11  ffoorr  TDS,,  1  fforr  Tempperrattuurre --  Prreessssuurree  ttoo  11..22  MPaa  ((117755  ppssii))  maaxx..  aatt  3388°°C  ((110000°°F))
--  44--220  mA  lliimiittss  diirrecctt  ssett  iin  pppm  oorr  mgg//LL  TDS --  Siiggnnaall  lleeaadd  33  M  ((1100  Ftt))  iinncclluuddeedd;;  lloonnggeerr  aavvaaiillaabbllee
--  Foourr  prroogrrammabbllee  aallaarrmss  wiitthh  ssellff--  aandd  sseenssoorr  allerrtt --  Auuttoomaattiicc  tteemppeerraattuurree  ccoomppeennssaattiioonn
--  ON--OFF  ccoonttrroll  aandd//oorr  puumpp  ppullsserr  ccoonttrrooll --  Coonnssttrruucctteedd  ooff  ttiittaanniiuum,,  vviittoonn  aanndd  CPVC
--  TDS  ssett  pooiintt  unniittss  diirrecctt  ssett  iin  pppm,,  mgg//LL,,  oorr  ppptt --  Diirreecctt  iinnsseerrttiioonn,,  11””  NPT  ssccrreew  iinn  ddeessiiggnn
--  Oppttiionnall  PIID  ccoonttrroll --  LLoow  maaiinntteennaannccee
--  Oppttiionnall  ccoommuuniiccaattiionnss
29 Centennial Road  • Orangeville  Ontario L9W 1R1 •  Tel:(519)941-8161  •  Fax:(519)941-8164  •  1-800-265-9161
www.iccontrols.com •  [email protected]
TDS Contaminated Condensate Diversion or Recovery
BTU per lb. A 1 gallon per minute hot condensate trickling to
Recovery  of  otherwise  questionable  quality  TDS sewer  cost  about  $12000.00  in  heat  loss  per  year  
contaminated  condensate  can  be  easily  and  economically (1 gal/min x 8.33 lb/gal  x 60 min x 24 hr  x 365 d x 200
handled by a 210-C Analyzer and a 401-0.1 sensor plus a 3 BTU/lb)  x  14.00/106 BTU  ($90.00/bbl  oil)  =  approx
way solenoid valve. $12000.00.
Returning condensate can be (but may not be) contaminated Where  returning condensate may be contaminated so it goes
with untreated water  from heat  exchanger leaks or  process to sewer, use of a simple condensate monitoring system plus a
liquids and often goes to sewer. Hot condensate at 20 PSIG 3 way diversion solenoid valve can pay for itself in the first
compared to make up water at 60°F represents a loss of 200 year.
What  to  Order  for  Contamiinated  Condensate  Diiversiion
1    TDS  anallyzerr,,  210--C((TDS))--1--10--20 Recommended  opttiions::  TDS  Sttandarrds
1    TDS  sensorr,,  401--0..1 A9200000  Sensorr  Siignall  tto  Anallyzerr  Cablle
  210--C((TDS))::  Anallyzerr Modell  401--0..1::  TDS  Sensorr,,  ccond..  bassed
Beeneeffiittss          --  Soolliidd  mettaall  iinddussttrriiall  ssuurrvviivvoorr  hooussiingg Beeneeffiittss          --  Soolliidd  mettaall  Booiilleerr  Hooussee  ssuurrvviivvoorr  hooussiingg
--  Diisspllayy  sshoowss  TDS,,  ttempperratturre,,  4  aallarrmss,,  22  4--200  mA --  Rugggeed  TDS  Sennssorr  wiitth  Exxpplloossiionn  Prroooff  Hooussiingg
--  Diisspllayy  ass  TDS,,  uuniittss  avvaaiillaablle  arre  pppm,,  mgg//ll,,  oorr  ppptt --  Rappiid  aandd  aaccccurratte  TDS,,  oorr  noon--neeuttrraalliizzeed  TDS
--  SCF  ffaccttoorr  addjjussttaabllee  beettweeen  0..440  --  11..110 --  Eassyy  ccaalliibbrrattiioon  ––  iin  aiirr  annd  TDS  Sttanndaarrddss
--  Eassyy  ccaalliibbrraattiionn  --  rreccoognniizzess  ssttanndaarrddss,,  hholldss  ouuttpuuttss --  Eassyy  iinn  lliinne  ssttanndaarrddiizze  ––  wiitth  grrabb  ssaampplless
--  Sellff--  annd  ssennssorr  ddiiaagnnossttiiccss --  Opperraattiingg  tteempperratturre  tto  1550°°C  ((3002°°F))  maxxiimum
--  44--220  mA  oouttpuuttss::  11  ffoorr  TDS,,  1  fforr  Tempperrattuurre --  Opperraattiingg  prreessssurre  tto  22..88  MPa  ((44000  ppssii))  maxxiimum
--  44--220  mA  lliimiittss  diirrecctt  ssett  iin  pppm  oorr  mgg//LL  TDS --  Auuttomaattiicc  tteempperratturre  ccompeenssaattiionn
--  Foourr  prroogrrammabbllee  aallaarrmss  wiitthh  ssellff  annd  sseenssoorr  alleerrtt --  Connssttrruccttedd  off  3116  SS,,  VIITON,,  aandd  PEEK
--  ON--OFF  ccoonttrroll  aandd//oorr  puumpp  ppullsserr  ccoonttrrooll --  Diirreecctt  iinnsserrttiionn,,  33//44””  NPT  ssccrrew  iinn  deessiignn
--  TDS  ssett  pooiintt  unniittss  diirrecctt  ssett  iin  pppm,,  mgg//LL,,  oorr  ppptt --Loow  maiinttennanncce  
--  Oppttiionnall  PIID  ccoonttrroll
--  Oppttiionnall  ccoommuuniiccaattiionnss
Opttiion  1          TDS  Sttandarrds Opttiion  2    A9200000  Cablle  J--Box  tto  Anallyzerr
Beneffiitts          
--  Caalliibbrrattee  iiss  eeassyy,,  noo  llonng  ttiimee  deellayy Beeneeffiittss          
--  rraangge  off  vvallueess  aavvaiillabbllee --  Maannuuffaaccttuurreerrss  rreeccoommeennddeedd  ccaabbllee
--  iinncclluddess  ttabbllee  ooff  vvaalluuess  att  vvarriiouuss  tteempperratturress --  sshhiieellddeedd  sseennssoorr  ssiiggnnaall  ggeettss  bbaacckk  ttoo  aannaallyyzzeerr
--  pprrootteeccttiioonn  ffrroom  ssttrraayy  eelleeccttrriiccaall  nnooiissee
  Caan  bbe  ttrraaccedd  ttoo  NIIST --  rreelliiaabbllee  sseennssoorr  aanndd  aannaallyyzzeerr  ppeerrffoorrmaannccee
--  A1110002444    700..1  pppm  orr  mg//LL  aass  NaCll  att  255ººC --  wiirree  ssiizzee  ffiittss  tteerrmiinnaall  bblloocckkss
--  A1110002443    7000  pppm  oorr  mgg//LL  ass  NaaCll  att  255ººC --  uunnlliikkee  ttyyppiiccaall  1144  Gaaggee  ssoolliidd  wiirree,,  eeaassiillyy  maakkeess  ttuurrnnss
--  A1110002442    722177  pppm  orr  mg//L  aass  NaCll  aatt  225ººC --  lloow  maaiinntteennaannccee
--  A1110002441    7443880  pppm  oorr  mgg//LL  ass  NaaCll  att  255ººC --  aavvaaiillaabbllee  bbyy  tthhee  meetteerr  ((oorr  ffoooott)),,  ssppeecciiffyy  lleennggtthh  ddeessiirreedd
Equuiivvaallenntt  TDS  Sttaanddarrddss  ffrrom  IIC  Coonttrroollss::
--  A1110002445    477  pppm  orr  mg//L  aass  NaCll  aatt  225ººC
--  A1110002446    6992  pppm  oorr  mgg//LL  ass  NaaCll  att  255ººC
--  A1110002447    722300    pppm  oorr  mgg//L  ass  NaaCll  aatt  225ººC
© Copyright 2014 IC Controls Ltd.  All rights reserved.
Updated 2016-11-07
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