In-situ Aqua TROLL 500 User manual

2022-05-12 | 0050702
Operator's Manual
Aqua TROLL 500
Information subject to change without notice. In-Situ, In-Situ logo, Baro Merge, BaroTROLL, HERMIT, HydroVu™, iSitu,
Pocket-Situ, RDO, RuggedCable, RuggedReader, SmarTROLL™, TROLL, VuSitu, and Win-Situ are trademarks or registered
trademarks of In-Situ Inc.©2016. All rights reserved. This product may be covered by patents identied at www.in-situ.com/
patents

2
Contents
Introduction..................................................................................................................................................................................... 6
Serial Number Location............................................................................................................................................................ 6
Instrument Description............................................................................................................................................................ 6
Document Conventions........................................................................................................................................................... 6
Unpacking and Inspecting...................................................................................................................................................... 6
Obtaining Repair Service......................................................................................................................................................... 7
Guidelines for Cleaning Returned Equipment................................................................................................................. 8
Safety.................................................................................................................................................................................................. 9
Intended Use................................................................................................................................................................................ 9
Instrument Specications.........................................................................................................................................................10
External Power Source Requirements...............................................................................................................................10
Instrument Dimensions..........................................................................................................................................................11
Sensor Specications..................................................................................................................................................................12
Sensor Summary.......................................................................................................................................................................12
Solutions......................................................................................................................................................................................13
Potential Interferents ..............................................................................................................................................................14
RDO Cap Chemical Incompatibility ...................................................................................................................................14
Conductivity/Temperature Sensor ....................................................................................................................................14
Ammonium, Chloride, and Nitrate Interferent Concentrations ..............................................................................15
Instrument Components...........................................................................................................................................................24
Required Accessories..................................................................................................................................................................25
Communication Device..........................................................................................................................................................25
Cable .............................................................................................................................................................................................25
Sensors.........................................................................................................................................................................................25
Wireless TROLL Com................................................................................................................................................................25
Rugged Twist-Lock Cable ......................................................................................................................................................25
Software.......................................................................................................................................................................................26
Telemetry.....................................................................................................................................................................................26
System Components...................................................................................................................................................................27
1-970-498-1500 www.in-situ.com

3
Base Unit Components...........................................................................................................................................................27
Spot Checking Conguration..................................................................................................................................................31
Wireless TROLL Com................................................................................................................................................................31
Rugged Cable ............................................................................................................................................................................31
Aqua TROLL 500........................................................................................................................................................................31
Getting Started (Spot-Checking)............................................................................................................................................32
Unpack instrument..................................................................................................................................................................32
Install RDO cap and pH/ORP sensor. .................................................................................................................................32
Download and install software............................................................................................................................................32
Connect instrument to TROLL Com...................................................................................................................................32
Calibrate.......................................................................................................................................................................................32
Congure the instrument and take readings.................................................................................................................32
Connecting the TROLL Com.....................................................................................................................................................36
Pairing the Instrument with the VuSitu Mobile App.......................................................................................................36
Handling pH and Ion-Selective Electrode Sensors (ISEs)...............................................................................................37
Using the RDO Sensor and RDO Fast Cap ...........................................................................................................................37
Ion-Selective Electrode Sensor (ISE) Requirements.........................................................................................................38
Ammonium Sensor Requirements.....................................................................................................................................38
Chloride, Nitrate, and pH/ORP Sensor Requirements.................................................................................................38
LCD Screen......................................................................................................................................................................................39
Accessing the LCD Menu .......................................................................................................................................................39
Possible Port Statuses.............................................................................................................................................................39
Possible Power Statuses.........................................................................................................................................................39
Possible Connected Statuses ...............................................................................................................................................39
Error Messages ..........................................................................................................................................................................39
Calibrating Sensors......................................................................................................................................................................41
Solution-Based Calibration ...................................................................................................................................................41
Turbidity Sensor Calibration.................................................................................................................................................41
RDO 100% Saturation Calibration: Water Saturated Air .............................................................................................42
RDO 100% Saturation Calibration: Saturation Bubbler ..............................................................................................42
RDO Salinity Setting ................................................................................................................................................................43
1-970-498-1500 www.in-situ.com

4
Zeroing the Depth Sensor.....................................................................................................................................................46
Navigating VuSitu ........................................................................................................................................................................48
VuSitu Mobile App...................................................................................................................................................................48
Connected Instrument Screen.............................................................................................................................................48
VuSitu Menu Options..............................................................................................................................................................49
Selecting with Long-press and Swipe...............................................................................................................................49
Live Readings in VuSitu..............................................................................................................................................................50
Snapshot Mode.........................................................................................................................................................................50
Live Readings Mode ................................................................................................................................................................50
VuSitu Data.....................................................................................................................................................................................51
Sharing Data...............................................................................................................................................................................51
Viewing Data on a Mac or PC...............................................................................................................................................51
VuSitu Locations...........................................................................................................................................................................52
About VuSitu Locations..........................................................................................................................................................52
How to Create a Location ......................................................................................................................................................52
How to Select a Location.......................................................................................................................................................53
How to Edit or Delete a Location........................................................................................................................................53
Remote-Monitoring Conguration (Telemetry) ...............................................................................................................54
Connecting to Win-Situ on a PC .............................................................................................................................................56
Connecting to Win-Situ via USB..........................................................................................................................................56
Navigating the Win-Situ Interface..........................................................................................................................................57
Home Tab ....................................................................................................................................................................................57
Sensor Tab...................................................................................................................................................................................57
Device Setup Tab ......................................................................................................................................................................58
Connecting the Aqua TROLL 500 to a PLC or Data Logger...........................................................................................59
Modbus PLC Interface ................................................................................................................................................................62
Care and Maintenance ...............................................................................................................................................................65
Maintenance Schedule...........................................................................................................................................................65
User-Serviceable Parts............................................................................................................................................................65
Storage.........................................................................................................................................................................................65
Cleaning the Sonde .................................................................................................................................................................66
1-970-498-1500 www.in-situ.com

5
Cleaning and Storing the pH/ORP Sensor.......................................................................................................................66
Cleaning and Storing the RDO Sensor..............................................................................................................................68
Cleaning and Storing the Conductivity Sensor.............................................................................................................69
Cleaning and Storing the Turbidity Sensor.....................................................................................................................70
More Information.........................................................................................................................................................................71
Appendix ........................................................................................................................................................................................73
Appendix A: Parameter Discovery......................................................................................................................................73
Appendix B: Parameter Numbers and Locations..........................................................................................................74
Appendix C: Unit IDs ...............................................................................................................................................................77
Appendix D: Register Data Formats...................................................................................................................................80
1-970-498-1500 www.in-situ.com

6
Introduction
The instrument serial number is on the product label axed to the instrument body. Serial numbers for
individual sensors are engraved on the sensor body.
Your equipment was carefully inspected before shipping. Check the equipment for any physical damage
sustained during shipment. Notify In-Situ and le a claim with the carrier if there is any such damage; do not
attempt to deploy or operate the instrument.
Throughout this document you will see the following symbols:
Accessories may be shipped separately and should be inspected for physical damage and order fulllment.
A checkmark highlights a tip or feature.
Save packing materials for future storage and shipping of your equipment.
The exclamation point calls your attention to a requirement, safety issue, or important action
that should not be overlooked.
The Aqua TROLL 500 uses the latest sensor and electronics technology to provide laboratory-quality
measurements for eld use. Parameters include water level, pH, dissolved oxygen, and more. The instrument
ts inside wells as small as 2”in diameter. The water level/pressure sensor and barometric pressure sensor
are integrated into the sonde. Additional sensors may be selected and replaced to suit your project’s needs.
An optional motorized sensor wiper may also be included on the instrument.
Use the Aqua TROLL 500 for long-term monitoring in freshwater and marine environments. It’s also ideal for
the following applications:
• Groundwater sampling
• Low-ow testing
• Mine water monitoring
• Stormwater management
The built-in LCD screen displays battery status, connectivity info, and other vital information. Setup is easy
with the VuSitu app and a Bluetooth-enabled mobile device. The Aqua TROLL 500 works with external PLCs
and works with telemetry devices for remote monitoring.
Serial Number Location
Instrument Description
Document Conventions
Unpacking and Inspecting
1-970-498-1500 www.in-situ.com

7
Obtaining Repair Service
If you suspect your system is malfunctioning and repair is needed, you can help assure ecient servicing by
following these guidelines:
1 Call or email In-Situ Technical Support. Have the product model and serial number available.
2 Be prepared to describe the problem, including how the product was used and the conditions noted
at the time of the malfunction.
3 If Technical Support determines that service is needed, they will ask your company to ll out the RMA
form and pre-approve a specied monetary amount for repair charges. When the form and pre-approval
is received, Technical Support will assign an RMA (Return Material Authorization) number.
4 Clean the product as described in the manual.
5 If the product contains a removable battery, remove and retain it unless you are returning the system
for a refund or Technical Support states otherwise.
6 Carefully pack your product in its original shipping box, if possible.
7 Mark the RMA number clearly on the outside of the box.
8 Send the package, shipping prepaid, to:
In-Situ:
ATTN: Repairs
221 East Lincoln Avenue
Fort Collins, CO 80524
The warranty does not cover damage during transit. In-Situ recommends insurance for all shipments.
Warranty repairs will be shipped back prepaid.
Outside the U.S.
Contact your international In-Situ distributor for repair and service information.
1-970-498-1500 www.in-situ.com

8
Guidelines for Cleaning Returned Equipment
Please help us protect the health and safety of our employees by cleaning and decontaminating
equipment that has been subjected to potential biological or health hazards, and labeling such equipment.
Unfortunately, we cannot service your equipment without such notication. Please complete and sign the
form (or a similar statement certifying that the equipment has been cleaned and decontaminated) and send
it to us with each instrument.
If an instrument is returned to our Service Center for repair or recalibration without a
statement that it has been cleaned and decontaminated, or if it is the opinion of our Service
Representatives that the equipment presents a potential health or biological hazard, we
reserve the right to withhold service until proper certication is obtained.
1 We recommend cleaning with only mild soaps that are compatible with the product materials.
Wetted materials lists are provided on the product specication sheets. Clean all cables and remove all
foreign matter.
2 Clean the cable connectors with a clean, dry cloth. Do not submerge the connectors.
3 Clean the instrument including the nosecone, cable head, and protective caps.
Decontamination & Cleaning Statement
Company Name Phone
Address
City State
Instrument Type Serial Number
Contaminant(s) if known)
Decontamination procedure(s) used
Cleaning veried by Title
Date
1-970-498-1500 www.in-situ.com

9
Safety
• Do not use the Aqua TROLL 500 in any manner not specied by the manufacturer.
• Do not submerge the Wireless TROLLCom or your mobile device in liquid.
• Do not submerge the Twist-Lock connector ends of the cable or instrument when they are not connected.
• Ensure that sensors, or sensor plugs, are completely inserted into the ports, so that no liquid can enter the
instrument.
• Ensure that the RDO Sensor Cap is pressed rmly over the sensor lens and is ush with the instrument
before submerging in liquid.
• Replace the cable if insulation or connectors are damaged.
• Make sure the probe and sensor O-rings are clean and free of damage.
Read the safety information on this page before deploying or conguring your Aqua TROLL
500. If you have questions, contact In-Situ Technical Support for assistance.
If the equipment is used in a manner not specied by the manufacturer, the protection
provided by the equipment may be impaired.
Intended Use
The Aqua TROLL 500 multiparameter sonde is designed to be safe:
• during indoor or outdoor use;
• when used at altitudes up to 2000m;
• in ambient temperatures from -5 to 50C;
• in any relative humidity levels;
• during transient voltages up to the levels of Overvoltage Category III.
1-970-498-1500 www.in-situ.com

10
Instrument Specications
Operating temperature -5° to 50° C (23° to 122° F)
Storage temperature Components without uid: -40° to 65° C (-40° to149°F)
pH/ORP probes: -5° to 65°C
Dimensions
Length: 46 cm (18.145") (includes connector)
Diameter: 4.7 cm (1.860")
With bail: 59cm (23.25")
Weight 0.978kg / 2.15 lbs. (includes instrument, sensors, restrictor and
bumpers)
Wetted materials (sonde and
sensors)
PC, PC alloy, Delrin, Santoprene, Inconel, Viton, Titanium, Platinum,
Ceramic, Nylon, PVC, Graphite
Environmental rating
IP68 with all sensors and cable attached. IP67 with
sensors removed, battery cover removed, or cable
detached
Max pressure rating Up to 150 PSI
Ammonium/Nitrate up to 30PSI
Communication RS485/MODBUS, Wireless TROLL Com, Bluetooth®
Reading rate 1 reading every 2 seconds
LCD screen
Integrated display shows status of sonde, sensor ports, power voltage
and connectivity. BlueTooth may be disabled through the hidden
menu
External power voltage
External power current1
8-36 VDC (required for normal operation)
Sleep:< 0.2 mA typical
Measurement:40 mA typical, 75 mA Max
Interface Win-Situ 5 Software, VuSitu Mobile App on select
mobile devices using Android 4.4 with Bluetooth 2.0
Cable Vented or non-vented polyurethane or vented Tefzel®
Hex screw driver 0.050 in. (1.3 mm)
Software
Android: VuSitu through Google Play
Windows: Win-Situ 5
Data Services: HydroVu
Interface Android 4.4, requires BlueTooth 2.0
Certications CE, FCC, WEEE, RoHS Compliant
Current from an external power source must not exceed 4 amps.
External Power Source Requirements
1-970-498-1500 www.in-situ.com

11
Instrument Dimensions
18.125”
2.04”
1.85”
16.35”
1-970-498-1500 www.in-situ.com

12
Sensor Specications
Sensor Summary
Sensors Expected Lifetime* Recommended
Calibration Frequency
Pressure
Rating - PSI Usable Depth
Operational
Temperature
Range
pH/ORP 2 years or greater** 10 to 12 weeks** 350 200 650 - 5 to 50° C
RDO 2 years or greater 12 months** 350 200 650 - 5 to 50° C
Conductivity 2 years or greater User calibration only if
needed 350 200 650 - 5 to 50° C
Temperature 2 years or greater NA 350 200 650 - 5 to 50° C
Turbidity 2 years or greater User calibration only if
needed 350 200 650 - 5 to 50° C
Pressure 2 years or greater User calibration only if
needed
12.8
42.7
108
285
9
30
76
200
30
100
250
650
- 5 to 50° C
Barometric
Pressure 2 years or greater User calibration only if needed NA NA NA - 5 to 50° C
Ammonium 6 to 12 months** Monthly** 30 25 70 0 to 40° C
Chloride 1 year or greater** Monthly** 350 200 650 0 to 50° C
Nitrate 6 to 12 months** Monthly** 30 25 70 0 to 40° C
Chlorophyll a 2 years or greater User calibration only if
needed 350 200 650 - 5 to 50° C
BGA-PC 2 years or greater User calibration only if
needed 350 200 650 - 5 to 50° C
BGA-PE 2 years or greater User calibration only if
needed 350 200 650 - 5 to 50° C
Rhodamine 2 years or greater User calibration only if
needed 350 200 650 - 5 to 50° C
Fluorescein 2 years or greater User calibration only if
needed 350 200 650 - 5 to 50° C
FDOM 2 years or greater User calibration only if
needed 350 200 650 - 5 to 50° C
Crude OIl 2 years or greater User calibration only if
needed 350 200 650 - 5 to 50° C
* Expected lifetime includes total shelf life and deployment lifetime.
** Lifetime and calibration frequency depend on site and storage conditions.
1-970-498-1500 www.in-situ.com

13
Solutions
Solution Shelf Life - Unopened Shelf Life - Opened
Quick Cal 4 months. Store in a cool, dark place. Shake
before use.
7 to 21 days (±10 mV, ±0.05 pH,
±50 S/cm)
ZoBell’s 9 months. Store in a cool, dark place. 3 to 6 months
Low Conductivity (147
S/cm) 12 months Hours (±1 S/cm, check before use)
Other Conductivity 12 months 3 to 6 months
pH Calibration Buers 24 months 3 to 6 months
Sensor Reference Filling
Solution 24 months 12 months
pH Storage Solution 24 months 12 months
Sodium Sulte 12 months 3 to 6 months
Turbidity 12 months 12 months from expiration date
Deionized Water 24 months Hours, check before use for
calibration
Ammonium 12 months 3 to 6 months
Chloride 12 months 3 to 6 months
Nitrate 12 months 3 to 6 months
1-970-498-1500 www.in-situ.com

14
Potential Interferents
RDO Cap Chemical Incompatibility
Conductivity/Temperature Sensor
pH
Sodium salts
Dissolved Oxygen
Temperature, atmospheric pressure, salinity,
chlorinity
Ammonium
Cesium, Potassium, Thallium, pH, Silver, Lithium,
Sodium
Nitrate
Perchlorate, Iodide, Chlorate, Cyanide, Bromide,
Nitrite, Hydrogen Sulde (bisulte), Hydrogen
Carbonate
(bicarbonate), Carbonate, Chloride, Dihydrogen
Phosphate, Hydrogen Phosphate, Phosphate,
Acetate, Fluoride, Sulfate
Conductivity
Temperature
ORP
Ions that are stronger reducing agents than
hydrogen or platinum, e.g., chromium, vanadium,
titanium, etc.
Chloride
Hydroxide, Ammonia, Thiosulfate, Bromide, Sulde,
Iodide, Cyanide
BGA-PC, BGA-PE, Chlorophyll a, Rhodamine WT
Turbidity
The following chemicals will damage the RDOsensing element.
Soaking the Conductivity/Temperature sensor in vinegar for longer than one hour can cause
serious damage.
• Alcohols > 5%
• Hydrogen peroxide > 3%
• Sodium hypochlorite (commercial bleach) > 3%
• Gaseous sulfur dioxide
• Gaseous chlorine
• Do not use in organic solvents (e.g., acetone, chloroform, methylene chloride, etc.), which may destroy
the sensing element
1-970-498-1500 www.in-situ.com

15
Ammonium
Chloride
Nitrate
The table below lists concentrations of possible interfering ions that cause 10% error at various levels (in
ppm) of NH4
+.
The table below lists concentrations of possible interfering ions that cause 10% error at various levels (in
ppm) of Cl-.
The table below lists concentrations of possible interfering ions that cause 10% error at various levels (in
ppm) of N03
-.
Ion 100 ppm NH4
+10 ppm NH4 +1 ppm NH4 +
Celsium (Cs+) 100 10 1
Potassium (K+) 270 27 2.7
Thallium (TI+) 3100 310 31
pH (H+) pH 1.6 pH 2.6 pH 3.6
Silver (Ag+) 270,000 27,000 2,700
Lithium (Li+) 35,000 3,500 350
Sodium (Na+) 11,100 1,100 110
Ion 100 ppm Cl-10 ppm Cl-1 ppm Cl-
Hydroxide (OH-) 3,840 384 38.4
Ammonia (NH3) 6 0.6 0.06
Thiosulfate (S2O3
2-) 3 0.3 0.03
Bromide (Br-) 0.68 0.068 6.8 x 10-3
Sulde (S2-) 9 x 10-5 9 x 10-6 9 x 10-7
Iodide (I-) 1.8 x 10-4 1.8 x 10-5 1.8 x 10-6
Cyanide (CN-) 1.5 x 10-5 1.5 x 10-6 1.5 x 10-7
Ion 100 ppm NO3
-10 ppm NO3 -1 ppm NO3 -
Perchlorate (CIO4
-) 7 x 10-2 7 x 10-3 7 x 10-4
Iodide (I-) 4 0.4 0.04
Chlorate (CIO3
-) 30 3 0.3
Cyanide (CN-) 20 2 0.2
Bromide (Br-) 400 40 4
Nitrite (NO2
-) 230 23 2
Hydrogen Sulde (HS-) 230 23 2
Ammonium, Chloride, and Nitrate Interferent Concentrations
1-970-498-1500 www.in-situ.com

16
Bicarbonate (HCO3
-) 440 440 44
Carbonate (CO3
2-) 8,600 860 86
Chloride (CI-) 7,600 760 76
Dihydrogen Phosphate
(H2PO4
-)34,640 3,464 346
Hydrogen Phosphate
(HPO4
2-)34,300 3,430 343
Phosphate (PO4
3-) 33,900 3,390 339
Acetate (OAc-) 104,200 10,420 1,042
Fluoride (F-) 81,400 8,140 814
Sulfate (SO4
2-) 685,700 68,570 6,857
Barometric Pressure Sensor Specications
Conductivity Sensor Specications
Accuracy ±1.0 mbar
Range 300 to 1,100 mbar
Resolution 0.1 mbar
Sensor Type Fixed
Response Time T63<1s, T90<1s, T95<1s
Units of Measure psi, kPa, bar, mbar, mmHg, inHg
Methodology Silicon strain gauge
Accuracy
±0.5% of reading plus 1 S/cm from 0 to 100,000
S/cm;±1.0% of reading from 100,000 to 200,000
S/cm; ±2% of reading from 200,000 to 350,000 µS/
cm
Range 0 to 350,000 S/cm
Resolution 0.1 µS/cm
Sensor Type Removeable
Response Time T63<1s, T90<3s, T95<5s
Units of Measure
Actual conductivity: S/cm, mS/cm Specic
conductivity: S/cm, mS/cm Salinity: PSU
Total dissolved solids: ppt, ppm Resistivity: Ohms-
cm
Density: g/cm3
Methodology Std. Methods 2510, EPA 120.1
*Accuracy at calibration points. For greatest accuracy over instrument life, keep the conductivity cell submersed in water for 24-48
hours prior to calibration and deployment.
1-970-498-1500 www.in-situ.com

17
Total Dissolved Solids
Salinity
TDS is derived from conductivity and temperature.
TDS is derived from conductivity and temperature.
Range 0 to 350 ppt
Resolution 0.1 ppt
Units of Measure ppt, ppm
Range 0 to 350 PSU
Resolution 0.1 PSU
Units of Measure PSU, ppt
Methodology Std. Methods 2520A
Accuracy ±0.1 mg/L from 0 to 8 mg/L
±2% of reading from 20 to 50 mg/L
Range 0 to 20 mg/L
20 to 60 mg/L
Resolution 0.01 mg/L
Sensor Type Removable with replaceable RDO-X Cap
Response Time RDO-X Cap: T63<15s, T90<45s, T95<60s
Fast Cap: T63<3s, T90<30s, T95<45s
Units of Measure mg/L, % saturation, ppm
Methodology
EPA-approved In-Situ Methods (under the Alternate
Test Procedure process): 1002-8-2009, 1003-8-2009,
1004-8-2009
Accuracy Typical ±0.1% full scale (FS)
Range
Non-vented or Vented
9.0 m (30 ft) - Burst: 27 m (90 ft) 30 m (100 ft) - Burst:
40 m (130 ft) 76 m (250 ft) - Burst: 107 m (350 ft) 200
m (650 ft) - Burst: 229 m (750 ft)
Resolution ±0.01% FS or better
Sensor Type Fixed
Response Time T63<1s, T90<1s, T95<1s
Dissolved Oxygen RDO Sensor Specications
Level, Depth, Pressure Sensor Specications
1-970-498-1500 www.in-situ.com

18
Units of Measure Pressure: psi, kPa, bar, mbar, mmHg, inHg, cmH2O,
inH2O Level: mm, cm, m, in, ft, cmH2O, inH2O
Methodology Piezoresistive; ceramic
*Typical performance across full temperature and pressure calibrated range. Typical is dened as all values
within 1 standard deviation.
*At thermal equilibrium.
*Accuracy from standard at 25° C.
**At thermal equilibrium immediately following calibration, measuring from air to +400 mV
ORP Sensor Specications
pH Sensor Specications
Accuracy ±5.0 mV @ 25° C
Range ±1,400 mV
Resolution 0.1 mV
Sensor Type Replaceable pH/ORP combo sensor
Response Time** T63<3s, T90<15s, T95<30s
Units of Measure mV
Methodology Std. Methods 2580
Accuracy ±0.1 pH units or better
Range 0 to 14 pH units
Resolution 0.01 pH unit
Sensor Type Replaceable pH/ORP combo sensor
Response Time** T63<1s, T90<2s, T95<3s
Units of Measure pH units
Methodology Std. Methods 4500-H+, EPA 150.2
Temperature Sensor Specications
Accuracy ±0.1° C
Range -5 to 50° C (23 to 122° F)
Resolution 0.01° C
Sensor Type Replaceable
Response Time** T63<2s, T90<15s, T95<30s
1-970-498-1500 www.in-situ.com

19
Sensor only, when transferring from air to ambient water temperature. Typical system response time with all
sensors and restrictor installed: T63<30s; T90<3.5m; T95,7.5m
Turbidity Sensor Specications
Accuracy ±2% of reading or ±0.5 NTU or FNU, whichever is
greater
Range 0 to 4,000 NTU
Resolution 0.01 NTU (0 to 1,000 NTU) 0.1 NTU (1,000 to 4,000
NTU)
Sensor Type Replaceable
Response Time** T63<1s, T90<1s, T95<1s
Units of Measure NTU, FNU
Methodology ISO 7027
Total Suspended Solids
Ammonium Sensor Specications
TSS is derived from turbidity.
*Between calibration points.
User-dened reference.
Range 0 to 1,500 mg/L
Resolution 0.1 mg/L
Units of Measure ppt, mg/L
Accuracy ±10% or ± 2 mg/L, whichever is greater
Max Depth 25 m, 30 PSI
Range 0-10,000 mg/L as N
Resolution 0.01 mg/L
Sensor Type Removable
Response Time* T90 < 10sec, T95 < 30sec
Units of Measure mg/L, ppm, mV
Methodology Std. Methods 4500-NH3D, EPA 350.3
Units of Measure ° C, ° F
Methodology EPA 170.1
1-970-498-1500 www.in-situ.com

20
Ammonia (Unionized Ammonia and Total Ammonia)
Ammonia is derived from ammonium, pH and salinity. pH sensor and
conductivity/temperature sensor required.
* Between calibration points.
* Between calibration points.
Range 0 to 10,000 mg/L
Resolution 0.01 mg/L
Units of Measure mg/L, ppm
Chloride Sensor Specications
Nitrate Sensor Specications
Chlorophyll a Sensor Specications
Accuracy ±10% or ±2 mg/L, w.i.g.*
Range 0-190,000 mg/L - CL-
Resolution 0.01 mg/L
Sensor Type Removable
Response Time* T90 <10sec, T95 < 30sec
Units of Measure mg/L, ppm, mV
Methodology Std. Methods 4500-Cl-D
Accuracy ±10% or ±2 mg/L, w.i.g.*
Max Depth 25 m, 30 PSI
Range 0-50,000 mg/L as N
Resolution 0.01 mg/L
Sensor Type Removable
Response Time* T90 <10sec, T95 < 30sec
Units of Measure mg/L, ppm, mV
Methodology Std. Methods 4500-NO3D
Linearity R2 > 0.999 for serial dilutions of 0-1000 µg/L Chl a in
MeOH
Max Depth 200 m
1-970-498-1500 www.in-situ.com