Trimeter: Water Quality Probe

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Solinst Eureka
2113 Wells Branch Pkwy, Suite 4400
Austin, TX, USA
78728

Tel: +1 512-302-4333
Fax: +1 512-251-6842
email: [email protected]

Trimeter

Three Parameters at
the Lowest Possible Cost

Solinst Field Services

 

 

 

Safeguard your project’s success and mitigate any potential for downtime or additional costs.

 

 

solinst eureka trimeter water quality probes

5001 Trimeter Water Quality Probe

Trimeter

Model 5001

The Trimeter is Solinst Eureka’s most compact multiprobe. The Trimeter incorporates the field-proven electronics of Solinst Eureka’s premier Manta+ multiprobes, with a smaller, lightweight instrument body. The Trimeter offers a powerful and affordable solution for water quality monitoring.

Select any one of Solinst Eureka’s water quality sensors (excluding ISEs, PAR, and CO2), and add temperature and/or depth (vented or nonvented) sensors. (Note that temperature is included for Trimeters with conductivity, pH, or DO sensors).

The Trimeter is an excellent choice when you need a self-powered probe for autonomous turbidity logging. For example, choose wipered turbidity with temperature and depth, or turbidity and temperature
sensors only.

Trimeters are also ideal for use in dye-trace studies, equipped with Rhodamine, Fluorescein, or other custom dye sensors from Solinst Eureka.

Use the Trimeter with Solinst Eureka’s MantaLink™ app for iOS or Android™, or Windows for the PC (data cable or USB adapter not included). 

What are the Benefits of the Trimeter?

  • Cost-Effective: Measure three parameters at a lower cost.
  • Flexible Deployment: Use it for spot checking, logging, or connection to data stations/telemetry.
  • Turbidity Logging: Sensor with built-in wiper, excellent for autonomous turbidity monitoring
  • Easy to Use: Features LED diagnostic status indicators.
  • Real-time Data: Connect to a powered data station via RS-232, or optional SDI-12 or MODBUS, or view on your smart device with MantaLink.
  • Durable: Small, rugged, and lightweight design with a robust marine connector.
  • Versatile: Compatible with all Solinst Eureka software apps (Windows, iOS, and Android) and communication cables.
  • Reliable: 3 year limited warranty covers all components, including sensors
solinst eureka trimeter water quality sonde being used in the field to monitor water quality

Applications Suited to the Trimeter

The Trimeter is as versatile as the flagship Manta+ multiprobe line when it comes to applications variety, including:

  • Environmental Monitoring: Long-term monitoring to track water quality changes, assessing impacts of runoff, tracking saltwater intrusion, etc.
  • Surface Water and Groundwater Sampling: Routine water quality checks and assessing aquifer
    health.
  • Industrial Discharge Monitoring: Ensuring compliance and the effectiveness of treatment processes.
  • Aquaculture: Maintaining optimal water quality conditions for fish and shellfish farming.
    Water and Wastewater Treatment: Optimizing treatment processes and ensuring the quality of treated water.
  • Stormwater Runoff Monitoring: Tracking water quality impact and measuring the effectiveness of stormwater management practices.
  • Dredging Operations: Monitoring turbidity to ensure compliance and to protect aquatic habitats.
  • Mining Operations: Monitoring the impact of mining activities on water quality.
    Research and Education: Conducting water quality research projects.

 

Flexible Comunications and Accessories

Underwater cables and data cables connect to the robust marine connector on the Trimeter. Underwater cables are available in lengths from 3 to 200 meters. Add an optional battery pack for self-powered logging. Use the mantaMobile™ to provide a Bluetooth® connection to the MantaLink app on your mobile device. Soft and hard carry cases, flow cells, and an anti-fouling sensor guard are also options.

Trimeter Specifications

Diameter (OD):
Without external battery pack:
1.95 inch (5 cm)
With external battery pack:
2.95 inch (7.5 cm)
Length:
Without battery pack:
14 inch (36 cm)
With internal battery pack:
24.5 inch (62 cm)
With external battery pack:
23 inch (58 cm)
Weight:
Without battery pack:
1.4 lbs (0.64 kg)
With internal battery pack (with batteries):
2.4 lbs (1.1 kg)
With external battery pack:
3.7 lbs (1.7 kg)
Battery pack options:
Internal:
Holds three 1.5 VDC D size replaceable alkaline batteries
External:
Attachable rechargeable Li-ion battery
Battery Life:
Logging time dependent on number of sensors, logging interval and temperature
Operating Temperature:
-5ºC to 50ºC
Maximum # Readings:
4 Mbytes for logged data, greater than 1,000,000 readings

Trimeter Sensor Specifications

Sensor
Parameter
Range & Units
Resolution
Accuracy
Comments
temperature
temperature
-5 to 50ºC
0.01
±0.1
Calibration not required
Sensor
Parameter
Range & Units
Resolution
Accuracy
Comments
pH/ORP
pH
0 to 14 units
0.01
±0.1 within 10ºC of calibration; or 0.2 otherwise
Refillable reference electrode; corrected for temperature; typical sensor life greater than 6 years; optional ORP sensor is combined with pH sensor
pH/ORP
ORP
-999 to 999 mV
0.1
±20 mV
Refillable reference electrode; corrected for temperature; typical sensor life greater than 6 years; optional ORP sensor is combined with pH sensor
Sensor
Parameter
Range & Units
Resolution
Accuracy
Comments
conductivity
specific conductance μS/cm
0 to 5000 μS/cm
0.1
±0.5% of reading or ±1 w.i.g.
Corrected for temperature; four easy-to-clean graphite electrodes; optional sensor provides ±0.5% of reading accuracy to 100 mS/cm.
conductivity
specific conductance, mS/cm
0 to 100 mS/cm
0.001
±1% of reading ±0.001
Corrected for temperature; four easy-to-clean graphite electrodes; optional sensor provides ±0.5% of reading accuracy to 100 mS/cm.
conductivity
specific conductance, mS/cm
100 to 275 mS/cm
0.001
±2% of reading
Corrected for temperature; four easy-to-clean graphite electrodes; optional sensor provides ±0.5% of reading accuracy to 100 mS/cm.
conductivity
salinity
0 to 70 PSU
0.01
±2% of reading
Corrected for temperature; four easy-to-clean graphite electrodes; optional sensor provides ±0.5% of reading accuracy to 100 mS/cm.
conductivity
total dissolved solids (TDS)
0 to 65 g/l
0.1
±5% of reading
Calculated from conductivity and temperature, PSU is equivalent to ppt
Sensor
Parameter
Range & Units
Resolution
Accuracy
Comments
dissolved oxygen (optical sensor)
concentration
0 to 20 mg/l
0.01
±0.1
Compensated for temperature and salinity; EPA approved - lifetime - luminescence method; typical sensor cap life greater than 6 years
dissolved oxygen (optical sensor)
concentration
20 to 30 mg/l
0.01
±0.15
Compensated for temperature and salinity; EPA approved - lifetime - luminescence method; typical sensor cap life greater than 6 years
dissolved oxygen (optical sensor)
concentration
30 to 50 mg/l
0.01
±5% of reading
Compensated for temperature and salinity; EPA approved - lifetime - luminescence method; typical sensor cap life greater than 6 years
dissolved oxygen (optical sensor)
% saturation
0 to 500% saturation
0.1
corresponds with the accuracy of the concentration reading
Compensated for temperature and salinity; EPA approved - lifetime - luminescence method; typical sensor cap life greater than 6 years
Sensor
Parameter
Range & Units
Resolution
Accuracy
Comments
turbidity
turbidity
0 to 1000 FNU
0.01
±0.3 FNU or ±2% of reading w.i.g.
Filtered for non-turbidity spikes; includes wiper to clean the optics; FNU and NTU are interchangeable
turbidity
turbidity
1000 to 4000 FNU
0.01
±4% of reading
Filtered for non-turbidity spikes; includes wiper to clean the optics; FNU and NTU are interchangeable
Sensor
Parameter
Range & Units
Resolution
Accuracy
Comments
pressure
depth
0 to 25 m
0.01
±0.05
Compensated for temperature and salinity
pressure
depth
0 to 200 m
0.01
±0.4
Compensated for temperature and salinity
pressure
vented depth
0 to 10 m
0.001
±0.003
Compensated for temperature, salinity, and barometric pressure
pressure
barometric pressure
400 to 900 mm Hg
0.1
±1.5
Included with depth sensor
Sensor
Parameter
Range & Units
Resolution
Accuracy
Comments
total dissolved gas (TDG)
total dissolved gas (TDG)
400 to 1,400 mm Hg
0.1
±1
Compensated for temperature; maximum depth 15 m
Sensor
Parameter
Range & Units
Resolution
Accuracy
Comments
fluorometers
chlorophyll a - blue
0 to 100 μg/l
0.01
linearity of 0.99 R²
Highest-quality fluorometric sensors, custom optics available upon request
fluorometers
chlorophyll a - red
0 to 500 μg/l
0.01
linearity of 0.99 R²
Highest-quality fluorometric sensors, custom optics available upon request
fluorometers
rhodamine dye
0 to 200 ppb
0.01
linearity of 0.99 R²
Highest-quality fluorometric sensors, custom optics available upon request
fluorometers
Phycocyanin (freshwater BGA)
0 to 4500 ppb
0.01
linearity of 0.99 R²
Highest-quality fluorometric sensors, custom optics available upon request
fluorometers
Phycoerythrin (marine BGA)
0 to 700 ppb
0.01
linearity of 0.99 R²
Highest-quality fluorometric sensors, custom optics available upon request
fluorometers
CDOM/FDOM
0 to 500 ppb
0.01
linearity of 0.99 R²
Highest-quality fluorometric sensors, custom optics available upon request
fluorometers
optical brightener
0 to 300 ppb
0.01
linearity of 0.99 R²
Highest-quality fluorometric sensors, custom optics available upon request
fluorometers
tryptophan
0 to 5000 ppb
0.01
linearity of 0.99 R²
Highest-quality fluorometric sensors, custom optics available upon request
fluorometers
fluorescein dye
0 to 150 ppb
0.01
linearity of 0.99 R²
Highest-quality fluorometric sensors, custom optics available upon request
fluorometers
PTSA
0 to 650 ppb
0.01
linearity of 0.99 R²
Highest-quality fluorometric sensors, custom optics available upon request
fluorometers
refined oil
0 to 20 ppm
0.01
linearity of 0.99 R²
Highest-quality fluorometric sensors, custom optics available upon request
fluorometers
crude oil
0 to 300 ppb
0.01
linearity of 0.99 R²
Highest-quality fluorometric sensors, custom optics available upon request

For best accuracy, always calibrate near the anticipated field readings, and near the temperature of the anticipated field readings.
CAUTION: Never look directly at a fluorometer sensor. The UV rays emitted by the sensor can cause eye damage.

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