Aqua TROLL 400 Multiparameter Water Quality Instrument

Reference: AquaTROLL-400
Brand: In-Situ

The Aqua TROLL 400 Multiparameter Water Quality Instrument is ideal for long-term groundwater and surface-water applications.

Using In-Situ’s patented, EPA-approved RDO® Technology, this compact instrument houses six water quality sensors capable of recording 12 parameters: actual and specific conductivity; salinity, total dissolved solids, resistivity and density; dissolved oxygen (RDO); ORP and pH; temperature; and water level and water pressure (absolute).

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AquaTROLL-400

Torn between two models?

Accuracy — conductivity ±0.5%+1µS/cm typical; ±1% max. range
Accuracy — level/depth/pressure ±0.1% full scale (FS) @ 15° C; ±0.3% FS max. from 0-50° C
Accuracy — ORP ±5.0 mV
Accuracy — pH ±0.1 pH unit
Accuracy — temperature ±0.1 °C
Power supply 8-36 VDC (no internal battery)

Overview

Confidence in your data

Field-tested sensor technologies lower your total cost of ownership by providing stable, accurate results.
Sensors are factory calibrated with NIST®-traceable standards (where applicable).
DO readings are automatically compensated for salinity.
With the In-Situ Con TROLL Pro System, DO and level readings are automatically compensated for barometric pressure.

Greater efficiency and flexibility

Easy installation reduces errors and training time while increasing productivity.
With open communication protocols, the instrument easily interfaces with your current systems.
Access data anytime with a radio, controller, data logger, sampler, telemetry system or SCADA/PLC system.
Long-lasting calibrations reduce site visits.
The narrow-diameter (48mm) instrument operates in fresh, marine and process waters.

Durable design

PVC, acetal, titanium, 316 stainless steel, Viton®, PC/PMMA

Versatile power options

8-36 VDC (no internal battery)
PLC/SCADA system applications
External battery or solar-powered telemetry systems

SCADA/PLC and telemetry ready

Uses an open communication protocol
Modbus/RS485 and SDI-12

Accuracy

Conductivity: ±0.5%+1µS/cm typical; ±1% max. range
Dissolved oxygen: ±0.1 mg/L from 0 to 8 mg/L; ±0.2 mg/L from 8 to 20 mg/L; ±10% of reading from 20 to 50 mg/L
Level/depth/pressure: ±0.1% full scale (FS) @ 15° C; ±0.3% FS max. from 0-50° C
ORP: ±5.0 mV
pH: ±0.1 pH unit
Temperature: ±0.1° C

Specifications

Aqua TROLL 400 Multiparameter Water Quality Instrument · AquaTROLL-400
Property	Value
Accuracy — conductivity	±0.5%+1µS/cm typical; ±1% max. range
Accuracy — dissolved oxygen	±0.1 mg/L from 0 to 8 mg/L; ±0.2 mg/L from 8 to 20 mg/L; ±10% of reading from 20 to 50 mg/L
Accuracy — level/depth/pressure	±0.1% full scale (FS) @ 15° C; ±0.3% FS max. from 0-50° C
Accuracy — ORP	±5.0 mV
Accuracy — pH	±0.1 pH unit
Accuracy — temperature	±0.1 °C
Power supply	8-36 VDC (no internal battery)
Communication	Modbus/RS485 and SDI-12
Diameter	48 mm
Materials	PVC, acetal, titanium, 316 stainless steel, Viton®, PC/PMMA
Parameters	12 parameters from six sensors