Streaming Current Detector
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Description
The HydroACT Analyzer with DuraTrac 4 Streaming Current Sensor is Chemtrac’s most reliable and accurate Streaming Current Monitor, providing unique and versatile capabilities for optimizing coagulant or polymer dosing. With improved Streaming Current measurement capability, expansive I/O, state of the art chemical feed logic, and the ability to monitor additional parameters key to coagulation (e.g. pH, UV254, NTU), this revolutionary product offers a dependable, comprehensive, and scalable approach for tackling virtually any water treatment scenario. A well designed interface gives the user easy access to frequently used features like zero offset. Intelligent diagnostics, service reminders, advanced alarm features, and optional email/text alerts all work together to notify the user when service is required or when process conditions having changed sufficiently to warrant attention.
Standard Features
- Includes analyzer, DuraTrac 4 sensor, 1 analog output, and 25 feet of interconnect cable
- 0.2 to 10 gpm sample flow capability
- Quick-replacement, user serviceable parts
- Easy push button zero offset
- Advanced signal health diagnostics
Optional Features
- Expandable sensor inputs and I/O
- Up to 1000 feet of interconnect cable
- Chemical feed control outputs
- Data logging with MicroSD download
- Modbus or PROFIBUS communications
- Color display
- Remote (internet) access
Benefits
- Capability of incorporating multiple measurements that are key to coagulation, such as pH, TSS/NTU, and UV254 organics
- Multiple chemical feed control options with overfeed protection, start delay, setpoint ramping, and other advanced features
- State of the art features like signal health diagnostics and pH compensation provides improved
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Specifications
The HydroACT Streaming Current Analyzer standard configuration includes version HA2 analyzer, 1 DuraTrac 4 sensor, 1 analog output, and 25 feet of interconnect cable. Optional features include relays, digital inputs, digital communications, expanded number of sensor inputs and analog outputs, color display, and data download capability. Maximum I/O capabilities and certain features are specific to the different versions of HydroACT as detailed below.
HydroACT Features HA2 HA4 HA8 Sensor limit* 2 4 8 Analog output limit* 2 4 8 Relay limit* 4 8 16 Digital Input limit* 4 8 16 On/Off threshold control optional optional optional Advanced control (e.g. PID) optional optional optional Color display • • Data logging and download • • Remote (Internet) access optional optional PROFIBUS, Modbus optional optional *Optional configuration limits. See above description for standard configuration of analyzer version & I/O setup. Optional configurations must be specified.
Sensor Options Free Cl, Total Cl, Cl Dioxide, Chlorite,
Ozone, ORP, pH with Temperature, DO,
Conductivity, SCM, UV254 Organics,
TSS/NTU, Particle CounterAvailable Output Types Universal (0-20mA, 4-20mA, 0-10 VDC) Relays (optional) SPST electromechanical relays rated for
380 VAC, 6A max.Alarms & Thresholds: user-configurable alarms and 2 userconfigurable
thresholds (for control)Chemical Feed Control (optional) HA4 & HA8 only – PID, Feed Forward, Flow
Proportional, Timer – multiple loopsCommunication (optional) Modbus ASCII/RTU (RS485), Modbus TCP
(Ethernet), Profibus DPData Logging (optional) Customizable data logs. 1 million records
can be logged internally, and downloaded
to MicroSD card.Enclosure ABS flame retardant, IP65, Nema 4X Display 4.3”, 480×272, 24 bit, grayscale
Optional: color (HA4 & HA8 only)Dimensions HA2 & HA4 – 9.0” W x 12.2” H x 4” D
(230 mm W x 309 mm H x 1035 mm D)
HA8 – 18.0” W x 12.2” H x 4” D
(460 mm W 309 mm H x 1035 mm D)Weight HA2 & HA4 – 4.5 lbs (2 kg)
HA8 – 9 lbs (4 kg)Warranty 12 months from date of purchase DuraTrac 4 Streaming Current Sensor
Range -1000 to +1000 Signal Gain User adjustable, 1 to 600x Zero Offset User adjustable Sample Flow Rate 1 to 40 Liters per minute Gain & Zero Offset User adjustable, Manual or Automatic Repeatability (Cond. Range)* Better than 2% from (10 to 250 uS)
Better than 3% from (250 to 500 uS)
Better than 5% from (500 to 1,000 uS)Max Pressure 20 psi (recommend atmospheric drain) Probe Type Quick-replacement cartridge with replaceable sleeve Sample Connections 1” FNPT Materials Contacting Sample Delrin, viton, stainless steel Wiring Connections 1 ea. shielded, 4 conductor, 22 AWG Self Diagnostics Motor – RPM, Signal Health Power Requirements 110 VAC, 1 A, 60 Hz
220 VAC, 1 A, 50 Hz (optional)Enclosure NEMA 4X, fiberglass reinforced Operating Temperature 34° – 120° F (1° – 49° C) Dimensions 11.2” W x 9.2” H x 6.3” D
(285 mm W x 234 mm H x 161 mm D)Weight 10 lbs (4.5 kg) *Repeatability/Accuracy specifications for most other SCM’s are only valid when conductivity is very stable. These instruments do not perform to their specification when conductivity changes by as little as 10%.
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Downloads
Title Size Download SCD Calibration 204.44 KB DownloadPreview Quick Start Guide HydroACT 4 User Manual 0.97 MB DownloadPreview HydroACT 4 DuraTrac 4 Operations Manual 3.47 MB DownloadPreview HydroACT & DT4 - Data Sheet 867.55 KB DownloadPreview -
News
Streaming Current Detector Calibration?
There are no true “standards” for calibrating Streaming Current Detectors (SCD). However, there are reliable and proven verification methods that can be used to check how effectively the SCD is working, and provide a basis for adjusting the instrument’s gain setting so as to maintain consistent and repeatable responses to changes in water quality and coagulant dosage.
Chemtrac Products Featured in January Issue of TPO
A case history that was first introduced as a testimonial video on our website, has now landed in print on the pages of TPO (Treatment Plant Operator) magazine.
Not Just Streaming Current Measurement Anymore
Working closely with a major municipality in the southeast, Chemtrac, Inc. compared their new line of coagulation control instrumentation against their tried and proven Streaming Current Controller (which has been in use at this specific plant for the past couple of years).
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Videos
SC Water Treatment Plant Overcomes Challenges due to Epic Flood
In October, 2015, the city of Columbia, SC received about 24 inches of rain in 48 hours. Severe flooding occurred. The storm had an impact on the Broad River, and subsequently created challenges for a local water treatment plant.
DuraTrac 4 Seal Kit Maintenance
This video shows how to adjust, maintain & replace the seals used on the DuraTrac 4 Streaming Current Sensor. Also, it will show you how to resolve any leaking that may occur from the bleed hole on the probe block.
Cleaning the Chemtrac DuraTrac 4 Sensor Probe and Piston
Periodically the Streaming Current Sensor will become less responsive, and when this happens, the probe and piston should be cleaned. The cleaning alone can restore the sensor back to where it is once again delivering expected performance results.
Changing the Piston in the Chemtrac DuraTrac 4 Streaming Current Sensor
Over time, the probe and the piston in the Duratrac 4 Streaming Current Sensor will become worn, and subsequently less responsive. When this happens, cleaning the probe and piston surfaces may not be enough to improve the response to a degree of satisfaction.
Changing the Probe in the Chemtrac DuraTrac 4 Streaming Current Sensor
Over time, the probe and the piston in the Duratrac 4 Streaming Current Sensor will become worn, and subsequently less responsive. When this happens, cleaning the probe and piston surfaces may not be enough to improve the response to a degree of satisfaction.
