Chemtrac HydroACT, DuraTrac 4 Quick Start Up Manual

Quick Startup Guide

HydroACT Analyzer with

DuraTrac 4 Streaming Current Sensor

Version 11/10/16

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Contents

DT4 Sensor Installation Guidelines and Tips ................................................................................................. 3

Dimensions / Mounting ................................................................................................................................ 4

Power Up ...................................................................................................................................................... 5

Menu Navigation........................................................................................................................................... 5

Signal Wiring ................................................................................................................................................. 6

Output Signal and Scaling Information ......................................................................................................... 6

Gain Adjustment (Including Cleaning Procedure) ......................................................................................... 7

Sensor Cleaning Frequency ........................................................................................................................... 7

Find the Optimum Streaming Current Value, and How to Zero the Reading Using Zero Offset .................. 8

Signal Health ................................................................................................................................................. 9

Optional PID Controls and Settings ............................................................................................................. 10

Optional Flow Pacing Feature ..................................................................................................................... 17

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HydroACT with DuraTrac 4 (DT4) - Quick Installation & Startup Guide

This guide is provided as supplement to the O&M Manual. Call 770-449-6233 to speak with one of our application
experts if you have any questions about this guide.

DT4 Sensor Installation Guidelines and Tips

 Sample point location is extremely important! Sample should be taken downstream of and as close to

coagulant injection as possible (ideally <60 seconds downstream), but at a point that allows for sufficient
mixing of the coagulant. Ideally, the sample needs to be taken upstream of flocculation and sedimentation
basins.

 Do not sample off bottom of a pipe where solids are more likely to accumulate. Abrasive solids will wear

down the sensor probe and piston and result in a loss of sensitivity to changes in coagulant dosage and
water quality.

 Install the DuraTrac 4 (DT4) sensor close to the sample point in order minimize the time it takes the DT4 to

detect process changes and maximize the response. If the sensor needs to be mounted further away from
the sample point, ensure the flow rate is high enough to deliver sample to sensor in under 30 sec.

 Maximum cable distance between the DT4 sensor and HydroACT analyzer is 1,000 ft. If a longer cable

distance is required, contact factory for assistance. Note: If pH probe was supplied, the Analyzer needs to
be mounted within 10 feet of the pH probe.

 If necessary, the DT4 sensor can handle up to 20 psi sample pressure. But an atmospheric drain near the

sensor (as shown below) is advised when possible. This allows for quick visual verification of flow and
reduces sensor maintenance (i.e. seal replacements).

 There are two 1” FNPT sample ports on the probe block, and either of the two can be used for the sample

inlet connection, with the other being the sample outlet. Direction of flow does not matter. Piping size
can be reduced, but do not reduce diameter of piping below ½” diameter. Larger ID pipe and fittings with
higher flow are less likely to plug on treated raw water samples.

 Sample flow to the sensor can be set for anywhere between 1 to 10 gpm. Flow does not typically need to

be tightly regulated, especially with short sample lines and when draining to atmosphere. Sensors running
under pressure or hooked up to long sample lines may experience some impact from flow/pressure
variations. Applications with higher solids/NTU should use a higher flow to prevent solids from
accumulating in the sample line and sensor. Longer sample lines also need higher flow rates to ensure
timely delivery of sample to the sensor.

 To avoid plugging, it is not recommended to install any piping, fittings, or devices in line with the sensor

that present a restriction to flow smaller than ½” diameter. This includes strainers, filters, and rotameters.
DT4 sensor is designed to allow larger solids (up to a ½” in diameter) pass through.

 If the sample is likely to have excessive amounts of sand

or grit at certain times, contact Chemtrac for
information on a Sand/Grit removal system. Do not
use strainers or filters upstream of the DT4 for
removing small grit as this will lead to problems with
loss of sample flow.

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Dimensions / Mounting

DuraTrac 4 Sensor

HydroACT

5

Power Up

Before removing the cover and performing any wiring, first connect the analyzer to line power (100 to 220 VAC, 50 to 60 Hz)
and access the user wiring diagrams which are discussed on the following page. Once the analyzer is powered up, the Home
Screen will appear and look similar to one of the two formats shown below.

Without PID

With PID

Home Screen Home Screen with PID

Note: If the DT4 sensor is not yet connected to the HA and powered up, the Streaming Current reading will appear in red text,

and there will be an audible alarm. Using the red menu navigation buttons, go to Menu > Analyzer > Alarm > Ack. to
acknowledge the alarm, and silence the beeping.

Menu Navigation

The HydroACT Interface is navigated using the buttons located below the display. From the Home Screen, press the Menu
button to access the Menu Screen shown below. The Menu Screen displays an individual “tile” for every device installed on
the analyzer, including Sensors (e.g. SCM, pH) and I/O features (e.g. Analog Input, Analog Output, Relay, PID). Press the Show
button to see other devices that are available but not currently activated. Use the Navigation buttons to highlight any one of
the tiles and then press Select to go into the menu or overview for that device. From there, press the Options button to access
the device’s menu. The “Connections” menu shows the wiring diagram for the sensor or I/O device.

Menu Screen

Sensor Overview Scroll down to Connections for wiring diagram.

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Signal Wiring

As discussed on the previous page, a signal wiring diagram and terminal location for any device (e.g. SCM, Flow Input, Analog
Output) can be accessed by going to the device menu (Menu>[Device]>Options) and scrolling down to “Connections” (see

examples at bottom right). Note: Wiring terminals cannot accept wires larger than 18 AWG.

 The interconnect wiring between the HydroACT analyzer and DT4 sensor is shown below and under

Menu>SCM1.x>Options>Connections. Use 18 AWG, 4 conductor, shielded cable, max 1000 ft.

 Terminal location & wiring for the analog output wiring is shown under Menu > xxx Out 1.x > Options >

Connections.

 Terminal location & wiring for optional Flow 4-20 mA Input wiring is shown under Menu > Flow Input 1.x

> Connections.

 Terminal location & wiring for optional Relays are shown under Menu > Relay x.x >Options >Connections.

Output Signal and Scaling Information

 The Streaming Current 4-20 mA Output is typically mapped to Analog Output 1.8 and scaled -500 to +500.
 The Signal Health 4-20 mA Output is typically mapped to Analog Output 1.7 and scaled 0 to 100%
 The Optional PID 4-20 mA Output is typically mapped to Optional Analog Output 1.6 and scaled 0 to

100%

Analog Output (4-20mA) “Connections” screen

Interconnect Wiring between HydroACT

and DuraTrac 4 Sensor

PID Out 1.6 Sig Health

Out 1.7

SCV Out 1.8 SCM 1.1 Flow Input 1.2

Interconnect Wiring between HydroACT

and DuraTrac 4 Streaming Current Sensor

SCM “Connections” Screen

Ground

Neutral

Line

+4-20mA In

-4-20mA In

1 3 4 2 5

6

7

8

9

Slot 1

Slot 2

Slot 3

Slot 4

Slot 5

Slot 6

Slot 7

Slot 8

1. SCM & Optional 4-20mA Flow Input Terminals

2. 4-20 mA Output Terminals

3. Relay Terminals (Optional)

4. Digital Input Terminals (Optional)

5. +24 VDC Terminals

6. -24 VDC (Common) Terminals

7. Line Terminals (110 or 220 VAC)

8. Neutral Terminals (110 or 220 VAC)

9. Earth Ground Terminals