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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 

P

ID 

 O

ut

 1.6

 

Si

g H

e

al

th 

O

ut

 1.7

 

SC

V

 O

ut

 1.8

 

SC

M

 1.1

 

Fl

ow 

Input 

1.2

 

Interconnect Wiring between HydroACT 

and DuraTrac 4 Streaming Current Sensor 

SCM 

“Connections” S

creen 

Ground 

Neutral 

Line  

+4-20mA In 

-4-20mA In 



Sl

ot

 1

 

Sl

ot

 2

 

Sl

ot

 3

 

Sl

ot

 4

 

Sl

ot

 5

 

Sl

ot

 6

 

Sl

ot

 7

 

Sl

ot

 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 

Summary of Contents for DuraTrac 4

Page 1: ...Quick Startup Guide HydroACT Analyzer with DuraTrac 4 Streaming Current Sensor Version 11 10 16...

Page 2: ...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...

Page 3: ...c 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...

Page 4: ...4 Dimensions Mounting DuraTrac 4 Sensor HydroACT...

Page 5: ...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 s...

Page 6: ...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 typica...

Page 7: ...de the probe block or on the probe piston surfaces Try cleaning again and be sure to use the cleaning agent on all surfaces Once reading appears to have stabilized add more raw water until the reading...

Page 8: ...sufficient time to stabilize 2 hours recommended for brand new unit the below procedure should be followed to find the optimum SCV that will be used as the setpoint by which to gauge coagulant dosing...

Page 9: ...the Streaming Current waveform signal go to Menu SCM Options Diagnostics Waveform The waveform view will update every 5 seconds The waveform display can aid tremendously with troubleshooting problems...

Page 10: ...ngly Holding down the Select button will cause the output to change more rapidly Home Screen To make faster changes to the pump speed or to change the setpoint value if not using Zero Offfset simply h...

Page 11: ...art Delay 00 00 00 If 0 controller will initialize in the Start Mode see below for user defined time HH MM SS before switching to Run Mode This occurs on power up and when Process Signal input receive...

Page 12: ...to increase the rate of PID adjustments Options Setup Output Setup Parameter Factory Setting Notes Manual Value 0 Allows the user to adjust the pump output when the Run Mode is set to Manual This sett...

Page 13: ...ero at all times Ramping Disabled Ramping feature is generally only used for applications that start and stop automatically PID control can struggle during a startup event to bring the process variabl...

Page 14: ...al value is increased and vice versa Typical settings used are 0 200 to 1 000 This setting determines the controller s proportional response to the difference between the Setpoint and Process Variable...

Page 15: ...is highly sensitive to noise in the process variable signal and relies on the PV to be fairly proportional to the PID output changes which the Streaming Current reading is generally not If used the Up...

Page 16: ...afe on PV Alarm Disabled Enabling this feature will cause the PID to revert to the Failsafe Mode in response to a Streaming Current alarm high or low reading going active If the Failsafe Mode is set f...

Page 17: ...ns Setup PID Flow Setup Parameter Factory Setting Notes Enabled Disabled This setting is disabled on all units leaving the factory even those ordered with flow pacing capability Enable this setting to...

Page 18: ...is the typical flow rate the plant runs at 400 should be entered as the Nominal Flow 6 The next step is to change the High and Low Output settings for upper and lower controller output range or pump s...

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