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HydroAir P-38 Series, Operation Manual

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HydroAir P-38 Series Operation Manual Download Page 5

Hydro-Air P-38 

Specifications 

 

pH / ORP Analyzer 

1 

1.0 

Specifications 

Specifications are subjected to change without notice. 
 

SPECIFICATIONS 

DETAILS 

pH 

ORP 

Measuring Range 

-2.00 to +16.00pH 

-2000 to +2000mV 

Resolution 

0.01pH 

1mV 

Accuracy 

±0.01pH 

±1mV 

Temperature Probe 

Pt 1000 / NTC 10K 

Temperature Range 

-10.0

℃

 to +130.0

℃

 

Temperature Resolution 

0.1

℃

 

Temperature Accuracy 

±0.2

℃

 

Ambient Temperature 

0

℃

 to +70

℃

 

Storage Temperature 

-20.0

℃

 to +70.0

℃

 

Input Impedance 

>10

12

Ω 

Analogue Output 

1 x 4-

20mA electrically isolated, max load 500Ω 

Control Outputs 

2 x Relay Outputs 

Max. Relay Contacts 
Capacity 

5A/250 VAC 
5A/30 VDC 

Fieldbus Connection 

RS-485 Modbus 

Baud Rate 

9600 

Protection Class 

IP65 

Display 

128 x 64 LCD Module 

Language Selection 

English 
Others upon request 

Electrical Connection 

90 to 260 VAC 

or 

24 VDC 
Power consumption <5W 

Dimensions (H x W x D) 

108mm x 108mm x 140mm 

Panel Cutout 

92mm x 92mm 

Weight 

0.55 kg 

 

 

Summary of Contents for P-38 Series

Page 1: ...1st Edition Operations Manual P 38 Series pH ORP Analyzer ...

Page 2: ......

Page 3: ...tion of unsafe acts and conditions 3 3 0 Product Overview 4 3 1 Product Content 4 3 2 Dimensions 4 4 0 Installation 5 4 1 Electrical Construction 5 4 2 Sensor Connection 7 4 2 1 Conventional Combination Sensor Without Grounding Electrode 2 Wire Sensor 8 4 2 2 Conventional Combination Sensor With Grounding Electrode 3 Wire Sensor 9 4 2 3 Differential Sensor 10 5 0 User Interface 11 5 1 Front Screen...

Page 4: ...ngs 16 6 6 RS 485 Settings 16 6 7 Simulator Settings 17 6 8 Language Settings 17 6 9 Default Settings 18 6 10 Version 18 7 0 Calibration 19 7 1 Calibration Menu 19 7 2 pH Calibration 19 7 3 ORP Calibration 22 7 4 Default 23 8 0 RS 485 Command 24 8 1 Connections 24 8 2 Settings 24 8 3 Start Address 24 ...

Page 5: ...ure Accuracy 0 2 Ambient Temperature 0 to 70 Storage Temperature 20 0 to 70 0 Input Impedance 1012 Ω Analogue Output 1 x 4 20mA electrically isolated max load 500Ω Control Outputs 2 x Relay Outputs Max Relay Contacts Capacity 5A 250 VAC 5A 30 VDC Fieldbus Connection RS 485 Modbus Baud Rate 9600 Protection Class IP65 Display 128 x 64 LCD Module Language Selection English Others upon request Electri...

Page 6: ...o request the latest and revised editions of the operations manual Unpacking setting installing and operating of the product require comprehensive knowledge and understanding of the entire operations manual Please take note to all danger warning and notice signs and details Negligence of the danger warning and notice signs could increase the risk of serious injury to the product s operator or even...

Page 7: ...o corrosivity and no direct sunlight exposure 2 3 3 Component isolation The signal cables in the instrument should be separated from the power lines and machines that produces high noise interference which affects the performance of the controller significantly 2 3 4 Elimination of unsafe acts and conditions During installation and operation of the instrument never use frayed cords damaged insulat...

Page 8: ...manual and 2 x holders 3 2 Dimensions The instrument can be installed into control panel Allocate a 92x92mm square cutout insert the controller then screw the fixed holder Figure 1 Controller dimensions from panel front back and side view Panel Cutout Front View Back View Side View 128mm 95mm 82mm 50mm 38mm 5mm 82mm 5mm 13mm 92mm HOLDER 92mm 102mm 92mm 102mm ...

Page 9: ...lectric current WARNING Always remove the main power from the system before attempting any alterations to the wiring Ensure that both power input lines are isolated Make sure that the power cannot be switched on by accident whilst the unit is being connected Local wiring and safety regulations should be strictly adhered to when installing this unit 4 1 Electrical Construction The controller operat...

Page 10: ...Installation Hydro Air P 38 6 pH ORP Analyzer Figure 2 Connection label of P38 90 260VAC power supply Figure 3 Connection label of P38 DC 24VDC power supply 24V 24V ...

Page 11: ...lt in pre amplifier e g Conventional Combination Sensor it is highly recommended to install an external pre amplifier into any cable connection exceeding 25m to ensure excellent reading accuracy and consistency of the sensor Removal of Conductive Layer The user must ensure the pH cable is separated from the Reference cable Moreover the conductive layer covering the pH cable must be removed in orde...

Page 12: ...ference Electrode Ref The Temperature Electrode Temp or T P is an optional feature of the sensor for temperature compensation Since the 2 Wire Sensor does not feature a Grounding Electrode the short pin is required in this setup Figure 4 Connection figure for 2 Wire Sensor Conductive layer T P or Temp Pt1000 NTC10K SHORT 12 11 10 6 5 pH Transparent Coaxial cable Sensor Body Ref Black ...

Page 13: ...de GND to eliminate noise disturbance in the process medium The Temperature Electrode Temp or T P is an optional feature of the sensor for temperature compensation Since the 3 Wire Sensor features a Grounding Electrode the short pin is not required in this setup Figure 5 Connection figure for 3 Wire Sensor T P or Temp Pt1000 NTC10K 12 11 6 5 pH Transparent Conductive layer Coaxial cable Sensor Bod...

Page 14: ...rature compensation The sensor also features a built in pre amplifier which enables an installation exceeding 25m cable length while maintaining excellent reading accuracy and consistency The short pin is required in this setup Figure 6 Connection figure for Differential Sensor 12 10 pH Red Coaxial cable Sensor Body Built in Temperature Electrode T P or Temp Pt1000 NTC10K Yellow Ref Green 6 5 11 B...

Page 15: ...display Figure 7 Keypad and front panel overview NO DESCRIPTION 1 Controller display 2 MODE ESC key From the Operation screen press MODE to enter the Main Menu for operation configurations Press ESC to navigate back to the previous page 3 CAL SHIFT key From the Operation screen press CAL to enter the Calibration page Press SHIFT to navigate to the left either to change options or values 4 UP key P...

Page 16: ...iew NO DESCRIPTION 1 Operation status 2 Measurement value 3 Measurement unit 4 Temperature and unit 5 Temperature compensation Auto ATC or Manual MTC 6 Current output value 7 Relay A status Relay A deenergized Relay A energized 8 Relay B status Relay B deenergized Relay B energized ...

Page 17: ... Main Menu DISPLAY INFO The first page of the Main Menu displays the following configurations 4 20mA Relay A Relay B Measurement Temperature The second page of the Main Menu displays the following configurations RS 485 Simulator Language Default Version ...

Page 18: ...20 00mA Set the value corresponding to 20 00mA output pH 0 00 to 14 00pH ORP 2000 to 2000mV Offset Current output adjustment Range 1 00 to 1 00mA 6 2 Relay A Settings DISPLAY FUNCTIONS Example If an acid dosing pump is required to run at pH 10 and to stop at pH 4 then set Run 10 00pH and Off 04 00pH Status Enable Disable Relay A Run Set point value to energize Relay A pH 0 00 to 14 00pH ORP 2000 t...

Page 19: ...t Run 04 00pH and Off 10 00pH Status Enable Disable Relay B Run Set point value to energize Relay B pH 0 00 to 14 00pH ORP 2000 to 2000mV Off Set point value to deenergize Relay B pH 0 00 to 14 00pH ORP 2000 to 2000mV 6 4 Measurement Settings DISPLAY FUNCTIONS Mode Set the parameter to measure Parameters pH ORP Offset Parameter value adjustment pH 1 00 to 1 00pH ORP 100 to 100mV ...

Page 20: ...ation Auto ATC Manual MTC Type Set the type of temperature probe used ATC only Probes Pt1000 NTC10K Offset Temperature value adjustment ATC only Range 5 0 to 5 0 Manual Set the temperature of solution MTC only Range 10 0 to 130 0 6 6 RS 485 Settings DISPLAY FUNCTIONS Mode Set the ID Address for RS 485 Modbus protocol ID Address 001 to 255 ...

Page 21: ...n stops after the user exits the screen 4 20mA Set the simulation value for current output Press ENTER to inject the output signal to multimeter or other related testing kit Range 4 00 to 20 00mA Relay A Inject ON OFF signal to energize deenergize Relay A manually Relay B Inject ON OFF signal to energize deenergize Relay B manually 6 8 Language Settings DISPLAY FUNCTIONS Mode Set the preferred lan...

Page 22: ... P 38 18 pH ORP Analyzer 6 9 Default Settings DISPLAY FUNCTIONS Reset Resets all operational settings back to factory settings 6 10 Version DISPLAY FUNCTIONS Displays the current version of controller s Software SW and Hardware HW ...

Page 23: ...h the controller 7 1 Calibration Menu DISPLAY FUNCTIONS Select Calibrate to initiate sensor calibration Select Default to reset all calibration settings back to factory settings 7 2 pH Calibration Two Point Calibration The P 38 series features the Two Point Calibration on pH sensors which is the recommended standard method Before calibration make sure the standard buffers and the sensor probe are ...

Page 24: ...set all calibration settings back to factory settings Slope The latest slope of the pH sensor Default 59 16mV Press ENTER to start calibration Reading Current pH reading from the sensor Buffer Press the UP DOWN key to set the buffer for the First Point Buffer options 6 86 7 00 pH Place the sensor into the standard buffer Then press ENTER to start calibration The screen shows CAL indicating the cal...

Page 25: ... standard buffer Then press ENTER to start calibration The screen shows CAL indicating the calibration is in progress Press ENTER when the Reading is stable to display calibration results Status Displays Pass Fail to indicate the result of calibration Slope Buffer Displays the slope resulted from the calibration if calibration is a success Displays ERROR if the calibration is a failure Press ENTER...

Page 26: ...t container with standard ORP buffer solution is required for calibration DISPLAY FUNCTIONS Select Calibrate to initiate sensor calibration Select Default to reset all calibration settings back to factory settings Reading Current ORP reading from the sensor Buffer Set the ORP value of the buffer to be used Place the sensor into the standard buffer Then press ENTER to start calibration The screen s...

Page 27: ...t of calibration Slope Buffer Displays the adjusted value resulted from the calibration if calibration is a success Displays ERROR if the calibration is a failure Press ENTER to complete the calibration 7 4 Default DISPLAY FUNCTIONS Reset Resets all calibration settings back to factory settings ...

Page 28: ...ontroller Please ensure the ID assigned in the RS 485 Modbus software is the same ID set in the controller In order to initiate the RS 485 function in the controller the user needs to set these configurations in the RS 485 MODBUS software CONFIGURATIONS DETAILS Protocol Modbus RTU Baud rate 9600 Fixed Data bits 8 Stop bit 1 Parity None ID 0x01 default 8 3 Start Address ADDRESS DESCRIPTION DATA TYP...

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