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Related Manuals for HydroAir P-38 Series
Summary of Contents for HydroAir P-38 Series
- Page 1 Edition Operations Manual P-38 Series pH/ORP Analyzer...
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Page 3: Table Of Contents
Hydro-Air P-38 Table of Content Table of Content Table of Content ..................... I Specifications ..................... 1 Introduction ....................2 2.1. General Information ................2 2.2. Safety Information ................2 2.3. Safety Precautions ................3 2.3.1. Handling by authorized personnel ........3 2.3.2. - Page 4 Table of Content Hydro-Air P-38 6.4. Measurement Settings ..............15 6.5. Temperature Settings ............... 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 Calibration ....................19 7.1.
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Page 5: Specifications
Hydro-Air P-38 Specifications Specifications Specifications are subjected to change without notice. DETAILS SPECIFICATIONS Measuring Range -2.00 to +16.00pH -2000 to +2000mV Resolution 0.01pH Accuracy ±0.01pH ±1mV Temperature Probe Pt 1000 / NTC 10K Temperature Range -10.0℃ to +130.0℃ Temperature Resolution 0.1℃... -
Page 6: Introduction
Introduction Hydro-Air P-38 Introduction 2.1. General Information Notice Indicates essential information regarding operation, calibration or anything which is considered as good practice or handling of the products. The manufacturer will not be liable and responsible for any direct, indirect, incidental or consequential damages due to any defect or omission in the operations manual. -
Page 7: Safety Precautions
Hydro-Air P-38 Introduction 2.3. Safety Precautions It’s vitally important to take safety precautions during the installation, operation and calibration of sensors and controllers. Safety must not be compromised; some ground rules need to be followed first. The basic guidelines regarding the safe handling of electrical components are documented below will help users while working with electricity. -
Page 8: Product Overview
Product Overview Hydro-Air P-38 Product Overview 3.1. Product Content The P-38 series packaging contains 1 x P-38 controller, 1 x printed 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. -
Page 9: Installation
Hydro-Air P-38 Installation Installation This part describes how to install the controller and how to connect the unit to a power source and auxiliary equipment. Wiring Installation The specified performance of the controller is entirely dependent on correct installation. For this reason, the installer should thoroughly read the following instructions before attempting to make any electrical connections to the unit. - Page 10 Installation Hydro-Air P-38 Figure 2 Connection label of P38 (90~260VAC power supply) Figure 3 Connection label of P38-DC (24VDC power supply) pH / ORP Analyzer...
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Page 11: Sensor Connection
Hydro-Air P-38 Installation 4.2. Sensor Connection Extension of sensor cable If the user chooses to extend the sensor cable, please ensure the extension cable is coaxial type and is in good condition. For sensors without a built-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. -
Page 12: Conventional Combination Sensor Without Grounding Electrode (2-Wire Sensor)
Installation Hydro-Air P-38 4.2.1. Conventional Combination Sensor Without Grounding Electrode (2-Wire Sensor) The 2-Wire Sensor features an Active Electrode (pH) and a Reference 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. -
Page 13: Conventional Combination Sensor With Grounding Electrode (3-Wire Sensor)
Hydro-Air P-38 Installation 4.2.2. Conventional Combination Sensor With Grounding Electrode (3-Wire Sensor) The 3-Wire Sensor features an Active Electrode (pH), a Reference Electrode (Ref.) and a Grounding Electrode (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. -
Page 14: Differential Sensor
Installation Hydro-Air P-38 4.2.3. Differential Sensor Differential Sensor features an Active Electrode (pH), a Reference Electrode (Ref.), a built-in Grounding Electrode to eliminate noise / disturbance and a built-in Temperature Electrode for temperature 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. -
Page 15: User Interface
Hydro-Air P-38 User Interface User Interface 5.1. Front Screen WARNING! Before proceeding, ensure that the installation instructions have been followed correctly. Failure to do so may result in an electrically hazardous installation or irreparable damage to the instrument. P-38 is accompanied by five control buttons whose function varies depending upon which screen the user is viewing. - Page 16 User Interface Hydro-Air P-38 Figure 8 Operation screen overview DESCRIPTION Operation status Measurement value Measurement unit Temperature and unit Temperature compensation: Auto (ATC) or Manual (MTC) Current output value Relay A status Relay A deenergized Relay A energized Relay B status Relay B deenergized Relay B energized pH / ORP Analyzer...
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Page 17: Main Menu
Hydro-Air P-38 User Interface 5.2. 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: •... -
Page 18: Advanced Operation
Advanced Operation Hydro-Air P-38 Advanced Operation This section describes the operational settings of the controller. 6.1. 4-20mA (Current Output Settings) DISPLAY FUNCTIONS 04.00mA: Set the value corresponding to 4.00mA output : 0.00 to 14.00pH : -2000 to 2000mV 20.00mA: Set the value corresponding to 20.00mA output : 0.00 to 14.00pH : -2000 to 2000mV Offset:... -
Page 19: Relay B Settings
Hydro-Air P-38 Advanced Operation 6.3. Relay B Settings DISPLAY FUNCTIONS Status: Enable / Disable Relay B Run: Set point value to energize Relay B : 0.00 to 14.00pH : -2000 to 2000mV Off: Example: Set point value to deenergize Relay B If an alkali dosing pump is required : 0.00 to 14.00pH to run at pH 4 and to stop at pH 10,... -
Page 20: Temperature Settings
Advanced Operation Hydro-Air P-38 6.5. Temperature Settings DISPLAY FUNCTIONS Status: Set the mode for temperature compensation 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℃... -
Page 21: Simulator Settings
Hydro-Air P-38 Advanced Operation 6.7. Simulator Settings DISPLAY FUNCTIONS 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 Simulator is used to simulate and verify the condition of the current... -
Page 22: Default Settings
Advanced Operation Hydro-Air P-38 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) pH / ORP Analyzer... -
Page 23: Calibration
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 uncontaminated and not beyond its lifespan. - Page 24 Calibration Hydro-Air P-38 Two test containers with standard pH buffer solutions are required for calibration. The sensor should be rinsed thoroughly with water when changing the standard solution. DISPLAY FUNCTIONS Select Calibrate to initiate sensor calibration Select Default to reset all calibration settings back to factory settings.
- Page 25 Hydro-Air P-38 Calibration Reading: Current pH reading from the sensor Buffer: Press the UP / DOWN key to set the buffer for the Second Point Buffer options : 1.68 / 4.01 / 9.18 / 10.01 / 12.45 pH Place the sensor into the standard buffer. Then press ENTER to start calibration.
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Page 26: Orp Calibration
Hydro-Air P-38 7.3. ORP Calibration One-Point Calibration The P-38 series features the “One-Point Calibration” on ORP sensors which is the recommended standard method. Before calibration, make sure the standard buffer and the sensor probe are uncontaminated and not beyond its lifespan. -
Page 27: Default
Hydro-Air P-38 Calibration Status: Displays Pass/Fail to indicate the result 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. -
Page 28: Rs-485 Command
RS-485 Command Hydro-Air P-38 RS-485 Command 8.1. Connections The controller connects to the RS-485 Modbus RTU via the RS485A (slot 20) and RS485B (slot 19). Please make sure the connection is correct to the corresponding slots at the terminal block. See page 6 (Figure 2 and Figure 3). 8.2.
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