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Summary of Contents for pyroscience Pico-pH
- Page 1 Pico-pH OEM Fiber-Optic pH Meter MANUAL PyroScience GmbH www.pyroscience.com...
- Page 2 Pico-pH | Manual Pico-pH OEM Fiber-Optic pH Meter Document Version 1.09 The Pico-pH is released by: PyroScience GmbH Kackertstr. 11 52072 Aachen Germany Phone +49 (0)241 5183 2210 +49 (0)241 5183 2299 Email info@pyroscience.com www.pyroscience.com Registered: Aachen HRB 17329, Germany...
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Page 3: Table Of Contents
4.2 Using the software Pyro Developer Tool ................13 Option 3: Simplified Custom Integration ................14 5.1 Configuring the Module using PyroScience Software ........... 14 5.2 Electrical Connector for Custom Integration ..............14 5.3 Configuration of the Serial Interface ..................15 5.4 Communication Protocol ...................... - Page 4 Pico-pH | Manual 5.4.10 #STOP – Enter Deep Sleep Mode ................23 5.4.11 #RSET – Reset Device ....................23 5.4.12 #RDUM – Read User Memory ..................23 5.4.13 #WRUM – Write User Memory .................. 24 5.4.14 #ERRO – Response if Error Occurred ..............24 5.5 Available Implementations of Communication Protocol ..........
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Page 5: Introduction
Pico-pH | Manual INTRODUCTION Pico-pH (item no. PICO-PH) is a fiber-optic OEM meter for read-out of optical pH sensors from PyroScience. The is characterized by its small size, durability and Pico-pH low power consumption. This OEM module is easy to integrate and is controlled with a simple serial communication protocol. -
Page 6: Overview
Pico-pH | Manual OVERVIEW Figure 1 provides an overview of the Pico-pH. The front provides the port for connecting an optical fiber used for read-out of optical pH sensors, as well as solder points for an external temperature sensor enabling automatic temperature compensation. -
Page 7: Flow-Through Cells
Pico-pH | Manual Figure 2: Connection of pH sensor spots to Pico-pH via an optical fiber (left) or a rod (right). 2.1.2 Flow-through cells The pH flow-through cells (PHFLOW) can be connected via the optical fiber PICFIB2 to a Pico-pH. In contrast to the sensor spots, no additional adapter is needed. -
Page 8: Connection Of Fibers And Rods To The Optical Port
Connection of fibers and rods to the optical port The optical fibers or the fiber rods must be connected to the optical port of the Pico-pH with their instrument end (IE). At the IE, the core of the optical fiber protrudes ca. 1 mm from the fiber jacket. -
Page 9: Status Led
USB interface cable For the operation of with a Windows PC, a coded USB interface cable (item no. Pico-pH PICO-USB) is available from PyroScience. It includes a license for the comfortable logger software Pyro Workbench and the software Pyro Developer Tool. -
Page 10: Option 1: Operating The Module With Pyro Workbench
Pico-pH | Manual OPTION 1: OPERATING THE MODULE WITH PYRO WORKBENCH For initial evaluation purposes the module can be operated with the simple and customer-friendly software Pyro Workbench, which is typically used by end-users. This software offers comfortable settings and calibration wizards, as well as advanced logging features. -
Page 11: Using The Software Pyro Workbench
Pico-pH | Manual • Start the Pyro Workbench software. Using the software Pyro Workbench Please refer to the Pyro Workbench manual for general operation instructions for the software (available on our website). Please refer to the pH Sensor manual for general information on handling and calibration of the pH sensors (available on our website). -
Page 12: Option 2: Operating The Module With Pyro Developer Tool
Pico-pH | Manual OPTION 2: OPERATING THE MODULE WITH PYRO DEVELOPER TOOL For advanced evaluation purposes the module can be operated with the software Pyro Developer Tool. It offers simple settings and calibration procedures, as well as basic logging features. Furthermore, additional advanced settings offer full control on all features of the module. -
Page 13: Using The Software Pyro Developer Tool
Pico-pH | Manual • connect the USB plug to an USB port of the PC. The status LED of the Pico-pH should flash shortly indicating the correct startup of the module. • Start the software. Pyro Developer Tool Using the software Pyro Developer Tool... -
Page 14: Option 3: Simplified Custom Integration
The module can then be integrated into a specific setup, and your custom software can perform measurements using a proprietary USB/UART communication protocol. Configuring the Module using PyroScience Software Please install either the Pyro Workbench... -
Page 15: Configuration Of The Serial Interface
Pico-pH | Manual Figure 6: Electrical connectors of Pico-pH The pin configuration of the connector X1 is given in Table 2. Table 2: Pin configuration of the connector X1 Name Function Description Power Power supply min. 3.3 VDC max. 5.0 VDC... - Page 16 Pico-pH | Manual Note: The serial interface of this module is not an RS232 interface. However, the UART interface can be made compatible to RS232 by integrating an appropriate "level shifter electronics". © PyroScience GmbH...
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Page 17: Communication Protocol
Pico-pH | Manual Communication Protocol 5.4.1 General Definitions A command always starts with a specific command header (e.g. MEA, #VERS, #LOGO) optionally followed by several input parameters. Input parameters are given as human readable decimal numbers, separated by spaces from each other. Each command must be terminated by a carriage return. - Page 18 Pico-pH | Manual Bit 5 (add 32): case temperature (temperature within the module) Example: S = 1 + 2 + 4 + 8 + 32 = 47 means, that the command will trigger the following measurements: optical channel (pH), sample temperature, case temperature, ambient air pressure, and relative humidity within the module housing.
- Page 19 Pico-pH | Manual This command is the essential command for triggering measurements. If the input parameter S is requesting several sensor types to be measured, the optical pH measurement ("optical channel") is always performed as the last measurement. This ensures that for enabled automatic temperature compensation the sample temperature measurement (typ.
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Page 20: Cph - Calibrate Ph Sensor
Pico-pH | Manual CPH – Calibrate pH Sensor 5.4.3 This command is used for calibrating the pH sensor at up to 3 different calibration points. The sensor must be calibrated at 2 points and a pH offset adjustment is possible for advanced users. -
Page 21: Vers - Get Device Information
#VERS↵ Response: #VERS˽D˽N˽R˽S˽B˽F↵ Output Parameters: Device ID, identifies the specific device type. For the Pico-pH the device ID is always 4. Number of optical channels. For the Pico-pH this value is 1. Firmware version, e.g. R=403 designates firmware version 4.03... -
Page 22: Idnr - Get Unique Id Number
Pico-pH | Manual ↵ Example Communication: ↵ Command: #VERS˽1 Response: #VERS˽1˽4˽403˽1071˽2˽271 #IDNR – Get Unique ID Number 5.4.6 This command returns the unique identification number of the respective device. Command: #IDNR↵ Response: #IDNR˽N↵ Output Parameters: Unique ID number. Note, this parameter is given as an unsigned 64 bit... -
Page 23: Stop - Enter Deep Sleep Mode
Pico-pH | Manual Response: #PWUP↵ The wake-up duration is up to 250 ms. 5.4.10 #STOP – Enter Deep Sleep Mode This command puts the device into a deep sleep mode with very low power consumption Command: #STOP↵ Response: #STOP↵ During deep sleep mode the device has very low power consumption). No standard communication via USB/UART is possible. -
Page 24: Wrum - Write User Memory
Pico-pH | Manual ↵ ↵ Command: #RDUM˽12˽4 Response: #RDUM˽12˽4˽-40323˽23421071˽0˽-555 This example shows a command which requests the values of 4 consecutive beginning with the user memory address 12. 5.4.13 #WRUM – Write User Memory ↵ This command writes values into the user memory registers. - Page 25 Pico-pH | Manual Error Type Description General A non-specific error occurred. The requested optical channel does not exist. Channel Memory Access Memory access violation either caused by a not existing requested register, or by an out of range address of the requested value.
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Page 26: Available Implementations Of Communication Protocol
Pico-pH | Manual Available Implementations of Communication Protocol We offer libraries for controlling Pico-pH using LabView programming language. The libraries and corresponding documentation are free for download from our website. © PyroScience GmbH... -
Page 27: Option 4: Advanced Custom Integration
Pico-pH | Manual OPTION 4: ADVANCED CUSTOM INTEGRATION For advanced custom integration the full USB/UART communication protocol is available on request, allowing custom software full control on all settings, calibration and measurement features of the module. © PyroScience GmbH... -
Page 28: Technical Drawing
Pico-pH | Manual TECHNICAL DRAWING The solder pads have 2.54mm pitch. © PyroScience GmbH... -
Page 29: Specifications
Pico-pH | Manual SPECIFICATIONS General Specifications Dimensions L=59 mm, Ø 17mm (without the optical port) Weight ca. 20 g Power supply min. 3.3 VDC max. 5.0 VDC Connector plug Phoenix Contact PTSM0,5/4-P-2,5 Power consumption -during operation typ. 10 mA -during deep sleep mode typ. - Page 30 Pico-pH | Manual Accuracy +-0.3 °C Range -40 to 125 °C Note: This max. sample rate refers only to the limits of the UART communication. It does not consider the actual response time of the connected optical pH sensor or of the temperature sensor.
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Page 31: Safety Guidelines
Pico-pH | Manual SAFETY GUIDELINES Before using the Pico-pH and its sensors, read carefully the instructions and user manuals. In case of problems or damage, disconnect the instrument and mark it to prevent any further use. Consult PyroScience for advice. There are no serviceable parts inside the device. - Page 32 Pico-pH | Manual CONTACT PyroScience GmbH Tel.: +49 (0)241 5183 2210 Kackertstr.11 Fax: +49 (0)241 5183 2299 52072 Aachen info@pyroscience.com Deutschland www.pyroscience.com www.pyroscience.com...
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