Related Manuals for Watts HF Scientific AccUView LED Ex
Summary of Contents for Watts HF Scientific AccUView LED Ex
- Page 1 Installation Instructions AccUView LED Ex Online UV Analyzer for Hazardous Environments IS-HF-AccUViewLEDEx-100125 Rev 0 2020-09...
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Page 2: Table Of Contents
Table of Contents Understanding Safety Information ............3 Flow Switch ..................12 Modbus Communication ..............12 Application of Council Directive ............4 Modbus RS-485 Output & Commands ........12 Standards to Which Conformity is Declared: ........4 Introduction to the Unit ...............5 Coils ..................12 Overview..................5 Valid Commands ...............12 Format ..................12 Specifications .................5 Unpacking and Inspection of the Instrument ........5... -
Page 3: Understanding Safety Information
Understanding Safety Information This manual contains safety and use instructions that must be followed during the installation, commissioning, operation, care and maintenance and service of the AccUView LED Ex. All responsible personnel must read this manual prior to working with this instrument and should familiarize themselves with the following safety symbols, signals and pictorials. -
Page 4: Application Of Council Directive
Declaration of Conformity Application of Council Directive Standards to Which Conformity is Declared: Product Safety - Tested and passed: LC (Part 1: General Requirements UL61010-1 Issued May 11 2012 Ed 3 and CAN/CSA C22.2 #61010-1 issued May 11, 2012) Emissions & Immunity - Tested and passed EN 61326-1:2013 Manufacturer’s Name: HF scientific, inc. -
Page 5: Introduction To The Unit
Introduction to the Unit Instrument Labels Overview The following labels should be applied to the outside of the enclosure. The AccUView LED Ex Online UV Analyzer has been specially designed for operation in hazardous atmospheres, meeting IECEx and ATEX Purpose Location Label ratings as stated in the specifications. -
Page 6: Installation
Installation Plumbing & Air Connections Site Selection and Mounting Process Water Requirements The instrument is designed for wall mounting. The instrument should be mounted at eye level and be easily accessible for operation and Required Head Pressure 6.9kPa (1 PSI) service. -
Page 7: Power
Power 4-20 mA The 4-20 mA output is driven by a 15 VDC power source and can drive Modbus / 4-20 recorder loads up to 600 ohms. Do not run 4-20 mA cables in the Output Terminal same conduit as power. Operation of this output is covered in the Setting the 4-20 mA section. -
Page 8: Measurements
Measurements The instrument is designed to store the last reading prior to calibrating. The 4-20 mA is held at this stored reading and will not change until calibration is complete. 30 seconds after completion of the calibration Arrow Indicates the AccUView LED Ex will start taking online measurements. These Measured Normal Operation measurements will be averaged with the stored reading (depending... -
Page 9: Calibration Error
Calibration Error Setting the 4-20 mA If this screen is displayed after calibration is complete, the internal If the 4-20 mA output was selected, you will be asked to set the 4mA diagnostics have determined that the calibration fluid or the flow (4MA) and 20mA (20MA) %T or ABS limit levels. -
Page 10: Setting The Address
Setting the Address Extended Settings The last selection is the address. The address is important when multiple instruments are wired on a single string. Each instrument MUST have a unique address. The factory default is Address 1. Screen Display - Extended Settings The last few settings are grouped together to prevent them being unintentionally changed. -
Page 11: Ultrasonic Cleaning
Ultrasonic Cleaning RS-485 Parameter - Stop Bits This option is used to continuously clean the flow through cuvette. It is not intended to clean cuvettes that are already dirty or replace manual cleaning entirely. The system will increase the time between cleanings dramatically. -
Page 12: 4Ma Adjustment
Modbus Communication 4mA Adjustment The AccUView LED Ex uses a communication protocol called Modbus. A company, called Modicon, developed the Modbus protocol for use with their programmable controllers. Since that time, Modbus has evolved into a common communication protocol in the industry. The communication method involves using a master-slave technique, in which there is one master and several slaves. -
Page 13: Input Status
Input Status Definitions These single-bit values are readable from the master. The data will be returned with the lowest address input status in the LSB of the data. Address Type Register Value Default Function Unused bits in the data will be set to 0. 40001, 40002 Float Offset value... -
Page 14: Input Registers
Routine Maintenance Input Registers These 16-bit values are readable by the master. The data is stored with WARNING the MSB first and then the LSB. Specific condition of use: Parts of the enclosure are non- conducting and exceed the maximum permissible resistance Valid Commands according to the IEC 60079-0. -
Page 15: Troubleshooting
Troubleshooting Readings - Troubleshooting Symptom Possible Cause Solution AccUView LED Ex Fault Detection Readings are lower than Bubbles in the solution. Ensure that the drain vent is The AccUView LED Ex performs continuous diagnostic monitoring. expected. open and not obstructed. There are 3 levels of fault detection: warnings, errors and failures. -
Page 16: Warranty
Warranty HF scientific, LLC (the “Company”) warrants each product to be free from defects in material and workmanship under normal usage for a period of two (2) years from first use or three (3) years from date of invoice, whichever occurs first. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge.
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