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Pentair Greenspan PS7000 User Manual

Pressure sensor
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PENTAIR ENVIRONMENTAL SYSTEMS
Version 1.1

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Summary of Contents for Pentair Greenspan PS7000

  • Page 1 PENTAIR ENVIRONMENTAL SYSTEMS Version 1.1...
  • Page 4 The sensor can be supplied in a variety of standard ranges. The PS7000 has a standard, 2-wire, loop powered, 4-20mAoutput with an option for 0-2.5Vdc suitable for a wide range of Data Loggers, Process Controllers and other third party devices. New features include the ability to re- range the sensor as well as adjust the fluid density and gravity to suit specific applications.
  • Page 5 USB shipped with the goods. The 316 Stainless Steel, PS7000 sensor should only be used in relatively low EC situations. Stainless steel has excellent anti-corrosion properties but care should be taken against possible corrosion in high Chloride or Ferric solutions, water with high iron or sulphate reducing bacteria, or low dissolved oxygen.
  • Page 6 Greenspan warrants all new Greenspan products against defects in materials and workmanship for 12 months from the date of invoice. Products that prove to be defective during the warranty period will be repaired or replaced at the discretion of Greenspan. Under Greenspan warranty conditions;...
  • Page 8 The PS7000 Pressure Sensor utilizes a ceramic-based, capacitive element as the transducer. This is designed to be of rugged construction and incorporates active electronics as an integral part of the transducer substrate to enhance reliability and accuracy. Force applied to the ceramic element, due to the pressure, deforms its shape. This deformation causes a change in capacitance which can be measured by the electronics.
  • Page 9 Another factor affecting calibration accuracy is gravity. The departure from standard gravity in Warwick, Qld is – 0.17%. at latitude 27.973 deg, height 458m above sea level. The PS7000 has a feature to adjust the fluid density and gravity to suit specific applications. *For conditions, see Clause 1.3.8.3 Australian Standard AS1376 Applications in which the Greenspan PS7000 can be used include: ...
  • Page 10 All Greenspan Sensors utilise a specially designed Polyurethane Cable. The cable contains 12 x conductors, 1 x drain wire, and an internal vent tube. The outer jacket is made from UV stabilized Polyurethane and is suitable for all external, underwater or harsh environment applications. This common cable construction is utilized for vented and non-vented sensors and all Greenspan Water Quality Sensors.
  • Page 11 Gauge Sensors are vented to atmosphere so that the effects of changes in barometric or atmospheric pressure do not affect water level readings. Sensors that are not vented to atmosphere are referred to as Absolute Sensors. The primary difference between the two types of sensors is the effect of atmospheric pressure on the water level measurements they provide.
  • Page 12 (Such applications may include, pipeline monitoring, gas bubblers and tanks). The serial breakout adaptor (Greenspan Part # 085-0080) allows connection between the PS7000 and a sensor and PC. The user is able to communicate with the sensor in RS232 mode to perform user field adjustments and calibration via the PS7000 Utility Software (supplied on USB with all PS7000’s purchases).
  • Page 13 Quick Set Up Sensor set up Set the PS1000/7000 as a RS232 instrument 1. Connect the sensor to a PC and run the PS7000 utility. 2. Click Sensor Set Up 3. Click RS232 radio button 4. Click OK Provide physical connections There is a cable available to assist connecting a bare wire sensor to the 7SDI-1000 adapter.
  • Page 14 The sensor is assembled and calibrated to the required range using Ruska Digital Pressure controllers which are externally calibrated in NATA certified laboratories.  The sensor is calibrated at multiple points over its pressure and temperature range (typically 36 points). The calibration is validated at multiple different points (typically 25 points).
  • Page 15 The PS7000 is a 2 wire, loop powered 4-20mA output sensor with an option for 0-2.5Vdc. It is normally powered by an 8-30V DC power supply – which can be battery, solar or Mains Plug Pack. The following diagram illustrates the typical wiring arrangement for the PS7000 with 4-20mA output.
  • Page 16 The following diagram illustrates the typical wiring arrangement for the PS7000 with VOLTAGE output. Wiring for Voltage Output Sensor 8-30VDC (+ve Supply) Ground (-ve Supply) green Signal Output 0-2.5V blue Signal Ground brown Cable Shield yellow/green Serial comms yellow Serial comms...
  • Page 17 Bare Wire to SDI-12 Adapter cable SDI-12 Adapter (included with 7SDI-1000) Part # 7SDI-1000 Sensor cable with Bare Wire connection (+ ve Supply) Signal comms white Ground (-ve Supply) black Greenspan Analogue Sensor Model PS7000 or PS1000 Data Logger or controller with SDI Input...
  • Page 18 Communication with the PS7000 Sensor is performed through the PC’s RS232 serial port via the 085-0080 serial breakout adaptor and supplied software: PS7000 Utility (PS7000 Utility is supplied free of charge on all PS7000 orders Greenspan Part # 7USB-SENSOR) To use the full functions of the software a fully operational sensor with power supply and all communications leads should be available.
  • Page 19 To Load the Software, Place Software CD in drive, and open the Application (exe) file. The main screen is divided into three sections. The top panel consists of a drop-down-list of all available serial ports, a Connect button to connect to / disconnect from the sensor and a Help button to access the online help.
  • Page 20 Click Disconnect to terminate communications with the currently connected sensor. The Sensor Setup screen allows the user to select between analogue or serial output; it also lets the user adjust the number of averaging points. Click advanced button to access more configuration items and to re-calibrate sensor.
  • Page 21 The Advanced Sensor Configuration screen allows the user to modify parameters such as Local Gravity, Specific Gravity and customized engineering units; it also lets the user to re-calibrate the pressure sensor using single point or two-point calibration. Enter a new value directly into the text field. There are two alternatives in specifying a value: Where no temperature compensation is required, deselect Use Full Density Polynomial and enter a fixed value to the Specific Gravity field.
  • Page 22 Use this button to save the current sensor settings to a PC file. This button is enabled only after connection to a sensor has been established. Fully Documented Help Function is available for PS7000 Utility by clicking the Help button or hitting the F1 key...
  • Page 23 Edge of river/stream/lake embankment. Side of boat/vessel. Mounted within a stilling well off stream from main flow. Mounted within drainage channels/pipes. Suspended from dam walls or floating pontoon. Sensor anchored to bed of lake/stream.  The sensor is anchored or held in position or located so it is not subject to any movement during normal operations.
  • Page 24  The sensor is anchored or held in position or located so it is not subject to any movement during normal operations.  Sensor is protected from direct sunlight to avoid high temperature fluctuations  Sensor is protected against high turbulence and possible debris loading during flow events Environmental compatibility should be checked before using the sensors and advice sought from Greenspan if any doubt exists.

  • Page 28: Certificate Of Conformance

    PS7000 Pressure Sensor CERTIFICATE of CONFORMANCE Customer: "Click here & type Customer name" Model No. PS7000 Pressure Sensor (Pentair Environmental Systems material # 700-7000) Sales Order Reference: "Click here & type SO Reference" Serial Number: "Click here & type S/N" Product Information Range "Type Range here"...
  • Page 29 PS7000 Pressure Sensor CERTIFICATE of CONFORMANCE Customer: "Click here & type Customer name" Model No. PS7000 Pressure Sensor (Pentair Environmental Systems material # 700-7000) Sales Order Reference: "Click here & type SO Reference" Serial Number: "Click here & type S/N" Product Information Range "Type Range here"...

  • Page 30: Installation

    ENGINEERING NOTE RELEASE DATE: 06 JUNE 2006 EDITION 1.6 CVS-001, Closed Venting System for Vented Sensors SUBJECT: INTRODUCTION When pressure sensors are deployed, there can be a difference between the atmospheric temperature and the temperature of the sensor at depth. This temperature differential causes a pumping effect to occur whereby moist air from the surface is drawn into the sensor through the vent line.
  • Page 31 Terminal Block DIN Rail Green Blue CVS- Cable Vent Tube NOTE: Number of cable wires will Cut here vary depending on sensor type. Cut & remove tip before use Heat sealed Cable Wires Sensor Cable Millipore Filter Air Inlet Inlet Joiner Tube Cable Vent Tube Figure 1.
  • Page 32 SETUP FOR USE For correct operation of the desiccant system it is necessary to partially inflate the breather bag inside the CVS- 001 to enable it to expand and contract with atmospheric pressure changes. Cut vent tube below tag. See Figure 1. Attach 60ml syringe to joiner tube and withdraw all air from breather bag.