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Model 6081-P Wireless pH/ORP T ransmitter Instruction Manual PN 51-6081P/rev .A November 2008.
ESSENTIAL INSTRUCTIONS READ THIS P AGE BEFORE PROCEEDING! Rosemount Analytical designs, manufactures, and tests its product s to meet many national and international standards.
About This Document This manual contains instructions for inst allation and operation of the Model 6081-P Wireless pH/ORP T ransmitter . The following list provides notes concerning all revisions of this document. Rev . Level Date Notes A 1 1/08 This is the initial release of the product manual.
QUICK ST ART GUIDE FOR MODEL 6081 WIRELESS pH TRANSMITTER D 1. Refer to Section 2.0 Installation for inst allation instructions. 2 . Wire the pH or ORP sensor to the transmitter . Refer to the sensor instruction sheet for details. 3. Once the connections are secure and verified, install the Power Module to power to the transmitter .
E Quick Start Menu English Francais Espanol >> Deutsch Italiano Portuguese >> Measure? pH Redox ORP Use Preamp in? Xmtr Sensor Diagnostics? On Off Measure update rate: 1min Temperature in?.
F FIGURE 1-1. MENU TREE FOR MODEL 6081 pH W ireless TRANSMITTER.
MODEL 6081-P pH/ORP T ABLE OF CONTENTS MODEL 6081-P pH/ORP WIRELESS TRANSMITTER T ABLE OF CONTENTS Section Title Page 1.0 DESCRIPTION AND SPECIFICA TIONS ................................................................ 1 1.1 Features and Applications .
MODEL 6081-P pH/ORP T ABLE OF CONTENTS T ABLE OF CONTENTS CONT’D ii 8.0 PROGRAMMING THE TRANSMITTER .................................................................. 25 8.1 General ...................................................................
iii MODEL 6081-P pH/ORP T ABLE OF CONTENTS LIST OF FIGURES Number Title Page 2-1 W all Mounting Insatallation Model 6081 ................................................................... 8 2-2 Pipe Mounting Insatallation Model 6081 .................
MODEL 6081-P pH/ORP T ABLE OF CONTENT iv This p age left blank intentionally.
MODEL 6081-P pH/ORP SECTION 1.0 DESCRIPTION AND SPECIFICA TIONS SECTION 1.0 DESCRIPTION AND SPECIFICA TIONS 1 • HIGH ACCURACY AND RELIABILITY for monitoring applications • SELF-ORGANIZING NETWORK .
MODEL 6081-P pH/ORP SECTION 1.0 DESCRIPTION AND SPECIFICA TIONS 2 1.3 SPECIFICA TIONS - WIRELESS Output: WirelessHART V7 T ransmit Rate: User selectable, 1/sec. to 1/60 min (via 1420 Wireless Gateway or AMS) Measurement up date rate: 1/sec. to 1/10 min Antenna: PBT/PC integrated omni-directional antenna Radio Frequency: 2.
3 MODEL 6081-P pH/ORP SECTION 1.0 DESCRIPTION AND SPECIFICA TIONS 1.5 Product Certifications T elecommunication Compliance All wireless devices require certification to ensure that they adhere to regulations regarding the use of the RF spectrum. Nearly every country requires this type of product certification.
MODEL 6081-P pH/ORP SECTION 1.0 DESCRIPTION AND SPECIFICA TIONS 1.7 ASSET MANAGEMENT SOLUTIONS Asset Management Solutions (AMS) is software that help s plant personnel better monitor the performance of ana- lytical instruments, pressure and temperature transmitters, and control valves.
MODEL 6081-P pH/ORP SECTION 2.0 INST ALLA TION SECTION 2.0 INST ALLA TION 2.1 Considerations 2.2 Unp acking and Inspection 2.3 Pre-Inst allation Set Up 2.4 Mechanical Inst allation 2.5 Ground the T ransmitter 2.6 Power Module Inst allation 2.1 CONSIDERA TIONS The transmitter can be commissioned before or after inst allation.
6 2.3 PRE-INST ALLA TION SETUP 2.3.1 T emperature Element The Model 6081-P pH/ORP transmitter is compatible with sensors having Pt 100 and Pt 1000. Sensors from other manufacturers may have a Pt 1000 RTD. For Rosemount Analytical sensors, the type of temperature element in the sensor is printed on the tag att ached to the sensor cable.
7 W ARNING Failure to follow these installation guidelines could result in death or serious injury . • Make sure only qualified personnel perform the installation.
8 MODEL 6081-P pH/ORP SECTION 2.0 INST ALLA TION 2.4.2 Mounting on a Flat Surface. Figure 2-1. W all Mounting Installation Model 6081. Use Pipe/W all Mounting Bracket Kit, PN 23820-00 Note: PN 23820-00 mounting bracket kit includes mounting hardware for pipe mounting only .
9 MODEL 6081-P pH/ORP SECTION 2.0 INST ALLA TION 2.4.3 Pipe Mounting. The pipe mounting kit (PN 23820-00/01) accommodates 1-1/2 to 2 in. pipe. Figure 2-2.
10 2.6 POWER MODULE INST ALLA TION The section describes the procedure for installation of the power module (p art number 00753-9220-0001). The power module should stored in a safe place with a controlled environment until the Model 6081 is ready for live operation.
4. With gentle pressure, insert the keyed connector on the power module into the receptacle (labeled Power Module Connection on the drawing). The power module seat s in the connection receptacle with an o-ring. 5. Confirm that the power module is fully inserted in the receptacle and properly aligned with the surrounding terminal block.
12 This p age left blank intentionally MODEL 6081-P pH/ORP SECTION 2.0 INST ALLA TION.
MODEL 6081-P pH/ORP SECTION 3.0 WIRING SECTION 3.0 SENSOR WIRING 3.1 GENERAL INFORMA TION pH and ORP sensors without preamp s manufactured by Rosemount Analytical can be wired directly to the Model 6081-P wireless transmitter . 3.2 SENSOR WIRING T o assist in sensor wiring, please refer to the one of the following resources: 1.
14 MODEL 6081-P pH/ORP SECTION 3.0 WIRING This p age left blank intentionally.
15 MODEL 6081-P pH/ORP SECTION 4.0 INTRINSICALL Y SAFE & EXPLOSION PROOF 15 SECTION 4.0 INTRINSICALL Y SAFE INST ALLA TION This p age lef t blank intentionally.
16 MODEL 6081-P pH/ORP SECTION 4.0 INTRINSICALL Y SAFE & EXPLOSION PROOF This p age left blank intentionally.
17 MODEL 6081-P pH/ORP SECTION 5.0 COMMISSIONING SECTION 5.0 COMMISSIONING 5.1 Network Communications 5.2 Device Network Configuration 5.3 V erify Operation 5.1 NETWORK COMMUNICA TIONS The Model 6081 will receive any HART communications from a handheld Field Communicator , or AMS.
18 MODEL 6081-P pH/ORP SECTION 5.0 OPERA TION WITH REMOTE CONTROLLER 5.3 VERIFY OPERA TION Operation can be verified in three locations, at the device via the Local Display , using the 375 Field Communicator , or at the Gateway via the 1420 Wireless Gateway’s integrated web server .
19 MODEL 6081-P pH/ORP SECTION 6.0 DISPLA Y AND OPERA TION SECTION 6.0 DISPLA Y AND OPERA TION 6.1. DISPLA Y The Model 6081 has a two-line display . Generally , the user can pro- gram the transmitter to show one of three displays. If the transmitter has been configured to measure ORP or Redox, similar displays are avail- able.
20 6.3 MENUS - pH The Model 6081 pH transmitter has four menus: CALIBRA TE, PROGRAM, SIM PV , and DISPLA Y . Under the Calibrate and Program menus are several sub-menus. For example, under CALIBRA TE, the sub-menus are T emperature and pH or ORP/Redox.
21 MODEL 6081-P pH/ORP SECTION 6.0 DISPLA Y AND OPERA TION 6.5 SECURITY 6.6.1 How the Security Code Works Use security codes to prevent accidental or unwanted changes to program settings, displays, and calibration. T wo three-digit security codes can be used to do the following… a.
22 MODEL 6081-P pH/ORP SECTION 6.0 DISPLA Y AND OPERA TION This p age left blank intentionally 22.
23 MODEL 6081-P pH/ORP SECTION 7.0 OPERA TION WITH MODEL 375 7.1 Note on Model 375 HART Communicator 7.2 Connecting the HART Communicator 7.3 Operation SECTION 7.0 OPERA TION WITH MODEL 375 7.1 Note on Model 375 HART Communicator The Model 375 HART Communicator is a product of Emerson Process Management, Rosemount Inc.
24 7.3 Operation 7.3.1 Off-line and On-line Operation The Model 375 Communicator features off-line and on-line communications. On-line means the communicator is connected to the transmitter in the usual fashion. While the communicator is on line, the operator can view meas- urement data, change program settings, and read diagnostic messages.
25 MODEL 6081-P pH/ORP SECTION 8.0 PROGRAMMING THE TRANSMITTER SECTION 8.0 PROGRAMMING THE TRANSMITTER 8.1 General 8.2 Changing St art-up Settings 8.3 Choosing and Configuring the Analytical Measurement 8.4 Choosing T emperature Unit s and Manual or Auto T emperature Compensation 8.
26 MODEL 6081-P pH/ORP SECTION 8.0 PROGRAMMING THE TRANSMITTER 8.3 CHOOSING AND CONFIGURING THE ANAL YTICAL MEASUREMENT 8.3.1 Purpose This section describes how to do the following: 1. Configure the transmitter to measure pH, ORP , or Redox. 2. Determine the location of the preamp.
27 MODEL 6081-P pH/ORP SECTION 8.0 PROGRAMMING THE TRANSMITTER 8.3.3 Procedure to configure: Measurement. T o choose a menu item, move the cursor to the item and press ENTER. T o store a number or setting, press ENTER. 1. Press MENU. The main menu screen appears.
28 MODEL 6081-P pH/ORP SECTION 8.0 PROGRAMMING THE TRANSMITTER 8.4 CHOOSING TEMPERA TURE UNITS AND MANUAL OR AUTOMA TIC TEMPERA TURE COMPENSA TION 8.4.1 Purpose This section describes how to do the following: 1. Choose temperature display units (°C or °F).
29 MODEL 6081-P pH/ORP SECTION 8.0 PROGRAMMING THE TRANSMITTER 8.5.2 Procedure: Setting a security code. 1. Press MENU. The menu screen appears. Choose Program . 2. Choose >> . 3. Choose Security . 4. Choose Calib or Config . a. If you chose Calib , enter a three-digit security code.
30 MODEL 6081-P pH/ORP SECTION 8.0 PROGRAMMING THE TRANSMITTER 8.6 MAKING HART RELA TED SETTINGS For more information refer to Sec. 1.0 8.7 RESETTING F ACTOR Y CALIBRA TION AND F ACTOR Y DEF AUL T SETTINGS 8.7.1 Purpose This section describes how to install factory calibration and default values.
31 MODEL 6081-P pH/ORP SECTION 8.0 PROGRAMMING THE TRANSMITTER 8.8 SELECTING A DEF AUL T SCREEN AND SCREEN CONTRAST 8.8.1 Purpose This section describes how to do the following: 1. Set a default screen. The default screen is the screen shown during normal operation.
32 This p age left blank intentionally MODEL 6081-P pH/ORP SECTION 8.0 PROGRAMMING THE TRANSMITTER 32 8.9 CHOOSING A DISPLA Y TIMEOUT 8.9.1 Purpose The local transmitter screen will timeout to preserve power module life. The transmitter will continue to receive measurement inputs and continue to transmit to the wireless network as programmed.
33 MODEL 6081-P pH/ORP SECTION 9.0 CALIBRA TION – TEMPERTURE SECTION 9.0 CALIBRA TION — TEMPERA TURE 9.1 INTRODUCTION The Calibrate Menu allows the user to calibrate the pH, ORP (or redox), and temperature response of the sensor . 9.2 CALIBRA TING TEMPERA TURE 9.
34 MODEL 6081-P pH/ORP SECTION 9.0 CALIBRA TION – TEMPERTURE 9.2.2 Procedure 1. Remove the sensor from the process. Place it in an insulated container of water along with a calibrated ther- mometer . Submerge at least the bottom two inches of the sensor .
35 MODEL 6081-P pH/ORP SECTION 10.0 CALIBRA TION – PH SECTION 10.0 CALIBRA TION — pH AND ORP 10.1 INTRODUCTION For pH sensors, two-point buffer calibration is st andard. Both automatic calibration and manual calibration are available. Auto calibration avoids common pitfalls and reduces errors.
36 MODEL 6081-P pH/ORP SECTION 10.0 CALIBRA TION – PH FIGURE 10-1. Calibration Slope and Offset During automatic calibration, the transmitter also measures noise and drift and does not accept calibration dat a until read- ings are stable.
37 MODEL 6081-P pH/ORP SECTION 10.0 CALIBRA TION – PH 10.2 PROCEDURE — AUTO BUFFER CALIBRA TION 1. Obtain two buf fer solutions. Ideally , the buffer values should bracket the range of pH values to be measured. 2. Remove the pH sensor from the process liquid.
38 10.3 PROCEDURE — MANUAL TWO-POINT BUFFER CALIBRA TION 1. Obtain two buf fer solutions. Ideally , the buffer values should bracket the range of pH values to be measured.
39 MODEL 6081-P pH/ORP SECTION 10.0 CALIBRA TION – PH 10.4 PROCEDURE — ST ANDARDIZA TION 1. The pH measured by the transmitter can be changed to match the reading from a second or referee instru- ment. The process of making the two readings agree is called st andardization.
40 10.5 PROCEDURE — ENTERING A KNOWN SLOPE V ALUE. 1. If the electrode slope is known from other measurements, it can be entered directly into the transmitter .
41 MODEL 6081-P pH/ORP SECTION 10.0 CALIBRA TION – PH 10.6 ORP CALIBRA TION 10.6.1 Purpose 1. For process control, it is often important to make the measured ORP agree with the ORP of a st andard solu- tion. 2. During calibration, the measured ORP is made equal to the ORP of a standard solution at a single point.
This p age left blank intentionally 42 MODEL 6081-P pH/ORP SECTION 10.0 CALIBRA TION – PH.
43 MODEL 6081-P pH/ORP SECTION 1 1.0 MAINTENANCE SECTION 1 1.0 MAINTENANCE 1 1.1 OVERVIEW This section gives general procedures for routine maintenance of the 6081-P pH/ORP transmitter and pH and ORP sensors. The transmitter needs almost no routine maintenance.
44 MODEL 6081-P pH/ORP SECTION 1 1.0 MAINTENANCE 1 1.3 pH SENSOR MAINTENANCE 1 1.3.1 Frequency of Cleaning The frequency at which a sensor should be inspected and cleaned can be determined only by experience. If the process liquid coats or fouls the sensor , frequent cleaning may be necessary .
45 1 1.3.3 Checking the Reference Electrode. Some processes contain subst ances, for example, sulfides, that poison the reference electrode. Poisoning alters the electrode potential.
46 1 1.4 ORP SENSOR MAINTENANCE 1 1.4.1 Frequency of Cleaning The frequency at which an ORP sensor should be inspected and cleaned can be determined only by experience. If the process liquid coats or fouls the sensor , frequent cleaning may be necessary .
47 1 1.6 POWER MODULE REPLACEMENT Expected power module (part number 00753-9220-0001) life is two years at reference conditions. This section describes the procedure for replacement of power module (part number 00753-9220-0001).
48 This p age left blank intentionally 48 MODEL 6081-P pH/ORP SECTION 1 1.0 MAINTENANCE 1 1.6.1 Handling Considerations The power module with the wireless unit contains 2 “C” size primary lithium/thionyl chloride batteries. Each power module contains approximately 2.
49 MODEL 6081-P pH/ORP SECTION 12.0 RETURN OF MA TERIALS SECTION 12.0 RETURN OF MA TERIAL 12.1 GENERAL. T o expedite the repair and return of instruments, proper communication between the customer and the factory is important. Call 1-949-757-8500 or 1-800-854-8257 for a Return Materials Authorization (RMA) number .
50 This p age left blank intentionally MODEL 6081-P pH/ORP SECTION 12.0 RETURN OF MA TERIALS.
51 W ARRANTY Goods and part(s) (excluding consumables) manufactured by Seller are warranted to be free from defect s in workman- ship and material under normal use and service for a period of twelve (12) months from the date of shipment by Seller . Consumables, pH electrodes, membranes, liquid junctions, electrolyte, O-rings, etc.
Credit Cards for U.S. Purchases Only . The right people, the right answers, right now . ON-LINE ORDERING NOW A V AILABLE ON OUR WEB SITE http://www .raihome.com Specifications subject to change without notice. Emerson Process Management Liquid Division 2400 Barranca Parkway Irvine, CA 92606 USA T el: (949) 757-8500 Fax: (949) 474-7250 http://www .
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