Model 1181 PBDissolved Oxygen Two-Wire TransmitterInstruction ManualPN 51-1181PB/rev.AApril 2003
62.6 DISSOLVED OXYGEN SENSOR. The sensorshould be installed in San environment where thetemperature remains between 0 and 44°C (32-110°F).It is used i
7FIGURE 2-1 Mounting and Dimensional DrawingMODEL 1181 PB SECTION 2.0INSTALLATION
8MODEL 1181 PB SECTION 2.0INSTALLATIONFIGURE 2-2. Schematic System, F.M. Explosion Proof ApprovedDWG. NO. REV.1400155 C
9MODEL 1181 PB SECTION 2.0INSTALLATIONFIGURE 2-3. Transmitter WiringPower Wiring (TB1)TB1-1, Loop Signal [Power Supply (+)VDC]*TB1-2, Meter (+) RedTB1
10MODEL 1181 PB SECTION 2.0INSTALLATIONFIGURE 2-4. Schematic System, F.M. I.S. Approved-Entity (1 of 3)
11MODEL 1181 PB SECTION 2.0INSTALLATIONFIGURE 2-4. Schematic System, F.M. I.S. Approved-Entity (2 of 3)
12MODEL 1181 PB SECTION 2.0INSTALLATIONFIGURE 2-4. Schematic System, F.M. I.S. Approved-Entity (3 of 3)
13MODEL 1181 PB SECTION 2.0INSTALLATIONFIGURE 2-5. Schematic System, CSA I.S. Approved-LoopDWG. NO. REV.1400157 Bss3 APPROVED FOR CLASS 1, DIVISION 1,
14MODEL 1181 PB SECTION 2.0INSTALLATIONFIGURE 2-6. Flow Chamber with Sensor Dimensions
15MODEL 1181 PB SECTION 2.0INSTALLATIONFIGURE 2-7. Typical Installation with Siphon Breaker
DANGERHAZARDOUS AREA INSTALLATIONINTRINSICALLY SAFE INSTALLATIONInstallations in hazardous area locations mustbe carefully evaluated by qualified on s
16MODEL 1181 PB SECTION 3.0DESCRIPTION OF CONTROLSSECTION 3.0DESCRIPTION OF CONTROLS3.1 DESCRIPTION OF CONTROLS.3.1.1 Range Selector Switch. A set of
17MODEL 1181 PB SECTION 3.0DESCRIPTION OF CONTROLSFIGURE 3-2. Display PCB
18MODEL 1181 PB SECTION 3.0DESCRIPTION OF CONTROLSFIGURE 3-3. External Zero and Span Adjust
19MODEL 1181 PB SECTION 3.0DESCRIPTION OF CONTROLSFIGURE 3-4. Digital Display
20MODEL 1181 PB SECTION 4.0CONFIGURATIONSECTION 4.0CONFIGURATION4.1 GENERAL The Model 1181PB is factory calibratedto measure 0-200 ppb dissolved oxyge
21MODEL 1181PB SECTION 5.0START UP, AND CALIBRATIONSECTION 5.0START UP AND CALIBRATION5.1 GENERAL. This section provides the start-up andcalibration p
22MODEL 1181PB SECTION 5.0START UP, AND CALIBRATION5.3.2 Air Calibration Adjustment for Transmitterswith LCD Digital Display (Code 06).1. Adjust the C
23MODEL 1181 PB SECTION 6.0THEORY OF OPERATIONSECTION 6.0THEORY OF OPERATION6.1 MODEL 1181PB. The Model 1181PB Two-WireTransmitter automatically and c
24MODEL 1181 PB SECTION 6.0THEORY OF OPERATION6.2 DISSOLVED OXYGEN MEASUREMENT SENSORRosemount Analytical utilizes the amperometricmembrane technique
25MODEL 1181 PB SECTION 6.0THEORY OF OPERATIONSince dry air contains 20.95 oxygen by volume,regardless of the barometric pressure, the partialpressure
iModel 1181 PB TABLE OF CONTENTSMODEL 1181 PBTWO-WIRE TRANSMITTERTABLE OF CONTENTSSection Title Page1.0 DESCRIPTION AND SPECIFICATIONS ...
26MODEL 1181PB SECTION 7.0DISASSEMBLY/ASSEMBLY PROCEDURESECTION 7.0DISASSEMBLY/REASSEMBLY PROCEDURE7.1 DISASSEMBLY PROCEDURE. Disconnect thepower to t
27SYMPTOM PROBLEM ACTION1. Abnormally high O2a. Hole in membrane Replace membranereadings (inability tocalibrate) b. Gold cathode loose Replace sensor
28MODEL 1181 PB SECTION 8.0TROUBLESHOOTING/MAINTENANCE8.3 MAINTENANCE. Most routine maintenanceinvolves the sensor. Sensor maintenance consists ofperi
29MODEL 1181 PB SECTION 8.0TROUBLESHOOTING/MAINTENANCE4. The membrane assembly consists of a Teflonmembrane and three associated parts: a holder,a ret
30MODEL 1181 PB SECTION 8.0TROUBLESHOOTING/MAINTENANCE8.3.2 Rejuvenating The Gold Cathode. Typically, thegold cathode is rejuvenated during the rechar
31MODEL 1181 PB SECTION 9.0SPARE PARTSSECTION 9.0SPARE PARTSItem No. Part Number Description Qty.1 3002425 Cover (for Blind Model) 21 3002425 Cover (f
32MODEL 1181 PB SECTION 9.0SPARE PARTSFIGURE 9-1. Model 1181PB Two-Wire Transmitter Parts
33MODEL 1181PB SECTION 10.0RETURN OF MATERIALSECTION 10.0RETURN OF MATERIAL10.1 GENERAL. To expedite the repair and return ofinstruments, proper commu
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WARRANTYSeller warrants that the firmware will execute the programming instructions provided by Seller, and that the Goods manufacturedor Services pro
iiModel 1181 PB TABLE OF CONTENTSTABLE OF CONTENTS (CONT'D)LIST OF FIGURESSection Title Page2-1 Mounting and Dimensional Drawing...
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1MODEL 1181 PB SECTION 1.0GENERAL DESCRIPTION AND SPECIFICATIONSSECTION 1.0DESCRIPTION AND SPECIFICATIONS• TWO-WIRE FIELD MOUNTED TRANSMITTERS. Ideal
2MODEL 1181 PB SECTION 1.0DESCRIPTION AN SPECIFICATIONS1.2 PHYSICAL SPECIFICATIONS –GENERALEnclosure: NEMA 4X, weatherproof and corrosion-resistant, N
3MODEL 1181 PB SECTION 1.0DESCRIPTION AN SPECIFICATIONSThe Model 1181PB Transmitter measures dissolvedoxygen in parts per billion. Switch selectable r
4MODEL 1181 PB SECTION 2.0INSTALLATIONSECTION 2.0INSTALLATION2.1 UNPACKING AND INSPECTION. Before openingthe shipping carton, inspect the outside of t
5MODEL 1181 PB SECTION 2.0INSTALLATION2.4 WIRING-GENERAL. The transmitter is equippedwith two (2) ¼ -inch conduit openings, one on eachside of the hou
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