Related Manuals for Endress+Hauser OUSAF44
Summary of Contents for Endress+Hauser OUSAF44
- Page 1 Operating Instructions OUSAF44 Optical sensor combined with flow assembly OUA260 for measurement of UV absorption BA416C/07/EN/13.10 71125870...
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Page 3: Table Of Contents
Maintenance....22 Mercury lamp replacement for OUSAF44 ......23 OUSAF44 reference detector/filter replacement . -
Page 4: Safety Instructions
OUSAF44 Safety instructions Designated use The OUSAF44 sensor is used for measuring the spectral absorbance of process liquids in the ultraviolet region of the electromagnetic spectrum. It is suitable for a variety of applications: • Measurement of protein concentrations • Chromatography control •... -
Page 5: Return
OUSAF44 Safety instructions Return If the sensor has to be repaired, please return it cleaned to the sales center responsible. Please use the original packaging, if possible. Before returning the device, contact your regional sales or service representative to get the local return procedure. - Page 6 Safety instructions OUSAF44 1.5.2 Document symbols È ä 1 This symbol stands for a cross-reference to a certain page (e.g. Page 1). È å 2 This symbol stands for a cross-reference to a certain graphic (e.g. Fig. 2). Additional information, tips...
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Page 7: Identification
OUSAF44 Identification Identification Product structure Sensor OUSAF44 Wavelength 254 nm 280 nm 295 nm 302 nm 313 nm 365 nm Calibration / Validation Standard Easycal™ Lamp approval Standard FM Class 1 Div 1 groups B, C, D ATEX II 2G EEx d IIC T5... -
Page 8: Scope Of Delivery
Identification OUSAF44 Scope of delivery The scope of delivery depends on the ordered version. Isolated order • 1 detector and lamp arm without flow assembly Assembled to flow assembly OUA260 • Detector and lamp arm Operating Instructions depending on the used transmitter If you have any questions, please contact your supplier or your local sales center. -
Page 9: Installation
OUSAF44 Installation Installation Incoming acceptance, transport, storage • Make sure the packaging is undamaged! Inform the supplier about any damage to the packaging. Keep the damaged packaging until the matter has been settled. • Make sure the contents are undamaged! Inform the supplier about damage to the contents. -
Page 10: Installation Conditions
3.2.1 Angle of installation Sensors are designed for in-line use with the related OUA260 flow assembly. The flow assembly can be installed either directly in a process line or in a by-pass line. The OUSAF44 sensor cannot be used without the OUA260. - Page 11 Fig. 2: General dimensions Detector assembly Flow assembly Lamp assembly Detector assembly type Lamp assembly type Standard OUSAF44 w/ ref 60.2 mm (2.37") Standard lamp 142 mm (5.60") Easycal™ 69 mm (2.70") Make sure to leave an additional clearance of approx. 5 cm (2") for installation of the sensor cable.
- Page 12 Installation OUSAF44 Example: OUSAF44 for non-Ex area with triclamp flow assembly mm (inch) a0007106 Fig. 3: Dimensions of OUSAF44-xxAx sensor; dimensions A, B, C, D depend on the process connection size (see table below) Connection size Standard Easycal™ ¼" - ¾"...
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Page 13: Installation Instructions
Installation instructions 3.3.1 Measuring system A complete measuring system is typically comprised of: • Transmitter Memograph CVM40 • An optical sensor, e.g. OUSAF44 • Flow assembly, e.g. OUA260 • Cable set, e.g. OUK40 a0012117 Fig. 4: Example of a measuring system... -
Page 14: Post-Installation Check
When using metallic assemblies and installation equipment, comply with national grounding regulations. If the OUSAF44 is ordered with the OUA260, it will be shipped mounted to the flow assembly and is ready for commissioning. Otherwise, for sensor installation, proceed as follows: Install the flow assembly OUA260 via the process connections into the process. -
Page 15: Wiring
► Prior to beginning any wiring work, make sure voltage is not applied to any of the cables. Electrical connection The OUSAF44 sensor is connected to the transmitter via the pre-terminated and labeled cable set OUK40 (to be ordered separately). -
Page 16: Post-Connection Check
Are the PE distributor rails grounded (if present)? Grounding at place of installation Function Design of OUSAF44 with OUA260 flow assembly a0007111 Fig. 6: Design of OUSAF44 with OUA260 flow assembly Environmental connector Lamp housing OUA260 flow assembly (to be ordered separately) Detector housing... -
Page 17: Measuring Principle
OUSAF44 Function Measuring principle Absorption light method The measuring principle is based on the Lambert-Beer law. There is a linear dependency between the light absorption and the concentration of the absorbing substance. A light source emits radiation through the medium and the transmitted radiation is measured on the detector side. -
Page 18: Calibration
OUSAF44 Calibration Calibration is a means of adapting the transmitter to the characteristic values of the sensor. OUSAF44 has been factory-calibrated, therefore, when first commissioning no calibration is necessary. There are two different calibration procedures: Liquid calibration and Easycal™. Before calibrating, the unit has to be powered up for at least 30 minutes. - Page 19 Function 5.4.2 Easycal™ set up and calibration All OUSAF44 sensors can be fitted with the optional Easycal™ calibration system. The Easycal™ allows NIST traceable calibration without using liquid standards and guarantees fast and precise calibration of the UV system. This option is available in new systems and as a retrofit item for existing units in the field.
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Page 20: Optical Check
The reference rod screws into the detector housing of the sensor, providing partial blockage of the sensor light and therefore simulating absorbance in the optical chain. The cross-sectional view of an OUSAF44 measurement detector shown below illustrates the placement and the blocking effect that the reference rod has to the sensor's detector. - Page 21 OUSAF44 Function a0012854 Fig. 10: Typical inline UV sensor with reference rod Reference rod replaced with a plug screw after use When not being used, the reference rod access hole is plugged with a gasket and stainless steel screw to maintain the environmental integrity of the detector housing. When ordered as a complete measuring loop all standard UV sensors (without Easycal™...
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Page 22: Maintenance
Maintenance OUSAF44 Maintenance Certain maintenance procedures need to be performed for OUSAF44 sensor. The service and maintenance interval time is application dependent. Check list of maintenance! • Lamp replacement • O-ring replacement • Filter (NIST) replacement • Pathlength adjustment • Sensor window and gasket replacement... -
Page 23: Mercury Lamp Replacement For Ousaf44
OUSAF44 Maintenance Mercury lamp replacement for OUSAF44 Whenever maintenance is performed on the sensor, remove all cables and power to the sensor. WARNING Mercury lamp Eye injuries can occur if no eye protection is used. ► Never view the mercury lamp when powered directly without proper eye protection. - Page 24 Maintenance OUSAF44 a0012929 Fig. 13: Illustrative standard lamp replacement procedure Unscrew CCW to remove lamp housing from flow cell. Replace set screw. Do not overtighten. Unscrew lamp assembly CCW to remove lamp and Screw lamp assembly CW to replace lamp assembly into power supply assembly from lamp housing.
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Page 25: Ousaf44 Reference Detector/Filter
OUSAF44 Maintenance OUSAF44 reference detector/filter replacement The reference detector/filter is replaced using the following procedure (refer to figure 15 for a view of the assembly): 2-56 X 3/16" INTERFERENCE 0-ring FILTER TYPICAL VIEW LAMP HOLDER a0012857 Fig. 14: Reference detector/filter replacement 2-56 X 3/16"... -
Page 26: Measurement Filter Replacement
Maintenance OUSAF44 Measurement filter replacement (Easycal™ assembly) When the Easycal™ is returned for recertification, a diagnostic scan of the measurement filter is performed and it is replaced if needed. The measurement filter is replaced using the following procedure (refer to figures 15 and 16 for the exploded view of the assembly): Remove the detector housing from the flow assembly. -
Page 27: Assembly
OUSAF44 Maintenance MEASUREMENT FILTER DETECTOR ASSEMBLY FILTER RETAINING MEASUREMENT FILTER SCREW RETAINING PLATE BACK PLATE a0012859 Fig. 16: Easycal™ measurement detector assembly Detector assembly Measurement filter Filter retaining screw Measurement filter retaining plate Back plate Endress+Hauser... -
Page 28: Measurement Filter Replacement (Standard Assembly)
Maintenance OUSAF44 Measurement filter replacement (standard assembly) The measurement filter is replaced using the following procedure (refer to figure 17 for a cross sectional view of the assembly): Remove the detector housing from the flow assembly. Un-screw the detector assembly from the detector housing as shown. If tight, use the cable connector body flange as a “nut”... -
Page 29: Sensor Window And Gasket Replacement
OUSAF44 Maintenance Sensor window and gasket replacement Sensor optical pathlength is established by the window type(s) of the flow assembly. Windows must be replaced with the same type to maintain pathlength. The illustration below is a typical flow assembly. See figure 22 for the available window types and possible pathlengths for sensors up to 2"... -
Page 30: Sensors Without Precision Optical Pathlength Adjuster Option
Re-assemble the sensor in the reverse order, taking care to cross-tighten the window retaining ring screws evenly to prevent uneven seating. After every re-assembly of an OUSAF44 sensor, it is necessary to carry out a liquid or Easycal™ calibration. - Page 31 OUSAF44 Maintenance Inspect the window area and clean as necessary. Inspect the windows for any signs of abrasive wear or chipping. If any is apparent, replace the windows. Assemble window actuators into window rings, adjusting to their widest position (rotated all the way into the window ring).
- Page 32 Maintenance OUSAF44 Window Ring Window Actuator Install actuator for full engagement Seat Thrust Washer into Actuator. Tighten 4 ea. M4 x 10 socket head screws and lock washer onto flowcell (both sides). Install assembly onto flowcell w/ windows and process sealing o-ring in place.
- Page 33 OUSAF44 Maintenance Pathlength Gauge Pathlength Adjusting Tool Tighten Locking Set Screw after pathlength is adjusted. Insert gauge in place. Adjust each side in small increments on alternating sides until gauge just touches windows. a0012863 Fig. 21: Adjusting pathlength in the flow assembly...
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Page 34: Accessories
Accessories OUSAF44 Accessories In the following sections, you find the accessories available at the time of issue of this documentation. For information on accessories that are not listed here, please contact your local service or sales representation. Flow assembly OUA260 flow assembly for hygienic sensors •... -
Page 35: Trouble-Shooting
OUSAF44 Trouble-shooting Trouble-shooting List of spare parts OUSAF44 Sensor Order no. Identifier 63006614 Replacement mercury lamp, Phosphor coated (280, 295, 302, 313, 365 nm) 63006615 Replacement mercury lamp, uncoated (254 nm) 63009331 Measurement detector assembly (TMW) (for sensors without Easycal™) -
Page 36: List Of Spare Parts Oua260 Flow Assembly
Trouble-shooting OUSAF44 List of spare parts OUA260 Flow assembly Order no. Identifier 71000047 Certified POPL retrofit kit for 0.5 mm pathlength 63011917 Certified POPL retrofit kit for 1 mm pathlength 63009163 Certified POPL retrofit kit for 2 mm pathlength Certified POPL retrofit kit for 5 mm pathlength... - Page 37 OUSAF44 Trouble-shooting Order no. Identifier 63006662 Type 'M' quartz window 63006667 Type 'N' quartz window Endress+Hauser...
- Page 38 Trouble-shooting OUSAF44 a0007180 Fig. 22: Window types and lengths 14.0 mm (0.55") 31.5 mm (1.24") Window types for assemblies with 19.0 mm (0.75") 18.5 mm (0.73") triclamp connection and 1/2" and 3/4" 24.0 mm (0.94") 23.5 mm (0.93") line sizes 23.0 mm (0.91")
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Page 39: Return
OUSAF44 Trouble-shooting Return If the sensor has to be repaired, please return it cleaned to the sales center responsible. Please use the original packaging, if possible. Before returning the device, contact your regional sales or service representative to get the local return procedure. -
Page 40: Technical Data
Technical data OUSAF44 Technical data Input Measured variable UV absorbance in absorbance units (AU) or optical density (OD) Measuring range 0 to 2.5 AU, 0 to 50 OD (depending on optical pathlength) Wavelengths Discrete wavelength at 254, 280, 295, 302, 313 or 365 nm; further versions available... -
Page 41: Mechanical Construction
OUSAF44 Technical data Mechanical construction Dimensions See section "Installation". Sensor Lamp housings UV lamp: 0.58 kg (1.28 lbs) UV lamp with SS-braided cable (1.2 m (4ft)) 3.2 kg (6.66 lbs) and junction box (Ex-proofed sensor): Detector housings Easycal™ detector: 0.65 kg (1.43 lbs) -
Page 42: Index
Measurement filter (standard assembly) ..28 Mercury lamp OUSAF44 ....23 Designated use ......4 Reference detector/filter . - Page 43 Declaration of Hazardous Material and De-Contamination Please reference the Return Authorization Number (RA#), obtained from Endress+Hauser, on all paperwork and RA No. mark the RA# clearly on the outside of the box. If this procedure is not followed, it may result in the refusal of the package at our facility.
- Page 44 BA416C/07/EN/13.10...