Emerson Rosemount 1408A Reference Manual Download

Page: 88 / 90

Figure C-8: Threshold Principle

0.5

1.0

1.5

2.0

2.5

3.0

150

300

450

600

750

900

A. General threshold

B. Product surface echo

Related information

Adjust the general threshold

Configuration parameters

Reference Manual

May 2021

00809-0200-4480

Rosemount 1408A Level and Flow Transmitter

Summary of Contents for Rosemount 1408A

Page 1: ...Reference Manual 00809 0200 4480 Rev AA May 2021 Rosemount 1408A Level and Flow Transmitter Non Contacting Radar ...

Page 2: ...l in accordance with the applicable standards and code of practice Use the equipment only as specified in this manual Failure to do so may impair the protection provided by the equipment Repair e g substitution of components etc may jeopardize safety and is under no circumstances allowed WARNING Process leaks could result in death or serious injury Handle the transmitter carefully Install and tigh...

Page 3: ...ation 25 4 1 Safety messages 25 4 2 Prepare the electrical connections 25 4 3 Power up transmitter 28 Chapter 5 Configuration 29 5 1 Safety messages 29 5 2 Overview 29 5 3 Connect the transmitter to the IO Link 30 5 4 Get started with your preferred configuration tool 30 5 5 Perform the basic setup 33 Chapter 6 Operation and maintenance 35 6 1 Safety messages 35 6 2 View measurement data and event...

Page 4: ...on 75 B 3 Ordinary location certification 75 B 4 Telecommunication compliance 75 B 5 FCC 76 B 6 IC 76 B 7 Radio Equipment Directive RED 2014 53 EU and Radio Equipment Regulations S I 2017 1206 77 B 8 Radio EMC Republic of Korea 78 Appendix C Configuration parameters 79 C 1 Menu tree 79 C 2 Basic setup 80 C 3 Digital output 81 C 4 Analog output 83 C 5 Geometry 85 C 6 Volume flow 86 C 7 Advanced set...

Page 5: ...ns operation and maintenance techniques Service and troubleshooting provides troubleshooting techniques for the most common operating problems Specifications and reference data supplies reference and specification data Product certifications contains approvals and certifications information Configuration parameters provides extended information about the configuration parameters 1 2 Open source li...

Page 6: ...Introduction Reference Manual May 2021 00809 0200 4480 6 Rosemount 1408A Level and Flow Transmitter ...

Page 7: ...cy of the signal transmitted at that moment resulting in a low frequency signal which is proportional to the distance to the product surface This signal is further processed to obtain fast reliable and highly accurate level measurements Figure 2 1 FMCW method d fin fmax fmin fout fin fout t f A C D B Δf d distance A Frequency GHz B Time s C Transmitted signal D Reflected signal The Rosemount 1408A...

Page 8: ...igned to reduce the influence from disturbing objects where such objects cannot be totally avoided Vertical and inclined structures cause minimal effect since the radar signal is scattered rather than directed back to the antenna 2 4 Application examples Non contacting radar technology is ideal for a wide range of applications as it is maintenance free has a top down installation that reduces the ...

Page 9: ...Open air applications Get reliable level measurements of sumps or ponds regardless of challenging surface and weather conditions Open channel flow Use the Rosemount 1408A for volume flow measurement of water and wastewater in open channels Reference Manual Transmitter overview 00809 0200 4480 May 2021 Reference Manual 9 ...

Page 10: ...connectivity This supports easy integration into any automation system Each IO Link system consists of an IO Link master and one or more IO Link devices sensors and actuators The connection between the master and the device is established via unshielded standard cables using standard connectors such as M12 Process data events and parameters are transferred to the master via IO Link The IO Link mas...

Page 11: ...n IO Link System C A D E B A Industrial ethernet B Programmable logic controller PLC C Industrial Fieldbus D IO Link master E IO Link devices Reference Manual Transmitter overview 00809 0200 4480 May 2021 Reference Manual 11 ...

Page 12: ...Transmitter overview Reference Manual May 2021 00809 0200 4480 12 Rosemount 1408A Level and Flow Transmitter ...

Page 13: ...shall be carried out by suitably trained personnel in accordance with the applicable standards and code of practice Use the equipment only as specified in this manual Failure to do so may impair the protection provided by the equipment Repair e g substitution of components etc may jeopardize safety and is under no circumstances allowed WARNING Process leaks could result in death or serious injury ...

Page 14: ...ctures as possible within the signal beam Do not mount close to or above the inlet stream Multiple Rosemount 1408A transmitters can be used in the same tank without interfering with each other Figure 3 1 Recommended Mounting Position L 3 2 2 Free space requirements If the transmitter is mounted close to a wall or other tank obstruction such as heating coils and ladders noise might appear in the me...

Page 15: ...recommended maximum inclination Figure 3 3 Inclination 90 Max 3 3 2 4 Non metallic tanks Nearby objects outside the tank may cause disturbing radar echoes Wherever possible the transmitter should be positioned so that objects close to the tank are kept outside the signal beam Related information Telecommunication compliance Reference Manual Mechanical installation 00809 0200 4480 May 2021 Referenc...

Page 16: ...Beam width See Table 3 2 for beam width at different distances Table 3 2 Beam Width W Distance D Beam angle α 8 10 6 6 ft 2 m 0 9 ft 0 3 m 1 2 ft 0 4 m 13 1 ft 4 m 1 8 ft 0 6 m 2 3 ft 0 7 m 19 7 ft 6 m 2 8 ft 0 8 m 3 5 ft 1 1 m 26 2 ft 8 m 3 7 ft 1 1 m 4 6 ft 1 4 m 32 8 ft 10 m 4 7 ft 1 4 m 5 8 ft 1 8 m Mechanical installation Reference Manual May 2021 00809 0200 4480 16 Rosemount 1408A Level and ...

Page 17: ...ximum nozzle height H 1 in 25 mm 3 9 in 100 mm 1 5 in 40 mm 5 9 in 150 mm 2 in 50 mm 7 9 in 200 mm 3 in 80 mm 11 8 in 300 mm 4 in 100 mm 15 8 in 400 mm 6 in 150 mm 23 6 in 600 mm 3 2 7 Open air installations The antenna extension must be fitted to the transmitter to comply with open air requirements The antenna extension is included in the bracket mount option Figure 3 6 Antenna Extension Related ...

Page 18: ...information Dimensional drawings 3 3 Mounting preparations 3 3 1 Remove the protective cap The protective cap protects the PTFE sealing from impacts during transport and storage Procedure Before installing carefully remove the protective cap Note Be careful not to scratch or otherwise damage the PTFE sealing Mechanical installation Reference Manual May 2021 00809 0200 4480 18 Rosemount 1408A Level...

Page 19: ...ting paste on the transmitter thread Note The paste must be approved for the application and compatible with the elastomers used 3 Secure the transmitter to the bracket Mounting options A Antenna extension for open air installations B Lock nut A B 46 mm 36 mm Reference Manual Mechanical installation 00809 0200 4480 May 2021 Reference Manual 19 ...

Page 20: ...er the gasket 3 Tighten the bolts and nuts with sufficient torque for the flange and gasket choice 0 75 in 19 mm 4 Apply lubricating paste on the transmitter thread Note The paste must be approved for the application and compatible with the elastomers used Mechanical installation Reference Manual May 2021 00809 0200 4480 20 Rosemount 1408A Level and Flow Transmitter ...

Page 21: ... Procedure 1 Apply anti seize paste or PTFE tape on outer threads according to your site procedures 2 Mount the threaded adapter on the tank 41 mm 3 Apply lubricating paste on the transmitter thread Note The paste must be approved for the application and compatible with the elastomers used Reference Manual Mechanical installation 00809 0200 4480 May 2021 Reference Manual 21 ...

Page 22: ...r on the tank 39 mm Torque 310 in lb 35 N m Note Be careful not to scratch or otherwise damage the PTFE sealing Mechanical installation Reference Manual May 2021 00809 0200 4480 22 Rosemount 1408A Level and Flow Transmitter ...

Page 23: ...The paste must be approved for the application and compatible with the elastomers used 2 Mount the transmitter on the tank 39 mm Torque 310 in lb 35 N m Note Be careful not to scratch or otherwise damage the PTFE sealing Reference Manual Mechanical installation 00809 0200 4480 May 2021 Reference Manual 23 ...

Page 24: ...Mechanical installation Reference Manual May 2021 00809 0200 4480 24 Rosemount 1408A Level and Flow Transmitter ...

Page 25: ...t by suitably trained personnel in accordance with the applicable standards and code of practice Use the equipment only as specified in this manual Failure to do so may impair the protection provided by the equipment Repair e g substitution of components etc may jeopardize safety and is under no circumstances allowed WARNING Process leaks could result in death or serious injury Handle the transmit...

Page 26: ...igital and analog outputs active 4 2 5 Wiring diagram Figure 4 1 Connection 4 1 3 2 BN WH BK BU 1 4 2 3 OUT2 L L OUT1 IO Link Table 4 1 Pin Assignment Pin Wire color 1 Signal 1 BN Brown L 24 V 2 WH White OUT2 Digital output or active 4 20 mA analog output 3 BU Blue L 0 V 4 BK Black OUT1 IO Link Digital output or IO Link mode 1 According to IEC 60947 5 2 Electrical installation Reference Manual May...

Page 27: ...2 BN WH BK BU L L C 4 1 3 2 BN WH BK BU L L D 4 1 3 2 BN WH BK BU L L A 2 x Digital output PnP B 2 x Digital output NpN C 1 x Digital output PnP 1 x Analog output D 1 x Digital output NpN 1 x Analog output Related information Outputs Reference Manual Electrical installation 00809 0200 4480 May 2021 Reference Manual 27 ...

Page 28: ...ted 2 Insert the M12 connector and screw tight See the manufacturer s instruction manual for recommended torque 3 Connect the power supply Related information Ingress protection Electrical installation Reference Manual May 2021 00809 0200 4480 28 Rosemount 1408A Level and Flow Transmitter ...

Page 29: ...out by suitably trained personnel in accordance with the applicable standards and code of practice Use the equipment only as specified in this manual Failure to do so may impair the protection provided by the equipment Repair e g substitution of components etc may jeopardize safety and is under no circumstances allowed WARNING Process leaks could result in death or serious injury Handle the transm...

Page 30: ... via the PLC 5 4 Get started with your preferred configuration tool 5 4 1 IO Link configuration tools Examples Rosemount IO Link Assistant available as accessory FDT frame applications e g PACTware 5 4 2 Rosemount IO Link Assistant Get the latest IODD files The Rosemount IO Link Assistant software checks and lets you download the latest IODDs for your device catalog Prerequisites For an online upd...

Page 31: ...ile Procedure 1 Download the IODD from the IODDFinder portal at Ioddfinder io link com 2 Unzip the IODD package Integrate IODDs into an FDT DTM framework An IODD DTM Interpreter is required to integrate IODDs into an FDT DTM environment e g PACTware Prerequisites The IODD DTM Interpreter is usually included in the FDT DTM software installation package It can also be downloaded from Emerson com Ros...

Page 32: ... the configuration tool and update the device catalog Need help If the new DTM is not added automatically at start up then select View Device Catalog Update Device Catalog Configuration Reference Manual May 2021 00809 0200 4480 32 Rosemount 1408A Level and Flow Transmitter ...

Page 33: ... 3 Select Write to device Related information Reference height 5 5 3 Configure the analog output The transmitter can be set to output the level or volume flow as a 4 20 mA signal Procedure 1 Under Menu select Parameter OUT2 Analog Output 2 In the OUT2 Configuration list select Analog Output 4 20 mA 3 In the Analog Control Variable list select Level or Volume Flow 4 In the Alarm Mode list select Lo...

Page 34: ...Variable list select Level or Volume Flow 6 Select Set Point Configuration and then set the alarm parameters as desired 7 Select Write to device Related information Digital output 5 5 5 Set up the volume flow measurement Procedure 1 Under Menu select Volume Flow 2 In the Volume Flow Calculation Method list select the preferred method Choose from Linearization table Parshall flume Khafagi Venturi f...

Page 35: ...tandards and code of practice Use the equipment only as specified in this manual Failure to do so may impair the protection provided by the equipment Repair e g substitution of components etc may jeopardize safety and is under no circumstances allowed WARNING Process leaks could result in death or serious injury Handle the transmitter carefully Install and tighten process connectors before applyin...

Page 36: ...onics temperature Max electronics temperature The measured maximum electronics temperature Volume Flow The calculated volume flow value 6 2 2 Interpret measurement status A Good or Bad status next to a value is an indication of the reliability or integrity of the data being received not an indication of whether or not the value is within the configured upper or lower ranges A value that triggers a...

Page 37: ...l reset the following parameters to factory settings Measurement recovery time Damping value When returning to Default Mode you will therefore need to reconfigure these parameters if desired Procedure 1 Under Menu select Parameter Service Tools Application Mode 2 Select Enter Demonstration Mode Postrequisites 1 Select Exit Demonstration Mode to return to normal operation Default Mode 2 Verify that...

Page 38: ...Operation and maintenance Reference Manual May 2021 00809 0200 4480 38 Rosemount 1408A Level and Flow Transmitter ...

Page 39: ...with applicable code of practice Inspection and maintenance of this equipment shall be carried out by suitably trained personnel in accordance with the applicable standards and code of practice Use the equipment only as specified in this manual Failure to do so may impair the protection provided by the equipment Repair e g substitution of components etc may jeopardize safety and is under no circum...

Page 40: ...eset 7 2 2 Device software fault Check firmware revision Alarm classification Device status Failure Class Error Possible cause The software has detected an internal error Recommended actions 1 Restart the device 2 Restore default settings and reconfigure the device 3 If the condition persists replace the device Related information Perform a device reset Restore to factory settings Service and trou...

Page 41: ...rm classification Device status Failure Class Error Possible cause The device has detected a configuration error Recommended actions 1 If analog output is used check Upper and Lower Range Values 2 If digital output is used check High and Low Alarm Set Points 3 If condition persists restore default settings and reconfigure the device Related information Upper lower range value Alarm set points Rest...

Page 42: ...tion Restore to factory settings Perform a device reset 7 2 6 Simulation active Check operational mode Alarm classification Device status Functional check Class Warning Possible cause The device is in simulation mode and is not reporting actual information Recommended actions 1 If this behavior is not desired stop simulation mode 2 If the condition persists restart the device Related information U...

Page 43: ...y General Threshold 2 Check device physical installation for instance antenna contamination 3 Consider increasing Measurement Recovery Time parameter for intermittent conditions 4 Restore default settings restart device and reconfigure the device 5 If the condition persists replace the device Related information Analyze the echo peaks Adjust the general threshold Measurement recovery time Restore ...

Page 44: ...of heat Related information Ambient temperature 7 2 9 Device temperature under run Insulate device Alarm classification Device status Out of specification Class Warning Possible cause The electronics temperature is outside the operating range Recommended actions 1 Verify ambient temperature is within the operating range 2 Insulate device Related information Ambient temperature Service and troubles...

Page 45: ...status Out of specification Class Warning Possible cause Supply voltage is too high Recommended actions Verify voltage is 18 30 Vdc at the transmitter terminal 7 2 12 Primary supply voltage under run Check tolerance Alarm classification Device status Out of specification Class Warning Possible cause Supply voltage is too low Recommended actions Verify voltage is 18 30 Vdc at the transmitter termin...

Page 46: ...n Material exposed to tank atmosphere Components of the transmitter 7 2 14 Max EEPROM write cycles expired Check master and restart the device Alarm classification Device status Maintenance required Class Warning Possible cause Frequent writing of parameters from master to device Recommended actions 1 Check the master configuration 2 Restart the device 3 If error persists contact your local Emerso...

Page 47: ...cation Class Error Possible cause The level measurement is outside the configured range for the volume flow Recommended actions Ensure that level values within operating range are included in the volume flow table Reference Manual Service and troubleshooting 00809 0200 4480 May 2021 Reference Manual 47 ...

Page 48: ...ns Verify the tank geometry parameters are configured correctly especially the Reference Height Analyze the Echo Peaks and check General Threshold Restore default settings and reconfigure the device Related information Reference height Analyze the echo peaks Adjust the general threshold Restore to factory settings Service and troubleshooting Reference Manual May 2021 00809 0200 4480 48 Rosemount 1...

Page 49: ...d actions Analyze the Echo Peaks and check General Threshold Remove the disturbing object Put an inclined metal plate on top of the disturbing object Move the transmitter to another position Related information Analyze the echo peaks Adjust the general threshold Mounting position Reference Manual Service and troubleshooting 00809 0200 4480 May 2021 Reference Manual 49 ...

Page 50: ...eshold Increase the Upper Null Zone Remove the disturbing object Move the transmitter to another position Possible cause Product build up on the antenna Recommended actions Clean the antenna Related information Analyze the echo peaks Adjust the general threshold Change the upper null zone Mounting position Service and troubleshooting Reference Manual May 2021 00809 0200 4480 50 Rosemount 1408A Lev...

Page 51: ...B Time C Actual level D Reported level Possible cause Product surface is within the Upper Null Zone and a disturbance echo is interpreted as the product surface Recommended actions Check the setting of the Upper Null Zone Related information Change the upper null zone Reference Manual Service and troubleshooting 00809 0200 4480 May 2021 Reference Manual 51 ...

Page 52: ...le cause Excessive foaming or turbulence Recommended actions Under turbulent conditions with low level rates consider increasing the Damping value Related information Damping value Service and troubleshooting Reference Manual May 2021 00809 0200 4480 52 Rosemount 1408A Level and Flow Transmitter ...

Page 53: ...ctual level D Reported level Possible cause The product surface is close to a suppressed false echo Recommended actions If possible remove the disturbing object Related information Analyze the echo peaks Reference Manual Service and troubleshooting 00809 0200 4480 May 2021 Reference Manual 53 ...

Page 54: ...al level D Reported level Possible cause Damping value is set too high Recommended actions If there is a problem with lag during rapid level changes consider decreasing the Damping value Related information Damping value Service and troubleshooting Reference Manual May 2021 00809 0200 4480 54 Rosemount 1408A Level and Flow Transmitter ...

Page 55: ...C D A Level B Time C Actual level D Reported level Possible cause Upper Range Value is not set correctly Recommended actions Check that the Upper Range Value matches the 100 20 mA level in the tank Related information Upper lower range value Reference Manual Service and troubleshooting 00809 0200 4480 May 2021 Reference Manual 55 ...

Page 56: ...mptom A B C D A Level B Time C Actual level D Reported level Possible cause A strong double bounce echo is interpreted as the product surface Recommended actions Move the transmitter to another position Related information Mounting position Service and troubleshooting Reference Manual May 2021 00809 0200 4480 56 Rosemount 1408A Level and Flow Transmitter ...

Page 57: ...Symptom A B C D A Level B Time C Actual level D Reported level Possible cause Transmitter has locked on a strong tank bottom echo Recommended actions Verify the Reference Height is configured correctly Related information Reference height Reference Manual Service and troubleshooting 00809 0200 4480 May 2021 Reference Manual 57 ...

Page 58: ...sturbance echo which is interpreted as the product surface echo After closing the door the echo is lost and the transmitter reports Level measurement lost The message is cleared when start filling the tank Recommended actions Before opening the manway door disconnect power to the transmitter After closing restart the device Move the transmitter to another position Related information Mounting posi...

Page 59: ...ctions Verify the tank geometry parameters are configured correctly especially the Reference Height and Bottom Offset Related information Reference height Bottom offset 7 4 Managing disturbance echoes There are two general methods for managing disturbance echoes Set general threshold to filter out weak disturbance echoes and noise Increase the Upper Null Zone to block out disturbance echoes at the...

Page 60: ...lyze the echo peaks General threshold 7 4 2 Change the upper null zone The Upper Null Zone defines a zone close to the transmitter where echoes are ignored This zone can be extended to block out disturbing echoes at the top of the tank Prerequisites Note Make sure the Upper Range Value 100 20 mA value is below the Upper Null Zone Measurements are not performed within the Upper Null Zone Procedure ...

Page 61: ...E Product surface echo Related information Upper null zone 7 5 Service and troubleshooting tools 7 5 1 Analyze the echo peaks Measurement problems can be understood by studying the position and amplitude of the different peaks Procedure Under Menu select Diagnosis Echo Peaks Reference Manual Service and troubleshooting 00809 0200 4480 May 2021 Reference Manual 61 ...

Page 62: ...t 7 5 3 Restore to factory settings This function restores the transmitter to factory settings user configuration is overwritten Procedure 1 Under Menu select Parameter Service Tools Maintenance 2 Select Restore Factory Settings 7 5 4 Use the simulation mode It is possible to set the level to a simulated value for testing purposes The simulated value affects both digital and analog output Procedur...

Page 63: ... Select Enter 20 mA Fixed Current Mode to set the analog out to 20 mA b Measure the analog output with the ampere meter c In the 20 mA Measured Current box enter the measured current d Select Write to device e Select Calibrate 20 mA f Measure the analog output with the ampere meter and verify it is within 20 0 01 mA 4 Select Exit Fixed Current Mode 7 6 Service support To expedite the return proces...

Page 64: ...t include a copy of the required Safety Data Sheet SDS for each substance Emerson Instrument and Valve Response Center representatives will explain the additional information and procedures necessary to return goods exposed to hazardous substances Service and troubleshooting Reference Manual May 2021 00809 0200 4480 64 Rosemount 1408A Level and Flow Transmitter ...

Page 65: ...e Minimum 1 update per second typically 5 updates per second Maximum level rate 200 mm s A 1 2 Measuring range Maximum measuring range 33 ft 10 m 2 1 Refers to inaccuracy according to IEC 60770 1 when excluding installation dependent offset See the IEC 60770 1 standard for a definition of radar specific performance parameters and if applicable corresponding test procedures 2 Note that a combinatio...

Page 66: ...ccording to IEC 61298 3 level field with general application Electromagnetic compatibility EMC EMC Directive 2014 30 EU EN 61326 1 NAMUR recommendations NE21 only 4 20 mA output Pressure Equipment Directive PED Complies with 2014 68 EU article 4 3 Radio approvals Radio Equipment Directive 2014 53 EU ETSI EN 302 372 without antenna extension ETSI EN 302 729 with antenna extension and EN 62311 Part ...

Page 67: ...nsumption 2 W normal operation at 24 Vdc no outputs 3 6 W normal operation at 24 Vdc digital and analog outputs active Humidity 0 100 relative humidity non condensing Turn on time 15 s 3 A 2 2 Outputs The transmitter provides two configurable outputs Output 1 Digital output IO Link mode Output 2 Digital output or active 4 20 mA analog output 3 Time from when power is applied to the transmitter unt...

Page 68: ...tions Maximum loop resistance is determined by the voltage level of the external power supply Maximum Loop Resistance 43 5 External Power Supply Voltage 18 600 Ω Figure A 2 Load Limits 18 19 20 21 22 23 25 26 27 28 29 700 600 1100 1000 900 800 1200 30 24 B A 860 1121 A Loop Resistance Ω B External Power Supply Voltage Vdc Specifications and reference data Reference Manual May 2021 00809 0200 4480 ...

Page 69: ...0 0 to 22 5 mA 21 5 mA NAMUR 21 0 mA Analog saturation levels The transmitter will continue to set a current that corresponds to the measurement until reaching the associated saturation limit and then freeze Table A 2 Saturation Levels Level Custom levels NAMUR NE43 default Low 3 5 to 4 0 mA 3 8 mA High 20 0 to 22 5 mA 20 5 mA A 2 5 IO Link specifications IO Link revision 1 1 Transfer type COM2 38...

Page 70: ... Variable 4 20 mA DO1 and DO2 Digital service tools using IODD IO Link PDIn to the PLC Level Distance ullage N A N A N A Volume flow Electronics temperature N A N A N A Signal strength N A N A N A Volume flow calculations Linearization table Parshall flume Khafagi Venturi flume A 2 7 Process pressure 15 to 116 psig 1 to 8 bar Atmospheric pressure at temperatures below 4 F 20 C Specifications and r...

Page 71: ...s of construction that can be expected to perform well in a wide range of applications The Rosemount product information presented is intended as a guide for the purchaser to make an appropriate selection for the application It is the purchaser s sole responsibility to make a careful analysis of all process parameters such as all chemical components temperature pressure flow rate abrasives contami...

Page 72: ...terials Bracket and device holder Stainless steel 316L Antenna extension for open air Stainless steel 316L polyacetal copolymer POM C ELS stainless steel EN 10270 3 1 4310 Lock nut Stainless steel A4 A 3 4 Process connection ISO 228 1 G1 thread A 3 5 Material exposed to tank atmosphere PTFE sealing PTFE fluoropolymer O ring FVMQ G1 thread 316L EN 1 4404 Profile ring FKM 4 IP68 at 9 8 ft 3 m for mo...

Page 73: ...4 Rosemount 1408A Ø 2 32 59 2 99 76 4 76 121 5 79 147 B A A ISO 228 1 G1 thread B M12 connector A coded Dimensions are in inches millimeters Reference Manual Specifications and reference data 00809 0200 4480 May 2021 Reference Manual 73 ...

Page 74: ...for open air installations Dimensions are in inches millimeters A 4 1 Bracket hole pattern Figure A 6 Hole Pattern 0 28 7 0 43 11 1 97 50 Ø 0 28 7 30 Dimensions are in inches millimeters Specifications and reference data Reference Manual May 2021 00809 0200 4480 74 Rosemount 1408A Level and Flow Transmitter ...

Page 75: ...lth Administration OSHA Certificate 80031621 Standards CAN CSA C22 2 No 61010 1 12 UL Std No 61010 1 Markings 18 30 VDC 3 6W The device may only be powered by a power supply unit with a limited energy electric circuit max 30 Vdc output in accordance with CAN CSA C22 2 No 61010 1 12 UL Std No 61010 1 3rd Edition chapter 6 3 1 6 3 2 and 9 4 or class 2 according to CSA 223 UL 1310 B 4 Telecommunicati...

Page 76: ... Canada s licence exempt RSS standard Operation is subject to the following conditions 1 This device may not cause harmful interference 2 This device must accept any interference received including interference that may cause undesired operation 3 The installation of the LPR device shall be done by trained installers in strict compliance with the manufacturer s instructions 4 The use of this devic...

Page 77: ...e à au moins 10 km de l Observatoire fédéral de radioastrophysique OFR de Penticton en Colombie Britannique Les coordonnées de l OFR sont latitude N 49 19 15 longitude O 119 37 12 La personne qui installe utilise un dispositif ne pouvant respecter cette distance de 10 km p ex dans la vallée de l Okanagan Colombie Britannique doit se concerter avec le directeur de l OFR afin d obtenir de sa part un...

Page 78: ...er the influence of an interferer signal For the receiver test that covers the influence of an interferer signal to the device the performance criterion has at least the following level of performance according to ETSI TS 103 361 6 Performance criterion measurement value variation Δd over time during a distance measurement Level of performance Δd 2 mm B 8 Radio EMC Republic of Korea Registration n...

Page 79: ...ut Calibration OUT1 Configuration DO Control Variable Alarm Configuration OUT2 Configuration Analog Control Variable Volume Flow Volume Flow Calculation Method Volume Flow Table Formula Alarm Mode Analog Range Values Upper Range Value 20 mA Lower Range Value 4 mA Alarm On Off Delay Analog Alarm Limits High Alarm Value High Saturation Value Low Saturation Value Low Alarm Value Set Point Configurati...

Page 80: ...n these units C 2 2 Reference height Distance between the Device Reference Point and Zero Level Figure C 2 Reference Height A B C D A B C A Device Reference Point B Reference Height C Zero Level D 0 6 in 15 mm Ensure the Reference Height is set as accurate as possible The transmitter measures the distance to the product surface and subtracts this value from the Reference Height to determine the le...

Page 81: ...level to control the digital output C 3 2 Alarm configuration Alarm delays Alarm on delay The time delay for when the digital output transfers from normal to alarm state Alarm off delay The time delay for when the digital output transfers from alarm state to normal Figure C 3 Example High Alarm with Alarm Delays A B C E F D Off On A Level B Time C SP1 High alarm set point D SP1 Hysteresis high ala...

Page 82: ...nce Hardware faults and measurement values that exceed the alarm set points will trigger alarm without any delay Figure C 4 Behavior of the Alarm On Delay Always A B C Off On D D E Lost surface A B C Off On D E A Level B Time C SP1 High alarm set point D Alarm on delay E Lost surface invalid level C 3 3 Set point configuration High alarm Enable or disable the high alarm Configuration parameters Re...

Page 83: ...ed when the value falls outside the hysteresis zone SP1 Hysteresis high alarm Hysteresis zone for the high alarm SP2 Hysteresis low alarm Hysteresis zone for the low alarm C 4 Analog output C 4 1 Analog control variable Select between volume flow or level to control the analog output C 4 2 Upper lower range value Enter the range values that correspond to the analog output values 4 and 20 mA In nor...

Page 84: ...s detected the transmitter drives the output to selected alarm limit high or low C 4 4 Analog alarm limits High low alarm value The high low alarm current for the analog output when the device enters the alarm mode Related information Analog signal on alarm High low saturation value The device will continue to set a current that corresponds with the measurement until reaching the upper lower limit...

Page 85: ...tion Offset value B Negative Calibration Offset value C Reported level D Actual level Upper null zone The Upper Null Zone defines how close to the transmitter s reference point a level value is accepted You can extend this value to block out disturbing echoes close to the antenna for example from the tank nozzle Note Make sure the 20 mA value is below the Upper Null Zone Measurements are not perfo...

Page 86: ...om Figure C 7 Bottom Offset A B C D A Device Reference Point B Reference Height C Zero Level D Bottom Offset C 6 Volume flow C 6 1 Volume flow calculation method Select the preferred volume flow calculation method The are three options to choose from Linearization table Parshall flume Khafagi Venturi flume Related information Set up the volume flow measurement Configuration parameters Reference Ma...

Page 87: ...cho Timeout parameter controls the maximum time from when measurement is lost e g due to process conditions such as foam or turbulence until it is annunciated If measurement is recovered within the time specified by this parameter then it will not be annunciated C 7 2 Damping value This parameter defines how fast the transmitter reacts to a change of the level value step response The default value...

Page 88: ... 1 5 2 0 2 5 3 0 0 150 300 450 600 750 900 A A General threshold B Product surface echo Related information Adjust the general threshold Configuration parameters Reference Manual May 2021 00809 0200 4480 88 Rosemount 1408A Level and Flow Transmitter ...

Page 89: ...Reference Manual 00809 0200 4480 May 2021 Reference Manual 89 ...

Page 90: ... All rights reserved Emerson Terms and Conditions of Sale are available upon request The Emerson logo is a trademark and service mark of Emerson Electric Co Rosemount is a mark of one of the Emerson family of companies All other marks are the property of their respective owners ...

Search results

Summary of Contents for Rosemount 1408A

Reviews:

Related manuals for Rosemount 1408A

Brands by name

Popular brands

Emerson Rosemount 1408A, Reference Manual

Search results

Summary of Contents for Rosemount 1408A

Reviews:

Related manuals for Rosemount 1408A

Brands by name

Popular brands