Related Manuals for Honeywell Enraf VITO
Summary of Contents for Honeywell Enraf VITO
- Page 1 Instruction manual VITO interface and average temperature (and water) probes for 854 servo, 97x SmartRadar and 877 FDI...
- Page 3 854 servo, 97x SmartRadar and 877 FDI April 2013 Part no.: 4416.655 Revision 6 Enraf B.V. P.O. Box 812 2600 AV Delft Netherlands Tel. : +31 15 2701100 : +31 15 2701111 E-mail [email protected] Website http://www.honeywellenraf.com Instruction manual VITO Page 1...
- Page 4 ___________________________________________________________________________ Copyright 2006 - 2013 Enraf B.V. All rights reserved Reproduction in any form without the prior consent of Enraf B.V. is not allowed. This manual is for information only. The contents, descriptions and specifications are subject to change without notice. Enraf B.V. accepts no responsibility for any errors that may appear in this manual.
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Page 5: Preface
This manual is intended for technicians involved with the commissioning and service of average temperature probes, connected via the Honeywell Enraf 762 VITO Interface unit to 854 servo level gauges, the 97x SmartRadar level gauges or the 877 Field Display & Interface. -
Page 6: Table Of Contents
___________________________________________________________________________ Table of Contents Preface ............................3 Introduction VITO Interface and average temperature probes ........6 Average temperature measurement with VITO temperature probes ......8 Introduction VITO temperature probes ....................8 Commissioning of VITO temperature probe .................... 9 2.2.1 Average temperature settings ........................ 10 2.2.2 Additional temperature settings for 877 FDI................... - Page 7 ___________________________________________________________________________ Troubleshooting ............................33 4.4.1 Temperature error (item EM)........................33 4.4.2 Temperature status request (item MQ) ....................33 4.4.3 Temperature pointer (items VP and VV) ....................34 Water bottom measurement ..................35 Introduction water bottom measurement....................35 5.1.1 Water probe versions ..........................35 5.1.2 Principle of measurement........................
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Page 8: Introduction Vito Interface And Average Temperature Probes
Introduction VITO Interface and average temperature probes An average temperature probe is to be connected to the Honeywell Enraf 762 VITO Interface unit. In turn, the 762 VITO Interface unit is connected to the Honeywell Enraf level gauge. A water bottom probe can be integrated in the average temperature probe (combi probe). - Page 9 More information about the different temperature probes can be found in the introduction section of chapters 2, 3 and 4. The Honeywell Enraf level gauge must be equipped with a suitable option board to receive the signal from the 762 VITO Interface: •...
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Page 10: Average Temperature Measurement With Vito Temperature Probes
Average temperature measurement with VITO temperature probes ___________________________________________________________________________ Average temperature measurement with VITO temperature probes Introduction VITO temperature probes Honeywell Enraf’s portfolio for average temperature measurement consists of the following probes: 764 VITO temperature probe; • 766 VITO water and temperature probe;... -
Page 11: Commissioning Of Vito Temperature Probe
Average temperature measurement with VITO temperature probes ___________________________________________________________________________ Average product temperature is calculated from all submerged elements from the reference element and higher located elements. Before an element is used in the average product temperature calculation, it must be submerged by a certain amount of product, specified by item MP (product immersion depth; default 0.5 m (20”)). According to the international recommendations (API and ISO) for temperature measurement in storage tanks, the lowest element shall be located 1 m (3 ft) from the bottom of the tank. -
Page 12: Average Temperature Settings
Average temperature measurement with VITO temperature probes ___________________________________________________________________________ 2.2.1 Average temperature settings Before programming the temperature data, the sensitive length and the offset of the temperature probe must be known (refer to figures 2.1 and 2.2). Sensitive length: The sensitive length is retrieved from the position of the highest element. This figure is given in the Model selection code (positions 13, 14, 15 and 16, which are the last four figures) and is in the units of cm. - Page 13 Average temperature measurement with VITO temperature probes ___________________________________________________________________________ Figure 2.1 Tank and temperature probe data Instruction manual VITO Page 11...
- Page 14 Average temperature measurement with VITO temperature probes ___________________________________________________________________________ Figure 2.2 Tank and temperature probe data Instruction manual VITO Page 12...
- Page 15 Average temperature measurement with VITO temperature probes ___________________________________________________________________________ Item Name Description Protection level 2 Enter protection level 2 Temperature dimension One character; either ‘C’ or ‘F’. Default set to C. degrees Celsius degrees Fahrenheit Both dimensions have the same format. Element type Three ASCII characters.
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Page 16: Additional Temperature Settings For 877 Fdi
Average temperature measurement with VITO temperature probes ___________________________________________________________________________ With the VITO temperature probes and also with an 864 MTT, it might be required to disable the lowest spot element from the average temperature calculation. That can be done by setting the first position in item MW to any other hexa-decimal number than ‘0’, for instance: ‘F’. -
Page 17: Temperature Verification Vito Probes
Average temperature measurement with VITO temperature probes ___________________________________________________________________________ 2.2.3 Temperature verification VITO probes After the settings described in section 2.2.1 and, if applicable in section 2.2.2, are entered the temperature measurement is operational. The following checks can be made to verify if the settings are made correct and the product temperature reading is correct. -
Page 18: Operation
Average temperature measurement with VITO temperature probes ___________________________________________________________________________ Operation 2.3.1 Display For operation of the display and the information on it (if applicable), refer tot the instruction manual of the related level gauge or indicator. Below, only an overview is given which display formats gives information about the average temperature measurement. -
Page 19: Troubleshooting
Average temperature measurement with VITO temperature probes ___________________________________________________________________________ Troubleshooting 2.4.1 Temperature error request (item EM) This item helps you configuring correctly by the most recent temperature error encountered by the option board. xx00 No error, value at initialisation xx11 No reply on initial HART commands Communication error. -
Page 20: Temperature Pointer (Items Vp And Vv)
Average temperature measurement with VITO temperature probes ___________________________________________________________________________ 2.4.3 Temperature pointer (items VP and VV) By means of the value pointer (item VP) a vector can be loaded to the HCU or ICU_HPI option board. Next, with item VV, the selected data is returned. Item VP consists of 4 positions, in the middle separated by a ‘.’ or ‘,’ : v w . - Page 21 Average temperature measurement with VITO temperature probes ___________________________________________________________________________ Item Name Description Temperature value pointer Temperature value pointer; format: 2 digits, separator, 2 digits (refer to table 2 – 4). Example: VP=02.20: value pointer loaded to request the Pt100 element resistance. Temperature pointer value Temperature pointer value.
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Page 22: Average Temperature Measurement With Mrt
There is a fixed table with element lengths (see figure 3.1), which are used with the Honeywell Enraf MRT’s. If another make of MRT is used with different element lengths, then these element lengths are to be entered in a separate table (refer to the description of items J0 –... -
Page 23: Commissioning Of Multiple Resistance Thermometer
Average temperature measurement with MRT ___________________________________________________________________________ Commissioning of Multiple Resistance Thermometer The commissioning of the optional average temperature part should be performed after the basic commissioning of the level gauge or indicator. 3.2.1 Temperature related settings Refer to figure 3.1 Item Name Description... - Page 24 Average temperature measurement with MRT ___________________________________________________________________________ Item Name Description Temperature element offset Format according to item LD (default: +000.0000 m). The offset represents the distance from the tank zero level to the lowest position of the MRT. Note: In case of ullage measurement, distance MO is taken from the upper reference point.
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Page 25: Additional Settings For And 877 Fdi
Average temperature measurement with MRT ___________________________________________________________________________ 3.2.2 Additional settings for and 877 FDI Item Name Description Protection level 2 Enter protection level 2 Option board *) Three ASCII characters. This item informs the XPU what option board is installed. That can be: MPU : for HCU option board in MPU emulation mode HPU :... -
Page 26: Operation
Average temperature measurement with MRT ___________________________________________________________________________ Operation 3.3.1 Display For operation of the display and the information on it (if applicable), refer tot the instruction manual of the related level gauge or indicator. Below, only an overview is given which display formats gives information about the average temperature measurement. -
Page 27: Troubleshooting
Average temperature measurement with MRT ___________________________________________________________________________ Troubleshooting 3.4.1 Temperature error request HCU/HPI (item EM) This item helps you configuring correctly by showing the most recent temperature error encountered by the option board. xx00 No error xx70 Sub-system error. Check or replace VITO Interface board xx50 Element 1 detected absent xx72... -
Page 28: Temperature Pointer (Items Vp And Vv)
Average temperature measurement with MRT ___________________________________________________________________________ 3.4.3 Temperature pointer (items VP and VV) By means of the value pointer (item VP) a vector can be loaded to the HCU or ICU_HPI option board. Next, with item VV, the selected data is returned. Item VP consists of 4 positions, in the middle separated by a ‘.’ or ‘,’ : v w . -
Page 29: Average Temperature Measurement With Mpt / Rtd
Average temperature measurement with MPT / RTD ___________________________________________________________________________ Average temperature measurement with MPT / RTD Introduction MPT / RTD The 762 VITO MRT Interface can be used for interfacing 1 through 3 separate RTD spots which are in a 3 wire configuration or an MPT probe (Multiple Pt100 spots) consisting of 1 through 14 RTD's with 2 common ground wires (refer to figures 4.1 and 4.2). - Page 30 Average temperature measurement with MPT / RTD ___________________________________________________________________________ Figure 4.2 Multiple spot and tank data (2) Before programming the temperature data, the element positions must be known (refer to figures 4.1 and 4.2). The element positions of an MPT (Multiple Pt100 spot) element are listed on the test certificate of the MPT element.
- Page 31 Average temperature measurement with MPT / RTD ___________________________________________________________________________ The elements are located at equal distances, hence the spacing is found: Then the element positions are found by: J0 = Position lowest element J1 = Position lowest element + 1 x element spacing J2 = Position lowest element + 2 x element spacing etc.
- Page 32 Average temperature measurement with MPT / RTD ___________________________________________________________________________ Refer to figures 4.1 and 4.2 Item Name Description Protection level 2 Enter protection level 2 Temperature dimension One character; either ‘C’ or ‘F’. Default set to C. degrees Celsius degrees Fahrenheit Both dimensions have the same format.
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Page 33: Additional Settings For And 877 Fdi
Average temperature measurement with MPT / RTD ___________________________________________________________________________ 4.2.2 Additional settings for and 877 FDI Item Name Description Protection level 2 Enter protection level 2 Option board *) Three ASCII characters. This item informs the XPU what option board is installed. That can be: MPU : for HCU/ICU option board in MPU emulation mode HPU :... -
Page 34: Operation
Average temperature measurement with MPT / RTD ___________________________________________________________________________ Operation 4.3.1 Display For operation of the display and the information on it (if applicable), refer tot the instruction manual of the related level gauge or indicator. Below, only an overview is given which display formats gives information about the average temperature measurement. -
Page 35: Troubleshooting
Average temperature measurement with MPT / RTD ___________________________________________________________________________ Troubleshooting 4.4.1 Temperature error (item EM) This item helps you configuring correctly by showing the most recent temperature error encountered by the option board. xx00 No error xx70 Sub-system error. Check or replace VITO xx50 Element 1 detected absent xx72... -
Page 36: Temperature Pointer (Items Vp And Vv)
Average temperature measurement with MPT / RTD ___________________________________________________________________________ 4.4.3 Temperature pointer (items VP and VV) By means of the value pointer (item VP) a vector can be loaded to the HCU or ICU_HPI option board. Next, with item VV, the selected data is returned. Item VP consists of 4 positions, in the middle separated by a ‘.’ or ‘,’ : v w . -
Page 37: Water Bottom Measurement
Water bottom measurement ___________________________________________________________________________ Water bottom measurement Introduction water bottom measurement The water bottom probe is based on a capacitive measurement principle. The probe is one plate of the capacitor and earthed, electrically conducting parts as water and the tank shell, is the other plate. A change in water level is detected by the water bottom probe as a change in capacitance. -
Page 38: Principle Of Measurement
Water bottom measurement ___________________________________________________________________________ Refer to figure 5.1 765 VITO water probe. Can be delivered in three sensitive lengths for the water measurement: 0.5 m • (1’ 7” ), 1.0 m (3’ 3” ) and 2.0 m (6’ 6” 766 / 768 combi probe; lowest temperature element above water probe (position 8 of Model selection •... - Page 39 Water bottom measurement ___________________________________________________________________________ Figure 5.2 Calibration measurements for water probe If the commissioning takes place directly after installation, the measurements at the probe position in figure 5.2 have already been made if the instructions are followed from the installation guide. Otherwise, that measurement should be made now, by partly removing the probe to enable a measuring tape to be lowered from the nozzle.
- Page 40 Water bottom measurement ___________________________________________________________________________ The offset (water probe bottom position) item WB then becomes: WB = (‘ A ’ + product level) - (nozzle height – ‘ B ’) = 0.016 m (or 0.62 inch or 0.052 ft) Note: If WB is a negative figure then it is possible to have a negative water level reading. Water probe length : The 765 VITO water probe and 766 / 768 VITO combi probe can have different water probe lengths.
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Page 41: 5.2.2 Water Probe Settings
Water bottom measurement ___________________________________________________________________________ 5.2.2 Water probe settings Item Name Description Protection level 2 Enter protection level 2 VR= Minimum water capacity Floating point format; default: +.00000000E+00. Enter the value obtained from the calculations in Appendix B. As an alternative, the value from VR as listed on the “CheckList 765/766/768 Final Assembly”... -
Page 42: Operation
Water bottom measurement ___________________________________________________________________________ Operation 5.3.1 Display For operation of the display and the information on it, refer to the instruction manual of the applicable level gauge or 877 FDI. Below, only an overview is given which display format gives information about the water bottom measurement. -
Page 43: Troubleshooting
Water bottom measurement ___________________________________________________________________________ Troubleshooting 5.4.1 Water error request (item EW) Data item EW contains the most recent error code concerning the water probe measurement, encountered by the optional HCU/ICU_HPI board. xx00 No error, value at initialisation xx01 error Either defective 762 VITO interface or defective (leaking) water probe test xx02 Linearity error... -
Page 44: Water Bottom Pointer (Items Vp And Vv)
Water bottom measurement ___________________________________________________________________________ 5.4.3 Water bottom pointer (items VP and VV) By means of the value pointer (item VP) a vector can be loaded to the HCU or ICU_HPI option board. Next with item VV, the selected data is returned. Item VP consists of 4 positions, in the middle separated by a ‘.’ or ‘,’; v w , x y (or v w, x y). -
Page 45: Appendix Aascii Table
Appendix ___________________________________________________________________________ Appendix A ASCII table HEX MSB 3 2 1 0 0 0 0 0 ‘ 0 0 0 1 0 0 1 0 “ 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 &... -
Page 46: Appendix B Configuration Procedure For 765/766/768 Vito Water Probe
Appendix ___________________________________________________________________________ Appendix B Configuration procedure for 765/766/768 VITO water probe Make sure the VITO water (and temperature) probe is installed properly (refer to installation guide VITO). The test certificate, supplied with the probe, contains factory values for the minimum capacitance (probe in air) and the maximum capacitance (probe in water). - Page 47 Appendix ___________________________________________________________________________ Situation 2 (probe fully covered with product) Read the measured capacitance by item MX. Enter this value into item VR. Situation 3 (probe partly covered by water and partly covered by product) Check the water level by means of a manual measurement. An interpolation is applied on the measured capacitance to find the capacitance value at zero water level.
- Page 48 Appendix ___________________________________________________________________________ Step 2: calculate value for VR Instruction manual VITO Page 46...
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Page 49: Appendix C Average Product Temperature Verification Procedure
Appendix ___________________________________________________________________________ Appendix C Average product temperature verification procedure The average temperature measurement from VITO temperature probes, MRT’s and MPT’s can be verified by means of a manual temperature measurement with a calibrated portable electronic thermometer. The calibration certificate shall be available and lists the eventually temperature deviation from the instrument. Warning In hazardous areas it is compulsory to use personal protection and safety gear such as: hard hat, fire-resistive overall, safety shoes, safety glasses and working gloves. -
Page 50: Appendix D Part Numbers
Notes ___________________________________________________________________________ Appendix D Part numbers For VITO family: Refer to figure: 762 VITO interface Item Description Part no. Protective cover over HART terminals 0186.901 Printed circuit board 762 VITO MTT 0762.950 Interface Printed circuit board 762 VITO MRT 0762.960 Interface Printed circuit board 762 VITO LT 0762.970... -
Page 51: Appendix E Related Documents
Notes ___________________________________________________________________________ Appendix E Related documents Instruction manual series 854 ATG level gauge Instruction manual series 854 XTG level gauge Instruction manual 877 Field Display & Interface Instruction manual 97x SmartRadar series Installation guide 762 VITO Interfaces & VITO, MTT, LT, MRT and MPT probes Installation guide 864 MTT Multi Thermo sensor Thermometer Instruction manual VITO Page 49... - Page 52 Honeywell Enraf Delftechpark 39 2628 XJ Delft The Netherlands Tel: +31 (0)15-2701 100 Email: [email protected] 4416655 - Revision 6 April 2013 www.honeywellenraf.com © 2013 Honeywell International Inc.