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Installation and operating instructions

Level-Radar

BM 702

Summary of content (24 pages)

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Software History Introduction Signal converter Mth./Yr Hardware Firmware Hardware 04/00 7.00PREnn PC BM 702 User program Operating system DOS 5.0 and higher Software PC-CAT 3.02 PRE01 Instructions Device User program 05/00 7.02221.11+ Suppl. instruction Win95/98/NT PC-CAT Online help Win 4.00 Test versions for BM 702. 07/00 BM 702 7.00 PC DOS 5.0 and higher PC-CAT 3.01 Win95/98/NT PC-CAT 07/00 7.02221.11+ Suppl. instruction Online help Win 4.00 First series version for BM 702.
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Contents 1 Handling and storage.................................................................................. 3 2 Installation.................................................................................................... 4 2.1 Field assembly ..................................................................................................4 2.2 Mechanical installation .....................................................................................5 3 Electrical connection .....................
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2 Installation Most of the BM 702 versions are supplied in fully assembled condition. In this case, you may skip this chapter. However, if a device should be delivered in parts, or parts are subsequently replaced, the following should be noted. 2.1 • • Field assembly For any necessary field assembly of the BM 702, all parts are included with the supply (stud bolts, washers, etc.). Bolt the waveguide window (flange mount) or distance piece, if supplied loose, to the BM 702.
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2.2 Mechanical installation Hazardous-duty systems: • The BM 702 Ex is certified in conformity with European Standard for use in Zone 0, 1 and 2 hazardous locations (dependent on version). • Attention is drawn to the data and information given on the nameplate of the converter, the nameplate of the flange and the specifications in the approval certificates.
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c) Purging device Remove screw plug ¼" R and screw in screwed tube joint, e.g. Ermeto ¼" R. Consult “Ex“ specifications relating to the purging circuit (provided by customer)! Installation on the tank • • • Do not forget the gasket when positioning the BM 702 on the tank nozzle flange. Align BM 702 and gasket, slightly tighten nuts on stud bolts (by hand). Press shielding strip C* in the gap between tank and BM 702 flanges and secure with strap retainer S* (both items included with supply).
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When using the PTFE Wave-Stick in hazardous areas of Zone 0, any electrostatic charging of the stick, e.g. by flow of product, must be avoided! 3 Electrical connection To open the signal converter, please use a screwdriver and release the four visible screws on top of the blue housing. Terminal assignment BM 702: The polarity of the 4-20 mA connection is arbitrary.
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4 Setting the parameters Setting parameters via program PC-CAT isolation amplifier RS232 Adapter ≥ 120 Ω With the program PC-CAT, version 3.01 or higher, you can configurate BM 702 instruments in a very comfortable way from a PC. Connect the non-intrinsically safe side of the isolation amplifier over a load between 120 Ω and 350 Ω to the Smart adapter (delivered together with PC-CAT) and connect it with a serial port of the PC. The used isolation amplifier must be HART® compatible.
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Function of keys (only together with local display) Operator control can be carried out with the aid of local display unit after opening the housing. However, a particularly convenient form of parameter setting is offered by the PC program PC-CAT (special accessories, see above). → (cursor key) - selects the configuration menu, - branches the menu to the next lower level, - shifts the cursor* to the next column on the right. ↑ resp.
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Simply scaling the current output 1) Drain the tank completely to the 0% marking (= 4 mA) 1). 0% 2) Press the lower keys (↵ und ↓) down, until the asterisks on the display „TANKHEIGHT|********“ are replaced by the actual measured distance value 2). TANKHEIGHT 1234 mm ↵ 3) Then release and press ↵. In the lower line: „SURE NO?“ is displayed. 4) If this value is not plausible or the tank is not empty, abort by ↵. Or accept the value by pressing ↑ (“SURE YES?”) and then ↵. TANKHEIGHT 1234 mm SURE NO? 2.
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Description of functions The table on the following 3 pages provides an overview of all parameters that can be set in the configuration menu. This is followed by more precise explanations of some functions and a typical configuration. Configuration menu (version 7.00) Function (Fct.) Input range 1.0 1.1 1.1.1 1.1.2 1.1.3 2.0 2.1 2.1.1 2.1.2 2.1.3 2.2 2.2.1 OPERATION DISPLAY FCT.DISP UNIT.LENGTH UNIT.CONV. TEST HARDWARE MASTER DISPLAY STATUS CUR.OUTP.I VALUE I 2.2.2 TEST I 2.4 2.4.
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Function (Fct.) Input range Description (compensates different wave speeds in still wells) Enter -10.00...0...+10.00 [m] Reference offset is added to measured distance values. Enter-100.00...0...+100.00 [m] Tank bottom offset is added to measured level values. 3.1.7 REF.OFFSET 3.1.8 TB.OFFSET 3.2 3.2.1 DISPLAY FCT.DISP 3.2.2 UNIT.LENGTH 3.2.3 UNIT.CONV. 3.2.4 USER UNIT Text entry 3.2.5 ERROR MSG. Select 3.3 3.3.1 SIGNAL OUT FUNCTION I 3.3.2 RANGE I 3.3.3 SCALE 4mA Enter -200.00 ...
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Function (Fct.) Input range Description If YES, for every access a 9digit entry code on the 4 keys is necessary. Enter code (RRREEEUUU) Enter the entry code for access lockout. Enter text (8 characters) Enter a device identifier. 3.4.3 CODE 1 3.4.4 3.5 3.5.1 LOCATION APPLICAT. AUTO TANKH. 3.5.2 EMPTY.SPEC. Select 3.5.3 TIMECONST. Value 3.5.4 TRACING.VEL. Value 0.01...0.50...10.00 [m/Min] 3.5.5 MULT.REFL. Select NO/YES 3.5.6 BD-DETECT. Select NO/YES 3.5.7 FUNCT.
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Explanatory notes Tank height The tank height (Fct. 3.1.1) for the BM 702 is defined as the distance between the top edge of the tank connecting flange and the bottom reference point. The bottom reference point is that “point“ in the tank on which the microwaves of the BM 702 hit and from which they are reflected. This may be the tank bottom (symmetrical tank with flat bottom) or the non-horizontal part of the bottom (e.g. tank with dished bottom) or an additionally fitted plate.
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[e.g.: 0] upper reference point (top edge of tank connecting flange) Fct. 3.1.5 Fct. 3.1.4 [e.g.: 0] block distance (Fct. 3.1.2) [e.g.: 0.6 m] response threshold tank height (Fct. 3.1.1) [e.g.: 5.30 m] + + + + + + + + + + + + + + + + non measurable zone + + + + + + + + + + + + + + + + max 20 m A (Fct. 3.3.4) [e.g.: 4.0 m] measuring current output range min 4 m A (Fct. 3.3.3) [e.g.: 0.
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After selecting "RECORD": if other parameters had previously been changed, the query "ACCEPT YES" is first made as to whether they are to be stored. In this case, confirm by pressing ↵. To record, use the ↑ key to select one of the following options: • MAX. VALUES: (only maximum values are taken into account when the empty-tank spectrum is recorded; useful e.g. with “difficult“ agitators). • AVERAGE: (values are averaged; this setting can be used for most applications).
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Sequence for setting parameters (example) (for version with local display) The following description refers to a storage tank with the parameter examples taken from the illustration in this Section. If the device no longer contains the default parameters, the keystroke combination for entering the numerical values may differ. Entry into configuration menu Keys to be actuated → Setting the parameter: tank height ↑↑→→ Activity Display of default value Input of tank height "5.
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5 Maintenance, error handling Replacement of the signal converter Before commencing, note the parameters of the BM 702 and switch off the power supply! 1. Disconnect all cables from the terminals in the terminal compartment. 2. Remove the 4 Allen screws M (Allen key size 5 mm) and lift off the signal converter. The flange unit (incl. waveguide window) will remain tight even with pressurized tanks.
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6 i Safety information Hazardous-duty systems • • Types of protection in the BM 702 terminal compartment: Intrinsically safe"ia" Consult the relevant wiring and installation regulations, e.g.
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7 Technical data (extract) Tank height (measuring range) Measuring accuracy (distance) Measured-value resolution Rate of change in level 0.5 to 20 m / 1.6 to 65.6 ft from 1m/3ft: + 1cm/0.4” ; from 5m/16ft: + 0.2% 1 mm / 0.04” max. 10 m/min / 32.8 ft/min (tracking speed) Connecting flanges Horn antenna/Wave-Guide DIN 2501 DN 50 to DN 200 / PN 6 to PN 64 and higher; Shape C to DIN 2526 or others ANSI B16.5 2” to 8", Class 150 lb or 300 lb, RF DN 50...150 or ANSI 2”...
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Operating temperature at flange (see also chapter 8) Product temperature Ambient temperature Microwaves Measuring principle Frequency range Antenna radiation angle LP flange system: -20°C (-4°F) to +130°C (302°F) V96 flange system: Basic version: -30°C (-22°F) to +130°C (266°F) Special version: min. -60°C (-76°F) High temperature version, FFKM: max. +250°C (482°F) Kalrez 2035: max. +210°C (410°F) FPM (Viton) or FEP-coated: max.
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8 BM 702 Level-Radar Type code Series V96 or LP: Series WS: Terminal cover Terminal cover Name plate Flange system Name plate Flange system High temperature distance piece (optional) xxx xxx Marking Flange material Marking Flange material xxx Marking Material "Metaglass" ring (not for LP version) optional: flange plate (Vers.
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FFKM K2035 K1091 FPM FEP Gaskets of FFKM, e.g. Kalrez™ 4079 or Parofluor™ V8545-75 Gaskets of Kalrez™ 2035 Gaskets of Kalrez™ 1091 Gaskets of FPM, e.g.
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9 Parameter check list BM 702 ..................................Vers.:......................device no.................................. 24 Menu modified at .......................................: .................: .................: .................: Fct. Configuration parameters (extract) 3.1.1 Tank height.......................................: .................: .................: .................: 3.1.2 Block distance ..................................: .................: ................