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Name ID Label Description Type Access Class
antElong 4114 Antenna extension The length of the supplied antenna extension is factory-set here. Unit and setting range: same as for "Tank height" (Fct. 3.1.1). This setting may only be changed when a longer or shorter antenna extension is installed. Otherwise faulty measurements may result because the BM 70 A/P /700/702 allows for this length when measuring. After changing any antenna extension, record a new empty spectrum, see Sect. 8.6.12 of 'Operating Manual'. When a curved antenna extension is used, only the vertical component (vertical offset) should be entered here. (Fct. 3.1.4) R/W Float 2048
tankHgt 4115 Tank height · Definition of the tank height for the BM 70 A/P /700/702: Distance between the top edge of the tank fitting and the lower reference point. · The lower reference point is that "point" in the vessel on which the microwaves emitted by the BM 70 A/P /700/702 impinge and from which they are reflected. This can 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. The BM 70 A/P /700/702 cannot measure below the lower reference point (usually a "sump" is left in the tank, see diagram in Sect. 8.5 of 'Operating Manual').· Setting ranges for the tank height: - For BM 70 A (standard): 40 m / 1574.74 inch / 131.22 ft - For BM 700/702: 20 m / 787.4 inch / 65.6 ft - For BM 70 P: 35 m / 1377.9 inch / 114.8 ft - Min. value for BM 70 A/P /700/702: 0.5 m / 19.7 inch / 1.64 ft · Depending on the version, it is also possible to set an upper limit for the tank height (e.g. Wave-Stick: 20 m). The maximum value can be increased by Krohne Service to up to 100 m (for BM 70 A only).· The tank height set at this point is simultaneously the upper limit of the setting ranges for the following functions: "Block distance", "Antenna extension", "Hysteresis" for switching output. · If the tank height is changed to a value greater than 30 m, a new empty spectrum must subsequently be recorded, see Sect. 8.6.12 of 'Operating Manual' (not applicable to BM 70 P / BM 700/702). (Fct. 3.1.1) R/W Float 2048
dummy 4116 R/W Float 2048
velTrMax 4118 Tracing velocity To avoid faulty measurements, the BM 70 A/P /700/702 places a symmetrical "plausibility range" around the last valid measured value in which the next measured value is expected. Measured values outside this range are identified as invalid and are suppressed. If no valid measured value is identified, the BM 70 A/P /700/702 enlarges the plausibility range with the tracing speed until a valid (plausible) measured value has again been found. The measured value for level/distance cannot change at a faster rate than the set tracing speed. · Under this function the maximum rate at which the level can change in the tank should be set as the minimum value. · Setting ranges: BM 70 A/700/702: 0.01 - 10.00 m/min (0.03 - 32.80 ft/min) BM 70 P: 0.01 - 1.00 m/min (0.03 - 3.28 ft/min) · Default: 0.5 m/min (BM 70 A/700); 0.1 m/min (BM 70 P) · See also Sect. 8.8 of 'Operating Manual' (error message: NO M.VALUE) (Fct. 3.5.4) R/W Float 8
epsilonR 4117 Epsilon R Use this function to enter the relative permittivity. · Allowable input range: 1.1000 - 8.0000 · Default: 2.0000 Enter the figure of 2.0000 if the relative permittivity is not known, as numerous products have "Epsilon R" value approx. 2. However, expect reduced measuring accuracy and/or skipping of the measured value on changeover from tank bottom tracing to the normal measuring mode (= evaluation of reflection from the product surface). (Fct. 3.5.8) R/W Float 8
offset 411D Offset The offset is used to input the virtual distance to the bottom edge of the flange as a function of the signal transit time in the instrument. This value is needed to be able to deduce the actual distance, referred to the bottom edge of the flange, from the calculated frequency. The value is entered by Krohne in the completely assembled version of the instrument. Acceptable input range: 0.0 - 2.0 m Default value: 0.50 m Note: Once the offset has ben changed the empty-tank spectrum will no longer be used and will need to be re-recorded!! (SEr. 4.2.1) R/W Float 8
hpFilter 411E HP Filter Setting of the low distance filter. Signals below the programmed distance (referred to the flange) are reduced, the more the nearer they are to the instrument. The filter can be set in order to suppress disturbances from antenna extensions or near reflection signals. Acceptable input range: 0 - 5.0 m (BM 702: 0/0.5/1/2 m) Default value: set by manufacturer Not available for BM 700. (SEr. 4.1.3) R/W Float 8
coffFact 411F Corr. Factor The correction factor allows linear rescaling of the measured distance. Refer to Sect. 5.6.4 of 'Service Manual' for a detailed description. Acceptable input range: 0.4000 - 1.1000 Default value: 1.0000 (SEr. 4.2.2) R/W Float 8
hdeThresh 4120 OF Threshold Threshold value for overfill detection, related to gain V=6 (10000 corresponds to line height 2500 at V=5; 625 at V=4; 156 at V=3 etc.). If an overfilling is not recognized, the threshold value may be decreased. If the measured level jumps to the top without overfilling, the threshold value may be increased. With Fct. "BD Detect" the overfill detection can be switched off completely, too. Acceptable input range: 0 - 9999999 Default value: 10000 (SEr. 4.1.2) R/W Float 8
tankHgtMax 4121 Max Tankheight Determines the accepted max. value for the "Tank height". Acceptable input range and default value depend on the instrument version: BM 70 A: 10.0 m - 100.0 m / 40.0 m BM 70 P: 10.0 m - 35.0 m / 35.0 m BM 700/702: 10.0 m - 20.0 m / 20.0 m (SEr. 4.2.3) R/W Float 2048
Name ID Label Description Type Access Class