KROHNE BM 102 EN - Manual (Page 31)

BM 102 31
4.2.2 Probe measurement limits
* Displayed level and distance values displayed will depend on how and at what level the
minimum and maximum gauge outputs have been configured.
Probe measurement limits
Probe type Top dead zone,
A1
εr=80* Bottom dead
zone, A2
εr=80* Top dead zone,
A1
εr=2.4* Bottom dead
zone, A2
εr=2.4*
Single rod (type 1) 300mm or 12” 20mm or 0.8” 400mm or 15¾” 100mm or 4”
Single cable Ø4mm
or Ø0.15” (type 2) 300mm or 12” 20mm or 0.8” 400mm or 15¾” 100mm or 4”
Coaxial (type 3) 0mm or 0” 10mm or 0.4” 0mm or 0” 100mm or 4”
Twin cable Ø4mm
or Ø0.15” (type 4) 150mm or 6” 20mm or 0.8” 300mm or 12” 100mm or 4”
Single cable Ø8mm
or Ø3” (type 6) 300mm or 12” 20mm or 0.8” 400mm or 15¾” 100mm or 4”
* The dielectric constant εr of water is 80. The dielectric constant εr of oil is 2.4.
Note:
The default factory setting for A1 is 400 mm or 15 ¾”, except for the coaxial probe (0
mm or 0”). Please consult KROHNE if you wish to reduce the size of the programmed
top dead zone, A1.
If the device is mounted on a tank fitting (e.g. a nozzle), include the height of the tank
fitting in the programmed dead zone.