36 Ultrasound Controller Manual
¹ depend on sensitivity (Normal or Very Low) ² depend on Technique (Echo or WR)
Ndata = Normal measurement data Wthd = WR threshold
Efrq = Echo frequency Wfrq = WR frequency
VLdata = Very Low sensitivity measurement data Edata = Echo measurement data
NLiq = Normal sensitivity calibrated liquid data dB Wdata = WR measurement data
NAir = Normal sensitivity calibrated air data ELiq = Echo calibrated liquid data * 0,3dB
VLthld = Very Low sensitivity calibrated threshold Wss = WR signal * 0,7dB
Ethd = Echo threshold
Air Sensor 1
bit0: 0= Air 1= Liquid
bit1: not used
bit2: not used
bit3: 1= no sensor
bit4: 1= calibration not been done
bit5: 1= error
bit6: 1= error very low sensitivity
bit7: 1= calibration in progress
Level Switch 1
bit0: 0= Air 1= Liquid
bit1: Efrq or Wfrq bit0²
bit2: Efrq or Wfrq bit1²
bit3: Efrq or Wfrq bit2²
bit4: 1= no sensor
bit5: 1= error
bit6: not used
bit7: 1= calibration in progress
Level Sensor 1
bit0: velocity sensor 0=Air
1=Liq
bit1: -
bit2: 1= calibration missing
bit3: 1= error
bit4: 1= no echo
bit5: 1= OVER (>100%)
bit6: -
bit7: -
Air Sensor 2
(same as above)
Level Switch 2
(same as above)
Level Sensor 2
(same as above)
Air Sensor 1 0=Air 1=Liquid
bit0: Very Very low
bit1: Very low sensitivity
bit2: Low sensitivity
bit3: Medium sensitivity
bit4: High sensitivity
bit5-7 not used
Level Switch 3
(same as above )
Level Sensor 1
Measured Level %
(255=100%)
Air Sensor 2
(same as above)
Level Switch 4
(same as above)
Level Sensor 2
Measured Level %
Air Sensor 1a
Ndata % or VLdata¹
Level Switch 1
Edata % or Wdata²
Level Sensor 1
Measured Level mm High
Air Sensor 1b
Ndata % or VLdata¹
Level Switch 2
Edata % or Wdata²
Level Sensor 1
Measured Level mm Low
Air Sensor 2a
Ndata % or VLdata¹
Level Switch 3
Edata % or Wdata²
Level Sensor 2
Measured Level mm High
Air Sensor 2b
Ndata % or VLdata¹
Level Switch 4
Edata % or Wdata²
Level Sensor 2
Measured Level mm Low
Level Switch 1
ELiq or Wss²
Level Sensor 1
Sound velocity m/s High
Level Switch 2
ELiq or Wss²
Level Sensor 1
Sound velocity m/s Low
Level Switch 3
ELiq or Wss²
Level Sensor 2
Sound velocity m/s High
Level Switch 4
ELiq or Wss²
Level Sensor 2
Sound velocity m/s Low
Air Sensor 1a
NAir % or VLthld¹
Level Switch 1
Ethd % or Wthd²
Level Sensor 1
Velocity sensor threshold%
Air Sensor 1b
NAir % or VLthld¹
Level Switch 2
Ethd % or Wthd²
Level Sensor 2
Velocity sensor threshold%
Air Sensor 2a
NAir % or VLthld¹
Level Switch 3
Ethd % or Wthd²
Level Sensor 1
Echo strength dB
Air Sensor 2b
NAir % or VLthld¹
Level Switch 4
Ethd % or Wthd²
Level Sensor 2
Echo strength dB