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About the 

IMP Lite

 Level Monitoring System 

 

Functional Description 

The 

IMP Lite

 level monitoring system is a highly developed ultrasonic level 

measurement system which provides non-contacting level measurement for 
a wide variety of applications in both liquids and solids.  

Easy calibration and maintenance free “fit and forget” means that you can 
install the 

IMP Lite

 Level Monitoring System rapidly and with confidence.  

The 

IMP Lite

 operates on the principle of timing the echo received from a 

measured pulse of sound transmitted in air and utilises “state of the art” 
echo extraction technology.   The 

IMP Lite

 comes in three models:  

 

Lite

 3

 with a range from 0.20m (0.66 feet) to 3.00m (9.84 feet). 

 

Lite

 6

 with a range of 0.3m (0.98 feet) to 6.00m (19.69 feet). 

 

Lite

 10

 with a range of 0.3m (0.98 feet) to 10.00m (32.81 feet). 

The 

IMP Lite

  can  show 

level

space,  distance

,  on  the  display.  There  is  an 

isolated 4-20 mA output that can be connected to a remote chart recorder or 
PLC,  to  monitor  level,  space  or  distance,  dependant  on  the  measurement 
mode  selected,  and  provides  a  ‘fault  condition’  alarm  of  either  3.5mA  or 
22mA. 

The 

IMP Lite

 lid has an integral LCD display and 4 buttons  which are used 

for  programming  purposes  when  in  Program  Mode  and  as  hot  keys 
providing additional information whilst in Run Mode. 

 

Summary of Contents for IMP Lite 10

Page 1: ...IMP Lite INSTRUCTION MANUAL...

Page 2: ......

Page 3: ...n made to ensure accuracy of this documentation but Pulsar Process Measurement Limited cannot be held liable for any errors Pulsar Process Measurement Limited operates a policy of constant development...

Page 4: ......

Page 5: ...faults 14 Factory Defaults 14 IMPLITE 15 Setting up Your Application 15 Empty Distance 15 Span 15 Near and Far Blanking 15 Using the 4 20 mA Output 15 Setting Security Passcodes 16 Using A Passcode 16...

Page 6: ...ent reading this operating manual will ensure that your installation is as simple as possible About this Manual It is important that this manual is referred to for correct installation and operation T...

Page 7: ...tilises state of the art echo extraction technology The IMP Lite comes in three models Lite 3 with a range from 0 20m 0 66 feet to 3 00m 9 84 feet Lite 6 with a range of 0 3m 0 98 feet to 6 00m 19 69...

Page 8: ...Hz Range Lite 3 0 2 3m 0 66 10ft Lite 6 0 3 6m 0 98 20ft Lite 10 0 3 10m 0 98 33ft Digital echo processing Current output 3 5 22mA Accuracy 0 25 or 6mm 0 24 inches whichever is greater Resolution 0 1...

Page 9: ...Page4 EU Declaration of Conformity...

Page 10: ...ns such as pipes beams etc The IMP 3 should be mounted at least 20cm 0 66 feet above the maximum level of the material and be perpendicular to the surface Whilst the IMP 6 and 10 should be mounted at...

Page 11: ...Page6 Dimensions The dimensions of the IMP Lite are as shown below 1 5 BSP NPT IMP Lite 3 6 2 BSP NPT IMP Lite 10...

Page 12: ...Lite 3 3 metres 9 84 feet 200mm 0 66 feet Lite 6 6 metres 19 69 feet 300mm 0 98 feet Lite 10 10 metres 32 18 feet 300mm 0 98 feet L should as a minimum be at least that as detailed in the table above...

Page 13: ...is clear of any obstructions such as weld seams gaskets etc in order to avoid unwanted signal returns If using standpipes which extend into the vessel beyond the blanking distance but not as far as th...

Page 14: ...d with a suitable gland to ensure moisture protection is maintained Terminal Connection Details Wiring details are also given on the terminals under the access cover Terminal Connections Terminal 1 ve...

Page 15: ...5 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Supply Voltage Total Cable resistance Maximum cable resistance vs supply voltage for 2 wire mode Important Information If the equipment is installed or u...

Page 16: ...Program Mode Run Mode This mode is used once the IMP Lite has been set up in program mode It is also the default mode that the unit reverts to when it resumes operation after a power failure When the...

Page 17: ...Parameter Value How to Access Program Mode To access the Program mode press the ESC and Enter button simultaneously where upon the display will show PASS on the LCD display briefly to prompt you to en...

Page 18: ...enu Once you have reached the relevant menu scroll through the parameters and enter the necessary information To enter the information use the UP and DOWN keys to increment or decrement the digit and...

Page 19: ...o the material surface It will be indicating in P104 Measurement Units as shown on the display TIP In some applications it is simplest to empty the vessel take a reading from the Imp for distance and...

Page 20: ...of empty level If you wish to monitor further than the empty level then increase this figure so that the empty level plus the far blanking figure as of empty level is greater than the surface being m...

Page 21: ...as follows Additional Information The passcode is also used for remote access using the RS232 so if this is being used be sure to ensure any additional equipment using this feature is changed accordin...

Page 22: ...t or the current level of software in your IMP Lite whilst in Run Mode press the ESC button and the serial number along with the software revision will be displayed Alternatively enter Program Mode an...

Page 23: ...Page18 This page left blank intentionally...

Page 24: ...shows volume of material in the vessel P104 Measurement Units This parameter sets the units you want to use for programming and display Option Description 1 metres All units of measure are METRES 2 c...

Page 25: ...version of IMP Lite being used It should not be set to less than this figure but can be increased IMP Lite Version Near Blanking Distance Lite 3 metre Default Blanking Distance 0 2m 0 66 feet Lite 6...

Page 26: ...03 Vessel Shape P600 Value Dimensions Required P600 0 Cylindrical Flat base Default Cylinder diameter P600 1 Rectangular Flat base Width and Breadth P600 2 Cylindrical Cone base Cylinder diameter and...

Page 27: ...tom P600 8 Horizontal cylinder with flat ends Cylinder diameter and tank length P600 9 Horizontal cylinder with parabolic ends Cylinder diameter length of one end section and tank length P600 10 Spher...

Page 28: ...ed P600 5 Cylindrical Half sphere base Cylinder Diameter Not Used Not Used P600 6 Cylindrical Flat sloped base Height of base Cylinder Diameter Not Used P600 7 Rectangular Flat sloped base Height of b...

Page 29: ...UK Gallons 6 US Gallons Volume will be totalised in US Gallons 7 Cubic feet Volume will be totalised in cubic feet 8 Barrels Volume will be totalised in barrels P606 Correction Factor This parameter i...

Page 30: ...last known values until a valid reading is obtained If required then you can change this so that the unit goes to high 100 of span or low empty as follows Option Description 1 Known Default Remain at...

Page 31: ...d result on the device that is connected P839 mA High Trim If the device you are connected to is not calibrated and not showing the high value then you can trim it using this parameter You can either...

Page 32: ...of the temperature measurement By default it is set to internal transducer P852 1 which will automatically detect the temperature from the transducer If for any reason no temperature input is receive...

Page 33: ...several times then adjust the Sound Velocity accordingly to obtain an accurately displayed reading Gas Sound Velocity Chlorine 206 m sec Argon 308 m sec Oxygen 316 m sec Air 331 5 m sec Ammonia 415 m...

Page 34: ...e Default 10 000 metres minute 32 81 feet minute System SyS1 Menu The following three parameters do not affect how the unit performs but details contained in them may be required by Pulsar when making...

Page 35: ...Menu P991 Hard Test When this parameter is selected the unit will test the following in turn Display All the segments on the LCD and the backlight are lit up so you can see if they all work Press the...

Page 36: ...of range sensor is perpendicular to material surface Incorrect reading being displayed for current level Measure actual distance from transducer face to surface of material Enter Program Mode and acce...

Page 37: ...sducer in accordance with regional environmental regulations for electrical electronic products Controllers Remove power disconnect the Controller and remove battery if fitted Dispose of Controller in...

Page 38: ...Page33...

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