THESE ELECTRO LEVEL SENSORS  -  are a specially selected military variant of the high spec Tilt Measurement type ELH100.  The specification is available on tilt-measurement.com
 

We believe that they were  selected for zeroing accuracy as this was the application’s requirement - testing tank
barrel droop under sustained firing conditions!

Linear range:   ± 0.5° and typical basic levelling accuracy of ± 10 seconds or 50µ / meter  (0.05mm / meter)

ADVANTAGES OF THE  ELH100 GLASS ENCAPSULATED ELECTROLYTIC SENSOR

​

• Military spec. with long track record – dependable

• Solidly built rugged sensor with polished steel base (can be screwed down)

• Adjustable units feature original high spec military adjusters

• Can be used as inclinometer over wide range of angles whilst maintaining precision adjustment

• Direct output to either analogue meter or digital readout (under development - see above)

• Adjustable sensitivity ranges

• Meter can be remote from sensor (cable connection), up to 4m

• Bluetooth connectivity for future generation digital readout is under development

• Can be used to monitor vibration

• Can also be used as an accelerometer (+-0.01g linear range, +-0.1g unambiguous)

• High accuracy, low drift compared with MEMS sensors

• High longevity and durability compared with MEMS sensors – there is nothing to wear out

• As the sensor is analogue, resolution of the sensor is effectively infinite

• There is no stiction or friction or hysteresis to cause inaccuracy, unlike mechanical sensors

• Discrimination typically 0.01 arc seconds

THREE TYPES OF SENSOR MOUNT ARE AVAILABLE

NON ADJUSTABLE SENSOR -  a fixed mount with ground and polished steel base. It has an integral connecting cable and will ship with a built in miniature connector to improve strain relief.

TWIN ADJUSTABLE SENSOR UNIT in original mount - as supplied to MoD.  It is possible to preset the sensors at nominal angles on the axial mount, within a range of
± 50°  The lower micrometer knob adjusts both sensors whilst the upper micrometer adjusts the upper sensor only. This facility is designed to allow testing the repeatability of angular positioning.

These are robust, precision units featuring very high build quality.

LOW PROFILE SENSOR WITH MICROMETER ADJUSTABLE MOUNT  –  designed in house.  It uses the original high quality adjusting components on a cnc machined anodised aluminium alloy mount and is positionable over a nominal ± 20°.  It can then be precisely positioned with the micrometer adjuster.

SYSTEM OPTIONS AND PRICES

SYSTEM A

Fixed, non-adjustable electro-level unit  approximately  ± 0.5° linear range   

This module provides a precision fixed level with an accuracy of ±10 arc seconds.  These have been checked by us on a surface plate levelled to a similar standard, but this is not carried out to a calibration standard.  They have four 6-32 UNC fixing holes in the ground and polished base.

Levels can be checked and deviation from level measured on the readout.   

Readout Unit with analogue display, adjustable range 

Three ranges:  10, 2  and 0.5 mm/meter, full scale.

The meter graduations on the 0.5mm/meter range represent 0.05mm/meter  =  10 seconds. 

Other items included  

1 -  Mains power supply unit (12V dc, 2A) with 4 pole XLR connector.                                      

1 -  Sensor connection cable  1.8m  3 pole XLR  / mini XLR

​

Price: £235 inc VAT@ 20%

SYSTEM B

Twin adjustable sensor unit in original mount with precision micrometer levelling. 

The lower screw adjusts both electro-levels whilst the upper screw adjusts the upper level only
In this configuration the sensor output to be displayed is selected by a switch on the instrument
panel

​

Readout Unit with analogue display, adjustable range 

Three ranges:  10, 2  and 0.5 mm/meter

The meter graduations on the 0.5mm/meter range represent 0.05mm/meter  =  10 seconds. 

Other items included  

1 -  Mains power supply unit (12V dc, 2A) with 4 pole XLR connector.

1 -  Sensor connection cable  1.8m  5 pole XLR  
 

Please note:  the analogue readout unit supplied accepts a single sensor input only.

                        readout from both sensors at the same time is not possible.

Price: £399 inc VAT @ 20%

​

​

​

SYSTEM C

​Single sensor with low profile micrometer adjustable mount

Designed in house, it uses the original high quality micrometer adjusting components

​

Readout Unit with analogue display, adjustable range 

Three ranges:  10, 2  and 0.5 mm/meter

The meter graduations on the 0.5mm/meter range represent 0.05mm/meter  =  10 seconds. 

​

Other items included  

1 -  Mains power supply unit (12V dc, 2A) with 4 pole XLR connector.                                      

1 -  Sensor connection cable  1.8m  3 pole XLR  

​

Price:  £295 inc VAT @ 20%

​

​

​EXTRAS AVAILABLE

​

Spare power lead - XLR 4 pole socket to flying leads (2.5m long)                 £15.00
Extension power cable 3m  (XLR both ends)                                                     £22.50

Spare XLR socket, Neutrik or RS Pro (solder connections)                             £7.00

Extension sensor cable 2.5 m(single sensor)                                                   £22.50

Extension sensor cable  2.5 m (twin sensor)                                                    £27.00 

​

All prices are including VAT @ 20%

All of these units provide a well priced, high performance, lightweight, precision levelling unit ideal in situations where accuracy, stability and the need for the readout to be monitored remotely from sensor are useful.

The system may be powered by any stabilised 12V dc power supply equipped with an industry standard XLR 4 pole socket.  A small 12v., 2Ah  battery will run the system for around 40 hrs.

​

If you decide to make a purchase, in order to be confident that the instrument will meet your needs, we will offer you a 14 day refund based on the safe return of the equipment (buyer to pay postal costs and a £25 handling fee). 

We have previously sold the original levelling system world-wide through ebay and have a 100% positive feedback total of over 3450.

The equipment is used and has no warranty other than for new equipment which has been incorporated into the system - for example the power supply or the sensor cable.

Although these units  are not calibrated, we have made basic tests using a granite surface table, straight edges and shims and have derived some figures for performance.  If your need is for traceable calibrated instruments then these systems are not be for you.  If, on the other hand, you are able to use your own judgement as to what you need,  they will be of interest, and certainly represent excelent value.