PRECISION ELECTRO LEVELS
Tilt Monitors/Inclinometers
NEWS UPDATE - A digital readout module for these sensors is in the late stages of development. This will include blue tooth connectivity to a mobile device.
CHECK BACK HERE FOR FUTURE UPDATES
REHOUSED PRECISION LEVELS/TILT MONITORS WITH ± 0.5° RANGE
THE READOUT UNIT - originally designed for use in a demanding military environment, the core of the electronic unit is a Tilt Measurement Ltd ELD60 signal conditioning unit
THE ELECTRO LEVEL SENSORS - are a military variant of the high spec Tilt Measurement type ELH100
We believe that they were specially selected for zeroing accuracy as this was the application’s requirement.
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
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Military spec. with long track record – dependable
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Solidly built rugged sensor with polished steel base
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Adjustable units feature original high spec military adjusters (
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Can be used as inclinometer over wide range of angles whilst maintaining precision adjustment
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Direct output on straightforward analogue meter
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Adjustable sensitivity ranges
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Meter can be remote from sensor (cable connection), up to 4m (investigate)
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Can also be used to monitor vibration
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Can also be used as an accelerometer (+-0.01g linear range, +-0.1g unambiguous)
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High accuracy, low drift compared with MEMS sensors
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High longevity and durability compared with MEMS sensors – there is nothing to wear out
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Less demanding electronics than high performance version MEMS sensors
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resolution of the sensor is effectively infinite,
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unlike mechanical sensors, there is no stiction or friction or hysteresis to cause inaccuracy.
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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
An optional fitted "Pelican style" case is available
Price: £350 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
An optional fitted "Pelican style" case is available
Price: £695 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
An optional fitted "Pelican style" case is available
Price: £425 inc VAT @ 20%
EXTRAS AVAILABLE
Fitted weatherproof "Pelican" style case for any system £69.95
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.
