ETS : Precision Tilt Switch With Adjustable Threshold
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ETS : Precision Tilt Switch With Adjustable Threshold level developments Features • Single, dual or omni-directional tilt sensing • Adjustable switching threshold from 1 to 50° • 'ZERO' button to set zero after installation • Small size and low power consumption • No moving parts means no servicing and long life • High precision switching threshold • Mercury free and RoHS compliant • Sealed to IP65 / IP67 and CE Certified • Highly configurable to suit most applications • Relay output contacts for total isolation • Bank angle warning system for ride-on lawn mowers. • Safety cut-out for cranes with hydraulic levelling • Tilt warning system for platform and hoist levelling. • Rollover warning system for agricultural vehicles • Safety cut-out for aerial work platforms • Can be readily customised to suit most applications Description A highly configurable tilt switch that is factory configured as either single axis, dual axis or omni-directional tilt threshold sensing. For each of these types there are four versions to cover a variety of switching angles. The exact switching angle can be adjusted with the PCB mounted rotary switches. With the dual axis version the tilt threshold (the trip angle) can be adjusted individually for the X and Y axis. With the single axis version, only the X axis is monitored, and with the omni-directional version, the measurement of both axis is combined to calculate the resultant tilt angle, and the switch will operate if the threshold angle is exceeded in any direction of tilt. Once the tilt threshold is reached the relay operates and the switch contacts are closed. This can be used to sound an alarm, switch on a warning light, or interface directly to a machines control system. The device is available with either an ABS housing, or a robust compact Anodised Aluminium housing designed for harsh operating environments. The devices have a highly accurate and repeatable switching threshold, and built in analogue and digital noise filtering to reduce the effects of vibration. Standard models are readily available from stock, but they are highly factory configurable and can be supplied with custom options to suit most OEM requirements (see page 5). All of these devices are manufactured, calibrated and tested in our UK factory to ensure compliance with the stated specification. Level Developments Ltd. Croydon, Surrey, CR0 2DN 97-99 Gloucester Road United Kingdom

level developments ETS : Precision Tilt Switch With Adjustable ThresholdSpecifications Part Number Series Type: ETS - ABS Housing ETSM - Aluminium Housing Minimum switching angle setting Maximum switching angle setting S - Single axis D - Dual axis O - Omni directional Customer specific options (optional) Example 1: ETS-10-25-D ABS Housing Adjustable switching range : 10 to 25° Dual axis Anodised Aluminium Housing Adjustable switching range : 1 to 4° Single axis Level Developments Ltd. Croydon, Surrey, CR0 2DN t : +44 (0)20 8684 1400 sales@leveldevelopments.com 97-99 Gloucester Road United...

level developments ETS : Precision Tilt Switch With Adjustable Threshold Housing Drawing (ABS) Axis Direction (Single Axis Mode) Level Developments Ltd. Croydon, Surrey, CR0 2DN t : +44 (0)20 8684 1400 sales@leveldevelopments.com 97-99 Gloucester Road United Kingdom f : +44 (0)20 8684 1422 www.leveldevelopments.com

level developments ETS : Precision Tilt Switch With Adjustable Threshold Housing Drawing (Anodised Aluminium) Axis Direction X Axis (Single Axis Mode) Level Developments Ltd. Croydon, Surrey, CR0 2DN t : +44 (0)20 8684 1400 sales@leveldevelopments.com 97-99 Gloucester Road United Kingdom f : +44 (0)20 8684 1422 www.leveldevelopments.com

1. Standard length : 2m (others on request) 2. Core wires, tin plated copper, 7x0.2mm strands per conductor (24 AWG). 5 conductors colours brown, green, yellow, grey and white. PVC core insulation. 3. Braided screen of tin copper wire with minimum 85% coverage. 4. PVC dark grey outer jacket Certification The products are type approved to in accordance with the following directive(s): EMC Directive 2004/108/EC And it has been designed, manufactured and tested to the following specifications: BS EN61326-1:2006 Electrical equipment for measurement, control and laboratory use - EMC Requirements...

ETS : Precision Tilt Switch With Adjustable Threshold Setting the Zero Position As supplied, the tilt switch will operate when the threshold angle is reached with respect to an absolute level plane. If however the unit is not mounted perfectly horizontally any error can be removed using the zero set switch. This is a small push button switch on the printed circuit board inside the housing. Figure 5 : Mounted Horizontally On Base LED The maximum off level (horizontal) that can be electronically compensated is ±10° in any direction, however to get the best switching accuracy and to minimise...

ETS : Precision Tilt Switch With Adjustable Threshold level developmentsMounting The Unit • The unit should be mounted in the horizontal plane. • It can be mounted base down, or base up (inverted). See figures 1 and 2 • If the unit is not mounted perfectly horizontally any error can be removed after wiring using the zero set switch. See section below titled 'Zero Setting' for more information. • The maximum off level (horizontal) that can be electronically corrected is ±10° in any direction. • However to get the best switching accuracy and to minimise the effect of temperature on the...

level developments ETS : Precision Tilt Switch With Adjustable Threshold Setting the Tilt Threshold The tilt threshold can be adjusted to set the angle at which the device will trigger. The range of adjustment will depend on the model purchased (see table). The tilt threshold is set via the small rotary switches on the PCB. There are two switches, one which sets the tilt threshold in the X axis and one for the Y axis. For single axis and omni-directional models, only the S1 switch is used, and the S2 switch has no function. The switches are labelled S1 and S2 on the PCB (figure 7) and the...