Gill 7010 User manual

gillsc.com
7010-30-086 Iss. 5
© 2021 Gill Sensors & Controls Limited
Robust level sensors for varied applications
Manual

Robust level sensors for varied applications
gillsc.com
7010-30-086 Iss. 5
© 2021 Gill Sensors & Controls Limited 2
Contents
1. Product description 3
1.1 Product overview 4
1.2 BSP, UNF and 5 bolt SAE models 4
1.3 NPT models 4
2. Getting started 6
3. Conguration 7
3.1 Tank proling 8
4. Installation 9
4.1 Parts supplied 10
4.2 Cable length & strain relief 10
4.3 1.125” UNF Thread installation 11
4.3.1 Using the O-ring 11
4.3.2 Using the gasket 12
4.4 1.25” BSP Thread installation 13
4.4.1 Using the O-ring 13
4.4.2 Using the gasket 14
4.5 SAE 5-Bolt installation 15
4.6 2” NPT Thread installation 16
5. Specications 17
5.1 General 17
5.2 Mechanical 17
5.3 Electrical 17
5.4 Analogue outputs 17
5.5 Connections 18
5.6 Part number conguration 18
6. Maintenance 19
7. Appendix 20

Robust level sensors for varied applications
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© 2021 Gill Sensors & Controls Limited 3
1. Product description
LevelPro Liquid Level Sensor is designed for use in harsh environments at extreme operating temperatures
where the continuous real-time liquid level monitoring of a variety of fuels, oils, chemicals, saline, and water
is required. The sensor has no moving parts, oats or mechanical linkages providing excellent long term
reliability.
Liquid level detection is achieved through solid-state capacitive technology. An outer tube and inner rod act
as the plates of a capacitor, with any liquid providing the dielectric between the two. As the liquid level rises
and falls, the capacitance of the sensor changes linearly. The on-board electronics process this and provide an
output as a voltage or current signal.
Calibration of the sensor is achieved by setting a maximum (full) and minimum (empty) level for the desired
liquid. The liquid level between these points is determined by proportionally relating the output to the two
set points, while taking account for the dielectric constant value of the liquid.
If requested, further accuracy can be gained by compensating for the eect of temperature changes on the
output in a given liquid with osets across the temperature range.
Your chosen calibration has passed through Gill Sensors & Controls Limited’s quality control to ensure the
sensor provides market leading measurement accuracy in your specied liquid.
The sensor is designed to operate in uids where deposits or build-up of sediment are not expected, as this
may block the bleed holes unless they are regularly maintained. For uids where deposits or build-up of
sediment are expected, please contact Gill Sensors & Controls Limited for a suitable sensor.
Safety Warning, This equipment is not ATEX certied and has not been designed for use in areas which
fall within the scope of the ATEX directive. If an area of intended usage is within the scope of the ATEX
directive, then contact Gill Sensors & Controls Ltd for further information.

Robust level sensors for varied applications
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© 2021 Gill Sensors & Controls Limited 4
A breakdown of the sensor is provided below with key measurement considerations.
Please contact Gill for any additional information required.
The sensor electronics are housed in the ange, outside the measurement tank. The outer tube is placed
into the measurement tank, such that will be submerged in liquid. The sensor can be installed using either
built in thread or a ve bolt SAE mounting, both providing a tank seal.
1.1 BSP, UNF and 5 bolt SAE models
NOTES
Diagram NOT to scale
All dimensions in mm
See technical drawings for full detail

Robust level sensors for varied applications
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© 2021 Gill Sensors & Controls Limited 5
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NOTES
Diagram NOT to scale
All dimensions in mm
See technical drawings for full detail
Outer Tube
Cable
Flange
NPT Thread
1.3 NPT models

Robust level sensors for varied applications
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2. Getting started
The analogue output cable has seven wires:
Red D.C. Power Supply
Black Ground
Orange Primary Output
Yellow Secondary Output
White TX
Green RX
Silver Drain Wire
The installation of the sensor has dierent requirements, depending on the analogue output:
Voltage
The sensor is provided with a factory calibrated output range of 0.25 V to4.75 V. The sensor can be
congured to a maximum output range of 0.25 V to 10 V.
The power supply must be at least 0.5V greater than the maximum output voltage required. The
switch output requires a pull-up resistor of 1 kOhm to 10 kOhms.
Current
The current output is 4 – 20 mA. The measurement output requires a 250 Ohm load resistor across the
output. The switch output requires a pull-up resistor of 1 kOhm to 10 kOhms.
Voltage Current
Supply Voltage +5 to +32 VDC +9 to +32 VDC
Over Voltage Protection >32 VDC >32 VDC
Supply Current @ 12 VDC <15 mA <15 mA
Reverse Polarity Protection Yes Yes
Analogue Resolution 10 bit 10 bit
Report Rate 10 Hz 10 Hz

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3. Conguration
The sensor can be congured using GSlevel software, available from www.gillsc.com/support. Select the
7010 Liquid Level Sensor from the “Select Product” dropdown list.
The minimum operating system requirements are:
32-bit (x86) or 64-bit (x64) processor
Windows® 7 or later
1 Gb RAM
500 Mb disk space
One free USB port to connect a sensor
A connector is required to congure the sensor with a computer. Gill Sensors & Controls Limited provide an
RS232 to USB adaptor (P/N 1484-00-086). Please contact us if your require this device.
The GSlevel User Manual is accessible through the software. Install and run the software, then click the ‘Help’
button in the bottom right of the window, shown in the screenshot below.

Robust level sensors for varied applications
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3.1 Tank proling
The sensor is congured for use with regular tank proles, such as that shown below.
The sensor is supplied so that it reports the level in a linear path as the level rises. However, this will not be
suitable for an irregular shaped tank, such as that shown below.
In this situation, 50% of the tank volume is not half way up the probe. To correct for this tank proling can be
used. This can be done in the GSlevel software and is covered in detail in the GSlevel User Manual.

Robust level sensors for varied applications
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4. Installation
Do not remove the packaging until you are ready to install the sensor. Prior to installation, please check the
sensor for any signs of transit damage. Contact Gill Sensors & Controls Limited immediately if this is the case.
IMPORTANT DO NOT attempt to cut the sensor to length or bend the sensor. Both actions will result in the
sensor failing and will invalidate the warranty.
IMPORTANT The sensor must not be used in a tank that is not adequately vented.
IMPORTANT The sensor ange and cable must not be immersed in the liquid.
IMPORTANT Diagrams in this section are not to scale and are for reference only.
This manual covers installation of sensors in the conventional manner (see below). For inverted installation
(see below) please contact Gill Sensors & Controls Limited.
Safety Warning, This equipment is not ATEX certied and has not been designed for use in areas which
fall within the scope of the ATEX directive. If an area of intended usage is within the scope of the ATEX
directive, then contact Gill Sensors & Controls Ltd for further information.
All 7010 sensors using the 1.125” UNF or 1.25”BSP tting can be mounted using the SAE 5-bolt pattern using
the supplied gasket. These sensor types can also be tted with the supplied O-ring. The 2” NPT version has a
tapered thread and is sealed as the thread is tightened onto the tank using either PTFE tape or pipe sealant
(not included). Use of an O-ring or gasket is not necessary with this version of the sensor.
The sensor must be installed on a at surface, such that it occupies the deepest part of the tank to be
measured.
The sensor can be installed at any angle from vertical to a maximum recommended angle of 45°. For sensors
over 500 mm in length in dynamic applications, in-tank support of the probe is recommended. Ensure that

Robust level sensors for varied applications
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the mounting hole in the tank is strong enough to withstand the forces imposed by the sensor from its weight
and the vibrations it may be exposed to. Please contact Gill Sensor & Controls Limited to discuss specic sensor
requirements when mounted at an angle.
Before installation, ensure you have sucient clearance above the tank in to order to mount the sensor. The
sensor is rigid, therefore the clearance height must be, at a minimum, the designated length of the sensor plus
30mm to allow for the ange on sensors with 1.125” UNF or 1.25”BSP ttings. The 2”NPT sensor has a top exit
cable and requires a minimum of 75mm clearance above the top of the tank. Sideways clearance may also be
required, and should be accounted for.
4.1 Parts supplied
7010 Liquid Level Sensor
O-ring and Gasket
Quick Start Guide
4.2 Cable length & strain relief
The sensor is provided with a ying lead of 1000mm, which may be shortened appropriate to the application.
Ensure that the cable is secured to avoid damage during operation. It is recommended that cable length is
kept to a minimum to prevent large voltage drops over the length of the cable which may aect the operation
of the sensor.
Cable strain relief is provided at the sensor. Care should be taken not to stress the cable at the cable entry. The
minimum recommended cable bend radius is 20mm. It is recommended that you do not connect the cable
before installation.