Gill 7010 User 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. Conguration 7
3.1 Tank proling 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. Specications 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 conguration 18
6. Maintenance 19
7. Appendix 20
Robust level sensors for varied applications
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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 eect of temperature changes on the
output in a given liquid with osets 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 specied 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 certied 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.
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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
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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 dierent 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
congured 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. Conguration
The sensor can be congured 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 congure 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.
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3.1 Tank proling
The sensor is congured for use with regular tank proles, 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 proling can be
used. This can be done in the GSlevel software and is covered in detail in the GSlevel User Manual.
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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 certied 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
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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 specic sensor
requirements when mounted at an angle.
Before installation, ensure you have sucient 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 aect 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.
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4.3 1.125” UNF Thread installation
The sensor is supplied with both an O-ring and a Gasket. To use the supplied O-ring, the mounting hole
requires a chamfer to be machined around the upper edge. If a chamfer cannot be created, then the
supplied Gasket should be used. Ensure that sucient space is allowed around the sensor ange for the
cable to bend.
4.3.1 Using the O-ring
The recommended mounting hole and chamfer size for the O-ring is shown below.
Fit the O-ring above the male thread on the sensor. Ensure the O-ring is centred and sits within the chamfer;
tighten the sensor using a adjustable spanner until the sensor face is ush with the top of the tank and a
torque of 50 Nm is achieved.
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4.3.2 Using the gasket
The recommended mounting hole for the gasket is shown below.
Fit the gasket over the thread mount, black face up. Ensure the gasket is centred under the sensor and
tighten the sensor using a adjustable spanner to a torque of 50 Nm.
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4.4 1.25” BSP Thread installation
The sensor is supplied with both an O-ring and a Gasket. To use the supplied O-ring, the mounting hole
requires a chamfer to be machined around the upper edge. If a chamfer cannot be created, then the supplied
Gasket should be used. Ensure that sucient space is allowed around the sensor ange for the cable to bend.
4.4.1 Using the O-ring
The recommended mounting hole and chamfer size for the O-ring is shown below.
Fit the O-ring above the male thread on the sensor. Ensure the O-ring is centred and sits within the chamfer;
tighten the sensor using a adjustable spanner until the sensor face is ush with the top of the tank and a
torque of 50 Nm is achieved.
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4.4.2 Using the gasket
The recommended mounting hole for the gasket is shown below.
Fit the gasket over the thread mount, black face up. Ensure the gasket is centred under the sensor and
tighten the sensor using a adjustable spanner to a torque of 50 Nm.
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4.5 SAE 5-Bolt installation
All 7010 sensors using the 1.125” UNF or 1.25” BSP tting come with a SAE 5-bolt installation option. This
installation option requires 5 holes to be tapped into the tank. The pattern for these holes is outlined below.
The sensor should be tted with a gasket if the SAE 5-bolt installation method is used. Fit the gasket over the
bolts, black face up, and tighten the bolts to a torque of 10 Nm each.
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4.6 2” NPT Thread installation
The 2”NPT version of the sensor uses a tapered thread system where a seal is made to the tank as the thread
is tightened. The following diagrams give dimensions relevant to the installation. A suitable aperture should
be made available in the tank to accept the 2”NPT tting.
Use of PTFE tape or pipe sealant is recommended for this installation type.
PTFE or
Pipe sealant
Tapered threads
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5. Specications
5.1 General
Primary Output Accuracy: ±2% FSD @ 20°C
Operating Temperature: -40 to 125°C
Humidity: 93% RH at 40°C
Pressure: 10 Bar (dierential and absolute)
Compatible Media: Fresh Water, Saltwater, Ethylene Glycol, Gasoline, Unleaded, LRP, Diesel
Please consult Gill for other liquids
Seal Materials: Fluorosilicone O-rings
Klingersil Gasket
Ingress Protection: IP66, IP68
EMC: EN 61000, EN 61326, EN 60945
5.2 Mechanical
Construction Materials: Stainless Steel 316, FEP, PEI
Probe Length: 100mm to 2000mm (in standard increments)
Mounting Options: SAE 5-bolt; 1.125”UNF, 1.25” BSP or 2” NPT threaded
Weight: From 300g (dependent on length)
5.3 Electrical
Voltage: 4-20 mA
Supply Voltage: +5 to +32 VDC +9 to +32 VDC
Over Voltage Protection: >32 VDC
Supply Current @ 12 VDC: < 15 mA
Reverse Polarity Protection: to -32 VDC
Analogue Resolution: 10 bit
Report Rate: 10 Hz
Sensor Conguration: Accessible via USB
5.4 Analogue outputs
Factory Calibrated Output: 0.25 V – 4.75 V
Maximum Output Range: 0.25 V – 10.0 V
Current Output: 4 – 20 mA
Switch Output: Open collector output 50 V / 1A max
Switch to ground
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5.5 Connections
Cable: 20 AWG TYPE 44, DR25 sleeving
Cable Tail Length:1000mm
5.6 Part number conguration
The conguration of the sensor can be determined from its part number designation, engraved on the
ange. The interpretation of the part number designation is outlined below.
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6. Maintenance
The sensor requires no maintenance to function correctly. There are no user serviceable or moving parts
within the sensor.
For correct operation it is important to congure the sensor by installing and running the GSlevel sensor user
software from the Gill website (www.gillsc.com/software). This software will allow setup of the correct output
and, through using the tank proling feature, will oset the eect of irregular shaped tanks on the accuracy
of the measured level.
Please contact Gill Sensors or Controls Ltd using the details at the end of this document in the rst instance
with any further issues to be resolved.
Where necessary a product return may only be arranged with prior authorisation from Gill Sensors & Controls
Ltd. An RMA authorisation number will be issued to allow tracking through company systems and ecient
resolution. Please DO NOT return the sensor without having rst obtained an RMA number.
When the product has reached end of life, please dispose of responsibly according to local waste disposal
regulations.
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7. Appendix
EU DECLARATION OF CONFORMITY
In accordance with Ref. Ares(2015)1600946 - 15/04/2015
Document Reference Number: 9180-0014
This declaration of conformity is issued under the sole responsibility of the manufacturer:
Manufacturer
Gill Sensors
&
Controls Limited,
Unit 600
Ampre
ss Park, Lymington,
SO41 8LW. United Kingdom
Authorised Representative
ProductIP AR Services Rubensstraat
211, 6717 VE EDE
The
Netherlands (for authorities only)
Object of the Declaration Description LEVEL SENSOR LIQUID LEVELPRO
Object of the Declaration Part Numbers
7010
-
00
-
1KA
-
xxxx, 7010
-
00
-
1KB
-
xxxx,
7010-00-1KC-xxxx, 7010-00-1LA-xxxx,
7010-00-1LB-xxxx, 7010-00-1LC-xxxx,
7010-00-2KA-xxxx, 7010-00-2KB-xxxx,
7010-00-2KC-xxxx, 7010-00-2LA-xxxx,
7010-00-2LB-xxxx, 7010-00-2LC-xxxx,
7010-00-3KA-xxxx, 7010-00-3KB-xxxx,
7010-00-3KC-xxxx, 7010-00-3LA-xxxx,
7010-00-3LB-xxxx, 7010-00-3LC-xxxx,
7010-00-4KA-xxxx, 7010-00-4KB-xxxx,
7010-00-4KC-xxxx, 7010-00-4LA-xxxx,
7010-00-4LB-xxxx, 7010-00-4LC-xxxx
The object of the declaration described above is in conformity with the relevant Union harmonisation
legislation:
Reference Description
2014/30/EU Electromagnetic Compatibility (EMC) Directive
2011/65/EU +
(EU)2015/863 Restriction of Hazardous Substances (RoHS) Directive + amendments
References to the relevant harmonised standards used, or references to the specifications in relation to
which conformity is declared:
Reference Description
EN 60945:2002
Maritime navigation and radio communication equipment and systems. General
requirements. Methods of testing and required test results
EN 61326-1:2013
Electrical equipment for measurement,
control and laboratory use. EMC requirements.
Particular requirements.
Signed for and on behalf of: Gill Sensors & Controls Limited
Place of Issue Lymington, United Kingdom
Date of Issue 15th July 2021
Name Elizabeth Phillips
Function Director
Signature
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