Edwards ASG2-1000-1/8 NPT, ASG2-1000-NW16, ASG2-2000-NW16, ASG2-2000-1/8 NPT Instruction Manual
D357-35-880
Instruction Manual
Active Strain Gauge
Description Item Number
ASG2-1000-1/8 NPT D357-35-000
ASG2-1000-NW16 D357-36-000
ASG2-2000-1/8 NPT D357-37-000
ASG2-2000-NW16 D357-38-000
Issue A
Declaration of Conformity
We, Edwards Limited,
Crawley Business Quarter,
Manor Royal,
Crawley,
West Sussex, RH10 9LW, UK
declare under our sole responsibility, as manufacturer and person within the EU authorised
to assemble the technical file, that the product(s)
Active Strain Gauge 2
ASG2-1000-1/8 NPT D357-35-000
ASG2-1000-NW16 D357-36-000
ASG2-2000-1/8 NPT D357-37-000
ASG2-2000-NW16 D357-38-000
to which this declaration relates is in conformity with the following standard(s) or other
normative document(s)
EN61326-2-3: 2013 Electrical equipment for measurement, control and laboratory
(Class B Emissions, Use. EMC requirements. Particular requirements. Test
Basic Immunity) configuration, operational conditions and performance criteria
for transducers with integrated or remote signal conditioning
EN50581:2012 Technical Documentation for the Assessment of Electrical and
Electronic Products with respect to the Restriction of Hazardous
Substances
and fulfils all the relevant provisions of
2014/30/EU Electromagnetic Compatibility (EMC) Directive
2012/19/EU Waste from Electrical and Electronic Equipment (WEEE) Directive
2011/65/EU Restriction of Certain Hazardous Substances (RoHS) Directive
Note: This declaration covers all product serial numbers from the date this Declaration was
signed onwards.
15.07.2015, Eastbourne
Larry Marini, Senior Technical Manager Date and Place
This product has been manufactured under a quality management system certified to ISO 9001:2008
P200-06-900 Issue C
D357-35-880 Issue A
Contents
Section Page
1 Introduction .......................................................................................1
1.1 Scope of this manual .................................................................................................... 1
1.2 Description ................................................................................................................ 1
1.3 Gas dependency .......................................................................................................... 1
2 Technical data ....................................................................................3
2.1 Mechanical data .......................................................................................................... 3
2.2 Performance, operation and storage conditions ....................................................................3
2.3 Electrical data ............................................................................................................ 4
2.4 Material exposed to vacuum ........................................................................................... 4
3 Installation .................................................... .....................................5
3.1 Unpack and inspect ...................................................................................................... 5
3.2 Fit the ASG2 to the vacuum system ................................................................................... 5
3.3 Electrical connections ................................................................................................... 5
3.3.1 Connect to Edwards controller ........................................................................................ 5
3.3.2 Connect to your own supply and control equipment ............................................................... 5
Contents
4 Operation ..........................................................................................9
4.1 Pressure measurement .................................................................................................. 9
5 Maintenance ..................................................................................... 11
5.1 Zero adjustment ........................................................................................................11
5.2 Cleaning ..................................................................................................................12
6 Storage and disposal ............................................................ ..... .......... 13
6.1 Storage ...................................................................................................................13
6.2 Disposal ...................................................................................................................13
7 Spares and accessories ......................................................................... 15
7.1 Introduction .............................................................................................................15
7.2 Accessories ...............................................................................................................15
For return of equipment, complete the HS Forms at the end of this manual.
Illustrations
Figure Page
1 General views of ASG2 .................................................................................................. 2
2 Dimensions of ASG2 ...................................................................................................... 4
3 Pins on the ASG2 (viewed from above) ............................................................................... 6
4 Pins on the ASG2 adapter cable socket .............................................................................. 6
5 Schematic diagram of typical electrical connections using 4 pin DIN connector .............................. 7
6 Schematic diagram of typical electrical connections using the ASG2 adapter cable ......................... 7
7 Zero and span setting detail ..........................................................................................11
gea/0212/07/12
© Edwards Limited 2012. All rights reserved. Page i
Edwards and the Edwards logo are trademarks of Edwards Limited.
D357-35-880 Issue A
Contents
Tables
Table Page
1 Zeroing pressure ........................................................................................................11
Page ii © Edwards Limited 2012. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
D357-35-880 Issue A
CAUTION
WARNING
1Introduction
1.1 Scope of this manual
This manual provides installation, operation and maintenance instructions for the Edwards ASG2 (Active Strain
Gauge). You must use the ASG2 as specified in this manual.
Read this manual before you install and operate the ASG2. Important safety information is highlighted as WARNING
and CAUTION instructions; you must obey these instructions. The use of WARNINGS and CAUTIONS is defined below.
Warnings are given where failure to observe the instruction could result in injury or death to
persons.
Cautions are given where failure to observe the instruction could result in damage to the equipment, associated
equipment or process.
Introduction
The unit used through this manual conforms to the SI international system of units of measurement.
The following symbols appear on the ASG2:
Warning - refer to accompanying documentation.
Edwards offers European customers a recycling service.
1.2 Description
The ASG2, shown in Figure 1, is a strain gauge. The measurement range of the ASG2-1000 is 1000 to 1 mbar. The
range of the ASG2-2000 is 2000 to 1 mbar.
The ASG2 requires a 12 to 32 V d.c. power supply: it has a 0 to 10 V d.c. linear analogue output which is related to
pressure. The ASG2 is compatible with all of the Edwards TICs (Turbo/Instrument Controllers), with the ADD (Active
Digital Display) and with the enhanced ADC (Active Digital Controller). Alternatively, you can use an independent
power supply for the ASG2 and can read the ASG2 output signal with a voltmeter or an analogue-to-digital converter.
A standard Active gauge cable plus an ASG2 adapter cable are used to connect the Edwards controller. These are
available as accessories (refer to Section 7.2). To connect to an electrical supply and voltmeter, the 4-way connector
on the gauge head can be used.
A gauge identification signal is incorporated in the adapter cable: this is used by Edwards controllers to identify which
type of active gauge is connected.
1.3 Gas dependency
The pressure sensing technique depends on the deflection of a metal diaphragm. The measurement is therefore
completely independent of gas type.
© Edwards Limited 2012. All rights reserved. Page 1
Edwards and the Edwards logo are trademarks of Edwards Limited.
D357-35-880 Issue A
Introduction
Figure 1 - General views of ASG2
Page 2 © Edwards Limited 2012. All rights reser ved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
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