WIKA A-IAI-1, A-AI-1 Operating Instructions Manual
Operating instructions
Betriebsanleitung
DE
EN
Attachable indicator model A-IAI-1
Aufsteckanzeige Typ A-IAI-1
Attachable indicator model A-IAI-1
DE
EN
14016825.03 12/2018 EN/DE
Operating instructions model A-IAI-1
Page 3 - 26
Betriebsanleitung Typ A-IAI-1
Seite 27 - 51
WIKA operating instructions attachable indicator model A-IAI-1
2
© 2012 WIKA Alexander Wiegand SE & Co. KG
All rights reserved. / Alle Rechte vorbehalten.
WIKA
®
is a registered trademark in various countries.
WIKA
®
ist eine geschützte Marke in verschiedenen Ländern.
Prior to starting any work, read the operating instructions!
Keep for later use!
Vor Beginn aller Arbeiten Betriebsanleitung lesen!
Zum späteren Gebrauch aufbewahren!
EN
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Contents
Contents
1. General information 4
2. Safety 5
2.1 Intended use 6
2.2 Personnel qualication 6
2.3 Additional safety instructions for instruments per ATEX 7
2.4 Special hazards 8
2.5 Labelling / Safety marks 10
3. Specications 11
4. Design and function 13
4.1 Description 13
4.2 Scope of delivery 13
5. Transport, packaging and storage 14
5.1 Transport 14
5.2 Packaging 14
5.3 Storage 14
6. Commissioning, operation 15
6.1 Electrical connection 15
6.2 Pin assignment 15
6.3 Conguration of the display 17
7. Maintenance and cleaning 21
7.1 Maintenance 21
7.2 Cleaning 21
8. Faults 21
9. Dismounting, return and disposal 23
9.1 Disassembly 23
9.2 Returns 23
9.3 Disposal 24
Appendix 1: EU Declaration of conformity 25
Declarations of conformity can be found online at www.wika.com.
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1. General information
■
The model A-IAI-1 attachable indicator described in the operating
instructions has been manufactured using state-of-the-art technology. All
components are subject to stringent quality and environmental criteria
during production. Our management systems are certied to ISO 9001
and ISO 14001.
■
These operating instructions contain important information on handling the
instrument. Working safely requires that all safety instructions and work
instructions are observed.
■
Observe the relevant local accident prevention regulations and general
safety regulations for the instrument's range of use.
■
The operating instructions are part of the product and must be kept in
the immediate vicinity of the instrument and readily accessible to skilled
personnel at any time.
■
Skilled personnel must have carefully read and understood the operating
instructions prior to beginning any work.
■
The manufacturer's liability is void in the case of any damage caused by
using the product contrary to its intended use, non-compliance with these
operating instructions, assignment of insuciently qualied skilled personnel or unauthorised modications to the instrument.
■
The general terms and conditions contained in the sales documentation
shall apply.
■
Subject to technical modications.
■
Further information:
- Internet address: www.wika.de / www.wika.com
- Relevant data sheet: AC 80.07
- Application consultant: Tel.: +49 9372 132-0
Fax: +49 9372 132-406
E-mail: info@wika.com
1. General information
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Explanation of symbols
WARNING!
... indicates a potentially dangerous situation that can result in
serious injury or death, if not avoided.
CAUTION!
... indicates a potentially dangerous situation that can result in
light injuries or damage to equipment or the environment, if not
avoided.
Information
... points out useful tips, recommendations and information for
ecient and trouble-free operation.
DANGER!
... identies hazards caused by electric power. Should the
safety instructions not be observed, there is a risk of serious or
fatal injury.
WARNING!
... indicates a potentially dangerous situation in the hazardous
area that can result in serious injury or death, if not avoided.
2. Safety
WARNING!
Before installation, commissioning and operation, ensure
that the appropriate instrument has been selected in terms of
measuring range, design and specic measuring conditions.
Non-observance can result in serious injury and/or damage to
the equipment.
Further important safety instructions can be found in the
individual chapters of these operating instructions.
1. General information / 2. Safety
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2. Safety
2.1 Intended use
The model A-IAI-1 attachable indicator is suitable for insertion between an
intrinsically-safe transmitter and the corresponding output connector (angular
connector).
The instrument has been designed and built solely for the intended use
described here, and may only be used accordingly.
The technical specications contained in these operating instructions must
be observed. Improper handling or operation of the instrument outside of its
technical specications requires the instrument to be taken out of service
immediately and inspected by an authorised WIKA service engineer.
Handle electronic precision measuring instruments with the required care
(protect from humidity, impacts, strong magnetic elds, static electricity and
extreme temperatures, do not insert any objects into the instrument or its
openings). Plugs and sockets must be protected from contamination.
If the instrument is transported from a cold into a warm environment, the
formation of condensation may result in instrument malfunction. Before
putting it back into operation, wait for the instrument temperature and the
room temperature to equalise.
The manufacturer shall not be liable for claims of any type based on operation contrary to the intended use.
2.2 Personnel qualication
WARNING!
Risk of injury should qualication be insucient!
Improper handling can result in considerable injury and
damage to equipment.
■
The activities described in these operating instructions may
only be carried out by skilled personnel who have the qualications described below.
■
Keep unqualied personnel away from hazardous areas.
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2. Safety
Skilled electrical personnel
Skilled electrical personnel are understood to be personnel who, based on
their technical training, know-how and experience as well as their knowledge
of country-specic regulations, current standards and directives, are capable
of carrying out work on electrical systems and independently recognising
and avoiding potential hazards.
The skilled electrical personnel have been specically trained for the work
environment they are working in and know the relevant standards and regulations.
The skilled electrical personnel must comply with current legal accident
prevention regulations.
2.3 Additional safety instructions for instruments per ATEX
WARNING!
Non-observance of these instructions and their contents may
result in the loss of explosion protection.
Electrical specications in accordance with the EC-type examination
certicate.
Input circuit:
In intrinsically-safe ignition protection type Ex ia/ib IIC/IIB.
Only for connection to certied intrinsically-safe circuits.
Maximum values:
U
i
= 28 V
I
i
= 100 mA
P
i
= 1,200 mW
Maximum eective internal capacitance C
i
< 13 nF
The maximum eective internal inductance is negligibly small.
WARNING!
Special conditions for all variants:
1. Modications or repairs of the device may not be performed
by the customer. For maintenance or repair the device must
be sent to the manufacturer.
2. The opening of the device is only permitted outside the
hazardous area.
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2. Safety
WARNING!
Special conditions for all variants:
3. The setting of the internal keys may be performed only by
trained personnel.
4. The devices meet the requirements of intrinsic safety only
after angle plugs, which are appropriate to the required
lP protection degree, are connected. The devices shall
be installed in places that are protected against external
damage.
5. The devices back side may not be cleaned with a cloth or
other means, which can generate an electrostatic charge.
2.4 Special hazards
WARNING!
Observe the information given in the applicable type examina-
tion certicate and the relevant country-specic regulations for
installation and use in hazardous areas (e.g. IEC 60079-14,
NEC, CEC). Non-observance can result in serious injury and/or
damage to equipment.
DANGER!
Danger of death caused by electric current
Upon contact with live parts, there is a direct danger of death.
The instrument may only be installed and mounted by skilled
personnel.
WARNING!
Do not use this instrument in safety or Emergency Stop
devices. Incorrect use of the instrument can result in injury or
material damage.
This instrument has been designed and tested in accordance
with the relevant safety regulations for electronic measuring
instruments.
The trouble-free operation and reliability of the instrument can
only be guaranteed if the general safety measures and the
instrument-specic safety instructions given in this manual are
followed.
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2. Safety
WARNING!
■
Observe the working conditions in accordance with chapter
3 "Specications".
■
Prior to opening the instrument, disconnect it from the power
supply. Take care that, in tting the instrument and connections, all components are protected against direct contact.
■
Observe standard regulations and safety rules for electrical,
low-power and high-power systems, especially any country-
specic safety regulations (for example VDE 0100).
■
Design the wiring particularly carefully when connecting
to other devices (e.g. a PC). Under certain circumstances,
internal connections in third-party devices (e.g. GND
connected to the safety earth) can lead to impermissible
voltages.
■
If the connected cable is longer than 30 metres, or it runs
outside the building, an additional and suitable overvoltage
protection should be provided.
The safety of the operator may be endangered if, for example:
■
there is visible damage to the instrument.
■
the instrument is not working as specied.
■
the instrument has been stored under unsuitable conditions for an
extended period of time.
If there is any doubt, please return the instrument to the manufacturer for
repair or maintenance.
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2. Safety
2.5 Labelling/Safety marks
2.5.1 Product label
2.5.2 Explanation of symbols
Before mounting and commissioning the instrument, ensure
you read the operating instructions!
Input
current
Date of manufacture
Serial no.
Order code
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3. Specications
3. Specications
Attachable indicator
Display
Principle 7-segment LCD, 4-digit, character size 10 mm
Indication range -1999 ... 9999
Accuracy ±0.2 % of the measuring span ±1 digit
Measuring rate 5 measurements/sec
Voltage supply
Electrical connection To intrinsically-safe transmitters with 4 ... 20 mA
output and angular connector to DIN 175301803 A.
Power supply Not required, since the attachable indicator is
powered by the 4 ... 20 mA loop
Voltage drop approx. DC 3.0 ... 3.5 V (typ.)
Permitted current carrying
capacity
max. 25 mA (40 mA short term)
Case
Material ABS, front window from polycarbonate
Ingress protection IP 65 per EN 60529 / IEC 529
Dimensions ca. 48.5 x 48.5 x 35.5 mm (without angular
connector)
ca. 90 x 50.5 x 39.5 mm (with angular connector)
Weight approx. 80 g
Permissible ambient conditions
Operating temperature -20 ... +50 °C
Storage temperature -20 ... +50 °C
Relative humidity < 80 % r.h. non-condensing
Temperature eect on the
indication
0.1 % / 10 K
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3. Specications
Safety-related maximum values
Power supply
U
i
= DC 9 ... 28 V
Short circuit current
Ii = 100 mA
Power limitation
P
i
= 1,200 mW
Maximum eective internal
capacitance
Ci < 13 nF
Maximum eective internal
inductance
negligibly small
For further specications see WIKA data sheet AC 80.07 and the order documentation.
WARNING!
For further important safety instructions for operation in hazardous areas see chapter 2.3 "Additional safety instructions for
instruments per ATEX".
Dimensions in mm
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4. Design and function
4. Design and function
4.1 Description
The model A-IAI-1 attachable indicator is a general-purpose, microprocessor-controlled indicator for standard 4 ... 20 mA signals. It does not require
its own power supply, but rather, it is powered directly from the measuring
current. The display of the measured value is made on a 4-digit LCD display
with a maximum Indication range of -1999 ... 9999 digits.
The model A-IAI-1 attachable indicator is suitable for use in hazardous areas
in accordance with:
II 2G Ex ia IIC/IIB T4 Gb respectively II 2G Ex ib IIC/IIB T4 Gb
The A-IAI-1 has been designed for the connection of any intrinsically-safe
transmitter (with 4 ... 20 mA output). The matching of the indicator range
to the transmitter is made without external aids through the direct input
of the upper and lower measuring range limits and the decimal point. The
parameters and limit values are entered using three keys. All programmable
parameters are saved in an EEProm and are retained in the event of a loss of
power (for a minimum of 10 years).
The attachable indicator has its own integrated self-diagnostics, which
continuously checks that the key components of the instrument are working
properly. The integrated self-diagnostics, as well as the reporting of an overrange or under-range condition, ensure high operational safety.
The attachable indicator is delivered tested and fully calibrated. It is therefore
ready for operation, though it must rst be congured for the particular application. See chapter 6.3 "Conguration of the display".
4.2 Scope of delivery
The scope of delivery includes the following components:
■
Attachable indicator
■
2 mounting screws (68 mm and 75 mm)
■
Black prole sealing
■
Operating instructions
Cross-check scope of delivery with the delivery note.
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5. Transport, packaging and storage
5. Transport, packaging and storage
5.1 Transport
Check the attachable indicator for any damage that may have been caused
during transportation. Obvious damage must be reported immediately.
5.2 Packaging
Do not remove packaging until just before mounting.
Keep the packaging as it will provide optimum protection during transport
(e.g. change in installation site, sending for repair).
5.3 Storage
Permissible conditions at the place of storage:
■
Storage temperature: -20 ... +50 °C
■
Humidity: 0 ... 80 % r. h. (non-condensing)
Avoid exposure to the following factors:
■
Direct sunlight or proximity to hot objects
■
Mechanical vibration, mechanical shock (putting it down hard)
■
Soot, vapour, dust and corrosive gases
■
Potentially explosive environments, ammable atmospheres
Store the attachable indicator in its original packaging in a location that fulls
the conditions listed above. If the original packaging is not available, pack
and store the instrument as described below:
1. Wrap the instrument in an antistatic plastic lm.
2. Place the instrument, along with shock-absorbent material, in the packaging.
3. If stored for a prolonged period of time (more than 30 days), place a bag
containing a desiccant inside the packaging.
WARNING!
Before storing the instrument (following operation), remove any
residual media. This is of particular importance if the medium is
hazardous to health, e.g. caustic, toxic, carcinogenic, radioactive, etc.
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6. Commissioning, operation
6. Commissioning, operation
6.1 Electrical connection
The connection of the attachable indicator is made via simply plugging it
between an existing transmitter and connector using a specic adapter
design for connectors to DIN 175301-803 A.
No separate power supply is needed since the instrument is powered directly
from the measuring current.
The connection and commissioning should only be carried out
by skilled, qualied personnel. An incorrect connection could
damage the indicator.
CAUTION!
Note the maximum permissible input current of 40 mA!
6.2 Pin assignment
The assignment of the angular connector is designed for the most common-
ly-used conguration for the respective input signal. Since this assignment
is not standardised, it can happen that the assignment for the connected
transmitter does not match the assignment of the attachable indicator.
Standard assignment for the model A-IAI-1 angular connector
Contact no. Wiring colour Pin Female connector
1 grey
1)
display + display 2 red connected
3 black connected
4 yellow connected
1) The wire between pin 1 and the device is blue, the wire between the device and female contact 1 is
grey. Only the grey wire can be changed.
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Pin contacts
Female connector
6. Commissioning, operation
If the transmitter to be connected does not have the negative power terminal
on contact 2 and the positive power terminal is not on contact 1, then the
assignment of the A-IAI-1 angular connector and the external angular
connector must be matched accordingly. To do this, open the A-IAI-1 angular
connector and exchange the wires from contact 1 and contact 2, so that
these match the connection of the transmitter to be attached.
Now wire both contacts in the angular connector accordingly.
General information on changing the angular connector assignment
Lift out the coupling assembly using a screwdriver in the recess on the side.
Change the assignment in line with the instructions for the relevant input
signal.
Then snap the coupling assembly back into the cover. There are 4 dierent
output orientations to choose from - each at 90° to each other. Attach the
angular connector and screw the connector together using the long bolt
delivered with the unit (don't forget the seals).
In the angular connector, pin contact 2 is directly connected (1:1) with the
female contact. Between pin contact 1 (+) and female contact 1 (-) is the
A-IAI-1.
Pin contact 3 and 4 are also connected 1:1 with the female connec-
tor.
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