Kracht AS 8 User manual

D.0037710002
Operating instructions (Translation)
Indicator AS 8
88037710002-01
Englisch
2018-09-19

Table of Content
1 General 4
1.1 About the documentation 4
1.2 Manufacturer´s address 4
1.3 Symbolism 4
2 Safety 6
2.1 Intended use 6
2.2 Personnel qualification and training 6
2.3 Basic safety instructions 6
2.4 Basic hazards 7
3 Device description 8
3.1 Functional principle 8
3.2 Possible versions 9
3.3 Type key 11
4 Technical data 12
4.1 General information 12
4.2 Electrical data 13
5 Transport and storage 14
5.1 Transport 14
5.2 Storage 14
6 Electrical connection 15
6.1 Terminal assignment 15
6.2 Setting for the supply voltage 16
6.3 Terminal layout: Supply voltage 17
6.4 Terminal layout: Sensor operating voltage 18
6.5 Terminal layout: Relay contacts 19
6.6 Terminal layout: Analogue output 19
6.7 Terminal layout: Printer 20
6.8 Configuration via serial interface 22
7 Operation start-up 23
7.1 Preparation 23
7.2 Input 23

7.2.1 Start input 23
7.2.2 Changing the menu code 24
7.2.3 Changing the input value 24
7.2.4 End input 24
7.3 Dip switch 25
7.3.1 Setting for the measured variable 25
7.3.2 Setting for the time basis 26
7.4 Input parameter 27
7.4.1 Overview menu code numbers 27
7.4.2 Menu code 00 28
7.4.3 Menu code 01 29
7.4.4 Menu code 02 29
7.4.5 Menu code 03 - 06 30
7.4.6 Menu code 07 31
7.4.7 Menu code 08 32
8 Maintenance 33
9 Repairs 34
9.1 Safety instructions for repair 34
9.2 General 34
9.3 Detecting and eliminating failures 35

1 General
1.1 About the documentation
These operating instructions describe the installation and operation of the
following device:
Indicator AS 8
The device is manufactured in different versions. Information about the ver-
sion concerned in the individual case can be found on the device's type plate.
These operating instructions are a component of the device and must be kept
accessible for the personnel near the device at all times.
If you have any questions about these operating instructions, please contact
the manufacturer.
1.2 Manufacturer´s address
KRACHT GmbH
Gewerbestraße 20
DE 58791 Werdohl
phone: [phone]
fax: [phone]
email: [email protected]
web: www.kracht.eu
1.3 Symbolism
DANGER
Identificationofanimmediatehazard,whichwouldresultindeathorsevere
bodily injury if not avoided.
WARNING
Identification of a potential medium risk hazard, which would lead to death
or severe bodily injury if not avoided.
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CAUTION
Identification of a low risk hazard, which could lead to minor or medium
bodily injury if not avoided.
NOTICE
Flagging of notices to prevent property damage.
Identification of basic safety instructions. Non-compliance can lead to haz-
ards for people and the device.
Flagging of special user tips and other especially useful or important infor-
mation.
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2 Safety
2.1 Intended use
1. The unit is provided to display and evaluate fluid flow.
2. The device may only be operated with KRACHT flow meters or trans-
mitters with incremental input signals.
3. The unit must not be used in areas with potentially explosive atmos-
pheres, in medical equipment areas or in areas of usage according to
DIN EN 61010-1:2011-07; VDE 04-1:2011-07.
4. Thedevicemaybeoperatedonlyinusualindustrialatmospheres.Ifthere
are any aggressive substances in the air, always ask the manufacturer.
5. Operation of this unit is only permissible with compliance with these op-
erating instructions.
Deviating operating conditions require the express approval of the man-
ufacturer.
6. In case of any use of the device not according to specification, any war-
ranty is voided.
2.2 Personnel qualification and training
The staff designated to assemble, operate and service the device must be
properly qualified. This can be through training or specific instruction. Per-
sonnel must be familiar with the contents of this operating instructions.
Read the operating instructions thoroughly before use.
2.3 Basic safety instructions
1. Comply with existing regulations on accident prevention and safety at
work along with any possible internal operator regulations.
2. Pay attention to the greatest possible cleanliness.
3. Wear suitable personal protection equipment.
4. Do not remove, make illegible or obliterate type plates or other referen-
ces on the device.
5. Do not make any technical changes on the device.
6. Maintain and clean the device regularly.
7. Use spare parts approved by the manufacturer only.
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2.4 Basic hazards
WARNING
Exposed electrical components!
Supply voltage 120 V AC / 230 V AC
1. Follow the special safety regulations during all work on electrical instal-
lations.
2. Only allow electricians to work on electrical systems.
3. Only use connection lines that are resistant to ambient influences and
media.
WARNING
Malfunction!
Riskofinjuryduetooperatingmistakesorfailureoftheunitwhencontrolling
plants or process sequences.
1. Suitable safety precautions must be taken when the device is used.
2. In case of a fault or change of the operating behaviour, put the unit out
of service.
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3 Device description
3.1 Functional principle
Devices of the type series AS 8 are display and control devices. The different
measurements and displays are defined via the variant selection.
The display unit is freely programmable after defining the variants. Program
using three buttons that are accessible after removing the front panel. For the
version with membrane keypad, the entry is made directly on the front panel.
Display and control units of the type series AS 8 process incremental input
signals from KRACHT flow meters and other transducers.
If the unit is operated with a flow meter that has one sensor, it is referred to
as single-channel sampling.
If the unit is operated with a flow meter that has two sensors, it is referred to
as two-channel sampling. The two-channel scanning facilitates a higher
measuring resolution and detection of the direction of the flow rate.
Two relays are always available for external subsequent processing. An an-
alogue output or a serial interface are available depending on the version.
Variants
Standard
The AS 8 standard version is a display unit for dynamic flow and volume
measurement.
The input signals are filtered in the unit, converted, and computed into the
physical sizes of flow rate or volumes.
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3.2 Possible versions
Installed unit AS 8
Standard
AS 8 as 19" plug-in unit
The AS 8 is installed in a 19" front
panel 3U 25TE.
All connections of the AS 8 are
wiredtoaEuro card and are avail-
able there on a 32-pin male multi-
point connector for further pro-
cessing.
Wiring of the AS 8 to the male multipoint connector
PIN Male multipoint
connector Terminal AS 8 Code
ac2 8 12 V Encoder supply
ac4 10 Channel 1
ac6 11 Channel 2
ac8 12 Totalization release
ac10 13 Printer release
ac12 14 TXD / Analogue output (+)
ac14 15 RXD / Analogue output (-)
ac16 5 Relay contacts 1
ac18 6 Relay contacts 2
ac20 n.c.
ac22 2 Power supply (GND, N)
ac24 1 12/24 V DC, 120/230 V AC (+, L)
ac26 3 PE
ac28 n.c.
ac30 7 Relay contacts Basis
ac32 9 0 V
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AS 8 in desktop housing
AS 8 in desktop
housing is available
in "Analogue output"
and"Serialinterface"
versions.
Rear view
Version: Analogue output
Version: Serial interface
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