Kobold DAG-A34 User manual

Operating Instructions
for
Digital Indicating Unit
Model: DAG-A34

DAG-A34
page 2 DAG-A34 K06/0722
We don’t accept warranty and liability claims neither upon this publication nor in
case of improper treatment of the described products.
The document may contain technical inaccuracies and typographical errors. The
content will be revised on a regular basis. These changes will be implemented in
later versions. The described products can be improved and changed at any time
without prior notice.
© Copyright
All rights reserved.
1. Contents
1.Contents ........................................................................................................ 2
2.Note .............................................................................................................. 3
3.Instrument Inspection .................................................................................... 3
4.Regulation Use ............................................................................................. 3
5.Short Description ........................................................................................... 4
6.Assembly ...................................................................................................... 5
7.Electrical Connection .................................................................................... 6
8.Function, Description and Operation ............................................................. 7
9.Setting up the device ..................................................................................... 8
9.1Switching on ........................................................................................ 8
9.2Standard parameterization: .................................................................. 8
9.3Programming interlock RUN ................................................................ 9
9.4Extended parameterization .................................................................. 9
10.Reset to default values ................................................................................ 11
11.Functional principle of the switching points ................................................. 12
12.Technical Information .................................................................................. 13
13.Order Codes ............................................................................................... 15
14.Safety advice .............................................................................................. 16
15.Error elimination .......................................................................................... 17
16.Disposal ...................................................................................................... 18
17.EU Declaration of Conformance ................................................................. 19
Sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
Internet: www.kobold.com

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2. Note
Please read these operating instructions before unpacking and putting the unit into
operation. Follow the instructions precisely as described herein.
The instruction manuals on our website www.kobold.com are always for currently
manufactured version of our products. Due to technical changes, the instruction
manuals available online may not always correspond to the product version you
have purchased. If you need an instruction manual that corresponds to the
purchased product version, you can request it from us free of charge by email
([email protected]) in PDF format, specifying the relevant invoice number and
serial number. If you wish, the operating instructions can also be sent to you by
post in paper form against an applicable postage fee.
The devices are only to be used, maintained and serviced by persons familiar with
these operating instructions and in accordance with local regulations applying to
Health & Safety and prevention of accidents.
When used in machines, the measuring unit should be used only when the
machines fulfil the EC-machine guidelines.
3. Instrument Inspection
Instruments are inspected before shipping and sent out in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of the
delivery packaging. In case of damage, please inform your parcel service /
forwarding agent immediately, since they are responsible for damages during
transit.
Scope of delivery:
The standard delivery includes:
 Digital Indicating Unit model: DAG-A34
4. Regulation Use
Any use of the device, which exceeds the manufacturer’s specification, may
invalidate its warranty. Therefore, any resulting damage is not the responsibility of
the manufacturer. The user assumes all risk for such usage.

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5. Short Description
The panel instrument DAG-A34 is a 4-digit device for Pt100 sensors and a visual
limit value monitoring via the display. The configuration happens via three front
keys. An integrated programming interlock prevents unrequested changes of the
parameter and can be unlocked again via an individual code.
The electrical connection happens on the rear side via plug-in terminals.
Selectable functions like e.g. the recall of the min/max-value, an impedance
matching up to 20°C and a direct change of the limit value in operating mode
complete the modern device concept.

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6. Assembly
Please read the Safety advice on page 12 before installation and keep this user
manual for future reference.
1. After removing the fixing elements, insert the device.
2. Check the seal to make sure it fits securely.
3. Click the fixing elements back into place and tighten the clamping
screws by hand. Then use a screwdriver to tighten them another half a
turn.
CAUTION! The torque should not exceed 0.1 Nm!

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7. Electrical Connection
DAG-A340 with supply of 230 VAC DAG-A343 with supply of 24 VDC
DAG-A344 with supply of 115 VAC
DAG-A342 with supply of 24 VAC
Advice:
The galvanic isolation in devices with temperature sensors, that do not have a
galvanic connection to an extrinsic potential, can be cancelled by a bridge from
terminal 3 to 4 and thus stabilise the device against external failures.
Devices with a supply of 230 VAC need to connect terminal 3 to signal ground
230 VA
C
or
115 VAC or
24 VAC

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8. Function, Description and Operation
Operation
The operation is divided into two different levels.
Menu Level
Here it is possible to navigate between the individual menu items.
Parameterization level:
The parameters stored in the menu item can be parameterized here.
Functions that can be adjusted or changed are always indicated with a flashing of
the display. Adjustments made at the parameterization level should be always
confirmed by pressing the [P] key to save them.
However, the display automatically saves all adjustments and then switches to
operation mode if no further keys are pressed within 10 seconds.

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9. Setting up the device
9.1 Switching on
Once the installation is complete, you can start the device by applying the current
loop. Check beforehand once again that all the electrical connections are correct.
Starting sequence
For 1 second during the switching-on process, the segment test (8 8 8 8 8) is
displayed, followed by an indication of the software type and, after that, also for
1 second, the software version. After the start-up sequence, the device switches
to operation/display mode.
9.2 Standard parameterization:
To be able to parameterize the display, press the [P] key in operating mode for 1
second. The display then changes to the menu level with the first menu item TYPE.

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9.3 Programming interlock RUN
9.4 Extended parameterization
By pressing the [▲] & [▼] keys during standard parameterization for one second,
the display switches to the extended parameterization mode. Operation is the same
as in standard parameterization.

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10. Reset to default values
To return the unit to a defined basic state, a reset can be carried out to the default
values. The following procedure should be used:
• Switch off the power supply
• Press button [P]
• Switch on voltage supply and press [P]-button until „- - - -“ is shown in the display.
With reset, the default values of the program table are loaded and used for
subsequent operation. This puts the unit back to the state in which it was supplied.
Caution! All application-related data are lost.

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11. Functional principle of the switching points
Alarms / optical switching point display
An activated set point can be optically indicated by flashing of the 7-segment display.
Functional principle of the alarms
Alarm Deactivated, display value
Threshold Threshold/limit value for switch over
Hysteresis Width of the window between the thresholds
Operating principle Limit value exceedance / limit value undercut

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12. Technical Information
Housing
Dimensions 96x24x60 mm (BxHxD)
96x24x74 mm (BxHxD) including plug-in terminal
Panel cut-out 92.0+0.8 x 22.2+0.3 mm
Insulation thickness up to 3 mm
Fixing snap-in screw element
Material PC Polycarbonate, black, UL94V-0
Sealing material EPDM, 65 Shore, black
Protection class standard IP65 (front), IP00 (back side)
Weight approx. 100 g
Connection plug-in terminal; wire cross section up to 2.5 mm2
Display
Digit height 14 mm
Segment colour red (optional green, orange or blue)
Display range -1999 to 9999
Setpoints optical display flashing
Overflow horizontal bars at the top
Underflow horizontal bars at the bottom
Display time 0.1 to 10.0 seconds
Input Measuring range Measuring fault Digit
Pt100 2-/3-wire -200…850°C 0.1 % of measuring range ±1
Pt100 2-/3-wire -328…1562°F 0.1 % of measuring range ±1
Accuracy
Temperature drift 100 ppm / K
Measuring time 0.1…10.0 seconds
Measuring principle U/F-conversion
Resolution 0.1°C or 0.1°F
Power pack 230 VAC ±10 % max. 6 VA
24 VDC ±10 % max. 1 VA
Memory EEPROM
Data life ≥ 100 years at 25°C

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Ambient conditions
Working temperature 0°C…60°C
Storing temperature -20°C…80°C
Weathering resistance relative humidity 0-80% on years average without dew
EMV EN 61326
CE-sign Conformity to directive 2014/30/EU
Safety standard According to low voltage directive 2014/35/EU
EN 61010; EN 60664-1

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13. Order Codes
Identification
STANDARD TYPES ORDER NUMBER
Pt100 2-/3-wire
Housing size: 96x24 mm
DAG-A340000R
DAG-A343000R
DAG-A34 0 0 0 0 R
Supply
3 = 24 VDC, galvanic separated
2 = 24 VAC
4 = 115 VAC
0 = 230 VAC
Output
0 = without
Sensor supply
0 = without
Contacts
0 = without
Display colour
R = red
B = blue
O = orange
G = green
Options – breakdown of order code:
Please state physical unit by order, e.g. °F.

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14. Safety advice
Please read the following safety advice and the assembly chapter 6 before
installation and keep it for future reference.
Proper use
The DAG-A34 is designed for the evaluation and display of Pt100 signals.
D a n g e r ! Careless use or improper operation can result in
personal injury and/or damage to the equipment.
Control of the device
The panel meters are checked before dispatch and sent out in perfect condition.
Should there be any visible damage, we recommend close examination of the
packaging. Please inform the supplier immediately of any damage.
Installation
The DAG-A34-device must be installed by a suitably qualified specialist (e.g. with
a qualification in industrial electronics).
Notes on installation
• There must be no magnetic or electric fields in the vicinity of the device, e.g. due
to
transformers, mobile phones or electrostatic discharge.
• The fuse rating of the supply voltage should not exceed a value of 6A N.B. fuse.
• Do not install inductive consumers (relays, solenoid valves etc.) near the device
and
suppress any interference with the aid of RC spark extinguishing
combinations or free- wheeling diodes.
• Keep input, output and supply lines separate from each other and do not lay them
parallel with each other. Position “go” and “return lines” next to one another.
Where possible use twisted pair. So, the best measuring results can be received.
• Screen off and twist sensor lines. Do not lay current-carrying lines in the vicinity.
Connect the screening on one side on a suitable potential equaliser (normally
signal ground).
• The device is not suitable for installation in areas where there is a risk of explosion.
• Any electrical connection deviating from the connection diagram can endanger
human life and/or can destroy the equipment.

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• The terminal area of the devices is part of the service. Here electrostatic discharge
needs to be avoided. Attention! High voltages can cause dangerous body currents.
Galvanic insulated potentials within one complex need to be placed on an
appropriate point (normally earth or machines ground). So, a lower disturbance
sensibility against impacted energy can be reached and dangerous potentials,
that can occur on long lines or due to faulty wiring, can be avoided.
15. Error elimination
Error description Measures
1. The unit permanently indicates
overflow.
• The input has a very high measurement,
check the measuring circuit.
• The input is open.
2. The unit permanently shows
underflow.
• The input has a very low measurement, check
the measuring circuit.
• The input is open.
3.
• The unit has found an error in the
configuration memory. Perform a reset on the
default values and re-configure the unit
according to your application.
4. Program numbers for parameterising
of the input are not accessible.
• Programming lock is activated
• Enter correct code
5. • Please contact the manufacturer if errors of
this kind occur.
6. The device does not react as
expected.
• If you are not sure if the device has been
parameterised before, then follow the steps as
written in chapter 10 and set it back to its
delivery status.
7. The temperature value is unstable. • Please check the possibility to set aside the
galvanic insulation for a discharging of failures
as described under chapter 7„Electrical
connection“. Before make sure that the
possible metal sensor is separated from the
sensor element.

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16. Disposal
Note!
 Avoid environmental damage caused by media-contaminated parts
 Dispose of the device and packaging in an environmentally friendly manner
 Comply with applicable national and international disposal regulations and
environmental regulations.
Batteries
Batteries containing pollutants are marked with a sign consisting of a crossed-out
garbage can and the chemical symbol (Cd, Hg, Li or Pb) of the heavy metal that
is decisive for the classification as containing pollutants:
Cd1 Hg2 Pb3 Li4
1. „Cd" stands for cadmium
2. „Hg" stands for mercury
3. „Pb" stands for lead
4. „Li" stands for lithium
Electrical and electronic equipment

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17. EU Declaration of Conformance
We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole
responsibility that the product:
Digital Indicating Unit for Panel Mounting Model: DAG-A34
to which this declaration relates is in conformity with the standards noted below:
EN 61010-1:2010+A1:2019+A1:2019/AC:2019
Safety requirements for electrical equipment for measurement, control and
laboratory use - Part 1: General requirements
EN 61326-1:2013
Electrical equipment for measurement, control and laboratory use - EMC
requirements - Part 1: General requirements
EN IEC 63000:2018 Technical documentation for the assessment of electrical
and electronic products with respect to the restriction of hazardous substances
Also, the following EC guidelines are fulfilled:
2014/30/EU EMC Directive
2014/35/EU Low Voltage Directive
2011/65/EU RoHS (category 9)
2015/863/EU Delegated Directive (RoHS III)
Hofheim, 08 Sept. 2022
H. Volz M. Wenzel
General Manager Proxy Holder