GHM Martens BA 24N2 Series User manual

Members of GHM GROUP:
Bargraph indicator
BA9624 / 7224 / 4824N2
User manual

2GHM GROUP – Martens | User manual | BAxx Bargraph indicator
Contents
1. Assembly 6
2. Electrical connection 8
3. Description of functions and operation 10
4. Setting up the device 12
4.1. Switching on 12
4.2. Parameterisation 12
4.3. Bargraph display during parameterisation 14

3
5. Factory settings 19
6. Technical data 20
7. Safety advices 25
8. Error elimination 28
9. Identification 29

4GHM GROUP – Martens | User manual | BAxx Bargraph indicator
Size (W x H)
48 x 24 mm Size (W x H)
72 x 24 mm
Size (W x H)
96 x 24 mm
Direct voltage/Direct current
0 – 10 VDC, 0/4 – 20 mA
Switchable display colour: standard: red/green,
optional: green/orange or blue/red

5
Technical features
○Bargraph colour red or green, adjustable via code switch
○minimal installation depth due to a pluggable screw terminal
○parameterisation via HEX-switch and pushbutton
○pre-adjusted input (ex factory) for standard signal 0 to 10 V
and 0/4 to 20 mA
○free adjusting on the input signal
○8 different types of notation, adjustable as bars, dot or curtain
○free selection of direction and notation of the middle
(e.g. bars starting from the middle)
○gradually brightness control
○protection class IP65 at the front
○pluggable screw terminal
○optional: colours green/orange, blue/red
User manual
Bargraph indicator
BA9624 / 7224 / 4824N2

6GHM GROUP – Martens | User manual | BAxx Bargraph indicator
1. Assembly
Please read the Safety advices on page 25 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!
The dimension symbols can be exchanged before installation
via a channel on the side!

7

8GHM GROUP – Martens | User manual | BAxx Bargraph indicator
2. Electrical connection
123 4 5
0/4....20 mA
Input
_
+
0...10 V
_
+
Supply
Power Suppl
y
24 VDC
L- L+

9
Connection examples
Below you find some connection examples, which demonstrate
some practical applications:
BAxx24N2 in combination with a
2-wire-sensor and 4-20 mA
BAxx24N2 in combination with a
3-wire-sensor and 0/4-20 mA
BAxx24N2 in combination with a
3-wire-sensor 0-10 V

10 GHM GROUP – Martens | User manual | BAxx Bargraph indicator
3. Description of functions
and operation
Operation
Programming happens via 2 operating elements. A code switch
with 9 positions and a pushbutton on the rear side of the device.
Code switch
Access to the 9 levels of the bargraph display happens via
the code switch.
Pushbutton
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 segments. Adjustments made at the para-
meterization level should always be confirmed by pressing the push-
button to save them.

11
Description of the operating elements
OPERATING ELEMENTS
Menu level
Code switch
Parameterisation level
Pushbutton
Operating mode
To enter the operating mode, the code switch needs always to be
on position 0!

12 GHM GROUP – Martens | User manual | BAxx Bargraph indicator
4. Setting up the device
4.1. Switching on
Once the installation is complete, start the device by applying the supply
voltage. Check beforehand once again that all the electrical connections
are correct.
4.2. Parametrierung
MENULEVEL
Code switch
PARAMETERIZATION LEVEL
Pushbutton
Operating mode Without function
Selection
operating type
Bar function from top to bottom
Bar function from bottom to top
Dot function from bottom to top
Dot function from top to bottom
Bar function from the middle with alignment:
+Signal top/left -Signal bottom/right
Bar function from the middle with alignment:
+Signal bottom/right -Signal top/left
Bar function „curtain“: from the middle, indicating
in both directions
Bar function „curtain“: top (left) and bottom (right)
indicating in both directions

13
MENULEVEL
Code switch
PARAMETERIZATION LEVEL
Pushbutton
Sensor calibration:
Application of the signal
input/final value e.g. 10 V.
The display flashes until the value
has been taken over by keystroke.
Sensor calibration:
Application of the signal
input/final value 0 V.
The display flashes until the value
has been taken over by keystroke.
Factory calibration: Alloca-
tion measuring input 0 – 10 V,
without application of the
sensor signal.
The display flashes until the input
has been allocated by keystroke.
Factory calibration:
Allocation measuring input
0 – 20 mA, without application
of the sensor signal.
The display flashes until the input
has been allocated by keystroke.
Factory calibration:
Allocation measuring input
4 – 20 mA, without application
of the sensor signal.
The display flashes until the input
has been allocated by keystroke.
Display position
Final value
By keystroke you can limit the
final value at any position of the
display e.g. on 50 instead of 100 on
the scale.
Display position
Initial value
By keystroke you can limit the initial
value at any position of the display
e.g. on 50 instead of 0 on the scale.
Brightness adjustment /
Choice of colour
The colour (red/green) and the
brightness can be changed in
9 steps by keystroke.

14 GHM GROUP – Martens | User manual | BAxx Bargraph indicator
4.3. Bargraph display during parameterisation
BA9624N2
OPERATION MODE ILLUSTRATION OF OPERATION MODE
CODE SWITCH 1234567 8910 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
1Bar function from top/left to bottom/right
1Bar function from bottom/right to top/left
1Dot operation from top/left to bottom/right
1Dot operation from the bottom up
1Bar function from the middle with +signal to bottom/right
1Bar function from the middle with +signal to top/left
1Bar function “curtain” from the middle in both directions
1Bar function “curtain” top/left and bottom/right
in both directions
2Sensor calibration final value
3Sensor calibration Offset
4Factory calibration 0-10 V
5Factory calibration 0-20 mA
6Factory calibration 4-20 mA
7Display position final value
8Display position Offset
9Brightness regulation, bargraph colour

15
OPERATION MODE ILLUSTRATION OF OPERATION MODE
CODE SWITCH 1234567 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
1Bar function from top/left to bottom/right
1Bar function from bottom/right to top/left
1Dot operation from top/left to bottom/right
1Dot operation from the bottom up
1Bar function from the middle with +signal to bottom/right
1Bar function from the middle with +signal to top/left
1Bar function “curtain” from the middle in both directions
1Bar function “curtain” top/left and bottom/right
in both directions
2Sensor calibration final value
3Sensor calibration Offset
4Factory calibration 0-10 V
5Factory calibration 0-20 mA
6Factory calibration 4-20 mA
7Display position final value
8Display position Offset
9Brightness regulation, bargraph colour

16 GHM GROUP – Martens | User manual | BAxx Bargraph indicator
OPERATION MODE ILLUSTRATION OF OPERATION MODE
CODE SWITCH 12345 678910 11 12 13 14 15 16 17 18 19 20
1Bar function from top/left to bottom/right
1Bar function from bottom/right to top/left
1Dot operation from top/left to bottom/right
1Dot operation from the bottom up
1Bar function from the middle with +signal to bottom/right
1Bar function from the middle with +signal to top/left
1Bar function “curtain” from the middle in both directions
1Bar function “curtain” top/left and bottom/right
in both directions
2Sensor calibration final value
3Sensor calibration Offset
4Factory calibration 0-10 V
5Factory calibration 0-20 mA
6Factory calibration 4-20 mA
7Display position final value
8Display position Offset
9Brightness regulation, bargraph colour
BA7224N2
4.3. Bargraph display during parameterisation

17
OPERATION MODE ILLUSTRATION OF OPERATION MODE
CODE SWITCH 12345 678910 11 12 13 14 15 16 17 18 19 20
1Bar function from top/left to bottom/right
1Bar function from bottom/right to top/left
1Dot operation from top/left to bottom/right
1Dot operation from the bottom up
1Bar function from the middle with +signal to bottom/right
1Bar function from the middle with +signal to top/left
1Bar function “curtain” from the middle in both directions
1Bar function “curtain” top/left and bottom/right
in both directions
2Sensor calibration final value
3Sensor calibration Offset
4Factory calibration 0-10 V
5Factory calibration 0-20 mA
6Factory calibration 4-20 mA
7Display position final value
8Display position Offset
9Brightness regulation, bargraph colour

18 GHM GROUP – Martens | User manual | BAxx Bargraph indicator
OPERATION MODE ILLUST. OF OPERATION MODE
CODE SWITCH 12345678910
1Bar function from top/left to bottom/right
1Bar function from bottom/right to top/left
1Dot operation from top/left to bottom/right
1Dot operation from the bottom up
1Bar function from the middle
with +signal to bottom/right
1Bar function from the middle
with +signal to top/left
1Bar function “curtain” from the middle
in both directions
1Bar function “curtain” top/left and bottom/right
in both directions
2Sensor calibration final value
3Sensor calibration Offset
4Factory calibration 0-10 V
5Factory calibration 0-20 mA
6Factory calibration 4-20 mA
7Display position final value
8Display position Offset
9Brightness regulation, bargraph colour
BA4824N2
4.3. Bargraph display during parameterisation

19
5. Factory settings
CODE SWITCH
Position 1 Bar operation from the bottom up
Position 2 –
Position 3 –
Position 4 Measuring input 0 – 10 V
Position 5 –
Position 6 –
Position 7 100%
Position 8 0%
Position 9 Brightness, bargraph colour red, level 10

20 GHM GROUP – Martens | User manual | BAxx Bargraph indicator
6. Technical data
HOUSING
Dimensions
96 x 24 96 x 24 x 60 mm (W x H x D)
96 x 24 x 75 mm (W x H x D) including plug-in terminal
72 x 24 72 x 24 x 32 mm (W x H x D)
72 x 24 x 60 mm (W x H x D) including plug-in terminal
48 x 24 48 x 24 x 30 mm (W x H x D)
48 x 24 x 55 mm (W x H x D) including plug-in terminal
Panel cut-out
96 x 24 92.0+0.8 x 22.2+0.3 mm
72 x 24 68.0+0.7 x 22.2+0.3 mm
48 x 24 45.0+0.8 x 22.2+0.6 mm
Wall thickness up to 3 mm
Fixing screw elements
Material PC Polycarbonate, black
Sealing material EPDM, 65 Shore, black
Protection class standard IP65 (front), IP00 (rear side)
Weight approx. 100 g
Connection plug-in terminal; wire cross section up to 2.5 mm2
Display
Bargraph segments 2x4 mm (WxB)
Segment colour red/green selectable, optionally green/orange, blue/red
Display range 30/20/10 points bargraph display
Overflow all segments are flashing, except the last 3