Page 1
BD SENSORS GmbH
BD-Sensors-Straße 1 Telefon +49 (0) 92 35 / 98 11- 0 www.bdsensors.de
D - 95199 Thierstein Telefax +49 (0) 92 35 / 98 11- 11 info@bdsensors.de
Operating Manual
Display and Switching Unit ASM 400
Important notes:
Please read this operating manual carefully before installing and starting
up the device.
This operating manual must be kept at an accessible location for further
use.
This operating manual discribes the installation and operation of ASM 400.
Further information about BD SENSORS pressure transmitters are given in
the product-specific operating manuals.
The device may only be installed, used and serviced by persons who are
familiar with this operating manual as well as with the applicable regulations
on occupational safety and accident prevention.
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ASM 400
Table of contents
1. General .................................................................................................................................... 3
1.1 Information on the intended use ......................................................................................... 3
1.2 Target group ...................................................................................................................... 3
1.3 Symbols used ..................................................................................................................... 3
1.4 Safety information ............................................................................................................. 3
1.5 Package contents .............................................................................................................. 4
2. Product identification .............................................................................................................. 4
3. Installation ................................................................................................................................ 4
3.1 General notes .................................................................................................................... 4
3.2 Necessary utilities ............................................................................................................. 4
3.3 Installation steps ................................................................................................................. 5
3.4 Electrical installation ........................................................................................................... 6
3.5 Supply 2-wire-system ......................................................................................................... 6
3.6 Supply 3-wire-system ......................................................................................................... 7
3.7 Wiring diagrams.................................................................................................................. 7
3.8 Test of signal and displayed value...................................................................................... 8
3.9 Final inspection of the device ............................................................................................. 8
4. Operation ................................................................................................................................ 8
4.1 Operating and display elements ......................................................................................... 8
4.2 Menu operation .................................................................................................................. 9
4.3 Password system ............................................................................................................... 9
4.4 Unit ..................................................................................................................................... 9
4.5 Structure of the menu system ........................................................................................... 10
4.6 Menu list ........................................................................................................................... 11
4.7 Special menus .................................................................................................................. 14
5. Placing out of service ............................................................................................................. 15
6. Service .................................................................................................................................. 15
7. Repair .................................................................................................................................... 15
8. Disposal................................................................................................................................. 15
9. Warranty conditions .............................................................................................................. 16
10. CE-Note ............................................................................................................................... 16
11. Ex-Note ................................................................................................................................ 16
12. Technical Data ..................................................................................................................... 17
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ASM 400
1. General
1.1 Information on the intended use
• The display and switching unit ASM 400 can be integrated in any transmitter or trans-
ducer with 4 … 20 mA / 2-wire or 0 … 10 V / 3-wire analogue output. With the ASM 400
a digital display and up to 2 contacts are available.
• Mounting the unit into different devices is very simple. A hole and up to 2 grooves have
to be machined in a designated housing.
• The display can be programmed via two push-buttons. The following parameters can be
adjusted: scaling, decimal point, damping, and limit contact (optional). Those parameters
are being stored in an EEPROM and, thus, kept also in case of a power breakdown.
• The device shall be used according to the area of application specified above!
• No liability is assumed and warranty claims are excluded in case of improper application,
modification of or damage to the device.
1.2 Target group
This operating manual is intended for qualified technical personnel.
The display and switching unit ASM 400 has been exclusively designed for qualified companies
that have a large know how in the final assembly of fine mechanical and electrical devices as
well as bonding, joining and soldering technologies.
1.3 Symbols used
: Caution : Note
1.4 Safety information
The following notes must be observed to avoid hazards for the operator and his environment:
The device may only be installed, used and serviced by persons who are familiar with
this operating manual!
Applicable regulations regarding occupational safety, accident prevention and national
installation standards must be complied with!
The product must only be used within the specifications! (Compare the technical
data under "12. Technical Data".)
The electronical assembly group in the ASM 400 is equipped with EMC compo nents. The manufacturer of the total appliance must ensure CE conformity.
Mount the device in the currentless condition!
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ASM 400
1.5 Package contents
Please verify that all listed parts are included in the delivery:
• Display and Switching Unit ASM 400
• O-ring 24x1.6 NBR
• Retaining ring (Seegerring AV20)
• Sheet of labels
• Operating Manual "ASM 400"
2. Product identification
The device can be identified by its type plate. It provides the most important data. By the
ordering code the product can be clearly identified.
Fig. 1 Type plate
For identification of the firmware, the program version (e. g. P07) will appear for about 1 second
in the display after starting up the device. Please hold it ready for inquiry calls.
3. Installation
3.1 General notes
• Please note that this device is a precision electronic instrument. Handle the device carefully to avoid damages to the plastic surface and housing parts.
• The display and the plastic housing are equipped with a rotational limiter. Please do only
rotate the display or the housing within the limit.
• The ingress protection by factory is IP 00 (front side: IP 65). The ingress protection of the
total appliance depends on the housing mounted by the customer.
3.2 Necessary utilities
• O-ring 24x1.6 NBR - is included in the scope of delivery -
• retaining ring (Seegerring AV20) - is included in the scope of delivery -
• grease for seals of NBR
• soldering iron, soldering grease and tin-solder (if the electrical connection should be made
by soldering)
• crimping tool and a compatible plug connection (if the electrical connection should be
pluggable)
• seeger circlip pliers
• devices for simulation of the measuring range (e. g. pressure calibrator) and for measuring
the output signal (digital multimeter)
• device for checking the contact functions
Ordering code
Type
designation
S
erial number
Pin configuration
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ASM 400
3.3 Installation steps
• For the ASM 400, a hole and two grooves have to be machined into the designated
housing (see fig. 2).
The groove of Ø 38 must be established in such a way that a web will remain top left
(rotational limiter). It serves as a protection against over-winding, and the ASM 400
will be rotatable in the range between -35° and +215°.
• Guide the O-ring 24 x 1.6 (position 2) over the cords emerging from the ASM 400
(position 1) and place it into the designated groove Ø 27 of the housing (position 3).
• Then you should slightly grease the O-ring with a lubricant for NBR seals.
• Put the ASM 400 onto the housing’s side so that the rotational limiter of the circuit board
carrier will be placed in the external groove (Ø 38).
• Secure the ASM 400 with the spring retainer on the side in such a way that both parts are
firmly connected.
• Check whether the ASM 400 may be turned on the housing cover.
• Establish the electrical contact according to the description below.
• Check the output signal of the transmitter and compare it with the indicated value.
Fig. 2 ASM 400
1 Display and Switching Unit ASM 400
2 O-ring 24x1.6 NBR
3 Panel with hole and grooves
4 Seegerring AV20
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ASM 400
3.4 Electrical installation
The following table describes how to install the ASM 400 on the transmitter. The connection has
to be made by soldering or pluggable.
2-wire-system
Electrical
Connection
cord
colours
comment
Supply + white This cord must be connected with supply + of the power supply unit.
Supply - brown This cord must be connected with supply + of the transmitter.
Contact 1 green This cord of contact 1 must be connected with the respective load
resistor RL.
Contact 2 yellow This cord of contact 2 must be connected with the respective load
resistor RL.
In addition, a contact between supply - of the transmitter and supply - of the power supply unit
must be established (see 3.7 Wiring diagrams - 2-wire-system).
3-wire-system
Electrical
connection
cord
colours
comment
Supply + white This cord must be connected with supply + of the power supply
unit.
Supply -
brown 1
This cord must be connected with supply - of the power supply
unit.
Contact 1 green This cord of contact 1 must be connected with the respective load
resistor RL.
Contact 2 yellow This cord of contact 2 must be connected with the respective load
resistor RL.
Signal + red This line must be connected with the positive power supply (only
for 3-wire-circuit 0 ... 10 V).
Signal -
brown 1
This cord must be connected with signal + of the transmitter.
Normally, it is the same as supply - of the transmitter
(only for 3-wire-circuit 0 ... 10 V).
In addition, a contact between the transmitter and supply + of the power supply unit must be
established.
3.5 Supply 2-wire-system
The supply created by the electronics of the ASM 400 is approx. 6 VDC. Please take this into
consideration when planning your power supply. The limits for the power supply can be calculated as follows:
minimum supply:
VVV
MUS
6
minmin
+=
maximum supply:
VVV
MUS
6
maxmax
+=
V
MU min
= Minimum supply of the used transmitter
V
MU max
= Maximum supply of the used transmitter
1
On the device, two brown cords have been installed. These are connected galvanically, so that you can freely
choose the cord for installation.
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ASM 400
With Ex-protection the max. supply for a combination of transmitter and ASM 400 is 28 VDC.
Insure that no external power can flow into the contacts.
3.6 Supply 3-wire-system
minimum supply:
The minimum supply of the ASM 400 (V
S min
) is 8 V. The connected transmitter is supplied by the
ASM 400, so the minimum supply of the transmitter must be used for the total appliance if it is
higher than 8 V. The following formulas are valid:
if
VV
MU8min
≥
:
minmin MUS
VV =
if
VV
MU8min
<
:
VV
S8min
=
V
MU min
= Minimum supply of the used 3-wire transmitter
maximum supply:
The maximum supply of the ASM 400 (V
S max
) is 36 V. As the connected transmitter is also sup-
plied by the ASM 400, the maximum supply does not only depend on the supply of the ASM
400. If the maximum supply of the transmitter is lower than 36 V, the maximum supply of the
total appliance may not exceed the transmitter’s value. The following formulas are valid:
if
VV
MU36max
≥
:
VV
S36max
=
if
VV
MU36max
<
:
maxmax MUS
VV
=
V
MU max
= Maximum supply of the used 3-wire transmitter
3.7 Wiring diagrams
For the usage with BD SENSORS pressure transmitters, the following wiring diagrams are
given: For electrical connection a sheathed and twisted multicore cable is recommended.
2-wire-system (current)
3-wire-system (voltage)
Supply +
Transmitter
Supply -
+V
S
−
V
S
V
S
ASM 400
Contact 1
R
L
Contact 2
R
L
+VS
Supply +
Transmitter
Supply
−
−
V
S
ASM 400
U
Signal
out
U
Signal
in
U
Signal
V
S
Contact 1
Contact 2
R
L
R
L
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ASM 400
3.8 Testing the signal and the displayed value
After assembling the transmitter, you should in any case perform a test of the displayed value
and the switching functions. Therefore, the device must be connected according to the specifications. In the next step, you should carry out the settings at the zero point (menu 3) and end
point (menu 4), as well as the decimal point (menu 2). The displayed value of the ASM 400
should correspond to the respective measuring value of the transmitter.
3.9 Final inspection of the device
For final inspection, it is essential to test the displayed value as well as the switching function
again. The switching function may be externally tested by a variety of procedures. The use of
two external LEDs, which are triggered through protective resistors, is the simplest and most
suitable way.
4. Operation
4.1 Operating and display elements
Fig. 3 Touchpad
The device has a green LED for displaying the active contact of set point 1 and a yellow LED for
displaying the active contact of set point 2. The LEDs will light up when the respective set point
has been reached and the contact is active.
The display of the measured value as well as the configuration of the individual parameters
occur through a menu via a 4-digit seven-segment display. The individual functions can be set
with the help of two miniature push buttons located in the front.
• "▲" button: with this button you move forward in the menu system or increase the
displayed value
• "▼" button: with this button you move backward in the menu system or decrease
the displayed value
• both buttons simultaneously:if both buttons are pushed simultaneously, the device changes
between display and configuration mode; you can also confirm
the menu items and set values
When setting the values, you can increase the counting speed by pushing the respective
button ("
▲" or "▼") for more than 5 seconds.
LED
contact 1
LED
contact 2
4-digit sevensegment display
"▲" - button
"▼" - button
Unit
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ASM 400
4.2 Menu operation
The menu system is a closed system allowing you to scroll both forward and backward through
the individual set-up menus to navigate to the desired setting item. All settings are permanently
stored in an EEPROM and therefore available again even after disconnecting from the supply
voltage. The menu system and the menu items have been designed as simply as possible. Below, each individual menu item is described in detail allowing a straightforward and quick configuration of your device. The structure of the menu system is identical for devices with or without
contacts. The device with contacts deviates from the one without contacts by ten or five additional menus. These additional menus are marked by a gray background for clear identification.
Please follow the manual meticulously and remember that changes of the adjustable
parameters (switch-on point, switch-off point, etc.) become only effective after pushing
both buttons simultaneously and leaving the menu item.
4.3 Password system
The device is equipped with an access protection to allow access to the complete menu system
only to authorized persons.
• Activating the access protection with the password will lock the complete menu.
• Deactivating the access protection with the password will unlock the complete menu.
The password can be activated and deactivated through menu "PAon" resp. "PAof".
It can be changed according to special menu 4.
In case the password has been lost, there is a possibility to reset the password.
You can do this by loading the defaults via the special menu 3.
4.4 Unit
The unit of the values to be measured is determined on ordering. But it is also possible to
change the unit later by using one of the enclosed unit labels.
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ASM 400
4.5 Structure of the menu system
Fig. 4 Menu system Rev. P07
The grey marked menus are only available at devices with one or two contacts.
Display mode
(measured value
is displayed)
Access protection/
entry to special
menus
Menu 1:
PAon / PAof
Special menu 1:
Full scale set
FS S
Code-Nr.: 0238
Measured value
update (display)
Menu 19: dLdS
Switch-off point S2
Menu 10: S2of
Minimum value
Menu 18: LoPr
Zero point
Menu 3: ZP
Hysteresis- and
compare mode
Menu 11:
HY 1 / CP 1
End point
Menu 4: EP
Damping
Menu 5: FILt
Exceeding
message
Menu 6: HILo
Switch-on point S1
Menu 7: S1on
Switch-off point S1
Menu 8: S1of
Switch-on point S2
Menu 9: S2on
Switch-on delay S1
Menu 13: d1on
Switch-off delay S1
Menu 14: d1off
Switch-on delay S2
Menu 15: d2on
Switch-off delay S2
Menu 16: d2off
Maximum value
Menu 17: HIPr
PA of Password
inactive
Decimal position
Menu 2: dP
PA on Password active
Special menu 2:
Offset set
oF S
Code-Nr.: 0247
Special menu 3:
Defaults
LoAd
Code-Nr.:0729
Hysteresis- and
compare mode
Menu 12:
HY 2 / CP 2
Special menu 4:
Password
SEtP
Code-Nr.: 0835
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ASM 400
4.6 Menu list
Menu 1 – Access protection
If the
password is active
, the menu
"
PAon
"
will appear. Before
being able to perform settings in the menu system, you must first
enter the password. Proceed as follows for deactivation: Press
both buttons simultaneously to confirm the menu item "PAon".
Then set a password using the "▲" or "▼" buttons and confirm it
by pushing both buttons together. The menu system is now unlocked and "PAof" will appear in the display. You can now proceed as desired.
If the password is inactive, the menu "PAof" will appear. To
activate the access protection, press both buttons simultaneously.
Then set your password using the "▲" or "▼" buttons to activate
the access protection. Confirm the password with both buttons.
The menu system is now locked and "PAon" will appear in the
display.
The default setting for the password is "0005".
A modification of the password is described in the special
menu 4.
Menu 2 - Setting the decimal point position
After confirming "dP" by pushing both buttons, the position of the
decimal point can be selected. Set the desired position by using
the "▲" or "▼" button. To complete the setting, push both buttons
simultaneously.
Menu 3 - Setting the zero point
After confirming "ZP" by pushing both buttons, the zero point can
be set. The value set is shown when the output signal
of the
transmitter is 4 mA (zero point). To complete the setting, push
both buttons simultaneously.
Menu 4 - Setting the end point
After confirming "EP" by pushing both buttons, the end point can
be set. The value programmed will be shown when the electrical
output signal of the transmitter is 20 mA (End point). To complete
the setting, push both buttons simultaneously.
Menu 5 – Setting the damping
After confirming "FILt" by pushing both buttons, the time constant
for a simulated low-pass filter can be set. This function allows getting a constant display value although the measuring values may
vary considerably. The permissible range reaches from 0.3 till 30
seconds. To complete the setting, push both buttons simultaneously.
Menu 6 – Activation of the exceeding message
After confirming "HILo" by pushing both buttons, the alarm for exceeding the range of the display can be activated. Conditions "on"
or "off" can be selected. To complete the setting, push both buttons simultaneously.
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ASM 400
Menu 7 - Setting the switch-on point for contact 1
After confirming "S1on" by pushing both buttons, the value to activate contact 1 can be set. To complete the setting, push both buttons simultaneously.
Please take further information from the figures in menu 11.
Menu 8 - Setting the switch-off point for contact 1
After confirming "S1of" by pushing both buttons, the value to
deactivate contact 1 can be set. To complete the setting, push
both buttons simultaneously.
Please take further information from the figures in menu 11.
Menu 9 - Setting the switch-on point for contact 2
After confirming "S2on" by pushing both buttons, the value to activate contact 2 can be set. To complete the setting, push both buttons simultaneously.
Please take further information from the figures in menu 11.
Menu 10 - Setting the switch-off point for contact 2
After confirming "S2of" by pushing both buttons, the value to
deactivate contact 2 can be set. To complete the setting, push
both buttons simultaneously.
Please take further information from the figures in menu 11.
Menu 11 – Hysteresis and compare mode of set point 1
After confirming "HY 1" resp. "CP 1" by pushing both buttons, you
can choose between hysteresis and compare mode for contact 1.
To complete the setting, push both buttons simultaneously.
The following figures show the difference between
hysteresis and compare mode as well as their inversion. To
invert the respective modes, you must exchange the values
for switch-on point and switch-off point.
Fig. 5 compare mode Fig. 6 compare mode inverted
active
inactive
active
inactive
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ASM 400
Fig. 7 Hysteresis mode Fig. 8 Hysteresis mode
inverted
Menu 12 – Hysteresis and compare mode of set point 2
After confirming "HY 2 " resp. "CP 2" by pushing both buttons, you
can choose between hysteresis and compare mode for contact 2.
To complete the setting, push both buttons simultaneously.
Please take further information from the figures in menu 11.
Menu 13 – Setting the switch-on delay for set point 1
After confirming "d1on" by pushing both buttons, the switch-on
delay after reaching contact 1 can be set. The time can be set
from 0 to 100 seconds. To complete the setting, push both buttons
simultaneously.
Menu 14 – Setting the switch-off delay for set point 1
After confirming "d1of" by pushing both buttons, the switch-off
delay after reaching contact 1 can be set. The time can be set
from 0 to 100 seconds. To complete the setting, push both buttons
simultaneously.
Menu 15 – Setting the switch-on delay for set point 2
After confirming "d2on" by pushing both buttons, the switch-on
delay after reaching contact 2 can be set. The time can be set
from 0 to 100 seconds. To complete the setting, push both buttons
simultaneously.
Menu 16 – Setting the switch-off delay for set point 2
After confirming "d2of" by pushing both buttons, the switch-off delay after reaching contact 2 can be set. The time can be set from 0
to 100 seconds. To complete the setting, push both buttons simultaneously.
active
inactive
active
inactive
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ASM 400
Menu 17 – Maximum value display
After confirming "HIPr" by pushing both buttons, the maximum
signal value during the measuring process will be shown. If both
buttons are activated again within one second, the stored value
will be erased. Please note that the value will not remain stored if
the power supply is interrupted.
Menu 18 – Minimum value display
After confirming "LoPr" by pushing both buttons, the minimum
signal value during the measurement process will be shown in the
display. If both buttons are activated again within one second, the
stored value will be erased. Please note that the value will not
remain stored if the power supply is interrupted..
Menu 19 – Measured value update (Display)
After confirming "dLdS" by pushing both buttons, the measured
value update in the display as well as the cycle for updating the
display can be set. The permissible range is between 0.0 and 10
seconds. To complete the setting, push both buttons simultaneously.
4.7 Special menus
To access the special menus, you must be in menu 1 "PAof".
Select the menu item "PAof" with the "▲" or "▼" button and confirm by pushing both buttons
simultaneously. "1" will appear in the display. To navigate to the special menus, proceed as
described below.
Specia menu 1 – Correction of the display on deviation of full scale
For correction of the display on deviation of the full scale, select
"0238" by using the "▲" and "▼" buttons. Confirm by pushing
both buttons simultaneously. "FS S" will appear in the display.
Now it is necessary to place the transmitter under pressure using
a known pressure reference. This pressure must correspond to
the end point of the pressure measuring range. If you then activate both buttons, the signal being emitted from the transmitter
will be stored as offset. The display will show the end point, although the sensor signal in the offset is displaced.
Please note that the output signal is not affected by this
change.
Special menu 2 – Resetting the display on deviation of offset
For resetting the display on deviation of the offset, set the number
"0247" using the "▲" and "▼" buttons. Confirm by pushing both
buttons simultaneously. "of S" will appear in the display. If the offset differs from the ambient pressure, it is necessary to place the
device under pressure. This pressure must correspond to the zero
point of the pressure measuring range. If you then confirm with
both buttons, the signal being emitted from the transmitter will be
stored as offset. The display will then show the zero point,
although the sensor signal in the offset is displaced.
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ASM 400
Please note that the output signal is not affected by this
change. When displacing the offset, the full scale will also
be displaced.
Special menu 3 – Load Defaults
To load the defaults, set the number "0729". Confirm by pushing
both buttons simultaneously. "LoAd" will appear in the display.
Pressing the two buttons again will load the defaults.
Please note that also the password will be set on its default.
Special menu 4 – Set new password
To change the password, set the number "0835" using the "▲"
and "▼" buttons. When confirmed with both buttons, "SEtP" will
appear in the display. Push both buttons again and set the password using the "▲" or "▼" button. It can be freely chosen
(0 … 9999). However, it must not be identical with the code numbers of the special functions (i. e. numbers 0238, 0247, 0729 and
0835). Finally confirm the password by pressing both buttons. The
new password is now set. To activate the password, proceed as
described in menu PAon.
5. Placing out of service
When dismantling the device, it must always be done in the depressurized and
currentless condition!
6. Service
This device is maintenance-free.
If desired, the device can be cleaned using non-aggressive cleaning solutions.
7. Repair
If there are malfunctions which cannot be eliminated the device should be sent to us for repair. Before that the device has to be cleaned carefully and packed shatter-proofed. You
have to enclose a notice of return with detailed defect description when sending the device.
If your device came in contact with harmful substances, a declaration of decontamination is
additionally required. Appropriate declaration can be downloaded from our homepage
www.bdsensors.com. Should you dispatch a device without a declaration of decontamination and if there are any doubts in our service department regarding the used medium, repair
will not be started until an acceptable declaration is sent.
If the device came in contact with hazardous substances, certain precautions
have to be complied with for purification!
Our service address:
BD SENSORS GmbH, Serviceabteilung, BD-Sensors-Str. 1, 95199 Thierstein, Germany
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ASM 400
8. Disposal
The device must be disposed according to the European Directives 2002/96/EC
and 2003/108/EC (on waste electrical and electronic equipment).
electronic waste
equipment may not be disposed by domestic refuse.
Special consideration is required for the disposal if the device has
been in contact with hazardous substances!
9. Warranty conditions
The warranty conditions are subject
delivery. In case of
improper use, modifications
warranty claims.
Furthermore, defects due to normal wear are not subject to warranty services
10. CE-Note
The electronical assembly group in ASM 400 is equipped with EMC components. The manufa
turer of the total appliance must ensure CE conformity.
11. Ex-Note
From
the intrinsically safe version of the ASM 400
manufacturer of the total appliance must ensure that all relevant safety precautions and tests
intrinsic safety have been
performed during production. The responsibility for all documentation
and operating instructions rests with the manufacturer of th
It is the responsibility of the user to verify whether the chosen version of the device is suit
ble for the intended application and the existing environmental conditions. BD SENSORS
does not assume any liability for an incorrect selection and
The technical data listed in the EC type
absolutely complied with.
E
lectrical and
to the legal warranty period of 24 months from the date of
of
or damages to the device,
,
the type plate must not be removed. The
e total appliance.
the
consequences!
-
examination certificate are engaging and must be
we do not accept
.
c-
for
a-
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ASM 400
12. Technical Data
output signal
2-wire
-
system:
4 … 20 mA
3-wire-system: 0 … 10 V
contact
Number, type
0, 1, or 2 independent PNP outputs
Switching
performance
standard: contact rating max. 125 mA, short-circuit resistant
Ex-protection: max. switching current 2: 70 mA;
max. permissible inductivity per contact: 4.7 mH
Repeatability:
≤ ±
0.1 % FSO
Switching frequency: max. 10 Hz
Switching cycles:
> 100 x 10
6
Delay time: 0 ... 100 s
Electrical protection
Short-circuit protection permanent
Reverse polarity
protection:
no damage, but also no function
Option Ex protection
AX11-ASM 400:
zone (0) 1: II (1) 2 G EEx ia IIC T4 (only with 4 ... 20 mA / 2-wire)
safety technical maximum values: Vi = 28 V, ΣIi = 93 mA, ΣPi = 660 mW
Display
Type
4-
digit, red LED display, digit height 7 mm, digit width 4.85 mm
Range: -1999 ... +9999
Accuracy:
0.1 % ± 1 digit
Digital damping: 0.3 … 30 sec (programmable)
Update value: 0.0 … 10 sec (programmable)
Mechanical stability
Vibration:
5 g RMS (20 ... 2000 Hz)
Shock: 100 g / 11 ms
Permissible temperatures
Electronics /
environment:
-25 ... 85 °C
Storage: -40 ... 85 °C
Materials
Display housing PA 6.6, polycarbonate
Miscellaneous
Cords length 150 mm
Weight approx. 35 g
Data memory: non-volatile EEPROM
ingress protection
IP 00 (front side: IP 65)
The ingress protection of the manufactured device depends on the
housing, mounted by the customer.
2
the real switching current in the application depends on the power supply unit
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ASM 400
Dimensions
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ASM 400
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ASM 400
BD SENSORS GmbH
BD-Sensors-Str. 1
95199 Thierstein
Germany
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The contents of this operating manual reflect the version available at the time of printing. It
has been issued to our best knowledge and belief. However, errors may still be included. For
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– Technical modifications reserved –
ASM400_E_010107
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