Schmidt MD 10.010 User manual

SCHMIDT®LED Measured Value Display
MD 10.010
Instructions for Use

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 2
SCHMIDT®LED Measured Value Display
MD 10.010
Table of Contents
1Important information.......................................................................3
2Application range.............................................................................4
3Mounting instructions.......................................................................4
4Electrical connection........................................................................6
5Signalizations ..................................................................................8
6Startup.............................................................................................9
7Configuration menu.......................................................................15
8Service information........................................................................19
9Technical data ...............................................................................20
10 Declarations of conformity.............................................................21
Imprint:
Copyright 2021 SCHMIDT Technology GmbH
All rights reserved
Version: 531010.02D
Subject to modifications

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 3
1 Important information
These instructions for use contain all required information for a fast com-
missioning and a safe operation of SCHMIDT®LED measured value dis-
plays:
These instructions for use must be read completely and observed care-
fully, before putting the unit into operation.
Any claims under the manufacturer's liability for damage resulting from
non-observance or non-compliance with these instructions will become
void.
Tampering with the device in any way whatsoever - with the exception
of the designated use and the operations described in these instruc-
tions for use - will forfeit any warranty and exclude any liability.
The unit is designed exclusively for the use described below (refer to
chapter 2). In particular, it is not designed for direct or indirect protec-
tion of personal or machinery.
SCHMIDT Technology cannot give any warranty as to its suitability for
certain purpose and cannot be held liable for errors contained in these
instructions for use or for accidental or sequential damage in connec-
tion with the delivery, performance or use of this unit.
Symbols used in this manual
The symbols used in this manual are explained in the following section.
Danger warnings and safety instructions. Read carefully!
Non-observance of these instructions may lead to injury of per-
sonal or malfunction of the device.
High voltage hazard –risk of life.
ESD susceptible elements (electrostatic discharge).
General note
All dimensions are indicated in mm.
!

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 4
2 Application range
The SCHMIDT®LED Measured Value Display MD 10.010 (article no.:
527320 and 528240) is used to display measured values which are trans-
mitted by a sensor via an analog signal (current or voltage). The supply
voltage of the sensor can be obtained from the LED display. Switching
points for two alarm outputs can also be derived from the input signal. The
galvanically isolated analog output allows the scalable output of the dis-
play values.
The SCHMIDT® LED Measured Value Display MD 10.010 can be used
for SCHMIDT® flow sensors as well as for other sensors (e.g. pressure,
temperature, humidity) which are equipped with standard analog outputs.
The SCHMIDT® LED Measured Value Display MD 10.010 is designed
for the use inside closed rooms and is not suitable for outdoor use (risk of
condensation on electronic parts). Moreover, the use in safety relevant
applications are not allowed.
3 Mounting instructions
Dimensions
Figure 1: Dimensions of housing
134
106
100
90
100
90
60
27 30
6,3 4,9
max. 120

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 5
Mounting
Typically, the MD 10.010 is fixed to a wall by means of four screws (pattern
of drilling see Figure 1).
Alternatively, SCHMIDT Technology offers a mounting kit that enables
an easy installation of the device at pipes using hose clamps (article no.
531394).
Generally, please make sure that there is enough space to raise the upper
part of the opened housing in order to establish the electrical connection.
Lateral compression fittings
After installation of the measured value display, the compression fittings
included in the delivery can be mounted instead of the dummy plugs, if
required.
Opening of housing
To establish electrical connection, the housing must be opened.
For this, loose the four (undetachable) screws of the housing completely.
Afterwards, the screws should be pulled out as far as possible and fixed
in the cover with another left-hand turn so that they cannot slip back and
thus block the opening of the cover.
Inside the open housing, some components that are susceptible to ESD
are not protected against unintentional contact. Though the terminals are
resistant to ESD, the other touchable parts of the electronic system (e.g.
cover board with configuration jumper, see Figure 3) are susceptible.
Take respective protective measures to avoid damages due to
electrostatic discharge (ESD).
During electrical installation, ensure that no operating voltage is
applied and its inadvertent activation is not possible.
!

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 6
4 Electrical connection
The model 527320 uses mains voltage (115 / 230 VAC).
If used improperly danger of life!
During electrical installation ensure that no voltage is applied and
inadvertent activation is not possible.
Trained and qualified personnel must carry out the electrical in-
stallation.
Figure 2: Terminals
Terminal
Designation
Function
1 - 3
Relay 1
Alarm output 1 (max. 250 VAC / 5 A)
4
Sensor 1: In-
Analog input 1: Sensor signal GND1
5
Sensor 1: In+
Analog input 1: Sensor signal (set jumper for con-
figuration of signal modus)
6
Sensor 1: 24V -
Supply voltage of sensor: GND
7
Sensor 1: 24V+
Supply voltage of sensor: +24 VDC
12
Analog Out -
AGND (galvanically isolated from GND)
13
Analog Out+
Analog output (galvanically isolated from supply)
14 - 15
Supply Voltage
Version DC: (14) +24V, (15) GND
Version AC: (14) ~, (15) ~
16 - 18
Relay 2
Alarm output 2 (max. 250 VAC / 5 A)
Table 1: Pin assignment
The screwless spring terminals are designed for the reception of bare
braids (no tinned ends or ferrules) of up to 1.5 mm2cross section.
1
The potential "GND" is internally electrically coupled (but not "AGND").
!
!

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 7
Operating voltage
For proper operation, the MD 10.010 requires depending of its version:
Material No. 527320: 85 … 250 VAC
Material No. 528240: 18 … 30 VDC
Only operate the measured value display within the defined op-
erating voltage range and type.
Undervoltage may result in malfunction; overvoltage can lead to
irreversible damage.
Supply voltage for sensor
The measurement display provides a voltage source for the operation of
a sensor (or even several sensors).
The supplied nominal voltage is 24 VDC, its tolerance is type depending:
Material No. 527320: ±15 %
Material No. 528240
2
: ±20 %
The maximum load current is limited to 160 mA.
Analog input
The jumper in the housing cover selects the signal characteristic (modus)
of the analog input of the display (current or voltage).
If the bridge is placed on the left contact pin pair (Voltage) a voltage signal
is expected. If the plug connects the right pair of pins (Current), a current
signal must be active.
Figure 3: Jumper in housing cover for selecting input signal modus
2
The supply voltage of the display is connected through, with a series resistance of 25 .

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 8
Analog output
The analog output of the MD 10.010 is galvanically isolated from its own
energy supply and the sensor supply (pin 13: Analog Out+; pin 12: Analog
Out–≙AGND; see Figure 2).
When using the display version with DC supply, the mass of the analog
output (AGND) can be connected to that of the operating voltage (GND).
However, the galvanic isolation is lost and a possible mass offset in the
connecting cable can lead to a distortion of the output signal.
When using the display version with AC supply, the analog output must
not be in contact with the supply voltage under any circumstances.
The load resistance RLhas to be connected to AGND:
Current mode: RL≤400 
Voltage mode: RL≥1 k
In the configuration menu, beginning of signalization range without (0 mA
or 0 V) or with offset (signal transmitting zero point: 4 mA) can be selected.
5 Signalizations
Display
Display
State

Initialization of measured value display
Duration approx. 5 s (after switch-on of supply voltage)

Key lock activated

Error message of sensor
Flashing
Measurement range that can be displayed is exceeded or not reached
Table 2
Analog output
If the connected sensor indicates an error, the latter is also transmitted to
the analog output:
Output area without offset (0 ... 20 mA / 0 ... 10 V):
In current mode, the interface outputs 0 mA.
In voltage mode, the output switches to 0 V.
Output area with offset (4 ... 20 mA):
The interface outputs 2 mA.

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 9
6 Startup
Before switching on the SCHMIDT®Measured Value Display MD 10.010,
check whether the device is intact as well as installed correctly, both me-
chanically and electrically.
If the display is in the correct operational state, it is ready for operation
approx. 5 seconds after switching on the supply voltage.
Operating and display elements
Figure 4: Operating and display elements
The labels included in the delivery can be glued to the unit field to indi-
cate the desired measuring unit (e.g. m/s, m³/h ...) of the main display.
Main display:
- Standard: Measurement
value
- Menu: Parameter
Auxiliary display:
- Standard: Status of
alarm outputs
- Menu: Identification of
the selected
menu items

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 10
Standard mode
After a successful initialization phase, the MD 10.010 enters its standard
operation mode as “measured value display”(see Figure 4). The main
display shows the current measured value and the status of the alarm out-
puts are depicted in the auxiliary display (see Table 3).
Display
State

Alarm output 1: Not activated
Alarm output 2: Not activated

Alarm output 1: Activated
Alarm output 2: Not activated

Alarm output 1: Not activated
Alarm output 2: Activated

Alarm output 1: Activated
Alarm output 2: Activated
Table 3
Handling
The device can be operated by means of two different menus which are
activated from standard mode using the parameter key .
Shortly press the parameter key to open the display menu. In this menu,
the actual measured values, the stored peak values (minimum and maxi-
mum) as well as the switching points of the alarm outputs can be sequen-
tially selected by further pressing of the parameter key. If the key isn’t
pressed for more than 2 minutes, the device returns automatically to
standard mode.
If the parameter keyis pressed for more than 2 seconds, the configuration
menu opens. It can be used to configure the measuring input (sensor sig-
nal), both alarm outputs and the analog output (details see chapter 7).
The menu items are selected sequentially by using the parameter key.
The settings of the currently selected menu item can be modified using
the arrow keys ( ).
The configuration menu is left automatically after the last menu item or if
no key is pressed for more than 2 minutes. It can also be quitted at any
time by a long press (more than 2 seconds) of the parameter key.
Table 4 shows an overview of the presentation and meaning of the differ-
ent menu items.