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.

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 11
Example application 1 –step by step
With a flow sensor (measuring range: 40 m/s; output signal: 4 ... 20 mA)
the flow velocity shall be indicated in m/s. The analog output of the LED
display shall signal a measuring range of 1 m/s (≙4 mA) up to 20 m/s
(≙20 mA). If the flow velocity exceeds 15 m/s an alarm signal is issued
over relay 1, without hysteresis or delays.
- Install LED display in desired position
- Plug jumper in housing cover for “current measurement”
- Connect supply of sensor to LED display
- Connect analog output of sensor to LED display
- Connect analog output and relay output 1 of LED display
- Connect current supply of LED display and close housing
- After switching on supply voltage: Initialization, followed by indication
of an “unconfigured“ measurement value on the main display
- Call-up configuration menu by pushing for 2 seconds
Menu item
Main display
Description


Averaging of measuring value: Deactivated
Configuration of analog input:


Signal mode: 4 ... 20 mA

.
Accuracy of indication: 2 decimals

.
Start value: 0 m/s (≙4 mA)

.
End value: 40 m/s (≙20 mA)
Configuration of alarm output 1:


Alarm output: Activated


Switching mode: Active when exceeding

.
Switching point: 15 m/s

.
Switching hysteresis: 0 m/s

..
Response delay: 0 s

..
Release delay: 0 s


Alarm output 2: Deactivated

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 12
Menu item
Main display
Description
Configuration of analog output:


Analog output: Activated


Signal mode: 4 ... 20 mA

.
Start value: 1 m/s (≙4 mA)

.
End value: 20 m/s (≙ 20 mA)


Operation lock: Deactivated
After the final menu item, the configuration menu is left automatically going
back to the main display.
- Verification of indication values in display menu (short press of )
Menu item
Main display
Description

.
Actual measured value of sensor (m/s)

.
Actual raw signal value of sensor (mA)

.
Peak-value memory:
- Maximum measured value of sensor
- Deletion of stored value by using for approx. 5 s

.
Peak-value memory:
- Minimal measured value of sensor
- Deletion of stored value by using for approx. 5 s

.
Switching point of alarm output A1: 15 m/s


Alarm output A2: Deactivated

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 13
Example application 2 –step by step
With a flow sensor (measuring range: 60 m/s; output signal: 4 ... 20 mA)
that is installed into a DN 50 tube the volume flow shall be calculated and
indicated in m³/h. The analog output of the LED display shall be a current
interface with limit values of 4 mA ≙0 m³/h and 20 mA ≙200 m³/h. As
soon as 150 m³/h are exceeded, a switching signal will be required.
- Maximal volume flow measuring range: 60 m/s ≙343 m³/h
For determination, use the sensor instruction manual or the SCHMIDT®
flow calculator:
www.schmidt-sensors.com or www.schmidttechnology.de
- Install LED display in desired position
- Plug jumper in housing cover for “current measurement”
- Connect supply of sensor to LED display
- Connect analog output of sensor to LED display
- Connect analog output and relay output 1 of LED display
- Connect current supply of LED display and close housing
- After switching on the supply voltage: Initialization followed by indica-
tion of an “unconfigured” main value on the display
- Call-up of configuration menu by pushing for 2 seconds
Menu item
Setting
Description


Averaging of measurement value: Deactivated
Configuration of analog input:


Signal mode: 4 ... 20 mA

.
Accuracy of indication: 1 decimal

.
Start value: 0 m³/h (≙ 4 mA )

.
End value: 343 m³/h (≙ 20 mA )
Configuration of alarm output 1:


Alarm output: Activated


Switching mode: Active when exceeding

.
Switching point: 150 m³/h

.
Switching hysteresis: 10 m³/h (alarm output de-
clines in case of a decrease below 140 m3/h)

..
Response delay: 30 s

..
Release delay: 30 s


Alarm output 2: Deactivated

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 14
Menu item
Setting
Description
Configuration of analog output:


Analog output: Activated


Signal mode: 4 ... 20 mA

.
Start value: 0 m³/h (≙0 mA)

.
End value: 200 m³/h (≙20 mA)


Operation lock: No
After the final menu item, the configuration menu is left automatically going
back to the main display.
- Verification of indication value on display menu (short press of )
Menu item
Indication
Description

.
Actual measured value of sensor (m³/h)

.
Actual raw signal of sensor (mA)

.
Peak-value memory:
- Maximum measured value of sensor
- Deletion of stored value by using for approx. 5 s

.
Peak-value memory:
- Minimum measured value of sensor
- Deletion of stored value by using for approx. 5 s

.
Switching point of alarm output A1: 150 m3/h


Alarm output A2: Deactivated

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 15
7 Configuration menu
Information regarding presentation
Menu item is only displayed if the respective
configuration is selected
Flow diagram
Call-up of configuration menu


Averaging of input signal:
, ., ., ... .s
Modification by pressing arrow keys


Selection of input signal characteristic:
 (mA), (V), (mA)
Modification by pressing arrow keys 
.

Number of decimal places of measured value:
.,.,.,.,.
Modification by pressing arrow keys
.

Start value of measuring range of sensor:
(e.g. 0 ... 20 m/s → 0)
Modification by pressing arrow keys
.

End value for measuring range of sensor:
(e.g. 0 ... 20 m/s → 20)
Modification by pressing arrow keys


Activation of alarm output 1:
, 
Modification by pressing arrow keys
2 s

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 16


Switching behaviour of alarm output 1:
(switches when exceeding switching point) /
(switches when falling below switching point)
Modification by pressing arrow keys
.

Switching point of alarm output 1:
Modification by pressing arrow keys
.

Hysteresis of alarm output 1 (four digits):
Modification by pressing arrow keys
..

Response delay of alarm output 1:
.. ... ..(h.mm.ss)
Modification by pressing arrow keys
..

Release delay of alarm output 1:
.. ... ..(h.mm.ss)
Modification by pressing arrow keys


Configuration of alarm output 2:
Parameterization identical to that of alarm output 1
(menu items  to )


Activation of analog output:
, 
Modification by pressing arrow keys

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 17


Selecting signal mode of analog output signal:
 (mA), (V), (mA)
Modification by pressing arrow keys
.

Start value for indication range of analog output:
Modification by pressing arrow keys
.

End value for indication range of analog output:
Modification by pressing arrow keys


Key lock:
, 
Modifications in configuration menu and reset of peak
value memory are locked
Modification using arrow keys even if “key lock”is ac-
tive
.

Return to the main display

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 18
Menu overview
Menu item
Description

Indication of actual measured value

Indication of switching point of alarm output 1

Indication of switching point of alarm output 2

Decimals of input signal

End value of input signal

End value of output signal

Value averaging

Operation lock

Signal mode of input signal

Signal mode of analog output

Indication of minimum measuring value

Activation of analog output

Indication of maximum measuring value

Indication of raw value

Start value of input signal

Start value of analog output

Activation of alarm output 1

Switching behaviour of alarm output 1

Switching point of alarm output 1

Hysteresis of alarm output 1

Response delay of alarm output 1

Release delay of alarm output 1

Activation alarm of output 2

Switching behaviour of alarm output 2

Switching point of alarm output 2

Hysteresis of alarm output 2

Response delay of alarm output 2

Release delay of alarm output 2

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 19
8 Service information
Eliminating malfunctions
The following table lists possible errors (error images). A description of the
way to detect errors is given. Furthermore, the possible causes and
measures to be taken to eliminate errors are listed.
Error image
Possible causes
Troubleshooting
Displays off, and
analog output to zero
Supply voltage UB:
No UBpresent
UB(DC) has wrong polar-
ity
UB too low
Device defective
Supply voltage:
Check if connected cor-
rectly to control unit
Check voltage type
(DC, AC)
Check if there is supply
voltage at the terminal
(cable break)
Measuring range too large
/ small
Erroneous configuration of
sensor's measuring range
Check if analog measured
value is correct ()
Check configuration of
start () and end value
() of sensor's measur-
ing range
Analog measuring value
() too large / small
Jumper of signal mode ana-
log input
Set jumper according sig-
nal mode
Input configuration
Check input configuration
() according to input
signal
Analog signal too large /
small
Output configuration
Check configuration
Unexpected values at
alarm output
Configuration of alarm out-
put
Check configuration
Table 4

Instructions for Use –SCHMIDT®LED Measured Value Display MD 10.010 Page 20
9 Technical data
Technical data
Displays
Main display: 7-segments LED red; 14.2 mm; 6 digits
Sub display: 7-segments LED red; 7 mm; 2 digits
Input signal
Current: 0 / 4 … 20 mA RI = 200 Ω
Voltage: 0 … 10 V RI= 12,5 kΩ
Analog output
Galvanically isolated, short-circuit protected
Permissible load resistance RL:
Voltage3(0 … 10 V): RL > 1 kΩ
Current (0 / 4 … 20 mA): RL < 400 Ω
Accuracy of analog output
±0.2 % of measured value
Relay outputs
2 pc. relay changeover contacts (SPDT, potential-free)
Max. 250 VAC / 5 A
Voltage supply for sensor
Short-circuit protected; current limited to max. 160 mA
Mat.-no. 527320: 24 VDC ± 15 %
Mat.-no. 528240: 24 VDC ± 20 %4
Supply voltage of display
Mat. no. 527320: 85 - 250 VAC, 50 ... 60 Hz
Mat. no. 528240: 18 - 30 VDC
Power consumption of display
Max. 8 VA
Operating temperature
-20 … +60 °C
Storage/transport temperature
-40 … +70 °C
Environmental conditions
Up to 75 % RH (condensing allowed)
Connection
14 pc. spring clamps, bare braid, ≤1.5 mm²
4 pc. compression fittings
Operating position
Arbitrary
Ingress protection
IP65 (housing and screw connections tightly sealed)
Protection class
II (touch proofed)
Housing material
Polyamide, glass-fibre reinforced (PA6-GF 15/15),
colour similar to RAL 7001
Weight
Approx. 370 g
Table 5
3
current limited
4
Supply voltage of the display is connected through, with a series resistance of 25 .