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:

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

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)

Sensor 1: In-

Analog input 1: Sensor signal GND1

Sensor 1: In+

Analog input 1: Sensor signal (set jumper for con-

figuration of signal modus)

Sensor 1: 24V -

Supply voltage of sensor: GND

Sensor 1: 24V+

Supply voltage of sensor: +24 VDC

Analog Out -

AGND (galvanically isolated from GND)

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.

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

: ±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

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

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.

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