User manual M3

Pt100 3-/4-wire -200.0°C…850.0°C / -328.0°C…1562.0°F

Technical features:

• red display from -19999…99999 digits (optional green, orange, blue or tricolour display)

• installation depth: 120 mm without plug-in screw terminal

• multi voltage power supply unit 100-240 VAC, alternatively 10-40 VDC galv. isolated

• adjustment via factory setting or directly on the sensor signal

• min/max-memory with adjustable permanent display

• display flashing at threshold value exceedance / undercut

• flexible alarm system with adjustable delay times

• brightness control via parameter or front keys

• programming interlock via access code

• protection class IP65 at the front

• plug-in screw terminal

• optional: 1 or 2 relay outputs

• optional: 1 independently scalable analog output

• optional: interface RS232 or RS485

• accessories: pc-based configuration-kit PM-TOOL with CD & USB adapter

• on demand: devices for working temperatures of -25°C…60°C

M3_3CGB.pdf update: 30.03.2015

96x24

Identification

STANDARD TYPES

Pt100 3-/4-wire

Housing size: 96x24 mm

ORDER NUMBER

M3-3TR5B.010C.S70BD

M3-3TR5B.010C.W70BD

Options – breakdown of order code:

Standard type M-line

Installation depth mm

144 mm (154 mm),

incl. plug-in terminal

Housing size

B96xH24xD120 mm

Type of display

Temperature

Display colours

Blue

Green

Red

Orange

Number of digits

5-digit

Digit height

14 mm

Digital input

without

Interface RS232

Interface RS485

0

3

4

3

1

T

B

G

R

Y

5

B

M 3- 3 T R 5 B. 0 1 0 C. W 7 2 B D

Dimension

D physical unit

Version

B B

Switching points

0 without

1 1 relay output

2 2 relay outputs

Protection class

1 without keypad, operation via programming plug on the back side

7 IP65 / plug-in terminal

Voltage supply

S 100-240 VAC

W 10-40 VDC galv. insulated

Measuring input

C Pt100

Analog output

0 without

X 0-10 VDC, 0/4-20 mA

Temperature devices

1 P t100 3‐/4‐wire

Please state physical unit by order, e.g. °C

Contents

1.

2.

3.

4.

5.

Brief descirption

Assembly

Electrical connection

Function description and operation

4.1. Programming software PM-TOOL

Setting up the device

5.1. Switching on

5.2. Standard parameterisation (flat operation level)

Value assignment for the triggering of the signal input

5.3. Programming interlock „RUN“

Activation/Deactivation of the programming interlock or change into professional or flat operation level

5.4. Extended parametersation (professional operation level)

5.4.1. Signal input parameters „INP“

Value assignment for the triggering of the signal input

5.4.2. General device parameters „FCT“

Superior device functions like min/max permanent, brightness control, as well as the control of the keyboard layout

5.4.3. Safety parameters „COD“

Assignment of user and master code to lock or to receive access to defined parameter such as analog output and alarms, etc.

5.4.4. Serial parameters „ser“

Parameter for interface definition

5.4.5. Analog parameters „Out“

6.

7.

Analog outpur functions

5.4.6. Relay functions „rel“

Parameter for setpoint definition

5.4.7. Alarm parameters „AL1…AL4“

Actuator and dependencies of the alarms

Reset to factory settings

Reset parameters onto the delivery state

Alarms / Relays

Functional principle of the switching outputs

Interfaces 8.

9.

Connection RS232 and RS485

Technical data

10.

Safety advices

11.

Error elimination

13

20

21

22

23

25

26

17

18

14

15

6

6

4

5

6

2

2

3

8

9

9

11

1

1. Brief description

1. Brief description

2. Assembly

The panel meter instrument M3-3C is a 5-digit device for Pt100 sensors and a visual threshold value monitoring via the display. The configuration happens via four keys at the front or by the optional PC software PM-TOOL. The integrated programming interlock prevents unrequested chnages of parameters and can be unlocked again with an individual code. Optional available is one analog output for further evaluating in the unit.

With help of the two galvanic isolated setpoints (optional), free adjustable limit values can be controlled and reported to a superior master display.

The electrical connection is done via plug-in terminals on the back side.

Selectable functions like e.g. the recall of the min/max-value, a direct threshold value regulation during operation mode, complete the modern device concept.

2. Assembly

Please read the Safety advices on page 25 before installation and keep this user manual for future reference.

3,0

Sealin g

96,0

Gap for physical unit

145

,0 (

154

,0) h in clu pen din ds g p on opt

Ins tall atio n d ept

de

(de pth lug

-in ion term ina s) l

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!

2

3. Electrical connection

Type M3-3VT5B.010C.S70BD supply 100-240 VAC 50/60Hz, DC ±10%

Type M3-3VC5B.010C.W70BD supply 10-40 VDC galv. isolated, 18-30 VAC 50/60Hz

3. Electrical connection

3

4. Function description and operation

4. Function description and operation

Operation

The operation is divided into three different levels.

Menu level (delivery status)

This level is for the standard settings of the device. Only menu items which are sufficent to set the device into operation are displayed. To get into the professional level, run through the menu level and parameterise “prof“ under menu item RUN.

Menu group level (complete function volume)

Suited for complex applications as e.g. linkage of alarms, setpoint treatment, totaliser function etc. In this level function groups which allow an extended parameterisation of the standard settings are availabe. To leave the menu group level, run through this level and parameterise „uloc„ under menu item RUN.

Parameterisation level:

Parameter deposited in the menu item can here be parameterised. Functions, that can be changed or adjusted, are always signalised by a flashing of the display. Settings that are made in the parameterisation level are confirmed with [P] and thus saved. By pressing the „[O]-key“ it leads to a break-off of the value input and to a change into the menu level. All adjustments are saved automatically by the device and changes into operating mode, if no further key operation is done within the next 10 seconds.

Level Key

Menu-level

Parameterisationlevel

Menu-group-level

Description

Change to parameterisation level and deposited values.

Keys for up and down navigation in the menu level.

Change into operation mode.

To confirm the changes made at the parameterization level.

Adjustment of the value / the setting.

Change into menu level or break-off in value input.

Change to menu level.

Keys for up and down navigation in the menu group level.

Change into operation mode or back into menu level.

4

Function chart:

4. Function description and operation

4.1 Parameterisation software PM-TOOL:

Part of the PM-TOOL are the software on CD and an USB-cable with device adapter. The connection happens via a 4-pole micromatch-plug on the back side of the device, to the PC-side the connection happens via an USB plug.

System requirements: PC incl. USB interface

Software: Windows XP, Windows VISTA

With this tool the device configuration can be generated, omitted and saved on the PC. The parameters can be changed via the easy to handle program surface, whereat the operating mode and the possible selection options can be preset by the program.

5

5. Setting up the device

5. Setting up the device

5.1. Switching on

Once the installation is complete, start the device by applying the voltage supply. Before, check once again that all electrical connections are correct.

Starting sequence

For 1 second during the switching-on process, the segment test (8 8 8 8 8) is displayed followed by an indication of the software type and, after that, also for 1 second the software version. After the starting sequence, the device switches to operation/display mode.

5.2. Standard parameterisation: (Flat operation level)

To parameterise the display, press the [P]-key in operating mode for 1 second. The display then changes to the menu level with the first menu item TYPE.

Menu level Parameterisation level

Selection of the input signal, tYPE:

Default: 4l

Available as measuring input types are 3- and 4-wire-Pt100 signals. Confirm the selection with

[P] and the display switches back to menu level.

Type of temperature metering UNIT:

Default: °c

The temperature can be displayed in °C or in °F. Confirm the selection with [P] and the display switches back to menu level.

Setting the decimal point, DOt:

Default: 0.0

The decimal point on the display and the physical unit can be changed with [▲] [▼]. If e.g. temperature measurement in °C is selected, then choose between 0°C and 0.0°C in the parameterisation level. Confirm with [P], the display then switches back to the menu level again.

Impedance matching, offs:

Default: 0.0

The value for the sensor calibration is selectable from the smallest to the highest digit with [▲]

[▼] and confirmed with [P]. After the last digit the display switches back to the menu level again. The value calibration for a temperature measurement in °C can be adjusted between

-20.0 and +20.0 and in °F between -36.0 and +36.0. If the type of the measurement is changed later, then the value is rounded.

6

5. Setting up the device

Menu level Parameterisation level

Setting up the display time, SEC:

Default: 1.0

then

The display time is set with [▲] [▼]. The display moves up in increments of 0.1 up to 1 second and in increments of 1.0 up to 10.0 seconds. Confirm the selection by pressing the [P] button.

The display then switches back to the menu level again.

Selection of analog output, Out.rA:

Default: 4-20

Three output signals are available: 0-10 VDC, 0-20 mA and 4-20 mA, with this function, the demanded signal is selected.

Setting up the final value of the analog output, Out.En:

Default: 850.0

The final value is adjusted from the smallest digit to the highest digit with [▲] [▼] and digit by digit confirmed with [P]. A minus sign can only be parameterised on the highest digit. After the last digit, the device changes back into menu level.

Setting up the initial value of the analog output, Out.OF:

Default: -200.0

The final value is adjusted from the smallest digit to the highest digit with [▲] [▼] and digit by digit confirmed with [P]. A minus sign can only be parameterised on the highest digit. After the last digit, the device changes back into menu level.

Threshold values / Limits, LI-1:

Default: 200.0

This value defines the threshold, that activates/deactivates an alarm.

Hysteresis for limit values, HY-1:

Default: 0.0

The delayed reaction of the alarm is the difference to the threshold value, which is defined by the hysteresis.

7

5. Setting up the device

Menu level Parameterisation level

Function for threshold value undercut / exceedance, Fu-1:

Default: high

A limit value undercut is selected with Louu (for LOW = lower limit value), a limit value exceedance with High (for HIGH = higher limit value). If e.g. limit value 1 is on a threshold level of 100 and allocated with function High, an alarm is activated by reaching of the threshold level.

If the threshold value was allocated to Low, an alarm will be activated by undercutting the threshold value, as long as the hysteresis is zero.

The same applies to LI-2 !

User code (4-digit number-combination, free available), U.CodE:

Default: 0000

If this code was set (>0000), all parameters are locked for the user, if LOC has been selected before under menu item run. By pressing [P] for 3 seconds in operation mode, the display shows COde. The U.Code needs to be entered to get to the reduced number of parameter sets.

The code has to be entered befor each parameterisation, until the A.Code (Master code) unlocks all parameters again.

Master code (4-digit number-combination, free available), A.CodE:

Default: 1234

All parameters can be unlocked with this code, after LOC has been activated under menu item run. By pressing [P] for 3 seconds in operation mode, the display shows COde and enables the user to reach all parameters by entering the A.codE. Under run the parameterisation can be activated permanently by selecting ULOC or ProF, thus at an anew pushing of [P] in operation mode, the code needs not to be entered again.

5.3. Programming interlock „RUN“

Activation / deactivation of the programming lock or completion of the standard

parameterisation with change into menu group level (complete function range), run:

Default: uloc

With the navigation keys [▲] [▼], choose between the deactivated key lock Uloc (works setting) and the activated key lock Loc, or the change into the menu group level ProF. Confirm the selection with [P]. After this, the display confirms the settings with "- - - - -", and automatically switches to operating mode. If Loc was selected, the keyboard is locked. To get back into the menu level, press [P] for 3 seconds in operating mode. Now enter the CODE (works setting 1 2 3 4) that appears using [▲] [▼] plus [P] to unlock the keyboard. FAIL appears if the input is wrong. To parameterise further functions ProF needs to be set. The device confirms this setting with „- - - - -„ and changes automatically in operation mode. By pressing [P] for approx.

3 seconds in operation mode, the first menu group InP is shown in the display and thus confirms the change into the extended parameterisation. It stays activated as long as ULOC or LOC is entered in menu group RUN.

8

5.4. Extended parameterisation (Professional operation level)

5.4.1. Signal input parameters

Menu group level

Menu level

5. Setting up the device

Menu level Parameterisation level

Selection of the input signal, tYPE:

Default: 4l

Available as measuring input types are 3- and 4-wire-Pt100 signals. Confirm the selection with

[P] and the display switches back to menu level.

Type of temperature metering, UNIT:

Default: °c

The temperature can be displayed in °C or in °F. Confirm the selection with [P] and the display switches back to menu level.

Setting the decimal point, DOt:

Default: 0.0

The decimal point on the display and the physical unit can be changed with [▲] [▼]. If e.g. temperature measurement in °C is selected, then choose between 0°C and 0.0°C in the parameterisation level. Confirm with [P], the display then switches back to the menu level again.

Impedance matching, offs:

Default: 0.0

The value for the sensor calibration is selectable from the smallest to the highest digit with

[▲] [▼] and confirmed with [P]. After the last digit the display switches back to the menu level again. The value calibration for a temperature measurement in °C can be adjusted between

-20.0 and +20.0 and in °F between -36.0 and +36.0. If the type of the measurement is changed later, then the value is rounded.

9

5. Setting up the device

Menu level Parameterisation level

Setting up the display time, SEC:

Default: 1.0

then

The display time is set with [▲] [▼]. The display moves up in increments of 0.1 up to 1 second and in increments of 1.0 up to 10.0 seconds. Confirm the selection by pressing the [P] button.

The display then switches back to the menu level again.

Device undercut, dI.Und:

Default: -i9999

With this function the device undercut (_ _ _ _ _) can be defined on a definite value. Exception is input type 4-20 mA, it already shows undercut at a signal <1 mA, so a sensor failure is marked.

Display overflow, dI.OUE:

Default: 99999

With this function the display overflow (

_ _ _ _ _

) can be defined on a definite value.

Input variable of process value, SIG.in:

Default: a.meas

With this parameter, the device can be controlled via the analog input signals a.meas = 0-20 mA,

4-20 mA or 0-10 VDC or via the digital signals of the interface M.bus = RS232/RS485 (Modbus protocol). With [P] the selection is confirmed and the device changes into menu level.

Back to menu group level, rEt:

With [P] the selection is confirmed and the device changes into menu group level „–INP–“.

10

5. Setting up the device

5.4.2. General device parameters

Menu group level

Menu level

Menu level Parameterisation level

Display time, DISEC:

Default: 01.0

then

The display is set up with [▲] [▼]. Thereby it switches up to 1 second in increments of 0.1 seconds and up to 10.0 seconds in increments of 1.0. With [P] the selection is confirmed and the device changes into menu level.

Rounding of display values, round:

Default: 00001

This function is for instable display values, where the display value is changed in increments of 1, 5, 10 or 50. This does not affect the resolution of the optional outputs. With [P] the selection is confirmed and the device changes into menu level.

Display, dISPL:

Default: actua

With this function the current measuring value or the min/max-value can be allocated to the display. With [P] the selection is confirmed and the device changes into menu level.

Brightness control, Light:

Default: 15

The brightness of the display can be adjusted in 16 levels from 00 = very dark to 15 = very bright via this parameter or alternatively via the navigation keys from the outside. During the start of the device the level that is deposited under this parameter will always be used, even though the brightness has been changed via the navigation keys in the meantime.

11

5. Setting up the device

Menu level Parameterisation level

Display flashing, FLASH:

Default: no

A display flashing can be added as additional alarm function either to single or to a combination of off-limit condition. With no, no flashing is allocated.

Assignment (deposit) of key functions, tASt:

Default: no

For the operation mode, special functions can be deposited on the navigation keys [▲] [▼], in particular this function is made for devices in housing size 48x24mm which do not have a 4th key ([O]-key). If the min/max-memory was activated with EHtr, all measured min/max-values are saved during operation and can be recalled via the navigation keys. The values get lost by restart of the device. If the threshold value correction LI.12 or LI.34 is choosen, the values of the threshold can be changed during operation without disturbing the operating procedure. Under

Light the brightness can be changed during operation. If no is selected, the navigation keys are without any function in the operation mode.

Back to menu group level, rEt:

With [P] the selection is confirmed and the device changes into menu group level „–fct–“.

12

5. Setting up the device

5.4.3. Safety parameters

Menu group level

Menu level

Menu level Parameterisation level

User code U.Code:

Default: 0000

Via this code reduced sets of parameters can be set free. A change of the U.CodE can be done via the correct input of the A.CodE (master code).

Master code, A.Code:

Default: 1234

By entering A.CodE the device will be unlocked and all parameters are released.

Release/lock analog output parameter, Out.LE:

Default: all

Analog output parameter can be locked or released for the user:

- En-oF: the initial or final value can be changed in operation mode

- Out.EO: the output signal can be changed from e.g. 0-20 mA to 4-20 mA or 0-10 VDC

- ALL: analog output parameters are release

- no: all analog output parameters are locked

Release/lock alarm parameters, AL.LEU:

Default: all

This parameter describes the user release/user lock of the alarm:

- LIMIt: here only the range of value of the threshold values 1-4 can be changed

- ALrM.L: here the range of value and the alarm trigger can be changed

- ALL: all alarm parameters are released

- no: all alarm parameters are locked

13

5. Setting up the device

Menu level Parameterisation level

Back to menu group level, rEt:

With [P] the selection is confirmed and the device changes into menu group level „–COD–“.

5.4.4. Serial parameters

Menu group level

Menu level

Menu level Parameterisation level

Device address, ADDR:

Default: 001

The device address is adjusted from the smallest to the largest digit with the navigation keys

[▲] [▼] and confirmed digit per digit with [P]. A device address up to max. 250 is available.

Interface data: Baudrate 9600 bit/s, 8 databyte, 1 stopbit, no parity (8n1).

ModBus operating modes, b.mode:

Default: ascii

There are two different types of operating modes: ASCII and rtu. Modbus transfers no binary cycle, but the ASCII-Code. Thus it is directly readable, however the data throughput is smaller in comparison to the RTU. Modbus RTU (RTU = Remote Terminal Unit) transfers the data in binary-coded. This leads to a good data troughput, even though the data cannot be evaluated directly, as they first need to be transfered into a readable format.

Timeout, tIout:

Default: 000

The monitoring of the data transfer is parameterised in seconds up to max. 100 seconds; there is no monitoring with an input of 000. The timeout is adjusted from the smallest to the largest digit with the navigation keys [▲] [▼] and confirmed digit per digit with [P]. After the last digit the device changes back into menu level.

Back to menu group level, rEt:

With [P] the selection is confirmed and the device changes into menu group level „–SER–“.

14

5. Setting up the device

5.4.5. Analog output parameters

Menu group level

Menu level

Menu level Parameterisation level

Selection reference of analog output, OutPt:

Default: actua

The analog output signal can refer to different functions, in detail these are the current measurand, the min-value or the max-value. With [P] the selection is confirmed and the device changes into menu level.

Selection analog output, Out.rA:

Default: 4-20

Three output signals are available 0-10 VDC, 0-20 mA and 4-20 mA. Select the desired signal with this function.

Setting the final value of the analog output, Out.En:

Default: 850.0

The final value is adjusted from the smallest to the highest digit with [▲] [▼] and confirmed digit per digit with [P]. A minus sign can only be parameterised on the highest digit. After the last digit the device changes back into menu level.

Setting the initial value of the analog output, Out.OF:

Default: -200.0

The initial value is adjusted from the smallest to the highest digit with [▲] [▼] and confirmed digit per digit with [P]. A minus sign can only be parameterised on the highest digit. After the last digit the device changes back into menu level.

15

5. Setting up the device

Menu level Parameterisation level

Overflow behaviour, O.FLoU:

Default: edge

To recognise and evaluate faulty signals, e.g. by a controller, the overflow behaviour of the analog output can be defined. As overflow can be seen either EdGE, that means the analog output runs on the set limits e.g. 4 and 20 mA, or to.OFF (input value smaller than initial value, analog output switches on e.g. 4 mA), to.End (higher than final value, analog output switches on e.g. 20 mA). If to.MIn or to.MAX is set, the analog output switches on the smallest or highest possible binary value. This means that values of e.g. 0 mA, 0 VDC or values higher than 20 mA or 10 VDC can be reached. With [P] the selection is confirmed and the device changes into menu level.

Back to menu group level, rEt:

With [P] the selection is confirmed and the device changes into menu group level „–out–“.

16

5. Setting up the device

5.4.6. Relay functions

Menu group level

Menu level

Menu level Parameterisation level

Alarm relay 1, rEL-1:

Default: al-1

….

The same applies for relays 2

….

Each setpoint (optional) can be linked up via 4 alarms (by default). This can either be inserted at activated alarms Al-1/4 or deactivated alarms Aln1/4. If LOGIC is selected, logical links are available in the menu level Log-1 and Com-1. Access to these two menu levels is via LOGic, at all other selected functions, these two parameters are overleaped. Via On/OFF the setpoints can be activated/deactivated, in this case the output and the setpoint display are set/not set on the front of the device. With [P] the selection is confirmed and the device changes into menu level.

Logic relay 1, Log-1

Default: or

Here, the switching behaviour of the relay is defined via a logic link, the following schema describes these functions with inclusion of AL-1 and AL-2. This parameter is only possible if LOgic was selected under REl-1.

A1 v A2

____ _ _

A1 v A2 = A1

Λ

A2

A1

Λ a2

____ _ _

A1

Λ

A2 = A1 v A2

As soon as a selected alarm is activated, the relay operates. Equates to operating current principle.

The relay operates only, if no selected alarm is active. Equates to quiescent current principle.

The relay operates only, if all selected alarms are active.

As soon as a selected alarm is not activated, the relay operates.

With [P] the selection is confirmed and the device changes into menu level.

Alarms for relay 1, CoM-1:

Default: a.i

….

The allocation of the alarms to relay 1 happens via this parameter, one alarm or a group of alarms can be chosen. With [P] the selection is confirmed and the device changes into menu level.

17

5. Setting up the device

Menu level Parameterisation level

Back to menu group level, rEt:

With [P] the selection is confirmed and the device changes into menu group level „–rel–“.

5.4.7. Alarm parameters

Menu group level

Menu level

Menu level Parameterisation level

Dependency alarm 1, ALrM.1:

Default: actua

The dependency of alarm 1 can be related to special functions, in detail these are the current measuring value, the min-value, the max-value. With [P] the selection is confirmed and the device changes into menu level.

Example:

By using the maximum value Alarm.1 = Max.va in combination with a threshold monitoring Fu-1 =

High, an alarm confirmation can be realised. Use the navigationkeys, the fourth key or the digital input for confirmation.

Threshold values / limit values, LI-1:

Default: 200.0

The limit value defines the threshold, that activates/deactivates an alarm.

Hysteresis for threshold values, HY-1:

Default: 0.0

The delayed reaction of the alarm is the difference to the threshold value, which is defined by the hysteresis.

18

5. Setting up the device

Menu level Parameterisation level

Function for threshold value undercut / exceedance, Fu-1:

Default: high

A limit value undercut is selected with Louu (for LOW = lower limit value), a limit value exceedance with High (for HIGH = higher limit value). If e.g. limit value 1 is on a threshold level of 100 and allocated with function High, an alarm is activated by reaching of the threshold level.

If the threshold value was allocated to Low, an alarm will be activated by undercutting the threshold value, as long as the hysteresis is zero.

Switching-on delay, ton-1:

Default: 000

For limit value 1 one can preset a delayed switching-on of 0-100 seconds.

Switching-off delay, toF-1:

Default: 000

For limit value 1 one can preset a delayed switching-off of 0-100 seconds.

Back to menu group level, rEt:

With [P] the selection is confirmed and the device changes into menu group level „–Al1–“.

The same applies for Al2 to al8.

19

6. Reset to factory settings

Programming interlock, run:

Menu group level

Description see page 8, menu level run

6. Reset to default values

To return the unit to a defined basic state, a reset can be carried out to the default values.

The following procedure should be used:

• Switch off the power supply

• Press button [P]

• Switch on voltage supply and press [P]-button until „- - - - -“ is shown in the display.

With reset, the default values of the program table are loaded and used for subsequent operation. This sets the unit back to the state in which it was supplied.

Caution! All application-related data are lost.

20

7. Alarms / Relays

7. Alarms / Relays

This device has 8 virtual alarms that can monitor one limit value in regard of an undercut or exceedance.

Each alarm can be allocated to an optional relay output S1-S2; furthermore alarms can be controlled by events like e.g. min/max-value.

Function principle of alarms / relays

Alarm / Relay x

Switching threshold

deactivated, instantaneous value or an allocation via the min/max-value

Threshold / limit value of the change-over

Hysteresis

Working principle

Broadness of the window between the switching thresholds

Operating current / quiescent current

Operating current

By operating current the alarm S1-S2 is

off below the threshold and on on reaching the threshold.

Quiescent current

By quiescent current the alarm S1-S2 is

on below the threshold and switched off on reaching the threshold.

21

Switching-on delay

The switching-on delay is activated via an alarm and e.g. switched 10 seconds after reaching the switching threshold, a short-term exceedance of the switching value does not cause an alarm, respectively does not cause a switching operation of the relay. The switching-off delay operates in the same way, keeps the alarm / the relay switched longer for the parameterised time.

8. Interfaces

8. Interfaces

The interface RS485 is connected via a screened data line with twisted wires (Twisted-Pair). On each end of the bus segment a termination of the bus lines needs to be connected. This is neccessary to ensure a secure data transfer to the bus. For this a resistance (120 Ohm) is interposed between the lines Data B (+) and Data A (–).

22

9. Technical data

9. Technical data

Housing

Dimensions

Panel cut-out

Wall thickness

Fixing

Material

Sealing material

Protection class

Weight

Connection

Display

Digit height

Segment colour

Range of display

Setpoint

Overflow

Underflow

Display time

Input

Pt100 3-/4-wire

Pt100 3-/4-wire

Accuracy

Drift of temperature

Measuring time

Measuring principle

Resolution

96x24x120 mm (BxHxD)

96x24x144 (154) mm (BxHxD) incl. plug-in terminal

92.0

+0.8

x 22.2

+0.3

mm up to 10 mm screw elements

PC polycarbonate, black, UL94V-0

EPDM, 65 Shore, black standard IP65 (front), IP00 (back side) approx. 200 g plug-in terminal; wire cross-section up to 2.5 mm 2

14 mm red (optional green, orange or blue)

-19999 to 99999 one LED per setpoint horizontal bars at the top horizontal bars at the bottom

0.1 to 10.0 seconds

Measuring range

-200.0°C…850.0°C

-328.0°F…1562.0°F

Measuring error

0.1 % of measuring range

0.1 % of measuring range

Digit

±1

±1

100 ppm / K

0.1…10.0 seconds

U/F-conversion

0.1°C or 0.1°F

23

9. Technical data

Output

Analog output

Switching outputs

Relay with change-over contact

Switching cycles

0/4-20 mA / burden ≤500 Ohm, 0-10 VDC / burden ≥10 kOhm, 16 bit

250 VAC / 5 AAC; 30 VDC / 5 ADC

0.5 x 10

5 at contact load

0.5 x 10 6 mechanically

Division according to DIN EN 50178 /

Characteristics according to DIN EN 60255

Interface

Protocol

RS232

RS485

Power supply

Modbus with ASCII or RTU-protocol

9.600 Baud, no parity, 8 Databit, 1 Stopbit, cable length max. 3 m

9.600 Baud, no parity, 8 Databit, 1 Stopbit, cable length max. 1000 m

100-240 VAC 50/60 Hz / DC ±10% (max. 10 VA)

10-40 VDC galv. isolated, 18-30 VAC 50/60 Hz (max. 10 VA)

EEPROM

≥ 100 years / 25°C

Memory

Data life

Ambient conditions

Working temperature

Storing temperature

Wheatering resistance

0°C…50°C

-20°C…80°C relative humidity 0-80% on years average without dew

EMV

CE-sign

Safety standard

EN 61326

Conformity according to directive 2004/108/EG

According to low voltage directive 2006/95/EG

EN 61010; EN 60664-1

24

10. Safety advices

10. Safety advices

Please read the following safety advices and the assembly chapter 2 before installation and keep it for future reference.

Proper use

The M3-3C-device is designed for the evaluation and display of sensor signals.

Danger!

Careless use or improper operation can result in personal injury and/or cause damage to the equipment.

Control of the device

The panel meters are checked before dispatch and sent out in perfect condition. Should there be any visible damage, we recommend close examination of the packaging. Please inform the supplier immediately of any damage.

Installation

The M3-3C-device must be installed by a suitably qualified specialist (e.g. with a qualification in industrial electronics).

Notes on installation

• There must be no magnetic or electric fields in the vicinity of the device, e.g. due to transformers, mobile phones or electrostatic discharge.

• The fuse rating of the supply voltage should not exceed a value of 6A N.B. fuse.

• Do not install inductive consumers (relays, solenoid valves etc.) near the device and

suppress any interference with the aid of RC spark extinguishing combinations or free-wheeling diodes.

• Keep input, output and supply lines separate from one another and do not lay them parallel with each other. Position “go” and “return lines” next to one another. Where possible use twisted pair.

So, you receive best measuring results.

• Screen off and twist sensor lines. Do not lay current-carrying lines in the vicinity. Connect the

screening on one side on a suitable potential equaliser (normally signal ground).

• The device is not suitable for installation in areas where there is a risk of explosion.

• Any electrical connection deviating from the connection diagram can endanger human life and/or can destroy the equipment.

• The terminal area of the devices is part of the service. Here electrostatic discharge needs to be avoided. Attention! High voltages can cause dangerous body currents.

• Galvanic isolated potentials within one complex need to be placed on an appropriate point

(normally earth or machines ground). So, a lower disturbance sensibility against impacted energy can be reached and dangerous potentials, that can occur on long lines or due to faulty wiring, can be avoided.

25

11. Error elimination

11. Error elimination

1.

Error description

The unit permanently indicates overflow.

Measures

• The input has a very high measurement, check the measuring circuit.

• The input is open

2.

The unit permanently shows underflow.

• The input has a very low measurement, check the measuring circuit.

• The input is open

3.

The word "HELP " lights up in the

7-segment display.

4.

5.

6.

Program numbers for parameterising of the input are not accessible.

"Err1" lights up in the 7-segment display

The device does not react as expected.

• The unit has found an error in the configuration memory. Perform a reset on the default values and reconfigure the unit according to your application.

• Programming lock is activated

• Enter correct code

• Please contact the manufacturer if errors of this kind occur.

• If you are not sure that the device has been parameterised before, then follow the steps as written in chapter 6 and set it back to its delivery status.

M3_3CGB.pdf

26 update: 30.03.2015