Kobold TDD Series, TDD-5 Series, TDD-1 Series, TDD-3 Series, TDD-153 Operating Instructions Manual

Operating Instructions

for

Electronic Temperature Switch

Model: TDD

TDD

page 2

TDD K06/0416

1. Contents

1. Contents ........................................................................................................ 2

2. Note .............................................................................................................. 3

3. Instrument Inspection .................................................................................... 3

4. Regulation Use .............................................................................................. 3

5. Operating Principle ........................................................................................ 4

6. Mechanical Connection ................................................................................. 4

7. Electrical Connection .................................................................................... 5

7.1. Connector pin assignment TDD-153, TDD-353 ................................... 5

7.2. Connector pin assignment TDD-553, TDD-753 ................................... 6

8. Commissioning .............................................................................................. 7

8.1. Button function ..................................................................................... 7

9. Adjustments .................................................................................................. 8

9.1. Value setting ........................................................................................ 8

10. Set- up Mode ................................................................................................ 9

10.1. Adjustments for TDD-1... and TDD-3... ................................................ 9

10.2. Adjustments for TDD-5...; TDD-7... .................................................... 10

11. Main Menu Options ..................................................................................... 12

11.1. Switching point ................................................................................... 12

11.2. Hysteresis .......................................................................................... 12

11.3. Window point (Double Point), (only for TDD-1… and TDD-3…) ........ 12

11.4. Switching behaviour ........................................................................... 13

11.5. Filter (only for TDD-1… and TDD-3…)............................................... 14

11.6. Transient response (only for TDD-5… and TDD-7…) ........................ 14

11.7. Contact model .................................................................................... 15

11.8. Change Code ..................................................................................... 15

12. Maintenance ............................................................................................... 15

13. Technical Information .................................................................................. 16

14. Order Codes ............................................................................................... 17

15. Dimensions ................................................................................................. 18

16.

Declaration of Conformance..................................................................… .. 19

Manufactured and sold by:

Kobold Messring GmbH

Nordring 22-24

D-65719 Hofheim

Tel.: [phone]

Fax: [phone]

E-Mail: [e-mail]

Internet: www.kobold.com

TDD

TDD K06/0416

page 3

2. Note

Please read these operating instructions before unpacking and putting the unit
into operation. Follow the instructions precisely as described herein.
The devices are only to be used, maintained and serviced by persons familiar
with these operating instructions and in accordance with local regulations
applying to Health & Safety and prevention of accidents.

When used in machines, the measuring unit should be used only when
the machines fulfil the EC-machine guidelines.

3. Instrument Inspection

Instruments are inspected before shipping and sent out in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of
the delivery packaging. In case of damage, please inform your parcel service /
forwarding agent immediately, since they are responsible for damages during
transit.

Scope of delivery:

The standard delivery includes:

• Electronic Temperature Switch model: TDD

• Operating Instructions

4. Regulation Use

Any use of the Electronic Temperature Switch, model: TDD, which exceeds the
manufacturer’s specification may invalidate its warranty. Therefore any resulting
damage is not the responsibility of the manufacturer. The user assumes all risk
for such usage.

TDD

page 4

TDD K06/0416

5. Operating Principle

The KOBOLD Model TDD temperature sensor is used for economical measuring
and monitoring of temperature. It can be used for any application in which
temperatures must be monitored with great accuracy.

The sensor element is a semiconductor that outputs a digital signal to the
electronic processor in 0,5 °C steps. The measured values are shown on a 3-digit
LED display. The switch setpoint can be adjusted as required within the
measuring range.

6. Mechanical Connection

Before installation:

• Please check, if the switching temperature and switching function of TDD
device is in agreement with your system requirements (specifications).

• Ensure that the maximum operating pressure or temperature for the device is
not exceeded.

Installation:

• This device is installed in a matching sleeve. Use sealing tape (i.e. Teflon tape)
or a flat gasket to seal the threaded connections.

• The mounting position should be selected so that the sensor tip is always
immersed in the liquid being monitored, thus ensuring optimal heat exchange
between the liquid and the temperature sensor.

• Note that deposits that build up on the sensor tip or dirty liquids can have an
insulating effect and cause invalid measurements.

• Whenever possible, after the mechanical installation is complete, the joint at
the threaded connector and the supply piping should be checked to ensure
that it is tight and does not leak.

TDD

TDD K06/0416

page 5

7. Electrical Connection

Attention! Make sure that the supply voltage of your system
correspond with the voltage of the measuring unit specified on the
nameplate.

• Make sure that the electrical supply lines are de-energised.

• Make the connection using the M 12x1 connector socket, as shown in the

accompanying diagram.

• Appropriate connectors with different cable lengths are optionally available.

Attention! Incorrect wiring will lead to damage of the unit’s
electronics.

7.1. Connector pin assignment TDD-153, TDD-353

Option:
plug with cable ZUB-KAB-12K002

Plug

TDD

page 6

TDD K06/0416

7.2. Connector pin assignment TDD-553, TDD-753

TDD-...553 TDD-...753

PNP-Output 1 NPN-Output 1

+24 VDC +24 VDC

0 V / GND 0 V / GND

PNP-Output 2 NPN-Output 2

0 V / GND 0 V / GND

Plu

g

PNP connection scheme

Plug

NPN Connection Scheme

Plug

TDD

TDD K06/0416

page 7

3 sec

Normal Mode

Anytime:

or 20 sec

Don’t press any key

8. Commissioning

Attention! Please take note that during operation at high
temperatures, the surface and the elements within the unit may
become very hot!

Connect the temperature switch according to the figure shown on the previous
page, and supply the device with the specified voltage.

8.1. Button function

In the normal mode (measurement mode)

: Press 3 sec set-up mode

: Switch point/display window point

: Switch point/display hysteresis

In adjustment mode

: Next level

: Change values

TDD-1

TDD-5 and TDD-7

TDD

page 8

TDD K06/0416

9. Adjustments

The following values can be changed at the temperature transmitter:

Display range Factory pre-set

Switching point (SPo, set-point)

-199...999 50.0

Hysteresis (HYS)

-199...0 000

Window point (double)

Switching point ...999 --- (inactive)

Filter (Filt)

1/2/4/8/16/32/64 1
Contact-Type (Con) Contact (N/O) or (N/C) N/O Contact
Code (CCo, change code)

000...999 000

9.1. Value setting

From main menu option (e.g. Switching point, "SPo"), press "" key in order to
go to Parameter Adjustment. The following structure shows the sequence of
steps required to change a single parameter.

[From main menu option]

1. Set position

2. Set position

3. Set position

Adjust decimal point

Save selected value
or key-in new value

[to next main menu option]

Save

TDD

TDD K06/0416

page 9

10. Set- up Mode

10.1. Adjustments for TDD-1... and TDD-3...

3 sec

Normal Mode

Anytime:

or 20 sec

Don’t press any key

: Next level

: Change value

Contact type

N/O contact
N/C contact

Save

Off-delay

Setting parameter

Setting parameter

On-delay

Duo-point

Hysteresis

Switch point

Code input

3 sec

Code=

Setting parameter

Code change

Setting parameter

Setting parameter

Setting parameter

Setting parameter

TDD

page 10

TDD K06/0416

10.2. Adjustments for TDD-5...; TDD-7...

Setting parameter

On-delay 2

On-delay 1

Setting parameter

Setting parameter

Hysteresis 2

Hysteresis 1

Switch pt. 2

Setting parameter

Switch pt. 1

Code input

3 sec

Code=

Setting parameter

TDD

TDD K06/0416

page 11

Change code

Setting parameter

Contact type 2

N.O. contact
N.C. contact

Save

Contact type 1

N.O. contact
N.C. contact

Save

Off-delay 2

Off-delay 1

Setting parameter

TDD

page 12

TDD K06/0416

11. Main Menu Options

11.1. Switching point

In menu option "SP0", “SP1” and “SP2” the switching point is entered. A setting
value between -199 and 999 can be selected. This value can also include a
decimal point. The decimal point can be set at two points (e.g. 10.0 or 100). If the
measuring value is the set switch point, the temperature switch is activated and is
signalised by a lightning LED.
If the hysteresis is zero and the window point is inactive, the temperature switch
will be reacted if the temperature is below the switch point.

11.2. Hysteresis

After the setting of switching point, the hysteresis can be entered as a negative
value in the "HYS", “HY1” and “HY2” menu. The standard hysteresis value is
zero. In operation condition this can lead to ambiguous switching behaviour if the
reading fluctuates around the switching point or window point. Aid can be given
here by increasing the hysteresis. The hysteresis relates to the switching point
and the window point (switching point minus hysteresis; window point plus
hysteresis).
Example: Switching point 100 °C; Hysteresis: -2.5 °C

The temperature switch switches when 100 °C is exceeded and
switches back when the reading drops below 97.5 °C.

11.3. Window point (Double Point), (only for TDD-1… and TDD-3…)

As well as the switching point, it is also to define a "duo" (duo-point), the window
point. This must be higher than the switching point. Using the window point and
the switching point it is possible to monitor the measurement value in a certain
range. The switching point limits the measurement range to smaller values and
the window point to larger values.

If the window point (duo-point) is less than or equal to the switching
point, an error report (Er4) will be indicated on the display and its
value is deleted and its function is invalid (in the case that the
window point and switching point out of adjustment).

The value is set in the same way as the switching point.
The window point is needed for process, monitoring of a certain temperature
range.

TDD

TDD K06/0416

page 13

Example: Switching point: 50 °C; window point: 70 °C; hysteresis: -2 °C

The temperature contact switches when 50 °C is exceeded.
If the temperature remain between 48 °C (50-2) and 72 °C (70+2), the contact will
also remain in active switching condition (LED on). If it exceeds 72 °C or drops
below 48 °C the temperature switch switches back.

11.4. Switching behaviour

The following diagram clarifies the switching behaviour of the temperature switch.
The contact closes (contact type: no) when it drops below the switching point or
the window point. It only opens again if the window point plus hysteresis is
exceeded or if it drops below the switching point minus hysteresis. An LED
indicates the switching condition of the switching point.

time/ t

Display
bar (°C)

Switching pt.

Hysteresis

LED ON

time / t

Display
bar (°C)

Switching pt.

Hysteresis

LED ON

Hysteresis

Window point

LED ON

TDD

page 14

TDD K06/0416

11.5. Filter (only for TDD-1… and TDD-3…)

The filter function "Filt" makes the measured value for switching purposes the
running average from the measured value samples. The following values can be
adjusted (see section 9. Adjustments):

1 / 2 / 4 / 8 / 16 / 32 / 64 samples

The filter value determines the dynamic behaviour of the display value. The larger
the Filt value, the more dampened the display response. With the adjustment of
the filter value " 1 " the filter is switched off, i.e. the display value is equal to the
unfiltered measured value.

The integrated overshoot detector reacts to a step change of approx. 6.25% of
the measurement range (full scale). During a detected measured value overshoot
of >6.25%, the instantaneous measured value is transferred directly to the display
without filtering.

11.6. Transient response (only for TDD-5… and TDD-7…)

Using the menu items “dS1”, “dS2”, “dr1” and “dr2” it is possible to set the
delay set and the delay reset.

The delay set causes delayed switching of the output if the switching threshold is
exceeded.

The delay reset causes a delayed resetting of the output if it drops below the
switching threshold – hysteresis.

The setting range for both parameters is 0.0 ... 99.5 seconds. The step rate is 0.5
seconds.

With these two functions it is also possible to suppress temporary disturbances.

TDD

TDD K06/0416

page 15

11.7. Contact model

In menu option "Con", “Co1” and “Co2” the transistor switching output function
is set. The switching function changes from

N/O contact
to
N/C contact, and back.

N/O contact means: Contact closes on exceeding the switching point.
N/C contact means: Contact opens on exceeding the switching point.

11.8. Change Code

The code change "CCo" protects the device against unauthorised changes in
adjusted device parameters. If the code is different from 000, the user must input
the adjusted code in order to perform any programming changes.

12. Maintenance

This device is maintenance-free when properly installed. However, deposits from
dirty liquids can lead to invalid measured values.

TDD

page 16

TDD K06/0416

13. Technical Information

Housing cover: St. steel 1.4305
Housing: St. steel 1.4404 (compact version)

St. steel 1.4305 (separate version)

Connection compact version:
G 1/2 or G 3/4 male thread

St. steel 1.4404
Option: 1/2 NPT or 3/4 NPT

Connection separate version:

Sensor: 100 mm, 6 mm; st. st. 1.4404
Cable: 2,5 m PTFE with M 12x1 plug
Housing: M 25x1,5 with counter nut

Principle of measurement: Semiconductor
Display: TDD-1,-3,-5,-7: 3-digit LED, digit-height: 7mm;
Resolution: TDD-1,-3,-5,-7: 0.5 °C to 100 °C

1 °C up to 100 °C
Max. temperature:
of measured medium: -20...+120 °C (compact version)

-50...+125 °C (separate version)
Max. ambient temp.: -20...+50 °C
Max. pressure: 80 bar
Power supply: 24VDC ± 20%
Current intake: TDD-1,-3,-5,-7: approx. 50 mA

(without switching output);
(without switching output)

Electrical connection: Plug M12x1 or

PVC-cable (cable t

max

: 90 °C)

Switching output: Semiconductor

PNP or NPN (factory set),

max. 300 mA, short-circuit proof
Contact function: N/O / N/C, window, adjustable
Switch. point adjustment: programmable
Switching display: programmable
Switching state display: 1 (2) LED
Hysteresis: programmable

ON/ OFF- switching delay: 0.5....99.5 (separately adjustable)

(only TDD-5, TDD-7)
Measuring cycle: 0.5 s
Accuracy (sensor): ± 0.5 °C (between –10...+85 °C)

± 2 °C (between +85...125 °C)

± 2 °C (between -50...-10 °C)

Protection cat: IP 65

TDD

TDD K06/0416

page 17

14. Order Codes

(Example: TDD-153 R4H2 00) Please specify cable length with order!

Electrical

Connection

Model

Version

Sensor
length*

Switching

output

1x PNP

Switching

output

1x NPN

Switching

output

2x NPN

Switching

output

2x NPN

Plug

M12x1

TDD-153 TDD-353 TDD-553 TDD-753

R4H2 =G 1/2; -20...+120°C
R5H2 =G 3/4; -20...+120°C
N4H2 =1/2 NPT; -

20...+120°C
N5H2 =3/4 NPT; -

20...+120°C
D6H3 =separate version;
smooth sensor; -50...+125°C

00 =short
10 =100 mm
20 =200 mm

*Separate version only with 100 mm sensor; maximum length at NPT-threads is 184 mm instead 200 mm

Accessories: Electrical connection

Description Model

M12x1 box with terminal

ZUB-KAB-12D500

M12x1 box with 2 m cable

ZUB-KAB-12K002

M12x1 box with quickon-plug

ZUB-KAB-12Q000

TDD

page 18

TDD K06/0416

15. Dimensions

Compact version short

Compact version long Separate version

TDD

TDD K06/0416

page 19

16.

Declaration of Conformance

We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole
responsibility that the product:

Electronic Temperature Switch
Model: TDD-1…, TDD-3…, TDD-5… and TDD-7…

to which this declaration relates is in conformity with the standards noted below:

EN 61326-1:2013

Electrical equipment for

measurement, control and laboratory use -

EMC requirements

- Part 1: General requirements

EN 61010-1:2011

Safety requirements for electrical equipment for measurement, control and
laboratory use -

Part 1: General requirements

Also the following EEC guidelines are fulfilled:

2014/30/EU Electromagnetic Compability

2011/65/EU RoHS (category 9) industrial monitoring and control instruments,

compliant, no CE-marking for the transitional period until 2017

Hofheim, 27. Apr. 2016

H. Peters M. Wenzel

General Manager Proxy Holder