WIKA T24.10 Manuale utente

Temperatur - Transmitter

Typ T24.10

Operating Instructions

Betriebsanleitung

Temperature Transmitter Model T24.10

Temperatur-Transmitter Typ T24.10

2WIKA Operating instructions temperature transmitter Model T24.10

2370242.06 02/2006 GB/D/E

Operating instructions Model T24.10 Page 1-24

Betriebsanleitung Typ T24.10 Seite 25-45

3WIKA Operating instructions temperature transmitter Model T24.10

2370242.06 02/2006 GB/D/E

Contents

1. General information 4

2. Safety instructions 4

3. Intended use 5

4. Mounting 7

5. Electrical connections 8

6. Notes for mounting and operating in

hazardous areas (Europe) 10

7. Further country-specific approvals 14

8. Notes for application of T24 in the

shipbuilding industry 14

9. Configuration 16

10. Connection of the programming unit

PU348 18

11. T24 configuration software WIKA_TT 19

12. Troubleshooting 21

13. Maintenance 22

14. Disposal 22

15. FM installation drawing 23

16. Declaration of conformity 24

4WIKA Operating instructions temperature transmitter Model T24.10

2370242.06 02/2006 GB/D/E

1. General information / 2. Safety instructions

1. General information

WIKA temperature transmitters are carefully designed and

manufactured using state-of-the-art technology. Every component

undergoes strict quality inspection before assembly and each

instrument is fully tested prior to shipment.

Note

Please inspect the equipment for possible damage during

transportation. Should there be any obvious damage, please inform

the transport company and WIKA without delay.

The following installation and operating instructions have been

compiled by us with great care but it is not feasible to take all

possible applications into consideration.

If questions remain regarding a specific application, you can obtain

further information (data sheets, instructions, etc.) via our Internet

address (www.wika.de / www.wika.com / download) or contact

WIKA for additional technical support. (see section 13, Service)

2. Safety instructions

When mounting, starting and operating these

transmitters it is important to observe the respective

national safety precautions and regulations in effect

(e.g. VDE 100).

Serious injuries and/or damage can occur should the relevant

regulations not be observed. Only qualified persons authorised by

the plant manager are permitted to install and service these

transmitters.

When working on the terminals of the T24.10 while the process is

running it is recommended to take appropriate measures to avoid

5WIKA Operating instructions temperature transmitter Model T24.10

2370242.06 02/2006 GB/D/E

any electrostatic discharge, because discharges may result in

temporary falsifications of the measured value. When mounting a

T24.10 transmitter into a field case separately from the temperature

sensor (transmitter mounted outside of the connection head of a

thermometer) it is recommended to use connection cables with

shielding between sensor and transmitter and to connect the

shielding to earth on one side.

If the instrument should become damaged or unsafe for operation, it

should be removed from service and marked to prevent it from being

used again accidentally.

We draw your attention to the following which must be observed for

transmitters with Ex protection:

1. Observe the applicable regulations for the use of Ex-class

instruments (e.g.: EN 50 014, EN 50 020, EN 50 021, EN 50 284).

2. Observe the notes for mounting and operating in hazardous area

described in section 6.

3. It is forbidden to use a transmitter that is damaged externally.

4. Repairs may be performed by the manufacturer only. The

instrument must not be interfered with or changed in any way.

5. During configuration the transmitter, the programming unit

PU348 and PC must not be located in the hazardous area

3. Intended use

The instrument is a universal, configurable transmitter for resistance

thermometers (RTD) and resistance and calibration sources.

The transmitter meets the requirements on

Texplosion protection (depending on the version)

Tsignalling at the analogue output according to NAMUR

recommendation NE 43

Before initial operation check the suitability for the intended

application.

2. Safety instructions / 3. Intended use

6WIKA Operating instructions temperature transmitter Model T24.10

2370242.06 02/2006 GB/D/E

3.1 Functional description

The analogue temperature transmitter serves for the conversion of a

resistance value into a proportional current signal (4-20 mA). The

analogue signal is transmitted to a series-connected logic unit, e.g. an

SPS or an alarm contact, where it is monitored for upper deviations

from a maximum value or lower deviations from a minimum value.

For failure monitoring the logic unit has to be capable of recognising

HI alarms (> 21 mA) as well as LO alarms (< 3.6 mA). The electrical

components of the transmitter are arranged in a plastic case and

completely encapsulated. Due to the internal analogue signal proces-

sing these transmitters can also be used in multiplexed systems.

The transmitters described in these operating instructions feature an

internal conductive connection between the sensor input and the

analogue output. There must not be any conductive connection (e.g.

via earth) between the connected sensor and the analogue output!

3. Intended use

3.2 Ambient conditions

T24.10.***

Ambient/

storage temperature

Standard range: -40 ... +85 °C

Extended range: -40 ... +105 °C 1)

Climate class: Cx (-40 … +85 °C, 5 % to 95 % rel. air humidity)

DIN EN 60 654-1

max. permissible 100 % relative humidity (unlimited with insulated

humidity sensor connection wires), moisture condensation

permissible DIN IEC 68-2-30 Var. 2

Vibration 10 … 2000 Hz 10 g DIN IEC 68-2-6

Shock DIN IEC 68-2-27

Salt mist DIN IEC 68-2-11

Case material plastic, PBT, glass fibre reinforced

Case ingress protection IP 66 / IP 67 IEC 529 / EN 60 529

Terminals ingress prot. IP 00 IEC 529 / EN 60 529

1) without explosion protection

For further technical details please refer to WIKA data sheet TE 24.01

7WIKA Operating instructions temperature transmitter Model T24.10

2370242.06 02/2006 GB/D/E

4.1 Mounting on the measuring insert

Mount the transmitter on the circular plate of the measuring insert

using two countersunk head M3 screws per DIN EN ISO 2009.

Appropriate threaded inserts have been press-fitted in the underside

of the case. Assuming the countersinking is carried out correctly, the

permissible screw length can be calculated as follows:

Circular plate

lmax. = s + 4 mm

with

l max. Length of screw in mm

s Thickness of circular

plate in mm

Check the screw length before affixing the transmitter to the

measuring insert: stick the screw in the circular plate and verify

additional length of 4 mm!

Do not exceed the maximum permissible

screw length! The transmitter will be damaged if the

screws are screwed further than 4 mm into the bottom

of the transmitter.

2476890.A1

4. Mounting

3173765.B

4. Mounting

The transmitters for head mounting are designed to be mounted on

a measuring insert in a DIN connection head, form B. The connection

wires of the measuring insert must be approx. 40 mm long and

insulated.

8WIKA Operating instructions temperature transmitter Model T24.10

2370242.06 02/2006 GB/D/E

Please observe the safety-relevant maximum values

for the connection of the voltage supply and the

sensors specified in sections 6.3.1 and 6.3.2.

5.1 General

For any work on the transmitters (e.g. assembly / disassembly)

it is recommended to take measures, which prevent electrostatic

discharge to the terminals.

5. Electrical connections

Input 4 ... 20 mA - loop

2476890.B1

4. Mounting / 5. Electrical connections

Recommended tools for terminal screws:

Pozidriv screw driver size 2 (ISO 8764).

max. tightening torque 0.4 Nm

4.2 Mounting in connection head

Insert the measuring insert with the mounted transmitter in the protec-

tive sheath and affix in the connecting head using screws in pressure

springs.

9WIKA Operating instructions temperature transmitter Model T24.10

2370242.06 02/2006 GB/D/E

5. Electrical connections

5.2 Power supply / 4 ... 20 mA-loop

The T24 is a temperature transmitter in 2-wire design. Depending on

the version, it can be supplied with different types of power supply.

Connect the plus pole of the power supply to the terminal marked

with j, the minus pole to the power supply marked with i. In the

case of flexible leads we recommend the use of crimped connector

sleeves.

The T24 temperature transmitter requires a minimum terminal

voltage of 10 V DC. The load must not be too high, because

otherwise the terminal voltage at the transmitter will be too low in the

case of relatively high currents.

The following diagram shows the maximum permissible load in

dependence on the supply voltage.

Load diagram

load

in Ω

voltage

in V EEx ia EEx nL/nA

5.3 Connect sensor

It is possible to connect an RTD resistance thermometer (e.g. to DIN

EN 60 751 or similar) in a 2- or 3-wire connection method. Configure

the input of the transmitter in accordance with the actual method of

10 WIKA Operating instructions temperature transmitter Model T24.10

2370242.06 02/2006 GB/D/E

5. Electrical connections / 6. Notes for mounting ...

connection used.

Otherwise you will not fully exploit the possibilities of connection

lead compensation and, as a result, possibly cause additional

measuring errors (see section 9. Configuration).

If 2 wire connecting method is used: Set a jumper between the input

terminals @and A. Otherwise the transmitter signals a sensor

burnout and sets the output signal < 3.6 mA or > 21.0 mA,

dependent on configuration.

Head Explosion Approval No. Type of ignition

mounting protection protection

T24.10.**2 II 1G EEx ia IIB/IIC T4/T5/T6 intrinsically safe

DMT 02 ATEX E 025 X equipment

T24.10.**9 II 3G EEx nL/nA IIC T4/T5/T6 X energy-limited

equipment and

non-incendive

equipment

6. Notes for mounting and operating in hazardous areas (Europe)

Use only such transmitters in a hazardous area that have the

corresponding approval for this hazardous area. The approval is

noted on the product label.

6.1 Type overview of the European approvals

6.2 Special conditions for safe use

T24.10.**2: Transmitters in a hazardous area are supplied only with

associated intrinsically safe apparatus that are approved for this

hazardous area. These transmitters must be mounted in a case that

must at least correspond to ingress protection IP 20 according to

EN 60 529 / IEC 529.

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