Jumo 60.3035 Surface-mounting single or twin thermostat User Manual download pdf (Page 2)

Permissible loading on the pocket

20, 21, 30, 32, 40, 42 and 45 pockets

Steel pocket

Materials:

Tube

:St 35.8 I

Screw-in nipple up to

300°C: 1.0038

Welding nipple

Steel

1.5415

Permissible incident flow velocity

The values below refer to the maximum loading on the probe mounting

concerned. The actual maximum sealable pressure depends on the mounting

conditions and may possibly be lower.

Temperature Tube diameter "D"

8 x 0.75 mm

or conical

10 x 0.75 mm 15 x 0.75 mm

maximum permissible pressure

100

C 89bar 72bar 48bar

150

C 83bar 67bar 45bar

200

C 78bar 63bar 42bar

300

C 59bar 47bar 32bar

350

C 50bar 40bar 27bar

Temperature: +200

Heat carrier: air ( 1 ), water, oil ( 2 )

Tube diameter "D". 08mm

10 mm

. . . . . . . . . . . . . .

15 mm

Permissible incident flow

velocity (m/sec)

at maximum permitted

pressure loading and

different immersion

tube lengths ( S ).

( 1 ) air

( 2 ) water, oil

( S ) immersion tube length

Pocket

- permissible incident flow velocity: on request -

The values below refer to the maximum loading on the probe mounting

concerned. The actual maximum sealable pressure depends on the mounting

conditions and may possibly be lower.

Immersion tube length

200 mm:

Material: steel

Temperature: +200

Heat carrier: air ( 1 ), water, oil ( 2 )

Tube diameter "D". 08mm

10 mm

. . . . . . . . . . . . . .

15 mm

Permissible incident flow

velocity (m/sec)

at maximum permitted

pressure loading and

different immersion

tube temperatures ( t ).

( 1 ) air

( 2 ) water, oil

( t ) temperature

Stainless steel

Tube and nipple: X 6 CrNiMoTl 17 122

Temperature Tube diameter "D"

8x0.75mm

or conical

10 x 0.75 mm 15 x 0.75 mm

maximum permissible pressure

100

C92bar74bar50bar

150

C88bar71bar48bar

200

C83bar67bar45bar

300

C72bar58bar39bar

400

C67bar54bar36bar

Brass

Tube and nipple: CuZn

Temperature Tube diameter "D"

8 x 0.75 mm 10 x 0.75 mm 15 x 0.75 mm

maximum permissible pressure

100

C50bar40bar27bar

150

C48bar39bar26bar

Probe mountings 50, 52 and 54

(probe in direct contact with medium)

Process connections

10, 15, 21, 31, 60 and 65

must only be used in unpressurized

media.

Mounting the probe

Nipple material

Copper

(CuZn)

Steel

(St)

Stainless steel

(CrNi)

Max. temperature

200°C 300°C 400°C

Probe material Ø mm Device function

TW STB, STW (STB)

Cu-DHP 04 06bar 2bar

05 05bar

06 04bar

07 03bar

08 03bar

09 03bar

10 03bar

1.4571; St 35 04 - 10 10 bar 2 bar

The temperature probe ( 2 ) must be fully immersed in the medium,

otherwise there will be appreciable variations in the switching point.

(1) Clamp

(

) Temperature probe

(3) Capillary

(4) Pocket

(5) Spring clip

In the "20" and "22" probe

mountings of thermostats with

capillary, the temperature probe is

held in position by sliding a clamping

clip over the capillary and clamping it

with a screw in the enlarged open

end of the pocket.

With "50, 52, 54, 40, 41, 60 and 65"

probe mountings, the probe is held in

position by the fitting attached to the

capillary at the factory.

(1)

( 2 )

(1)

(3)

( 2 )

(4)

(5)

5. Installation

Regulations and notes

Electrical connection

Cu capillary tube with PE function

■

The electrical connection must only be carried out by qualified personnel.

■

The choice of cable, the installation and the electrical connection must

conform to the requirements of VDE 0100 “Regulations on the Installation of

Power Circuits with Nominal Voltages below 1000 V” and the appropriate

local regulations.

■

If contact with live parts is possible when working on the device, it must be

completely disconnected from the electrical supply.

■

Ground the instrument to the protective earth at the PE terminal. The cross-

section of this cable must be at least the same as that of the supply cables.

Wire the grounding conductors in a star configuration to a common earth

point that is connected to the PE conductor of the electrical supply. Do not

loop the grounding cables, that is, do not run them from one instrument to

another.

■

Apart from faulty installation, incorrect settings on the thermostat may also

adversely affect the proper functioning of the subsequent process or cause

other damage. It should only be possible for qualified personnel to make

these settings. Please observe the relevant safety regulations for such

matters.

The instrument complies to Protection

Class

Remove safety protection.

Pass the connection cable

(cable diameter 5 to 10 mm)

through the compression gland

(A)

Screw connection up to 2.5 mm

conductor cross-section.

Make the connection to the terminals

( 1, 2 and 4 ), as shown in the relevant

connection diagram.

Connect the protective earth conductor

to terminal

"PE" .

Replace the safety protection.

The reset button

(B)

on the STB must be free to move.

The connection is suitable for fixed wiring. Cable entry is without fixed strain

relief. Attachment type "X" (no special tools).

With CrNi capillary tubes it is the user's responsibility to provide the requisite

protective measures against electric shock.

(A)

(B)

Connection diagrams

Single thermostats

Twin thermostat

TW, STW (STB)

with changeover contact

STB

with break contact and lock-out

Systems

and

with changeover contact

switching function: TW,

STW

System

with changeover contact

switching function: TW,

STW

System

II:

with break contact and

lock-out switching

function: STB

Systems

and

II:

with break contact and

lock-out

switching function: STB

Closing the housing

Check that the plastic seal ( 3 )

in the housing base ( 2 )

is correctly seated.

Place the top of the housing ( 2 )

onto the base ( 4 )

Tighten the cover screws ( 1 ).

( 1 ) ( 1 )

( 2 )

( 4 )

( 3 )

➞

7. Technical data

Permissible ambient temperature in operation

Permissible probe temperature:

max. end of scale +15%

Permissible storage temperature:

max. 50°C, min. -50°C

Switching point accuracy:

Switching point accuracy

in % of the control / limit value range

TW: in the upper third of the scale ± 1.5%,

at scale beginning ± 6%

STB, STW (STB): in the upper third of the scale +0/-5%,

at scale beginning +0/-10%

Mode of operation

to EN 60730-1, EN 60730-2-9 and EN 14597

STW (STB)

STB

2BL

2BKLNP

2BFHKLNPV

Capillary Thermostat head At end of scale

TW STW (STB), STB

max. +80

C+80

min. -40

C-40

C +80

C< 200

-20

C-20

C +80

≥

200

≤

350

-40

C-40

C +80

C> 350

≤

500

Mean ambient temperature effect

as % of scale range, relative to limit value. If the ambient temperature at the

thermostat head housing and / or the capillary deviates from the calibration ambient

temperature value of +22

C in, this shifts the switching point.

Higher ambient temperature = lower switching point

Lower ambient temperature = higher switching point

Maximum permissible contact rating

(additional info to details on nameplate)

230 V AC +10%, 10(2) A, cos

= 1(0.6)

230 V DC +10%, 0.25 A or

230 V AC +10%, 6(1.2) A, cos

= 1(0.6)

for gold-plated microswitch, code /au

24 V AC/DC, 0.1 A

Contact reliability

To ensure maximum switching reliability, we recommend a minimum loading of:

24 V AC/DC, 20 mA for silver contacts (standard)

10 V AC/DC, 10 mA for gold-plated contacts (code /au)

Rated surge voltage

2500 V

Overvoltage category II

For required fusing, see maximum switching current

Operating medium

Wa t e r, oi l, air, su pe rhe at ed st eam

Enclosure protection

EN 60 529 - IP 65, use under normal conditions

Surface-mounting thermostats with end of scale

< +200

≥

+200

≤

+350

TW STB/STW (STB) TW STB/STW (STB)

Effect on the thermostat head

0.08% per °C 0.17% per °C 0.06% per °C 0.13% per °C

Effect on capillary per meter

0.047 % per °C 0.054 % per °C 0.09 % per °C 0.11 % per °C

Surface-mounting thermostats with end of scale

≥

+350

≤

+500

TW STB/STW (STB)

Effect on the thermostat head

0.14% per °C 0.12% per °C

Effect on capillary per meter

0.04 % per °C 0.03 % per °C

Time constant t

0.632

in water in oil in air / superheated

steam

≤

45 s

≤

60 s

≤

120 s

Approved temperature probes, screw-connec-

tions and sheaths

see data sheet 606710

Temperature probes

10 and 15

Screw-connections

50, 52, 54, 60 and 65

Sheaths

20, 21, 22, 30, 31, 32, 40, 41, 42, 45 and 46

6. Setpoint and limit setting

Resetting the STB

Once the temperature has fallen below the set limit (safe temperature limit) by about

10% of the scale range, the microswitch can be reset.

Self-monitoring

Response to a fracture of the measuring system

Response to low temperature

Using the STW (STB) as an STB

TW, STW (STB) and STB

Open the housing

Use a screwdriver

to set the limit on the

setpoint adjuster ( 5 ).

. Close the housing

(1) upper stop

( 2 ) setpoint pointer

( 3 ) lower stop

( 4 ) scale graduation

( 5 ) setpoint adjuster

Open the housing

Press the reset button

(B)

until the microswitch is

reset.

Close the housing

With the STB and STW (STB), a fracture of the measuring system (leaking)

causes the circuit to stay open permanently. With the STB, the microswitch is

also locked.

With the STW (STB) and STB, if the probe temperature falls below the

minimum value of -20°C, the circuit opens. Once the probe temperature has

risen above the minimum value, the STB must be reset manually .

With the STW, reset is automatic.

The required lock-out facility must be ensured by the subsequent circuit. This

circuit must comply with VDE 0116.

(B)

1 2

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Jumo 60.3035 Surface-mounting single or twin thermostat User Manual Page 2

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