JUMO 603026 User Manual

JUMO GmbH & Co. KG

Delivery address: Mackenrodtstraße 14

36039 Fulda, Germany

Postal address:

36035 Fulda, Germany
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumo.net

JUMO Instrument Co. Ltd.

JUMO House
Temple Bank, Riverway
Harlow, Essex CM20 2DY, UK
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumo.co.uk

JUMO Process Control, Inc.

6733 Myers Road
East Syracuse, NY 13057, USA
Phone: [phone]

1-800-554-5866
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumousa.com

Surface-mounting double thermostat

ATH type series

Particularities

• Fluid expansion

• Microswitch

• Self-monitoring (STB/STW)

• Safety cut-out (STB/STW)

• 2 separate measuring and switching systems

Brief description

Thermostats are used to control and monitor thermal processes. Surface-mounting double
thermostats of the ATH type series consist of two separate measuring and switching systems.

The devices are available as temperature controllers TR, temperature monitors TW, safety tem­perature monitors STW (STB) and safety temperature limiters STB. In the event of a malfunction,
the STB switches the monitored machine line to an operationally safe status.

Surface-mounting double thermostats operate according to the fluid expansion principle, a mi­croswitch serves as an electrical switching element.

Data Sheet 603026

ATHs-12

Page 1/10

Switching function

Temperature controller TR and temperature monitor TW

If the temperature exceeds the set point value set on the temperature probe, the microswitch
will be tripped by the transmission mechanics and the current circuit opened or closed. The mi­croswitch is reset to its original status once the set point value set is gone below (by the hys­teresis).

Restart lock for the safety temperature limiter

If the temperature exceeds the limit value set on the temperature probe, the current circuit is
opened and the microswitch mechanically locked.

The microswitch can be manually unlocked, once the dangerous temperature drops by approx.
10 % of the scale range (approx. 15% with a limit value setting >+350 °C).

Use of the safety temperature monitor STW as a safety temperature limiter STB

Ensure that the switching circuit downstream of the thermostat complies to DIN EN 14597 and
VDE 0116.

Self-monitoring for the safety temperature limiter STB

safety temperature monitor

and

If the measuring system is destroyed, i.e. if the expansion fluid escapes, the pressure in the di­aphragm of the STB and STW (STB) drops and permanently opens the current circuit. Unlocking
is no longer possible. If the probe has cooled down to a temperature below approx. -20 °C, the
current circuit is opened, when the temperature rises above approx. -20 °C, the STB must be
unlocked manually first using the re-starting button. The STW (STB) automatically restarts.

STW (STB)

Approvals/approval marks (see Technical Data)

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STB

ATHf-170

The declarations of conformity

can be found in the internet under:

or they can be sent on request.

www.jumo.net

➾ Products

Data Sheet 603026

JUMO GmbH & Co. KG

Delivery address: Mackenrodtstraße 14

36039 Fulda, Germany

Postal address:

36035 Fulda, Germany
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumo.net

JUMO Instrument Co. Ltd.

JUMO House
Temple Bank, Riverway
Harlow, Essex CM20 2DY, UK
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumo.co.uk

JUMO Process Control, Inc.

6733 Myers Road
East Syracuse, NY 13057, USA
Phone: [phone]

1-800-554-5866
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumousa.com

Technical Data

Control ranges and temperature probes

Switching function Control /

TR, TW -20 to +050

STW and STB +30 to +110

TR, TW +20 to +400

STW and STB +20 to +400

limit value ranges

in °C

-10 to +040

+00to+050
+00 to +100

+20 to +090
+30 to +110
+20 to +120
+60 to +130
+20 to +150
+50 to +200
+50 to +250
+50 to +300
+50 to +350

+60 to +130
+20 to +150
+50 to +250
+50 to +300

+20 to +500
+20 to +500

+20 to +500
+20 to +500

fluid-filled

max. admissible

probe temperature

in °C

060
050
060

125
115
135
140
150
175
230
290
345
405
135
150
175
290
345

gas-filled

460
575
575
460
575
575

maximum

capillary length in

mm

5000

5000

1000
2000
4000
1000
2000
4000

Page 2/10

Probe length, dimension "L" in mm

Probe ø "d" = 6 mm (Standard)

141
185
185
107
138
125
106
135

088

101

073
063
053

108
116

077
064
055

278
148
202
176
127
202

Capillary and temperature probe

Type Scale limit value Capillary Temperature probe Remarks

ATH.-. . up to 200 °C Copper (Cu)

ø 1.5mm

Material No. Cu-DHP

up to 350 °C Copper (Cu)

ø 1.5mm

Material No. Cu-DHP

up to 500 °C Stainless steel (CrNi)

ø 1.5mm

Copper (Cu)

Material No. Cu-DHP

hard soldered

Stainless steel (CrNi)

Material No. 1.4571

hard soldered

Stainless steel (CrNi)

Material No. 1.4571

–

–

–

welded

up to 350 °C Stainless steel (CrNi)

ø 1.5mm

Stainless steel (CrNi)

Material No. 1.4571

against surcharge

welded
Capillary length 1000 mm, max. 5000 mm as standard
minimum bending ra-

dius of the capillary

5mm

Electrical data

Switching element TR, TW, STW (STB) STB (-70) STB (-70/574)

Microswitch with change-over contact Microswitch with N/C contact

and restart lock

Microswitch with N/C contact, restart

lock and additional signal contact

max. contact rating AC 230 V +10%, 10 (2) A, cos ϕ = 1 (0.6), DC 230 V +10%, 0.25 A

with hysteresis 1.5% and 2%

AC 230 V +10%, 6 (1.2) A, cos ϕ = 1 (0.6)

Microswitch gold-plated, extra code /702*

(*only with hysteresis 3%, 5%, and 7%)

AC / DC 24 V, 0.1 A, contact resistance 2.5 to10 m

––

Ω

–

Contact reliability To ensure high switching reliability, we recommend a minimum load of:

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with silver contacts:

AC / DC = 24 V, 100 mA

with gold-plated contacts (briefly "702“:

AC / DC = 10 V, 5 mA

Data Sheet 603026

JUMO GmbH & Co. KG

Delivery address: Mackenrodtstraße 14

36039 Fulda, Germany

Postal address:

36035 Fulda, Germany
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumo.net

JUMO Instrument Co. Ltd.

JUMO House
Temple Bank, Riverway
Harlow, Essex CM20 2DY, UK
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumo.co.uk

JUMO Process Control, Inc.

6733 Myers Road
East Syracuse, NY 13057, USA
Phone: [phone]

1-800-554-5866
Fax: [phone]
E-mail: [e-mail]
Internet: www.jumousa.com

Operating data

Hysteresis
in % of the control /
limit value range

Switching point accu­racy in % of the con­trol/limit value range

Ambient
temperature influence
based on the
control/
limit value range

admissible storage
temperature

admissible
ambient
temperature
during use

Rated position

Page 3/10

Switching function with fluid-filled measuring system

Rated value Possible actual value

TR, TW 3 3 max. 4 standard

66 max. 8on request

1.5 1 max. 2 Surcharge
with gas-filled measuring system

5 4 max. 8 standard
9 8 max. 12 on request
2 1.5 max. 2.5 Surcharge

with fluid-filled measuring system

STW (STB) 5 4 max. 6 standard

9 8 max. 11 on request
21 max. 3Surcharge

with gas-filled measuring system

75 max. 12standard
9 8 max. 16 on request
2 1.5 max. 3 Surcharge

TR, 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%

When the ambient temperature on the case deviates from the calibration ambient temperature 22 °C,

a switch point offset occurs.

Higher ambient temperatures = lower switching point

Lower ambient temperature = higher switching point

Surface-mounting thermostats with scale limit value

< 200 °C ÷ 200 °C ≤ 350 °C > 350 °C ≤ 500 °C

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

Influence on the switch head

0.08%/K 0.17%/K 0.06%/K 0.13%/K 0.14%/K 0.12%/K
Influence on the capillary per metre

0.047%/K 0.054%/K 0.09%/K 0.11%/K 0.04%/K 0.03%/K

-50 to +50 °C

max. +80 °C

as per DIN 16 257, NL 0 to NL 90 (different rated positions (NL) on request)

Case

serial Case lid: Polycarbonate, shock resistant

Case bottom part: Aluminum die casting, painted

Color: pebble gray RAL 7032

Color: anthracite gray RAL 7015
Extra code "701" Case lid made of aluminum die casting, painted Color: pebble gray RAL 7032
Set point value setting TR:

Switching point adjustable from the outside using the rota­ry knob

TW, TB, STB, STW (STB):

The switching point can be adjusted by means of a screw-

driver once the case lid has been removed
Protection type EN 60 529-IP 54
Cable inlet As a standard: self-sealing grommet M 20 x 1.5, sealing range 8-10 mm
Weight approx. 0.8 kg

Switch head
fastening

ATHf- type series . .
with capillary

serial Screw-connection by means of counter nut M 18 x 1 on the case stud,

capillary outlet on the case stud

Extra code

711

with 2 screws through the case bottom part, lateral capillary outlet on the case,

lid and bottom part made of plastic

764 Fastening flange made of steel sheet, capillary outlet on the case stud
248 Wall stands

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