JUMO ATH.-SE Series User manual

Series ATH.-SE-..
Surface-mounting thermostats
B 603031.0
Operating Manual
V4.00/EN/ 00073788/2020-05-01

Please read these Operating Instructions before commissioning the instrument.
Keep the operating instructions in a place which is accessible to all users at all
times. Please assist us to improve these operating instructions. Your sugges-
tions will be welcome.
Phone [phone]
Fax [phone]
All necessary settings and, where appropriate, alterations inside the instrument
are described in these operating instructions. If, however, any difficulties should
arise during commissioning, you are asked not to carry out any unauthorized
manipulations on the unit. You could endanger your rights under the instrument
warranty! Please contact the nearest subsidiary or the main factory in such a
case.

Contents
Page
1 Introduction ............................................................................... 5
1.1 Typographical conventions ...................................................................... 5
1.1.1 Warning signs ............................................................................................. 5
1.1.2 Note signs ................................................................................................... 5
1.2 Application ................................................................................................. 6
1.3 Marking ...................................................................................................... 6
1.4 Safety notes ............................................................................................... 6
2 Instrument identification .......................................................... 7
2.1 Nameplate (example) ................................................................................ 7
2.2 Type designation ....................................................................................... 7
3 Mounting .................................................................................... 8
3.1 Dimensions ................................................................................................ 8
3.2 Opening the case .................................................................................... 10
3.3 Fixing the surface-mounting thermostat .............................................. 10
3.3.1 Code s (rigid stem) .................................................................................... 10
3.3.2 Code f (with capillary) ................................................................................ 10
3.4 Capillary / temperature probe / sheath ................................................. 11
3.4.1 General ...................................................................................................... 11
3.4.2 Approved process connections ................................................................ 11
3.5 Permissible pressure at the sheath ....................................................... 12
3.5.1 Sheaths 20 and 30 .................................................................................... 12
3.6 Mounting the probe ................................................................................ 13
4 Installation ............................................................................... 14
4.1 Regulations and notes ............................................................................ 14
4.2 Electrical connection .............................................................................. 15
4.2.1 Closing the case ....................................................................................... 16

Contents
Page
5 Settings .................................................................................... 18
5.1 Setting the limit value ............................................................................. 18
5.2 Resetting the STB ................................................................................... 19
5.3 Self-monitoring ........................................................................................ 19
5.3.1 Behaviour in the event of a measuring system breakage ......................... 19
5.3.2 Response to low temperature ................................................................... 19
5.4 Using the STW(STB) as STB ................................................................... 19
6 Instrument description ........................................................... 20
6.1 Technical data ......................................................................................... 20
7 Documents and accessories ................................................. 22

5
1 Introduction
1.1 Typographical conventions
1.1.1 Warning signs
1.1.2 Note signs
abc1Footnote
Footnotes are comments which refer to specific parts of the text. Footnotes
consist of two parts:
1) The marking in the text, arranged as continuous superscript numbers.
2) The footnote text, at the bottom of the page and preceded by a superscript
number.
✱Action
This symbol marks the description of a required action.
The individual steps are indicated by an asterisk, e.g.
✱Select setpoint
VDanger
This symbol is used where there may be danger to personnel if the instruc-
tions are disregarded or not followed accurately.
ACaution
This symbol is used where there may be damage to equipment if the instruc-
tions are disregarded or not followed accurately.
HNote
This symbol is used to draw your special attention to a remark.
vReference
This symbol refers to additional information in other chapters or sections.

1 Introduction
6
1.2 Application
Surface-mounting thermostats Series ATH.-SE-.. are approved for monitoring
installations on steel-hulled ocean-going ships (e.g. steam and boiler plant,
indirect heating systems) as:
❏Temperature monitor (TW)
❏Safety temperature monitor STW (STB)
❏Safety temperature limiter (STB).
The versions comply with DIN EN 14597 and are approved as per the guide-
lines of the Classification Societies:
-DNVGL
- Bureau Veritas
- Pressure Equipment Directive 2014/68/EU
(ATH.-SE-20(STW) and ATH.-SE-70(STB) only)
1.3 Marking
H Surface-mounting thermostats Type ATH.-SE-.. are approved as per DIN EN 60730-
2-9.
1.4 Safety notes
Physical and toxicological properties of substances which may escape in the
event of a system break:
ACutting through or kinking the capillary of the surface-mounting thermostats
Type ATH.-SE-.. will lead to permanent failure of the instrument!
HIn the event of a measuring system breakage, the filling liquid can escape.
There is currently no statement by the health authority concerning hazards to
health in the event of short-term exposure and low concentration, e.g. in the
event of a measuring system break.
End of scale Dangerous
reaction
Fire/explosion hazard Water
contami-
nation
Toxicological data
Ignition
temperature
°C
Explosion
limit
% v/v
irritant danger to
health
toxic
below +200 °C no +355 °C 0.6 - 8 yes yes yes no
+200 °C to +300 °C no +490 °C - - yes yes yes no

7
2 Instrument identification
2.1 Nameplate (example)
(1) Type code (see type designation, below)
(2) Control range / contact rating
(3) Approval mark
2.2 Type designation
Type code
( 1 )
( 2 )
( 3 )
Basic type
603031 ATH.-SE surface-mounted thermostat with microswitch
Basic type extension
02 ATH.-SE-2 Temperature monitor TW with changeover contact
20 ATH.-SE-20 Safety temperature monitor STW (STB),
with changeover contact
70 ATH.-SE-70 Safety temperature limiter STB,
with N/C contact
Design
1ATHs-SE-.. with rigid shaft
2ATHf-SE-.. with capillary

8
3 Mounting
3.1 Dimensions
ATHs-SE-2,
ATHs-SE-20
with
sheath "20"
(up to +150 °C)
K M24x1,5
M 20x1,5
DIN 89280-Z14
27
70
66
G1/2
33
14
Ø 26
S = max. 200 (150)
67
94

9
3 Mounting
ATHs-SE-2 (20)
with
sheath "30"
(up to +300 °C)
ATHf-SE-70,
with
sheath "20"
(up to +300 °C)
K M24x1,5
M 20x1,5
DIN 89280-Z14
70
66
G 1/2
Ø 26
S = max. 200 (150)
Ø 90
~85
14
27
Ø
K M24x1,5
M 20x1,5
DIN 89280-Z14
70
12
66
G1/2 14
G1/2
Ø 26
S = max. 200 (150)
33
67
94
24
27
Ø

3 Mounting
10
3.2 Opening the case
Opening ✱Unscrew the two lead-sealable cheese-head screws ( 5 )
✱Remove the upper part of the case ( 1 )
3.3 Fixing the surface-mounting thermostat
Operating
position
unrestricted
(for open-air mounting on request)
3.3.1 Code s (rigid stem)
The case journal is secured in the enlarged open end of the sheath by two
fixing screws.
3.3.2 Code f (with capillary)
by ½" pipe thread on the case journal
( 1 )
( 5 ) ( 5 )
VEnsure that the gasket is seated correctly when reassembling!

11
3 Mounting
3.4 Capillary / temperature probe / sheath
3.4.1 General
3.4.2 Approved process connections
Temperature
probe
10
Sheaths 20, 30
ACutting through or kinking the capillary will lead to permanent failure of the
instrument!
Minimum permissible bending radius of the capillary is 5 mm.
The temperature probe must be fitted in a JUMO sheath, otherwise the
approval of the surface-mounting thermostat becomes invalid.
HThe temperature probe must be completely submerged in the medium.
In order to ensure the general accuracy of response, the instruments must only
be used with the sheaths supplied from the factory (diameter D = 8, 10 mm).
Only probes with a diameter d = 8 mm may be fitted in sheaths with a diameter
D = 10 mm.
When the operating medium is air, connection type "10" (without sheath) must
be selected.
Hrefer todata sheet 606710 !

3 Mounting
12
3.5 Permissible pressure at the sheath
3.5.1 Sheaths 20 and 30
3.5.1.1 Stainless steel sheath
Material
l
Permitted flow
velocities
on request
3.5.1.2 Sheath "20" made of brass
Emitted flow
velocities
on request
AThe following values refer to the maximum pressure of the probe mounting
concerned. The maximum pressure which can be sealed depends on the
mounting conditions and may possibly be lower.
Tube and nipple material: X 6 CrNiMoTl 17 122
Temperature Tube diameter
8 x 0.75 mm or conical 10 x 0.75 mm
Max. permissible pressure Max. permissible pressure
100 °C 92 bar 74 bar
150 °C 88 bar 71 bar
200 °C 83 bar 67 bar
300 °C 72 bar 58 bar
Sheath "20" tube and nipple material: brass
Temperature Tube diameter
8 x 0.75 mm 10 x 0.75 mm
Max. permissible pressure Max. permissible pressure
100 °C 50 bar 40 bar
150 °C 48 bar 39 bar
HThe plain cylindrical probe, Form 10 must only be used in pressureless
medium.
ADue to the general accuracy of response, the instrument must only be used
with the factory-supplied sheaths.

13
3 Mounting
3.6 Mounting the probe
For thermostats with long-
distance line (abbreviation
"f"), the temperature probe
is fastened in the sheath by
means of the clamping
piece (1) for connection
types "20".
HSubmerge the sheath and the temperature probe (2) into the medium and
ensure that the temperature probe (2) is completely submerged in the medium
because otherwise, greater switching point deviations will occur.
( 1 )
( 2 )

14
4 Installation
4.1 Regulations and notes
V❏The electrical connection must only be made by qualified personnel.
❏The choice of cable, the installation and the electrical connection must
conform to the requirements of VDE 0100 “Regulations for the installation
of power circuits with nominal voltages below 1000 V”, or the appropriate
local regulations.
❏If contact with live parts is possible while working on the unit, it must be
completely disconnected from the supply.
❏Earth the instrument at the PE terminal to the protective conductor. This
cable must have a cross-section that is at least as large as the supply
cables. Earth cables must be run in a star configuration to a common earth
point which is connected to the protective earth of the supply. Do not loop
earth cables, i.e. do not run them from one instrument to another.
❏Apart from faulty installation, incorrect settings on the thermostat can affect
the proper functioning of the following process or lead to damage. Setting
up must therefore be restricted to qualified personnel. Please observe the
appropriate safety regulations in this respect.

15
4 Installation
4.2 Electrical connection
✱Open the case.
➪ Section 3.2 "Opening the case", page 10.
✱Pass the connection cable (cable diameter 10 — 16,5 mm) through the
screw connection (3). Fitting type"X" (no special tools), screw connection
up to 2.5 mm2conductor cross-section.
✱Establish the connection to the terminals ( 1 ) in accordance with the appro-
priate connection diagram.
✱Connect the protective conductor to terminal PE ( 2 ).
Connection
diagrams
VTightening torque:
clamping screws / protective conductor terminal (PE) = 0.45 to 0.68 Nm
TW / STW (STB) STB as N/C contact
with signal contact
STB
with (N/C) break contact

4 Installation
16
4.2.1 Closing the case
✱Make sure that the plastic gasket in the lower part of the case ( 2 ) is seated
correctly.
✱Place the upper part of the case ( 1 ) onto the lower part ( 2 ).
✱Tighten the lead-sealable cheese-head screws ( 5 ).
HOn thermostats with code -70, the external reset button ( 3 ) must be located
precisely on top of the internal reset button ( 4 ) for the microswitch, since this
is the only way the reset button ( 3 ) can be operated from the outside.
H
( 1 )
( 2 )
( 3 )
( 4 )
( 5 )
( 5 )

17
4 Installation
Cable relief ✱Turn the screw connection ( 1 ) clockwise until the cable inlet is sealed and
the cable is secured against pulling out. The cable has to be protected
against vibration overload by leaving sufficient extra cable length ( 2 ).
✱Close the case.

18
5 Settings
5.1 Setting the limit value
✱Open the case.
➪ Section 3.2 "Opening the case", page 10.
✱Set the limit value on the set point setter ( 5 ) using a screwdriver.
( 1 ) Top stop
( 2 ) Bottom stop
( 3 ) Set point indicator
( 4 ) Scale division
( 5 ) Set point setter

19
5 Settings
5.2 Resetting the STB
After the temperature has fallen below the set limit value (safe temperature
limit) by about 10% of the scale range, the microswitch can be reset.
Action
5.3 Self-monitoring
5.3.1 Behaviour in the event of a measuring system breakage
5.3.2 Response to low temperature
5.4 Using the STW(STB) as STB
1. 2. 3.
✱Unscrew the cap nut
(1).
✱Press the reset but-
ton (2) until the micro
switch is reset.
✱Screw the cap nut (1)
back on
HOn the STB and STW (STB), the circuit stays open permanently in the event of
a measuring system breakage (leakage).
On the STB, the microswitch is additionally locked.
HThe electrical circuit opens when cooling the probe of STW (STB) and STB
down to the negative temperature range, but it then closes again if the temper-
ature rises. The STB must be unlocked manually if the minimum probe temper-
ature is exceeded.
The STW (STB) unlocks itself automatically.
VThe restart lock as per DIN EN 14597 must be ensured by the subsequent cir-
cuit. This circuit must be in accordance with VDE 0116.

20
6 Instrument description
6.1 Technical data
Permissible
ambient
temperature
in operation
Permissible
overtempera-
ture safety
on the probe during use
max. scale end value +15%
Permissible
storage
temperature
maximum +50 °C, minimum -50 °C
Case Cover: aluminium die casting with screws for lead sealing
Base: die-cast aluminium, painted
Connection
cable
Diameter 10 — 16.5 mm, maximum conductor cross-section 2.5 mm2
Switching
differential
in % of
limit value
range
Max.contact
rating
Fusing required see contact rating
Protection IP54 as per EN 60 529, operation under normal conditions
Operating
medium
Water, oil, air, superheated steam
Time constants
t0.632
Capillary Thermostat head with scale limit value
maximum +80 °C +80 °C
minimum -40 °C -40 °C below +200°C
-20 °C -20 °C > 200 °C to < 300 °C
Code only on types 2 and 20
nominal value possible actual value
S 1
S 2
S 3
3
6
1.5
3-4
6-8
1-2
TW, STW (STB) with hysteresis 3% and 6%
230 V, 10 (2) A AC, p.f. = 1 (0.6) 230 V, 0.25 A DC
TW, STW (STB) with hysteresis 1.5%
230 V, 6 (1.2) A AC, p.f. = 1 (0.6)
in water in oil in air / superheated steam
<45 sec. < 60 sec. < 120 sec.