JUMO 602021 User Manual
EM
Panel-mounting thermostats
B 602021.0
Operating manual
2013-03-18/00073772
Please read these Operating Instructions before commissioning the instrument.
Keep the manual in a place that is accessible to all users at all times. Please
assist us to improve these operating instructions, where necessary. Your comments will be appreciated.
Phone+49 661 6003-0
Fax+49 661 6003-607
All necessary settings and possible adjustments inside the instrument are
described in these operating instructions. If any problems should still arise
during start-up, 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 head office in such a case.
Contents
1 Introduction .................................................................................. 4
1.1 Typographical conventions ......................................................................... 4
1.1.1 Warning signs ................................................................................................. 4
1.1.2 Note signs ...................................................................................................... 4
1.2 Application .................................................................................................... 5
1.3 Marking ......................................................................................................... 5
1.4 Safety notes .................................................................................................. 6
2 Instrument identification ............................................................. 7
2.1 Type nameplate ............................................................................................ 7
2.2 Type designation .......................................................................................... 8
3 Mounting ...................................................................................... 9
3.1 Dimensions ................................................................................................... 9
3.2 Fixing the panel-mounting thermostat ..................................................... 11
3.2.1 Mounting the switch head ............................................................................ 11
3.3 Capillary / temperature probe / pocket .................................................... 13
3.3.1 General ......................................................................................................... 13
3.3.2 Approved probes or pockets ....................................................................... 13
3.4 Permissible loading on the pocket ........................................................... 14
3.4.1 Pockets 20, 22/23, 40 and 41/42 ................................................................. 14
4 Installation .................................................................................. 18
4.1 Regulations and notes ............................................................................... 18
4.2 Electrical connection ................................................................................. 18
4.3 Connection diagrams ................................................................................. 20
5 Settings ....................................................................................... 21
5.1 Unlocking the operating temperature limiter (TB)
or protection temperature limiter (STB) ................................................... 21
5.2 Setpoint adjustment ................................................................................... 22
5.3 Self-monitoring on the STB and STW (STB) ............................................ 22
5.4 Use of the STW (STB) as STB .................................................................... 22
6 Instrument description .............................................................. 23
6.1 Technical data ............................................................................................. 23
1 Introduction
1.1 Typographical conventions
1.1.1 Warning signs
V
Danger
This symbol is used when there may be danger to personnel if the
instructions are ignored or not followed correctly!
Caution
A
1.1.2 Note signs
H
v
1
abc
This symbol is used when there may be damage to equipment if the
instructions are ignored or not followed correctly!
Note
This symbol is used when your special attention is drawn to a remark.
Reference
This symbol refers to further information in other chapters or sections.
Footnote
Footnotes are remarks that refer to specific points in the text. Footnotes
consist of two parts:
A marker in the text, and the footnote text.
The markers in the text are arranged as continuous superscript numbers.
The footnote text (in smaller typeface) is placed at the bottom of the page and
starts with a superscript number.
✱ Action instruction
This symbol indicates that an action to be performed is described.
The individual steps are marked by this asterisk, e.g.
✱ Open housing
4
1.2 Application
Thermostats control and monitor thermal processes.
Panel-mounting thermostats operate on the principle of liquid or gas
expansion. A microswitch serves as the electrical switching device.
The devices of the EM model series can be supplied as temperature
controllers TR, operating temperature limiters TW, operating temperature
limiters TB, protection temperature limiters STW and protection temperature
limiters STB.
In case of faults, the STB switches the plant that it is monitoring into an
operationally safe state.
Versions to: DIN EN 14597
TR Temperature controller
TW Operating temperature limiter
TB Operating temperature limiter
STW(STB) Protection temperature limiter
STB Protection temperature limiter
1 Introduction
Type approval according to:
- DIN EN 14597
- Pressure Equipment European Directive 97/23/EC
- VDE 0631
-UL
- CSA (only Type EM-1, EM-2, EM-4, EM-50)
You will find the Declarations of Conformity at:
www.jumo.net ➯ Products ➯ Thermostats ➯ Data Sheet 602021
or ask for them to be sent.
Cutting through or kinking the capillary of the panel-mounting thermostat, EM
A
series, will lead to permanent instrument failure!!
1.3 Marking
(only Type EM-20, EM-30, EM-40, EM-50)
Depending on the version:
(see nameplate for details)
5
1 Introduction
1.4 Safety notes
Filling liquid may escape in the event of a measuring system fracture.
H
At present, any health risks can be excluded.
Physical and toxicological properties of the expansion fluid that may escape in
the event of a system fracture.
Control range
with
end of scale
°C
< +200 no +355 0.6 - 8 yes yes
ⱖ +200 ≤ +350 no +490 - - yes yes
> +350 ≤ +500 no no no no no no no
Dangerous
reactions
1
concerning any danger to health over short periods and at low concentration,
e.g. after a fracture of the measuring system.
temperature
At present, there is no restrictive statement from the health authorities
Fire and
explosion hazard
Ignition
°C
Explosion
limit
% v/v
Water
contamination
irritant
Toxicological data
danger
to health
1
1
toxic
no
no
6
2.1 Type nameplate
( 5 )
( 3 )
( 8 )
( 7 )
( 4 )
( 2 )
( 1 )
( 6 )
( 1 ) Type
( 2 ) Type code
( 3 ) Regulating or limit value range / ambient temperature
at which this thermostat was calibrated (Option)
( 4 ) Switching capacity
2 Instrument identification
( 5 ) Permissible ambient temperature
( 6 ) Serial number
( 7 ) Date of manufacture
( 8 ) Week of manufacture
7
2 Instrument identification
2.2 Type designation
Type
designation
EM - .. - .. / .. Panel-mounting thermostat with one
EMF - .... - .. / .. Panel-mounting thermostat with 2, 3 or 4
- 1... Temperature controller TR with changeover
- 2... Operating temperature limiter TW with
- 3... Operating temperature limiter TW with
- 4... Operating temperature limiter TB with NC
microswitch
microswitches
Standard connection "10"
(plain cylindrical probe)
contact
changeover contact
changeover contact; Changeover contact
setting fixed at the factory
contact and restart inhibit; Changeover contact
setting fixed at the factory
- 5... Operating temperature limiter TB with NC
contact and restart inhibit
- 20 Protection temperature limiter STW (STB) with
changeover contact
- 30 Protection temperature limiter STW (STB) with
changeover contact; Changeover contact
setting fixed at the factory
- 40 Protection temperature limiter STB with NC
contact and restart inhibit; Changeover contact
setting fixed at the factory
- 50 Protection temperature limiter STB with NC
contact and restart inhibit
- .... - .. / 707 Temperature compensation at switch head
- .... - .. / 702 Snap-action switch contacts gold-plated
- .... - .. / 574 Microswitch with n.c. (break) contact, lock-out
and additional signal contact (TB and STB only)
8
3.1 Dimensions
EM-1
3 Mounting
EMF-13
( 1 ) Faston connector A 6.3 x 0.8 to DIN 46 244
( 2 ) Reset button (with codes 4 and 5 only)
( 3 ) omitted with codes 2, 3, 4 and 5
( 4 ) Reset button (with codes 4, 5, 40 and 50 only)
( 5 ) omitted with codes 2, 3, 4, 5, 20, 30, 40, 50
( A ) Rear view
9
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