JUMO 605041 User Manual
JUMO GmbH & Co. KG
Delivery address: Mackenrodtstraße 14
36039 Fulda, Germany
Postal address:
36035 Fulda, Germany
Phone: +49 661 6003-0
Fax: +49 661 6003-607
E-mail: mail@jumo.net
Internet: www.jumo.net
JUMO Instrument Co. Ltd.
JUMO House
Temple Bank, Riverway
Harlow, Essex CM20 2DY, UK
Phone: +44 1279 635533
Fax: +44 1279 635262
E-mail: sales@jumo.co.uk
Internet: www.jumo.co.uk
JUMO Process Control, Inc.
6733 Myers Road
East Syracuse, NY 13057, USA
Phone: 315-437-5866
1-800-554-5866
Fax: 315-437-5860
E-mail: info.us@jumo.net
Internet: www.jumousa.com
Data Sheet 605041
Explosion protected surface-mounting thermostat
ATH-Ex type series
Special features
• compact case (75x110x56mm)
• 5 A contact rating
• can be fitted directly in zone 1, 2, 21 and 22
• Temperature can be set in zone 1, 2, 21 and 22
• Control ranges from -20°C to +500°C
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Brief description
Explosion protected surface-mounting thermostats of the ATH-Ex type series control and
monitor thermal processes and can be directly used in explosive areas - Zone 1 and Zone 21.
The devices are available as temperature monitors TW and fail-safe temperature monitors STW.
The thermostats operate according to the fluid or gas expansion principle. The electrical
switching element is a pressure-resistant encapsulated microswitch.
Design as per DIN EN 14597:
TW Temperature monitor
STW Fail-safe temperature monitor
Ex identification
II 2G Ex ed IIC T6 for explosive gas atmosphere
II 2D Ex tD A21 IP65 T80°C for explosive dust atmosphere
ATH- Ex -. .
Explosion protection
Device group II, category 2,
II 2G
equipment for explosive gas atmosphere
Device group II, category 2,
II 2D
equipment for explosive dust atmosphere
Approval/approval marks (see Technical Data)
2012-03-01/00073252
DGRL
JUMO GmbH & Co. KG
Delivery address: Mackenrodtstraße 14
36039 Fulda, Germany
Postal address:
36035 Fulda, Germany
Phone: +49 661 6003-0
Fax: +49 661 6003-607
E-mail: mail@jumo.net
Internet: www.jumo.net
JUMO Instrument Co. Ltd.
JUMO House
Temple Bank, Riverway
Harlow, Essex CM20 2DY, UK
Phone: +44 1279 635533
Fax: +44 1279 635262
E-mail: sales@jumo.co.uk
Internet: www.jumo.co.uk
JUMO Process Control, Inc.
6733 Myers Road
East Syracuse, NY 13057, USA
Phone: 315-437-5866
1-800-554-5866
Fax: 315-437-5860
E-mail: info.us@jumo.net
Internet: www.jumousa.com
Technical data
Switching function
Data Sheet 605041 Page 2/6
Temperature monitor TW
and fail-safe proof temperature monitor STW
If the temperature exceeds the setpoint 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 setpoint value
set is gone below (by the hysteresis).
Self-monitoring
for the fail-safe temperature monitor STW
If the measuring system is destroyed, i.e. if the expansion fluid
emerges, the pressure in the STW diaphragm drops and permanently
opens the current circuit. Unlocking is no longer possible.
If the probe has cooled down to a temperature within the control
range table, e.g. below -20°C, the current circuit is also opened. The
STW is automatically restarted.
Control ranges and probe table
Control
range
Switching point accuracy in the
upper third of the scale range
a
capillary length
maximum
maximum probe
temperature as per
DIN EN 14597
STW opens at
probe
temperature
Probe length "L"
with "d“ = 6 mm
in °C TW STW in mm in °C below °C TW STW
-20...+50
0...+50
0...+100
+40...+120
+50...+200
+80...+250
+50...+300
+20...+400
+20...+500
a.
Offset of the switching point accuracy to a different scale range is possible upon customer request.
+0 K
-3 K
+0 K
-2 K
+0 K
-4 K
+0 K
-3 K
+0 K
-6 K
+0 K
-7 K
+0 K
-10 K
+0 K
-15 K
+0 K
-19 K
+0 K
-3.5 K
+0 K
-2.5 K
+0 K
-5 K
+0 K
-4 K
+0 K
-8 K
+0 K
-8.5 K
+0 K
-12.5 K
+0 K
-19 K
+0 K
-24 K
+60 -30 153 132
+60
202 172
+115 117 102
-10
5000
+140 135 117
+230 107 94
+300 -20 90 78
+345 -30 67 60
1000 +460 -30 - - 202
2000 +550 -30 237 149
Capillary and temperature probe
Type End of scale Capillary ∅ 1.5 mm Temperature probe
ATH-Ex-.. up to 200°C Copper (Cu)
Material No. 2.0090
electrically tin-plated
Copper (Cu)
Material No. 2.0090
hard soldered,
electrically tin-plated
up to 300°C Stainless steel (CrNi)
Material No. 1.4571
Stainless steel (CrNi)
Material No. 1.4571,
welded
up to 500°C Stainless steel (CrNi)
Material No. 1.4571
Stainless steel (CrNi)
Material No. 1.4571,
welded
capillary length standard 1000 mm, maximum 5000 mm
min. bending radius of
5mm
capillary
Electrical data
Switching element pressure-resistant encapsulated microswitch with change-over contact
maximum contact rating AC 230 V +10%, 5 A, cos
Electrical connection Screw-connection in a case, suitable for a cable cross section up to 2.5 mm
2012-03-01/00073252
ϕ ≥ 0.9
2
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