Note: the lock-out circuit must be in accordance with Section 8.7 of DIN/VDE Twin thermostats ATH.-SW-2020 ATH.-SW-2070 ATH.

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1 M. K. JUCHHEIM GmbH & Co Delivery address:mackenrodtstraße 14, Fulda, Germany Postal address: 3603 Fulda, Germany Phone: Fax: Internet: JUMO Instrument Co. Ltd. JUMO House Temple Bank, Riverway Harlow, Essex CM 20 2TT, UK Phone: Fax: Internet: JUMO PROCESS CONTROL INC. 88 Fox Chase, Suite 103 Coatesville PA 19320, USA Phone: JUMO Fax: Internet: Data Sheet Page 1/ Surface-mounting thermostats Series ATH-SW Protection IP6 Single or twin thermostats Arrangement to DIN 3440 as = temperature monitor = safety temperature limiter = safety temperature monitor ATHs-SW-.. Type Examination according to - DIN Pressure Equipment Directive 9/23/EC Operating principle The surface-mounting thermostat type ATH-SW operates on the principle of liquid expansion. A temperature change of the fluid in the sensing system (consisting of probe, capillary and diaphragm) produces a volume change. The resulting movement of the diaphragm operates the snap-action switch via a lever mechanism. Safety temperature limiter and fail-safe If the set limit is exceeded on rising temperature, the circuit 1-2 opens (and on the stays mechanically locked out in this position). Failure of the measuring system, i.e. leakage of the expansion medium, causes the pressure under the diaphragm to drop, thus permanently opening the circuit 1-2. The circuit is also opened if the probe is cooled down to a temperature below -10. As the temperature rises above -10, the safety temperature limiter has to be reset manually by pressing the reset button (on the the reset is performed automatically). Lock-out function On the, exceeding the set limit causes the circuit to be opened and mechanically locked out. After the temperature has fallen below the set limit by about 10% of span, the microswitch can be manually reset (about 1% with top of scale >30). When using the as, the lock-out function to DIN 3440 must be provided by a subsequent circuit. Note: the lock-out circuit must be in accordance with Section 8. of DIN/VDE Types Single thermostats ATH.-SW-2 ATH.-SW-20 ATH.-SW-0 Type designation ATH. -SW- s f -SW Twin thermostats ATH.-SW-22 ATH.-SW-220 ATH.-SW-20 ATH.-SW-2020 ATH.-SW-200 ATH.-SW-00 thermostat, surface mount, with microswitch with pocket (Code U to Data Sheet ) fixed to case with capillary, standard probe mounting: A = plain cylindrical probe dust-tight and jet-proof diecast aluminium case, IP6 protection -2 temperature monitor () with changeover contact ATHf-SW safety temperature monitor with changeover contact -0 safety temperature limiter () with break contact and lock-out. The reset button can be operated after removing the case cover. /au snap-action switch contacts gold-plated /U changeover contact on TB and Standard accessory Operating Instructions B

2 M. K. JUCHHEIM GmbH & Co 3603 Fulda, Germany Data Sheet Page 2/ Table of control ranges and probes (liquid-filled) For 0 to to to to to to to to to to to to to to to +30 For S and +30 to to to to to Setpoint adjustment The switching point can be adjusted using a screwdriver on the setpoint spindle against the internal scale, after removing the case top. Switching device for monitors, : single-pole changeover contact; for limiter : single-pole break contact on rising temperature and lock-out, additionally with signal contact (at extra cost). contact rating with differentials 3%, %, 6%, 9% : %, %, 9% : : 10 (2) A, 230 V AC +10%, p.f. = 1 (0.6) 0.2 A, 230 V DC +10% with differentials 1.%; 2,%; 6 (1.2) A, 230 V AC +10%, p.f. = 1 (0.6) 0.1 A, 230 V DC +10%, with code /au 0.1 A, 24 V AC/DC contact resistance mω Table of control ranges and probes (gas-filled) For AM +20 to Possible capillary length [m] [%] For S and +20 to Possible capillary length [m] [%] in % of control range span 3% standard 6% on request 1.% at extra cost % standard with liquid-filled measuring system with gas-filled measuring system Nominal value Possible actual value Nominal value Possible actual value 3 max. 4 6 max. 8 1 max. 2 4 max. 6 8 max max. 3 % standard % standard 4 max. 8,0 8 max. 12,0 1. max. 2. max. 12,0 8 max. 16,0 1. max. 3

3 M. K. JUCHHEIM GmbH & Co 3603 Fulda, Germany Data Sheet Page 3/ Switching point accuracy (in % of scale span; referred to the limit value) in upper third of scale % at start of scale Permissible ambient temperature at thermostat head and capillary in operation: Capillary Thermostat head for end of scale, max min < > Permissible storage temperature thermostat head, capillary, probe maximum: +0 minimum: 0 Enclosure protection IP6 to EN Operating position unrestricted DIN registration numbers ATH. -SW ATH. -SW S ATH. -SW ATH. -SW-22 / ATH. -SW-220 / S ATH. -SW-20 / ATH. -SW-2020 / 9001 S ATH. -SW-200 / 91 S ATH. -SW-00 / 9001 Mean ambient temperature error, referred to scale span If the ambient temperature at the thermostat head deviates from the +22 calibration temperature, a displacement of the switching point will occur: higher ambient temperature = lower switching point lower ambient temperature = higher switching point for temperatures with end of scale < due to thermostat head, % per due to capillary, % per per m length % Case Material: die-cast aluminium Thermostat mounting for type ATHf-SWby two screws through base of case (wall mounting), capillary exit at bottom of case Cable entry cable gland M 20 x 1., suitable for cable diameters 6 to 12 mm Capillary and probe End of scale Capillary Probe Minimum bending radius Capillary length mm up to +200 up to +30 up to +00 up to +30 copper 1. mm dia. Mat. Ref copper 1. mm dia. Mat. Ref stainless steel 1. mm dia. Mat. Ref at extra cost stainless steel 1. mm dia. Mat. Ref m is standard; up to m on request, at extra cost copper Mat. Ref brazed st. steel Mat. Ref brazed st. steel Mat. Ref welded st. steel, Mat. Ref welded

4 M. K. JUCHHEIM GmbH & Co 3603 Fulda, Germany Data Sheet Page 4/ Probe mountings Models ATHs-SW-.. and pockets to U up to +10 Data Sheet screw-in pocket with fixing screw for securing on case spigot. Screw-in thread G½, with sealing shoulder DIN 382/2-A, normally brass. UZ * above +10 with extension so that the permissible ambient temperature +80 at the case is not exceeded. Screw-in thread G½, with sealing shoulder DIN 382/2-A, 2 a/f in steel. Models ATHf-SW-.. VNote At present there is no restrictive statement from the health authorities concerning any danger to health over short periods and at low concentration, e.g. after a fracture of the measuring system. U screw-in pocket with fixing screw (clip for clamping the probe). Screw-in thread G½, with sealing shoulder DIN 382/2-A, 2 a/f, normally brass. * above +10 screw-in thread G½, with sealing shoulder DIN 382/2-A, 2 a/f, normally steel. * Pockets U, UZ: for pressure loading above +300, material on enquiry! Physical and toxicological properties of the expansion media that may escape in the event of a system fracture! s with end of scale +30 < > Dangerous reactions Fire/explosion hazard Ignition temperature Explosion limit % v/v Water contamination irritant Toxicological data danger to health toxic Connection diagrams K ( 4 ) Code 2, 20 with changeover contact Code 0 with break contact and lock-out ( 4 ) Code 0 with break contact, lock-out and additional signal contact ( 4 ) ( 4 ) Code 20 System I with changeover contact System II with break contact and lock-out ( 4 ) Code 22, 220, 2020 System I and II with changeover contact ( 4 ) ( 4 ) Code 00 with break contact, lock-out and additional signal contact ( 1 ( 2 ( 4 ) ( 4 ) Code 20 System I with changeover contact System II with break contact, lock-out and additional signal contact Code 00 with break contact and lock-out

5 M. K. JUCHHEIM GmbH & Co 3603 Fulda, Germany Data Sheet Page / Dimensions Cable gland M 20x1. hex Cable gland M 20x1. ATHf-SW-.. ATHs-SW-.. Order example Single thermostat Type : ATHs-SW-2 Control range : 0 to +100 Differential : 3% Mounting : U G½ CrNi Stem : 8 x 200 mm CrNi Twin thermostat Type : ATHf-SW-20 Control range : +30 to +110 Differential : 3% Capillary : 2 m Cu Mounting : U G½ CuZn Stem : 1 x 10 mm CuZn