RT2E Compact temperature switch Explosion proof

Transcription

1 ompact temperature switch Explosion proof Main Features Excellent repeatability Dead band adjustment for regulation Fix dead band for control and alarm Light weight Explosion proof Hazardous areas 1, 2, 21, 22 pplications Power generation safety equipment Water treatment Valve and compressor control Technical Data Temperature range to Temperature Process : mbient : (T5) (T6) torage : Repeatability E conformity ± 1% F.. / constant temperature cycle Low Voltage Directive 2014/35/EU TEX Directive 2014/34/EU Protection rating IP 66 (EN 60529) Process Bulb cale Weight Housing Mounting Ground tainless steel (316L) tainless steel (316L) bulb Ø 9.5 mm Internal graduated scale 2.00 kg + transmission Grey painted aluminum housing Explosion proof Wall mounting 2 x M6 x 16 screws Via internal or external terminal block Electrical Via internal terminal block with cable gland 3/4 NPT certified TEX/IEEx for Ø7 to 12 mm cable Electrical function ee ordering code details page 5 djustment Internal adjustment possible for set point and dead band TEX/IEEx ertificate LIE 02 TEX 6219X IEEx LIE X lassification II 2 G D Ex d II T6 or T5 Gb Ex tb III T80 or T95 Db Options ustomer specific set point adjustment ode ETP Mounting on 2" pipe ode 0407 tainless steel tag plate and wire ode 9941 Page 1 / 5

2 ompact temperature switch Explosion proof Principle vapour filled flexible sensing element actuates a microswitch by means of a piston. The set point is adjusted by means of a compressible spring installed in opposition. P T et point and reset point must be between 10% and 90% of the selected scale. tandard factory adjustment etpoint at 50% of the scale on falling temperature ustomer speciffic factory adjustment (option ETP) The following specifications have to be given with the order: etpoint value djustment on falling or raising temperature Dead band value (as needed) when using an adjustable dead band switch djustable ranges Micro-switch dead band 1) cale T max ode djustable dead band Fixed dead band R L M - P U (2 x PDT) 10% 90% 10% 90% 10% 90% 10% 90% ) The value of the dead band is depending on the value of the set point. This table contains the dead band values for set point adjustment at 10% and 90% of the selected scale. For adjustable dead band the lower value correspond to the dead band spring totally released and the higher correspond to the dead band spring fully tensed. For other set points the dead band value can be calculated by linear interpolation between the values at 10% and 90%. Page 2 / 5

3 ompact temperature switch Explosion proof Micro switches characteristics witch code R L M P U Type djustable dead band Fixed dead band tandard Gold contact Ultra sensitive Double 6 Vdc N/ m Vdc N/ m Vdc N/ m Vdc N/ m Vdc N/ m N/ Vdc N/ m N/ Vdc N/ m N/ Vac m N/ Vac N/ N/ Dielectric rigidity between contacts and ground 2000 V 2000 V 2000 V 1000 V 2000 V Electrical s OM 1 PDT Yellow / green OM OM 2 PDT Yellow / green Hazardous areas : zone 1, 2, 21, Ta +70 Dust IP6x Gases T surface lass Ta = T6 Ta = T5 Important : Maximum power dissipated inside enclosure does not exceed 5 W ll necessary measures must be taken by the user, to avoid the calorific transfer from the fluid to the apparatus head increasing the head's temperature to such that it reaches the self-ignition temperature of the gas in which it is used. Page 3 / 5

4 ompact temperature switch Explosion proof Dimensions (mm) Direct mount temperature switches Temperature switches with capillary = Bulb length (temperature sensitive part) = dditional stem length (min. 25 mm) 2 fixing holes for M6 screw P = Immersion length (P = + ) K = apillary length (only TD1, TD2, TD3) E = Extension between process and housing only TRDE1 and TRDE2 TEX/IEEx certified able gland (not mounted) For version TD1 there is no additional stem length ( = 0). The sliding is mounted on the capillary. K ±2% Ø 44 E K ±2% Ø 8 Ø 2,6 Ø 8 Ø 8 P ±3 P ±3 Ø 9,5 Ø 9,5 TRDE TD1 TD2 TD3 tainless steel sliding male (TD2/3, TRDE1/2) tainless steel sliding male (TD1) lamping nut Thread and sizes F G 1/2 1/2 NPT lamping nut Thread and sizes F G 1/2 1/2 NPT ring F B H L H L /flat 17/flat B 23/flat 23/flat Tightness fittings B H L H L /flat 27/flat B 27/flat 27/flat fter tightening of the clamping nut, the stem is fixed in the process. Tight up to 40 bar. F Waterproof after tightening mounted on the capillary. Bulb length () according to the capillary length (K) and the temperature range (code) apillary ode TRDE1 n/a / mm n/a 100 n/a n/a TRDE2 n/a / mm TD1, TD2, TD3 K = m / mm TD1, TD2, TD3 K = m / mm TD1, TD2, TD3 K = m / mm Versions with = 150 mm or = 200 mm are not feasible with P = 150 mm Page 4 / 5

5 ompact temperature switch Explosion proof Ordering details RT2E RT2.. / Model ompact temperature switch RT2 pprovals TEX/IEEx Explosion proof E Pressure switches 1 PDT standard change over switch L 1 PDT gold contact change over switch M 1 PDT hermetically ultra sensitive change over switch P 1 PDT change over switch with adjustable dead band R 2 PDT double change over switch U. Temperature range ( ) (not for TRDE1) (not for TRDE1) (not for TRDE1) 48. Type of transmission TD1 tainless steel capillary without protection 1 TD2 tainless steel capillary with stainless steel protection 2 TD3 tainless steel capillary with stainless steel protection and PV coating 3 TRDE1 Rigid transmission with E=65 mm for temperature measurement below 120 TRDE2 Rigid transmission with E=120 mm for all temperature measurement D apillary length (K) Direct mounting (for TRDE1 and TRDE2) 0 1 meter 1 2 meters 2 3 meters 3 4 meters 4 5 meters 5 6 meters 6 7 meters 7 8 meters 8 9 meters 9 10 meters Immersion length (P) Immersion length (P) = Bulb length () + additional stem length () P = + 25 mm (minimum additional stem length = 25 mm, for see table on page 4) 0 P = 150 mm (not for TD1) 3 P = 250 mm (not for TD1) 4 P = 400 mm (not for TD1) 5 P = 600 mm (not for TD1) 6 P = 1000 mm (not for TD1) D Bulb diameter Ø 9.5 mm Process Without 0 G1/2 male (standard) 3 1/2 NPT male 6 Options to be added behind the / (see example below) / Ordering example with options ompact temperature switch TEX/IEEx Explosion proof 1 PDT standard change over switch Temperature range Transmission TD2 apillary 1 meter Immersion length 150 mm Bulb Ø 9.5 mm Process G 1/2 Option : tainless steel tag plate and wire RT2 E L / 9941 Page 5 / 5