EXPLOSION PROTECTION CERTIFICATE OF CONFORMITY This is to certify that the product Cert NO.GYJ15.1225X Miniature Resistance Thermometer manufactured by WIKA Alexander Wiegand SE & Co.KG (Address:Aiexander-Wiegand-Stra6e 30, 63911 Klingenber 6 Germany) which model is Ex marking product standard TR21 Ex ia IT C T1~T6 Ga Ex iad 20 T135 I drawing number 14065688.01 Sheet 3 has been inspected and certified by NEPSI, and that it conforms to GB 3836.1-2010,GB 3836.4-2010,GB 3836.20-2010,GB 12476.1-2013, GB 12476.4-2010 This Approval shall remain in force until 2020.10.20 Remarks!.Conditions for safe use are specified in the attachment to this certificate. 2.Symbol "X" placed after the certification number denotes specific conditions of use, which are specified in the attachment to this certificate. 3.Model designation is specified in the attachment to this certificah:. 4.Intrinsic safety parameters specified in the attachment to this certificate. S.This certificate is also applicable for the product with the same type manufactured by WIKA Instrumentation (Suzhou) Co., Ltd. (Address: No.81, Ta Yuan Road SND Suzhou, PR China 215011) Director National Supan~i~ Explosion Prot.-... ~ru Issued Date This Certificate is valid for products compatible with the documents 103 Cao Bao Road Shanghai200233,Chlna http:/ twww.nepsl.org.cn Emall: lnfo@nepsl.org.cn Tel: +86 21 64368180 Fax: +86 21 64844580 Eclllon05
~*~ttbtt~~-~~ll{tffl]l~m National Supervision and Inspection Centre for Explosion Protection and Safety of Instrumentation (GYJ15.1225X/GY J15.1226X/GY J15.1227X) (Attachment I ) Attachment I to GYJ15.1225X/GYJ15.1226X/GYJ15.1227X TR21iEtia-, TR31-u-E-~Jg, TR34-E-~- series Miniature Resistance Thermometers, manufactured by WIKA Alexander Wiegand SE & Co.KG or WIKA Instrumentation (Suzhou) Co., Ltd., has been certified by National Supervision and Inspection Center for Explosion Protection and Safety of Instrumentation (NEPSI). The Miniature Resistance Thermometers accords with following standards: GB3836.1-201 0 Explosive atmospheres-part 1: Equipment- General requirements GB3836.4-201 0 Explosive atmospheres-part 4: Equipment protection by intrinsic safety "i" GB3836.20-201 0 Explosive atmospheres-part 20: Equipment with equipment protection level (EPL) Ga GB12476.1-2013 Electrical apparatus for use in the presence of combustible dust-part 1: General requirements GB124 76.4-2010 Electrical apparatus for use in the presence of combustible dust-part 4: Protection by intrinsic safety "id" Miniature Resistance Thermometers has the Ex marking Ex ia II C T1-T6 Ga or Ex iad 20 T135. The certificate numbers are GYJ15.1225X(TR21-g-E -ti), GYJ15.1226X(TR31-a-E- 6) and GYJ15.1227X (TR34 -E-~~. The certifed type codes are as following: TR21-~-E~-, in which: Sl indicates design, which could be A, B or C. indicates output signal, which could be P*, R*, TT or TB. indicates other information which are not Ex-relevant. TR31-g-E-l2Q-!t, in which: a indicates design, which could be 3 or K. indicates output signal, which could be P*, S* or TT. indicates other information which are not Ex-relevant. TR34-E-, in which: indicaties output signal, which could be P*, S* or TT. :g indicates other information which are not Ex-relevant. Page 1 of 5
(GY J15.1225X/GY J15.1226X/GY J15.1227X) (Attachment I ) 1. Special conditions for safe use The suffix "X" placed after the certificate number indicates that this product is subject to special conditions for safe use: A reverse heat flow from the process exceeding the permissible ambient temperature of the transmitter or the enclosure is not allowed and shall be avoided by a suitable thermal insulation or a suitable neck length of the tubing. The wall thickness of the thermometer is greater than 0.2mm, but less than 1 mm. The device may not be exposed to environmental conditions which may negatively affect the partition wall. A thermowell with a suitable minimum wall thickness can be used alternatively. Using a thermowell/neck tube the device shall be constructed in a way that allows an installation that results in a sufficient tight joint (IP67) or a flameproof joint (GB3836.2-201 0) in the direction of the less endangered area. (Ta) for variants with optional connection cable with molded connector M1 2X1 is limited to -2o c -+so c. (Ta) for variants with optional adapter M12-EN 175301 is limited to -4o c -+s5 c. 2. Conditions for safe use 2.1 The relationship between type code, temperature class (or maximum input power), ambient temperature and medium temperature is as following: TR21- -En-B. TR21-g-ETB-, TR31-3-E-TI-, TR34-E-TI- : (models with built-in transmitter, standard design with connector M12) gas applications (Ex ia Il C T1-T6 Ga) ~ I I Temperature Class T6-40 c -+45 c Without neck tube: -50 c -+ 150 c T M( medium temperature) +self- T5-4o c -+so c heating(1 5K)note1 T1-T4-4o c -+s5 c dust applications (Ex 1aD 20 T1 35) Pi 650mW 550mW -40oC-+40 C -40oC-+?Ooc -40 C-+85 C Without neck tube: -5o c-+15o c With neck tube: -5o c -+25o c T M( medium temperature) + selfheating( 15K) note1 Page 2 of 5
(GY J15.1225X/GY J15.1226X/GY J15.1227X) (Attachment I ) TR31-K-E-TT- :(models with built-in transmitter, variants with permanently connected cable) gas applications (Ex ia II C T1-T6 Ga) Temperature Maximum surface temperature {T max) Class T6-2o c -+45 c Without neck tube: -5o c-+15o c T M( medium temperature)+ self- T5-2o c-+6o c heating(15k) notet T1-T4-2o c-+8o c dust applications (Ex iad 20 T135) Pi 650mW -20 C-+40 C -20 C-+ 70oc Without neck tube: -5o c-+15o c T M( medium temperature)+ selfheating( 15K) note! 550mW -20 C- +80 C.. Note1: The spec1al cond1t1ons for safe use shall be considered. For models w1th bu1 lt-1n transmitter the temperature rise by self-heating of the sensor at the tip of the probe is 15K maximum. ~. ~.. TR34- E-P*-~, TR34-E-S*-, T R31-3-E-P*-~ TR31-3-E-S*-, TR21-a-EP*-, TR21-~ - ER*- : (models without transmitter, standard design with connector M12) gas applications (Ex ia II C T1-T6 Ga).. -1!111 Temperature Class T6-50 c-+80 c Without neck tube: -5o c -+15o c T M(medium temperature)+ self- T5-5o c-+85 c heatingnote2 T1-T4-50 c-+85 c dust applications (Ex 1aD 20 T135) Pi -50 C-+40 C 650mW -50 C-+ 70 C 550mW -50 C-+85 C Without neck tube: -5o c-+15o c T M( medium temperature)+ self- heatingnote2 TR31-K-E-P*-~. TR31-K-E-S*-~: (models Without transmitter, vanants w1th permanently connected cable) gas applications (Ex ia II C T1-T6 Ga) Temperature I Class Maximum surface temperature {T max) 11 Page 3 of 5
(GY J15.1225X/GY J15.1226X/GY J15.1227X) (Attachment I ) T6-20 "C-+45 "C Without neck tube: -50 "C-+150"C T5-20 "C -+60 "C With neck tube: -50 "C-+250"C T1-T4-2o c -+ao c dust applications (Ex 1aD 20 T135) T M( medium temperature) +selfheatingnote2 pi -20oC-+40oC 650mW -20 C-+ 70 C 550mW -20 C-+80 C Without neck tube: -50 "C- +150"C With neck tube: -50"C-+250 "C T M( medium temperature) + selfheatingnote2 Note2: The special conditions for safe use shall be considered. For models without built-in transmitter the applied power will only be converted at the tip of the probe. Temperature rise by self heating of the sensor at the tip of the probe, depending on the supplied power, shall be calculated with the following formula: Temperature rise = supplied power X thermal resistance (Rth) Thermal resistance (Rth) = 335KJW 2.2 The relationship between type code, applications and input intrinsic safety parameters are as following: TR 21-~-ETI-i;i, TR21-~ETB-, TR31-a-E-TI-, TR34-E-TI-g: (terminals+/-) Input safety parameters Gas application Dust application Ui 30V 30V -\ h / 120mA 120mA ~ Pi 800mW 750/650/550mW '! Ci 29.7nF 29.7nF Li =0 =0 TR34-E-P*- I T R34 -E-S*-~, TR31-3-E-P*-~, TR31-~-E-S*-~. TR31-il-E-P*-~, TR21 i;i: (terminals 1-4) Input safety Gas application Dust application parameters Ui 30V 30V h 550mA 250mA _"':_ Pi 1500mW 750/650/550mW ci =0 =0 ~6 -EP* -a. TR21-J ER*- L =0 =0 2.3 Forbid end user to change the configuration to ensure the equipment's explosion protection performance. 2.4 When installation, use and maintenance of Miniature Resistance Thermometers, observe following standards GB3836.13-2013 "Explosive atmospheres- Part 13: Equipment repair, overhaul and reclamation" G83836.15-2000 "Electrical apparatus for explosive gas atmospheres Part 15: Electrical installations in hazardous area (other than mines)" Page 4 of 5
(GY J15.1225X/GY J15.1226X/GY J15.1 227X) (Attachment I ) GB3836.16-2006 "Electrical apparatus for explosive gas atmospheres Part 16: Inspection and maintenance of electrical installation (other than mines)" G83836.18-201 0 "Explosive atmospheres - Part 18: Intrinsically safe system" GB50257-2014 "Code for construction and acceptance of electric device for explosion atmospheres and fire hazard electrical equipment installation engineering" G815577-2007 "Safety regulations for dust explosion prevention and protection" GB12476.2-201 0 "Electrical apparatus for use in the presence of combustible dust- Part 2: Selection and installation 3. Manufacturer's Resposibility 3.1 Special condition for safe use specified above should be included in the instruction manual. 3.2 Manufacturing should be done according to the documentation approved by NEPSI. Page 5 of 5