ata sheet NK10... H 09005819 _E_NK10_H ST4-C 04/17 *09005819* Fill Level Limiter for use in explosive areas Gas explosion protection Zone 1 an 2 ust explosion zone 21 an 22
1 Prouct an functional escription FISCHER Mess- un Regeltechnik GmH 1 Prouct an functional escription 1.1 elivery scope NK10 accoring to specification (see orer coe) Operating Instructions 1.2 Explosion hazar area classification The fill level limiter NK10 H can e use in areas at risk of explosion from flammale gases or vapours Zone 1 an Zone 2. The ientification as per irective 94/9/EC is: II 2 G Ex i c IIC T6 G The fill level limiter NK10 H can e use in areas at risk of explosion from flammale ust Zone 21 an Zone 22. The ientification as per irective 94/9/EC is: II 2 Ex t c IIIC T80 C WARNING Installation regulations The respective installation instructions must e oserve for every application case. 1.3 Function iagram 10 9 5 6 1 approx. 60 mm approx. 10 mm 2 3 8 7 4 Illustration 1: Function iagram 1 Swimmer 2 Swimmer ro 3 Metal ellows 4 Test utton 5 Switch lever 6 Micro-switch S1 7 Cale screw connection 8 an counter-flange 9 Weling socket 10 Tank 2 / 12 _E_NK10_H_ST4-C
FISCHER Mess- un Regeltechnik GmH Prouct an functional escription 1 1.4 esign an moe of operation The swim system of the fill level limiter is containe in the flui-fille reservoir (expansion tank). The swimming motions generate y changes in the fill level are transmitte irectly to the micro-switch S1 y a swimmer ro seale in a stainless-steel ellows. The fulcrum of the swimmer ro is locate outsie of the pressure chamer. There is also a test utton outsie the pressure chamer with which a function check as per IN 4754-3 can e run without lowering the fill level. When presse, the oy of the swimmer is move against its uoyancy. The factory efault switching point of micro-switch S1 is set so that it switches when the swimmer ro is horizontal. The optional warning switch S2 switches approx. 2.5 mm efore S1. The fill level height at which switching is triggere epens on the ensity of the heat carrier. The lowest ensity at which a secure function is guarantee is 0.6 kg/m³. When the meium has a ensity of 1.0 kg/m³, the switching level is approx. 60mm elow the mile of the flange or socket. _E_NK10_H_ST4-C 3 / 12
2 Technical ata FISCHER Mess- un Regeltechnik GmH 2 Technical ata 2.1 General Please also oserve the orer coe here. 0.8 to 1.1 ar as -20 C to 60 C 2.2 Application conitions The EC type test is ase on atmospheric conitions of 0.8 to 1.1 ar as an amient or meium temperatures of -20 C to 60 C. If the pressure an temperature levels iffer, the operator nees to ocument the suitaility in the explosion protection ocument. Amient temperature -20 +60 C Storage temperature -20 +85 C Atmospheric conitions 0.8 1.1 ar as Max. allowe temperature of meium epens on moel an zone Min. temperature of meium -20 C Specific minimum ensity of meium ρ = 0.6 kg/m 3 Installation position horizontal Type of protection: IP 65 acc. to IN EN 60529 Zone 1 an 2 Max. allowe temperature of meium max. occurring surface temperature The max. occurring surface temperature correspons to the meium temperature. Temperature classes acc. to IN EN 60079-14 an ignition temperatures nee to e taken into account for the respective application. In orer to avoi aitional heating, the evices may not e expose to aitional irect sunlight uring operation. Temperature class T1 T2 T3 T4 T5 T6 Max. surface temperature 450 C 300 C 200 C 135 C 100 C 85 C Zone 21 an 22 Max. allowe temperature of meium T80 C If the meium temperatures excee 80 C, the operator must examine the ignition temperatures of the relevant usts. Series Max. working pressure: Max. temperature of meium NK10 1 20 ar 400 C NK10 2 20 ar 400 C NK10 3 10 ar 350 C NK10 4 16 ar 400 C NK10 5 16 ar 400 C NK10 6 20 ar 400 C NK10 7 20 ar 400 C NK10 A 10 ar 350 C NK10 20 ar 400 C NK10 F 20 ar 400 C NK10 G 20 ar 400 C NK10 H 20 ar 400 C NK10 K 150 ls 400 C 4 / 12 _E_NK10_H_ST4-C
FISCHER Mess- un Regeltechnik GmH Technical ata 2 Max. working pressure: Max. temperature of meium NK10 M 300 ls 400 C NK10 N 300 ls 400 C NK10 P 300 ls 400 C 2.3 Switch contacts 1 or 2 micro-switches with 1-pin changeover contact. WARNING Only for connection to certifie intrinsically safe circuits in the ignition protection class Ex i IIC. Highest values per electricity circuit: U i = 30 V I i = 160 ma P i = 800 mw The intrinsically safe contact circuits are safely galvanically separate from each other an the earth potential. 2.4 Measurement accuracy Switch hysteresis Switching point ifferential etween S1 an S2 (+) Switching point ifferential on the meium surface (+) only for two micro-switches approx. 6 mm max. 30 mm epenent on meium ensity 2.5 irectives an certificates irectives Applicale stanars ATEX Guieline 2014/34/EU IN EN 60079-0:2013-04 Pressurise Vessel irective 2014/68/ EU IN EN 60079-11:2012-06 IN EN 60079-31:2010-07 IN EN 13463-1:2009-07 IN EN 13463-5:2011-10 IN EN 13445-1:2013-12 IN 4754-3:2015-03 Low-Voltage irective 2014/35/EU IN EN 61010-1:2011-07 Testing Certificate no. EC type testing 97/23/EC Moule Cert. no. 07 202 1081 Z 9143/13/H Moule Cert. no. 07/202/1081/Z/0150//15 EC type testing 94/9/EC Cert. no. TÜV 07 ATEX 553595 GL type testing IN CERTCO acc. to 4754-3 Cert. no. 65 353 93 HH Cert. no. 10F001 _E_NK10_H_ST4-C 5 / 12
2 Technical ata FISCHER Mess- un Regeltechnik GmH 2.6 Construction esign Swimmer system Stainless steel 1.4571 Metal ellows Stainless steel 1.4571 / counter-flange (*) Stainless steel 1.0425 (P265GH) or 1.4571 Weling socket St.35.8 [1.0345 (P235GH)] Screws / nuts (x) G 7258 / C35PK (*) Please note the information in the imensional rawings. (x) Only for version with weling connection 2.6.1 imensional rawings All imensions in mm unless otherwise state 2.6.1.1 with weling connection A C [square] NK104 1.0425 P265GH 220 365 82.5 77.8 x 77.8 105 NK105 1.0425 P265GH 250 395 88.9 90.0 x 90.0 103 E C Ø72 Illustration 2: imensional picture NK104 NK105 E A 6 / 12 _E_NK10_H_ST4-C
FISCHER Mess- un Regeltechnik GmH Technical ata 2 2.6.1.2 IN EN 1092-1 Type 1 Port NK102 1.0425 P265GH N80 PN40 200 160 24 22 18 8 NK10G 1.4571 --- N80 PN40 200 160 24 22 18 8 Ø72 209 359 Illustration 3: imensional picture NK102 NK10G Port A NK101 1.0425 P265GH N65 PN40 230 185 145 22 20 18 8 NK103 1.0425 P265GH N65 PN16 234 185 145 18 16 18 4 NK107 1.4571 --- N65 PN40 230 185 145 22 20 18 8 Ø62 A 379 Illustration 4: imensional picture NK101 NK103 NK107 _E_NK10_H_ST4-C 7 / 12
2 Technical ata FISCHER Mess- un Regeltechnik GmH 2.6.1.3 IN EN 1092-1 Type C Port NK10F 1.0425 P265GH N80 PN40 200 160 24 19.5 18 8 Ø72 Ø120 Ø106 209 359 Illustration 5: imensional picture NK10F Port A NK106 1.0425 P265GH N65 PN40 230 185 145 22 17.5 18 8 NK10A 1.0425 P265GH N65 PN16 234 185 145 18 13.5 18 4 Ø109 Ø95 Ø62 A 379 Illustration 6: imensional picture NK106 NK10A 8 / 12 _E_NK10_H_ST4-C
FISCHER Mess- un Regeltechnik GmH Technical ata 2 2.6.1.4 IN EN 1092-1 Type G Port NK10H 1.4571 --- N80 PN40 200 160 24 22 18 8 Ø106 Ø72 209 359 Illustration 7: imensional picture NK10H 2.6.1.5 IN EN 1092-1 Type Port NK10 1.0425 P265GH N65 PN40 185 145 22 20 18 8 4 Ø110 Ø94 Ø62 230 279 Illustration 8: imensional picture NK10 _E_NK10_H_ST4-C 9 / 12
2 Technical ata FISCHER Mess- un Regeltechnik GmH 2.6.1.6 ANSI 16.5 Port A NK10K 1.0425 P265GH 3 150 ls 209 192.5 152.4 24 22.8 19.1 4 NK10N 1.0425 P265GH 3 300 ls 204 209.5 168.1 28.4 26.8 22.3 8 NK10P 1.0425 P265GH 4 300 ls 201 254 200.1 31.7 30.1 22.3 8 Ø72 A 359 Illustration 9: imensional picture NK10K NK10N NK10P Port A NK10M 1.0425 P265GH 2.5 300 ls 227 190.5 149.3 25.4 23.8 22.3 8 Ø72 A 359 Illustration 10: imensional picture NK10M 10 / 12 _E_NK10_H_ST4-C
FISCHER Mess- un Regeltechnik GmH Orer Coes 3 3 Orer Coes Coe no. 1 2 3 4 5 6 7 8 9 10 11 12 N K 1 0 0 0 0 0 0 0 0 0 0 H Type Switching Elements ATEX [1] Material 1 IN EN 1092-1 Form 1 N65 PN40 1.0425 P265GH 2 IN EN 1092-1 Form 1 N80 PN25 1.0425 P265GH 3 IN EN 1092-1 Form 1 N65 PN16 1.0425 P265GH 7 IN EN 1092-1 Form 1 N65 PN40 1.4571 --- H IN EN 1092-1 Form 1 N80 PN40 1.4571 --- 6 IN EN 1092-1 Form C N65 PN40 1.0425 P265GH A IN EN 1092-1 Form C N65 PN16 1.0425 P265GH F IN EN 1092-1 Form C N80 PN40 1.0425 P265GH IN EN 1092-1 Form N65 PN40 1.0425 P265GH H IN EN 1092-1 Form G N80 PN40 1.4571 --- K ANSI 16.5 3 150 ls 1.0425 P265GH M ANSI 16.5 2.5 300 ls 1.0425 P265GH N ANSI 16.5 3 300 ls 1.0425 P265GH P ANSI 16.5 4 300 ls 1.0425 P265GH 4 Weling connection 82.5 mm (S80) 5 Weling connection 88.9 mm (S90) [8] Switching Elements 1 1 micro-switch 2 2 micro-switches [12] For use in explosive areas (ATEX) H Gas explosion protection Zone 1 an Zone 2 ust explosion protection Zone 21 an Zone 22 _E_NK10_H_ST4-C 11 / 12
3 Orer Coes FISCHER Mess- un Regeltechnik GmH 3.1 Information aout the ocument This ocument contains all technical ata aout the evice. Great care was taken when compiling the texts an illustrations; Nevertheless, errors cannot e rule out. Suject to technical amenments. FISCHER Mess- un Regeltechnik GmH ielefeler Str. 37a -32107 a Salzuflen Tel. +49 5222-974-0 Fax. +49 5222-7170 we email : : www.fischermesstechnik.e info@fischermesstechnik.e 12 / 12 _E_NK10_H_ST4-C