General Specifications odel EJ120 Differential Pressure Transmitter The high performance draft range differential transmitter model EJ120 outputs a 4 to 20 m DC signal corresponding to the measured differential. odel EJ120 also features remote setup and monitoring through communications with the BRIN terminal and CENTU CS or µxl or RT 275 host. STNDRD SPECIFICTIONS Refer to GS 1C22T2-E for Fieldbus communication type marked with. PERFORNCE SPECIFICTIONS Zero-based calibrated span, linear output, wetted parts material code S and silicone oil. Reference ccuracy of Calibrated Span (including the effects of zero-based linearity, hysteresis, and repeatability) 0.2 % of Span 0.1 % of Span when /C is specified For spans below X, URL [0.15 + 0.02 Span ] % of Span X [0.05 + 0.05 Span ] % of Span, when /C is specified where X equals: Capsule X kpa {in 2 O} E 0.4 {1.6} Square Root Output ccuracy The square root accuracy is a percent of flow span. Output 50 % or Greater 50 % to Dropout point ccuracy same as reference accuracy reference accuracy50 square root output (%) T00E.EPS mbient Temperature Effects Total Effects per 28 C (50 F) Change [0.15 % Span + 0.20 % URL] Power Supply Effect 0.005 % per Volt (from 21.6 to 32 VDC, 350 ) FUNCTIONL SPECIFICTIONS Span & Range Limits easurement Span and Range E kpa in 2 O(/D1) mbar(/d3) mm 2 O(/D4) Span 0.1 to 1 0.4 to 4 1 to 10 10 to 100 Range -1 to 1-4 to 4-10 to 10-100 to 100 T01E.EPS URL is defined as the Upper Range Limit from the table. Zero djustment Limits Zero can be fully elevated or suppressed, within the Lower and Upper Range Limits of the capsule. External Zero djustment External zero is continuously adjustable with 0.01 % incremental resolution of span. Span may be adjusted locally using the digital indicator with range switch. ounting Position Effect Rotation in diaphragm plane has no effect. Tilting up to 90 will cause zero shift up to 0.4 kpa {1.6 in 2 O} which can be corrected by the zero adjustment. Output Two wire 4 to 20 m DC output with digital communications, linear or square root programmable. BRIN or RT FSK protocol are superimposed on the 4 to 20 m signal. Damping Time Constant (1st order) The sum of the amplifier and capsule damping time constant must be used for the overall time constant. mp damping time constant is adjustable from 0.2 to 64 seconds. Capsule (Silicone Oil) E Time Constant (approx. sec) 0.3 mbient Temperature Limits (approval codes may affect limits) -25 to 80 C (-13 to 176 F ) Process Temperature Limits (approval codes may affect limits) -25 to 80 C (-13 to 176 F) Yokogawa Electric Corporation 2-9-32 Nakacho, usashino-shi, Tokyo, 180-8750 Japan Phone: 81-422-52-5690 Fax : 81-422-52-2018 Copyright June 1997 3rd Edition July 1998
mbient umidity Limits 5 to 100 % R @ 40 C (104 F) Working Pressure Limits -50 to 50 kpa {-7.25 to 7.25 psi} Supply & Load Requirements (Safety approvals can affect electrical requirements (see graph below)) With 24 V DC supply, up to a 570 load can be used. R () 600 External load resistance 250 R= E-10.5 0.0236 Digital Communication range BRIN and RT 10.5 16.4 24.7 42 Power supply voltage E (V DC) F02E.EPS Figure 1. Relationship Between Power Supply Voltage and External Load Resistance Supply Voltage 10.5 to 42 V DC for operation(10.5 to 30 V DC for Intrinsically safe type) 16.4 to 42 V DC for digital communications(16.4 to 30 V DC for Intrinsically safe type) Load 0 to 1335 for operation 250 to 600 for digital communication EC Conformity Standards For EI (Emission): EN55011 For ES (Immunity): EN50082-2 Communication Requirements BRIN Communication Distance Up to 2 km (1.25 miles) when using CEV polyethylene-insulated PVC-sheathed cables. Communication distance varies depending on type of cable used. Load Capacitance 0.22 F or less (see note) Load Inductance 3.3 m or less (see note) Input Impedance of communicating device 10 k or more at 2.4 kz. Note : For general-use and Flameproof type. For Intrinsically safe type, please refer to OPTIONL SPECIFICTIONS. 2 RT Communication Distance Up to 1.5 km (1 mile) when using multiple twisted pair cables. Communication distance varies depending on type of cable used. Use the following formula to determine cable length for specific applications: 65 10 6 L= - (R C) (C f + 10,000) C Where: L = length in meters or feet R = resistance in (including barrier resistance) C = cable capacitance in pf/m or pf/ft C f = maximum shunt capacitance of receiving devices in pf/m or pf/ft PYSICL SPECIFICTIONS Wetted Parts aterials Diaphragm astelloy C-276 Cover flange SCS Process connector SCS Capsule Gasket PTFE Teflon Vent and Drain Plug SUS316 Process Connector Gasket PTFE Teflon Non-wetted Parts aterials Bolting SC435 or SUS630 ousing Low copper cast-aluminum alloy with polyurethane paint (unsell 0.6GY3.1/2.0) Enclosure Classifications JIS C0920 immersion proof (equivalent to NE 4X and IEC IP67) Cover O-rings Buna-N Name plate and tag Fill Fluid Silicone, Fluorinated oil (option) Weight 3.9 kg (8.6 lbs.) without integral indicator, mounting bracket, and process connector. Connections Refer to the model code to specify the process and electrical connection type.
3 ODEL ND SUFFIX CODES odel EJ120 Output Signal easurement span (capsule) Wetted parts material Process connections Bolts and nuts material Installation Electrical connection Integral indicator ounting bracket Optional codes Suffix Codes S................ 0............. 1............. 2............. 3............. 4............. 5......................... B............ -2.......... -3.......... -6.......... -7.......... -8.......... -9.......... 0.......... 2.......... 3.......... 4.......... 5.......... 7.......... 8.......... 9.......... D........ E........ N............... B....... C....... D....... N....... Description Differential transmitter (for draft application) -D.................. 4 to 20 m DC with digital communication (BRIN protocol) -E.................. 4 to 20 m DC with digital communication (RT protocol, refer to GS 1C22T1-E) -F.................. Digital communication (FOUNDTION Fieldbus protocol, refer to GS 1C22T2-E) E................. 0.1 to 1 kpa {10 to 100 mm2o} [Body] [Capsule] [Vent plug] SCS *1 SUS316L *2 SUS316 without process connector (Rc1/4 female on the cover flanges) with Rc1/4 female process connector with Rc1/2 female process connector with 1/4 NPT female process connector with 1/2 NPT female process connector without process connector (1/4 NPT female on the cover flanges) SC435 SUS630 [aximum working ] 50 kpa {0.5 kgf/cm2} 50 kpa {0.5 kgf/cm2} Vertical impulse piping type, right high, process connector up *3 Vertical impulse piping type, right high, process connector down *3 Vertical impulse piping type, left high, process connector up *3 Vertical impulse piping type, left high, process connector down *3 orizontal impulse piping type, right high *4 orizontal impulse piping type, left high *4 G1/2 female, one electrical connection 1/2 NPT female, two electrical connections without blind plug PG 13.5 female, two electrical connections without blind plug 20 female, two electrical connections without blind plug G1/2 female, two electrical connections and a blind plug 1/2 NPT female, two electrical connections and a blind plug PG 13.5 female, two electrical connections and a blind plug 20 female, two electrical connections and a blind plug Digital indicator Digital indicator with the range setting switch (None) SECC Carbon steel 2-inch pipe mounting (flat type) 2-inch pipe mounting (flat type) SECC Carbon steel 2-inch pipe mounting (L type) (None) / Optional specification 2-inch pipe mounting (L type) The marks indicate the most typical selection for each specification. Example: EJ120-DES5-92N/ T04E.EPS *1: Indicates cover flange and process connector material. *2: Diaphragm material is astelloy C-276. Indicated is other wetted parts material. *3: If necessary, specify ounting bracket code C or D. *4: If necessary, specify ounting bracket code or B.
4 OPTIONL SPECIFICTIONS (For Explosion Protected type) Item Description Code F Explosionproof pproval Explosionproof for Class I, Division 1, Groups B, C and D Dust-ignitionproof for Class II/III, Division 1, Groups E, F and G azardous (classified) locations, indoors and outdoors ( NE 4X ) FF1 Temperature class : T6 mb. Temp. : 40 to 60 C ( 40 to 0 F) F Intrinsically safe pproval *3 Intrinsically Safe for Class I, Division 1, Groups, B, C & D, Class II, Division 1, Groups E, F & G and Class III, Division 1 azardous Locations. Factory utual (F) Nonincendive for Class I, Division 2, Groups, B, C & D, Class II, Division. 2, Groups E, F & G, and Class III, Division 1 azardous Locations. Enclosure : "NE 4X", Temp. Class : T4, mb. Temp. : 40 to 60 C ( 40 to 0 F) FS1 Intrinsically Safe pparatus Parameters [Groups, B, C, D, E, F and G] Vmax=30 V, Imax=165 m, Pmax=0.9 W, Ci=22.5 nf, Li=730 [Groups C, D, E, F and G] Vmax=30 V, Imax=225 m, Pmax=0.9 W, Ci=22.5 nf, Li=730 CENELEC (KE) Combined FF1and FS1 *3 CENELEC (KE) Flameproof pproval EExd IIC T4, T5, T6, mb. Temp. : 40 to 80 C ( 40 to 176 F) ax. process Temp. : T4 ; 120 C (248 F), T5 ; 100 C (212 F), T6 ; 85 C (185 F) Electrical connection : 1/2 NPT female, PG 13.5 female and 20 female *2 CENELEC (KE) Intrinsically safe pproval *3 EEx ia IIC T4, mb. Temp. : 40 to 60 C( 40 to 0 F) Ui=30 V, Ii=165 m, Pi=0.9 W, Ci=22.5 nf, Li=730 Electrical connection : 1/2 NPT female, PG 13.5 female and 20 female *2 Combined KF1, KS1 and Type N pproval *3 KE Type N pproval Ex n IIC T4, mb. Temp. : 40 to 60 C( 40 to 0 F) U=30 V, I=165 m Electrical connection : 1/2 NPT female, PG 13.5 female and 20 female *2 CS Explosionproof pproval Explosionproof for Class I, Division 1, Groups B, C and D Dustignitionproof for Class II/III, Division 1, Groups E, F and G Division2 'SELS NOT REQUIRED', Temp. Class : T4, T5, T6 Encl Type 4x ax. Process Temp. : T4 ; 120 C (248 F), T5 ; 100 C (212 F), T6 ; 85 C (185 F) mb. Temp. : 40 to 80 C ( 40 to 176 F) Canadian Standards ssociation (CS) CS Intrinsically safe pproval *3 Class I, Groups, B, C and D Class II and III, Groups E, F and G Encl Type 4x, Temp. Class : T4, mb. Temp. : 40 to 60 C ( 40 to 0 F) Vmax=30 V, Imax=165 m, Pmax=0.9 W, Ci=22.5 nf, Li=730 Standards ssociation of ustralia (S) *3 Combined CF1 and CS1 *3 S Flameproof, Intrinsically safe and Non-sparking pproval Ex d IIC T4/T5/T6, IP67 class I, Zone 1, mb. Temp. : 40 to 80 C ( 40 to 176 F) ax. Process Temp. : T4 ; 120 C (248 F), T5 ; 100 C (212 F), T6 ; 85 C (185 F) Ex ia IIC T4, IP67 class I, Zone 0 Ex n IIC T4, IP67 class I, Zone 2 Ui=30 V DC, Ii=165 m DC, Wi=0.9 W, mb. Temp. : 40 to 60 C ( 40 to 0 F) Electrical connection : 1/2 NPT female, PG 13.5 female and 20 female *2 FU1 KF1 KS1 KU1 CF1 CS1 CU1 SU1 *1: pplicable for Electrical connection code 2 and 7. *2: pplicable for Electrical connection code 2, 3, 4, 7, 8, and 9. *3: pplicable for Output signal code D and E. T05E.EPS
5 OPTIONL SPECIFICTIONS igh ccuracy Type Painting Lightning protector Oil-prohibited use Item Description Code Color change mplifier cover only P Coating change Epoxy resin-braked coating X1 Oil-prohibited use with dehydrating treatment Calibration units *1 Sealing treatment to SUS630 nuts Long vent *2 Down-scale burnout in CPU failure *3 igh ccuracy Transmitter power supply voltage: 10.5 to 32 V DC (10.5 to 30 V DC for intrinsically safe type, 9 to 32 V DC for Fieldbus communication type.) llowable current: ax. 6000 (140 s), Repeating 1000 (140 s) 100 times Degrease cleansing treatment Degrease cleansing treatment and with fluorinated oil filled capsule. Operating temperature -20 to 80 C Degrease cleansing treatment and dehydrating treatment Degrease cleansing treatment and dehydrating treatment with fluorinated oilfilled capsule. Operating temperature -20 to 80 C P calibration (psi unit) bar calibration (bar unit) calibration (kgf/cm 2 unit) Total vent plug Length: 112 mm (standard, 32 mm) (See Table for Span and Range Limits) Sealant (liquid silicone rubber) is coated on surfaces of SUS630 nuts used for cover flange mounting. Down-scale: -5 %, 3.2 m DC or less C K1 K2 K5 K6 D1 D3 D4 Y U C1 Stainless steel amplifier housing *4 ill Certificate Pressure test/ Leak test Certificate mplifier housing material; SCS stainless steel (equivalent to SUS316 cast stainless steel or ST CF-8) Cover flange *5 Cover flange, Process connector *6 Test Pressure: 50 kpa (0.5 kgf/cm 2 ) Nitrogen (N 2 ) Gas *7 Retention time: 10 E1 01 11 T04 T06E.EPS *1: The unit of WP (ax. working ) on the name plate of a housing is the same unit as specified by Optional code D1, D3, and D4. *2: pplicable for vertical impulse piping type (Installation code 2, 3, 6, and 7). Long vent material is SUS316. *3: Initial preset status of the standard type (without / C1): Up-scale (110 %, 21.6 m DC or more) pplicable for Output signal code D and E. *4: pplicable for Electrical connection code 2, 3, 4, 7, 8, and 9. Not applicable for Optional code P and X1. *5: pplicable for Process connections code 0 and 5. *6: pplicable for Process connections code 1, 2, 3, and 4. *7: Pure nitrogen gas is used for oil-prohibited use (Optional code K1, K2, K5, and K6). < Settings When Shipped > Tag Number Output ode Display ode Operation ode Damping Time Constant *2 s specified in order *1 Linear unless otherwise specified in order Linear unless otherwise specified in order Normal unless otherwise specified in order 2 sec. Calibration Range Lower Range Value Calibration Range igher Range Value Calibration Range Units s specified in order s specified in order Selected from mm 2 O, mmq, mmwg, mmg, kpa, Pa, mbar, bar, gf/cm 2, kgf/cm 2, in 2 O, ing, ft 2 O, or psi. (Only one unit can be specified) T07E.EPS *1: Up to 16 alphanumeric characters (including - and ) will be entered in the amplifier memory. *2: If using square root output, set damping time constant to 2 sec. or more.
6 DIENSIONS odel EJ120 Vertical Impulse Piping Type Process connector up (INSTLLTION CODE '6') (For CODE '2','3' or '7', refer to the notes below) 234(9.21) 72 (2.83) 102 (4.02) Process connection 97 (3.82) 46 (1.81) 259(10.20) 197 (7.76) 6 (5.75) Ground terminal Process connector External indicator conduit connection Internal indicator Conduit connection igh ø78 (3.07) 110 (4.33) 54 (2.13) Unit : mm (approx.inch) Low (Note) Terminal 8 (5.83) 53 ( 2.09) ounting bracket (L-type, Optional) Zero adjustment 12 (0.47) Vent/Drain plugs 2-inch pipe (O.D. 60.5 mm) F02E.EPS orizontal Impulse Piping Type (INSTLLTION CODE '9') (For CODE '8', refer to the notes below) External indicator conduit connection 162 (6.38) 124 (4.88) 94 (3.70) 72 (2.83) 46 (1.81) 125 (4.92) Conduit connection 197 (7.76) Internal indicator Process connection Process connector ø78 (3.07) igh 54 (2.13) 128 (5.04) 110 (4.33) 12 (0.47) Zero adjustment Terminal Ground terminal Low (Note) Vent plug Drain plug 6 (5.75) 47 (1.85) 2-inch pipe (O.D. 60.5 mm) ounting bracket (Flat-type, Optional) F03E.EPS *1: When Installation code 2, 3, or 8 is selected, high and low on above figure are reversed. (i.e. igh is on the right.) *2: When Installation code 3 or 7 is selected, process connection and mounting bracket on above figure are reversed. Terminal Configuration Terminal Wiring + SUPPLY Power supply and output terminal CECK + External indicator(ammeter) terminal *1 Communication Terminals(BT200 etc.) Connection hook SUPPLY CECK CECK ETER Connection hook *1 Ground terminal *1: When using an external indicator or a check meter, the internal resistance must be 10 or less. Not available for Fieldbus communication(output signal code F). F05E.EPS
7 SELECTION GUIDE pplication Differential Pressure Flow Differential Pressure & Liquid Level with Remote Seals Type Traditional-ounting *1 Integral Orifice Extended Flush Combination Traditional-ounting *1 Traditional-ounting *1 Traditional-ounting *1 odel EJ110 EJ115 EJ118N EJ118W EJ118Y Draft Range Traditional-ounting *1 EJ120 Differential Pressure & Liquid Level Traditional-ounting *1 EJ130 Liquid Level, Closed or Open Tank bsolute (vacuum) Pressure Gauge Pressure Gauge Pressure with Remote Seal Gauge Pressure with Remote Seal igh Gauge Flush Extended Extended Flush EJ210 EJ220 EJ310 EJ430 EJ438N EJ438W EJ440 Capsule L V L E L B B B C D easurement Span kpa 0.5 to 10 1 to 100 5 to 500 0. to Pa 1 to 10 2 to 100 20 to 210 2.5 to 100 25 to 500 in 2 O 2 to 40 4 to 400 20 to 20 to psi 4 to 40 8 to 400 80 to 830 10 to 400 100 to 0.1 to 1 0.4 to 4 1 to 100 5 to 500 1 to 100 5 to 500 0.67 to 10 *2 1.3 to 130 *2 0.03 to 3 Pa *2 0.03 to 3 Pa 0. to 0.06 to 3 Pa 0.46 to 7 0.06 to 3 Pa 0.46 to 7 5 to 32 Pa 5 to 50 Pa 4 to 400 20 to 4 to 400 20 to 2.67 to 40 *2 0.38 to 38 ing *2 4.3 to 430 psi *2 4.3 to 430 psi 20 to psi 9 to 430 psi 66 to 1000 psi 8 to 430 psi 66 to psi 720 to 4500 psi 720 to 7200 psi aximum Working Pressure Pa 3.5 3.5 psi 500 500 50 kpa 7.25 32 32 4500 4500 10 kpa *2 3000 kpa *2 430 *2 130 kpa *2 40 in 2 18.65 *2 O*2 3 430 T08E.EPS *1: Traditional-mounting is 1/4-18 NPTF process connections ( 1/2 - NPTF with process adapters ) on 2-1/8" centers. *2: easurement values in absolute. 32 50 4500 7200 < Ordering Information > Specify the following when ordering 1. odel, suffix codes, and optional codes 2. Calibration range and units: 1) Calibration range can be specified with range value specifications up to 5 digits (excluding any decimal point) for low or high range limits within the range of -3 to 3. 2) Specify only one unit from the table, Settings when shipped. 3. Select linear or square root for output mode and display mode. Note: If not specified, the instrument is shipped set for linear mode. 4. Select normal or reverse for operation mode Note: If not specified, the instrument is shipped in normal operation mode. 5. Display scale and units (for transmitters equipped with integral indicator only) Specify either 0 to 100 % or engineering unit scale and Range and Unit for engineering units scale: Scale range can be specified with range limit specifications up to 5 digits (excluding any decimal point) for low or high range limits within the range of -19999 to 19999. 6. Tag Number (if required) < Related Instruments > Power Distributor: Refer to GS 1B4T1-E, 1B4T2-E. 3-Value anifold: Refer to GS 22B1C1-E BRIN TERINL: Refer to GS 1C011-E < Reference > 1. Teflon; Trademark of E.I. DuPont de Nemours & Company (US) for polytetrafluoreoethylene. 2. astelloy C-276; Trademark of Union Carbide Corporation (US) for nickel-molybdenum alloy. aterial Cross Reference Table SUS316L SUS316 S25C SC435 SUS630 SCS ISI 316L ISI 316 ISI 304 ISI 1025 ISI 4137 ST630 ST CF-8 T09E.EPS < Specification Conformance > The model EJ120 maintains a specification conformance to at least 3.