MODEL: 7HU- Head-mounted Two-wire Signal Conditioners 7-UNIT -WIRE UNIVERSL TEMPERTURE TRNSMITTER (HRT communication, outdoor enclosure, explosion-proof) Functions & Features Universal input: DC mv, T/C, RTD and resistance High accuracy HRT communication Explosion-proof approval Suitable for Functional Safety applications up to SIL Programming via hand-held communicator or via PC wide variety of T/C and RTD types User s temperature table can be used Self diagnostics Ultra-low temp. drift option (0 ppm/ C typ.) Stainless steel enclosure optional CE marking (conforms to TEX and EMC) [] TEMPERTURE DRIFT 0: Standard (temp. coefficient 0.05 %/ C) L: Ultra-low temperature drift (temp. coefficient 0.00 %/ C typ. 0.005 %/ C max.) [] LED INDICTOR 0: Without : With (SIL not available) [] TERMINL LOCK 0: None ( connection: Terminals on module) (For TIIS, selectable only with No indicator option.) T: Incorporated (Selectable only with the LED indicator option) [5] WIRING CONDUIT Confirm selectable combinations of approval and wiring conduit types in the table below. 0: G / : / NPT : M0.5 : PG.5 [6] MOUNTING RCKET 0: Without : With MODEL: 7HU[][][][][5][6][7] ORDERING INFORMTION Code number: 7HU--[][][][][5][6][7] Specify a code from below for each [] through [7]. (e.g. 7HU--0LT0/S). Use Ordering Information Sheet (No. ESU-765). Factory standard setting will be used if not otherwise specified. Specify the country in which the product is to be used with the Safety pproval code. [7] OPTIONS Enclosure Materials lank: Diecast aluminium enclosure /S: Stainless steel enclosure (TIIS flameproof approval not selectable) SELECTLE WIRING CONDUITS SPECIFIC TO ECH PPROVL ʻNʼ marked combinations are not selectable. WIRING CONDUIT PPROVL 0 8 0 Y N N Y Y Y Y N Y N Y N Y N N N [] SFETY PPROVL Confirm selectable combinations of approval and wiring conduit types in the table below. 0: None : FM explosion-proof : CENELEC flameproof (TEX) 8: TIIS flameproof (CE not available) RELTED PRODUCTS RS--C interface ell0 modem (model: COP-H) Usable in non-hazardous area only. US interface ell0 modem (model: COP-HU) Usable in non-hazardous area only. Hand-held communicator PC configurator software (model: 7HUCFG) Downloadable at M-System s web site. Cable gland (model: X-E-SXY) 7HU- SPECIFICTIONS ES-765 Rev.6 Page /7
PCKGE INCLUDES... Cable gland: Two provided for TIIS flameproof type Model No.: X-E-SXY Cable entries: Elastomeric sealing rings Wiring conduit size: G / Material: Chrome-plated brass (entry) CR (sealing ring) pplicable wire size: 8 - dia. Mounting bracket assembly (option) Stainless steel 0 pplicable pipe: / min.; max. Mounting screws () Engineering unit label () GENERL SPECIFICTIONS Degree of protection: NEM X, IP66/IP67 Wiring conduit: See Ordering information. Connection: Without terminal block and indicator: M screw terminal in transmitter Without terminal block with indicator: Input signal: M screw terminal in transmitter signal: Euro terminal (pplicable wire size: 0. to.5 mm (WG6 to 6), stripped length: 6 mm) With Terminal block and indicator: Input signal: M screw terminal in transmitter signal: M screws in terminal block Screw terminal Input signal: Nickel-plated brass signal: Without terminal block and indicator: Nickel-plated brass With terminal block and indicator: Nickel-plated steel Materials Transmitter Housing: Flame-resistant resin (black) Indicator Housing: Flame-resistant resin (black) Enclosure material: Diecast aluminium standard; SCS stainless steel casting optional (equivalent to type 6); silver color,epoxy resin coated Isolation: Input to output to outdoor enclosure User-configurable items: Input sensor type and numbers Number of wires (RTD & resistance) Input range (inverted range selectable) urnout limits (Upper / Lower) Damping time (factory set to 0) Cold junction compensation (T/C; internal or external MODEL: 7HU- sensor selectable) Linearization Sensor calibration calibration HRT communication mode Refer to the HRT setup manual or the PC configurator users manual for the detail. HRT COMMUNICTION Protocol: HRT communication protocol HRT address range: 0 5 (factory set to 0) Transmission speed: 00 bps Digital current: pprox. mp-p when communicating Character format: Start it, 8 Data its, Odd Parity it, Stop it Distance:.5 km (0.9 miles) HRT communication mode: Master-Slave Mode and urst Mode (factory set to Master-Slave) HRT network mode: Point-to-Point Mode and Multi-drop Mode; automatically set to Multi-drop Mode when the address is set to other than 0. LED INDICTOR (option) LED: 8 mm (. ) 7-segment, red Number of display digits: Scaling range: -999 to 9999 Offset range: -999 to 9999 Decimal point position: 0, 0, 0, or no decimal point Polarity sign: Minus () sign added automatically according to the computation result Read rate:.5/s Over-range warning: ll segments dark except the top ones that blink with the input exceeding the display/measurable range; or the bottom ones that blink with the input below the range. Engineering unit display: Unit label included; LED backlight provided DC, C, W,, F, V, mv,, m, %, kw, mw, kv, k, psi, K, bar, barg, Nl/min, kvar, Mvar, var, m, mm, kg, kg/h, kpa, MPa, N m, Nm /h, m /h, m /sec, m/sec, kgf/cm, l/min, %RH, l, l/h, t/h, rpm, ppm, ph, Pa INPUT SPECIFICTIONS The input is factory set for use with K thermocouple, single input, 0 to 00 C, internal CJC sensor. See Table for the available input type, the minimum span and the maximum range. DC mv (dual input available) Input resistance: MΩ Thermocouple (dual input available) Input resistance: MΩ 7HU- SPECIFICTIONS ES-765 Rev.6 Page /7
MODEL: 7HU- urnout sensing: μ External CJC sensor type: Pt 00 RTD (-wire, -wire or -wire) Input resistance: MΩ Excitation: 0. m llowable leadwire resistance: Max. 0 Ω per wire Resistance (-wire, -wire or -wire) Input resistance: MΩ Excitation: 0. m llowable leadwire resistance: Max. 0 Ω per wire OUTPUT SPECIFICTIONS range: 0 m DC Operational range:.75 m Load resistance vs. supply voltage: Load Resistance (Ω) = (Supply Voltage (V) 8 (V)*) 0.0 () (including leadwire resistance) * (V) with LED indicator option. urnout:.75.8 m or.5 m (factory set to m) Upper output limit proportional to the input: 0.5 m (factory set to.5 m) Lower output limit proportional to the input:.8 m (factory set to.8 m) Update time: 0 msec. (660 msec. with dual input) characteristics for dual input: verage or Differential selectable INSTLLTION Supply voltage Non-approved: 8 5 V DC (without LED indicator) 9 V DC (with LED indicator) CENELEC (TEX) & FM: 8 V DC (without LED indicator) V DC (with LED indicator) TIIS: 8 8 V DC (without LED indicator) V DC (with LED indicator) Operating temperature Non-approved: -0 to 85 C (-0 to 85 F) CENELEC (TEX) & FM: T5, -0 to 80 C (-0 to 76 F) T6, -0 to 70 C (-0 to 58 F) TIIS: T6, -0 to 60 C (- to 0 F) Weight: Unit pprox.. kg (.9 lb), aluminium pprox..0 kg (8.8 lb), stainless steel pprox..0 kg (. lb), TIIS flameproof Mounting bracket assembly (option) pprox. 0.78 kg (.7 lb) PERFORMNCE ccuracy: See Table. Display accuracy: ±0.0 m (Refer to 'how to calculate accuracy against scale'.) Cold junction compensation accuracy: C ( F) with internal CJC sensor LED indicator temp. coefficient: ±0.05 %/ C Response time: sec. (0 %) with damping time set to 0 and when not communicating via HRT. Supply voltage effect: ±0.005 % of span/v Insulation resistance: 00 MΩ with 0 V DC Dielectric strength: 0 V C @ minute (input to output to outdoor enclosure) Safety integrity level according to IEC 68: Suitable for use in a safety instrumented system up to SIL (together with sensor) if appropriate safety instructions are observed. Consult M-System. HOW TO CLCULTE CCURCY GINST SCLE Example: 0 m input, Scale 0 00 ccuracy = 0.0 m (0 )m 00 = 0.06 % Display Error = (00 0) 0.06 % = ±0.06 digits STNDRDS & PPROVLS EU conformity: TEX Directive EEx d EN 08 EMC Directive EMI EN 6000-6- EMS EN 6000-6- RoHS Directive EN 58 Safety approval: FM: Explosion-proof and Dust-ignition proof Class I, Division, Groups, C and D Class II, Division, Groups E, F and G Class III, Division T5 and T6 (Class 65) TIIS: Flameproof Ex d IIC T6 CENELEC: FIameproof (TEX) II G, EEx d IIC, T5 and T6 (EN 08) 7HU- SPECIFICTIONS ES-765 Rev.6 Page /7
MODEL: 7HU- INDICTOR TOP VIEW (option) Model No. Label Data Display 7HU- C ENTR / ESC CK / DOWN NEXT / UP Engineering Unit NEXT / UP utton ENTR / ESC utton CK / DOWN utton INPUT TYPE, RNGE & CCURCY INPUT TYPE MINIMUM SPN SPN CCURCY * TEMPERTURE DRIFT STNDRD DRIFT * ULTR-LOW DRIFT * DC mv mv -00 to 800 mv ±0 μv ±.5 μv/ C μv/ C Resistance 5 Ω 0 to kω ±0. Ω ±5 mω / C ±5 mω / C K (C) E (CRC) J (IC) T (CC) (RH) R Thermocouple S C (WRe 5-6) D (WRe -5) N U L RTD Pt 00 (JIS '97, IEC) Pt 00 Pt 0 Pt 000 JPt 00 (JIS '89) Ni 00 (DIN 760 '87) MINIMUM SPN 00 00 00 00 00 MINIMUM SPN 0 0 0 0 0 0 C F TEMPERTURE DRIFT -80 to 7-00 to 000-00 to 00-00 to 00 00 to 80 - to 760* - to 760* 0 to 00 0 to 00-80 to 00-00 to 600-00 to 0 CCURCY MINIMUM * SPN ± ± ± ± ± 80 80 80 80 80-9 to -8 to 8-8 to 9-8 to 75 75 to 08-58 to 00* -58 to 00* to 7 to 7-9 to 7-8 to -8 to 65 CCURCY STNDRD * DRIFT * ±.8 ±.8 ±.8 ±.8 ±.8 ±0. C/ C ±0. C/ C ±0. C/ C ±0. C/ C ±0. C/ C ULTR-LOW DRIFT * ±0.05 C/ C ±0.05 C/ C ±0.05 C/ C ±0.05 C/ C ±0. C/ C ±0. C/ C ±0. C/ C ±0. C/ C ±0. C/ C ±0.05 C/ C ±0.05 C/ C ±0.05 C/ C C F TEMPERTURE DRIFT -00 to 8-00 to 8-00 to 8-00 to 8-00 to -60 to CCURCY MINIMUM * SPN ±0. ±0. ±0. ±0. ±0. ±0. 8 8 8 8 8 8-8 to 56-8 to 56-8 to 56-8 to 56-8 to 9-76 to 8 CCURCY STNDRD * DRIFT * ±0.8 ±0.8 ±0.8 ±0.8 ±0.8 ±0.6 ±0.05 C/ C ±0.05 C/ C ±0.05 C/ C ±0.05 C/ C ±0.05 C/ C ±0.05 C/ C *. DC mv: Or ±0.05 % of absolute range (greater of 0 % and 00 % range values), whichever is greater. Or ±0. % of absolute negative range for two inputs including negative ranges, whichever is greater. Resistance: Or ±0.05 % of absolute range (greater of 0 % and 00 % range values), whichever is greater. Thermocouple: Or ±0.05 % of span, whichever is greater. dd cold junction compensation error. RTD: Or ±0.05 % of max. range (greater of 0 % and 00 % range values converted into C), whichever is greater. (For - or -wire RTD, the value is valid by the sensor calibration after wiring is complete.) *. Or ±0.05 % of absolute range/ C (greater of 0 % and 00 % range values), whichever is greater. *. Or ±0.005 % of absolute range/ C (greater of 0 % and 00 % range values), whichever is greater. *. Conformance range: to 760 C or to 00 F ULTR-LOW DRIFT * 7HU- SPECIFICTIONS ES-765 Rev.6 Page /7
MODEL: 7HU- DIMENSIONS unit: mm (inch) MOUNTING RCKET (optional) (.55) CLE GLND* (TIIS flameproof option) G / 9 (.5) 9 (.75) 0 (.09) 9 (.6) 8 (.65) 70 (.76) 6 (.0) 7 (.8) max. 9 (.6) SPCE REQUIRED TO REMOVE COVER M8, deep 0 (.) 78 (.07) max. (.9) 0 (.) 78 (.07) max. G / or /NPT or M0x.5 or PG.5 7 (6.85) 9 (.5) dia. 0 (.) dia. 9 (.75) *Two sets of cable gland are attached with TIIS flameproof option. 7HU- SPECIFICTIONS ES-765 Rev.6 Page 5/7
MODEL: 7HU- SCHEMTIC CIRCUITRY & CONNECTION DIGRM WITHOUT TERMINL LOCK ( connection: Terminals on module) Without LED Indicator HRT Comm. INPUT * Low Drift mplifier Input Isolation Driver V DC * OUTPUT LOD 0m DC CJC Sensor With LED Indicator HRT Comm. Isolation INPUT * Low Drift mplifier Input Driver CJC Sensor LED Display ENTR / ESC CK / DOWN Internal ridge 5 6 7 V DC * OUTPUT LOD 0m DC NEXT / UP 8 7HU- SPECIFICTIONS ES-765 Rev.6 Page 6/7
MODEL: 7HU- WITH TERMINL LOCK HRT Comm. INPUT * Low Drift mplifier Input Isolation Driver 9 0 V DC * OUTPUT LOD 0m DC CJC Sensor LED Display ENTR / ESC 5 CK / DOWN NEXT / UP Internal ridge 6 7 8 *. Input Connection Examples DC MILLIVOLT INPUT THEMOCOUPLE Internal CJC Two Inputs, Internal CJC SENSOR SENSOR RTD & RESISTNCE Two-wire Four-wire Two Inputs External CJC Two Inputs, External CJC Three-wire INPUT INPUT SENSOR SENSOR *. Limited to 00 Ω for HRT communication Specifications are subject to change without notice. 7HU- SPECIFICTIONS ES-765 Rev.6 Page 7/7