Ephy-Mess PR-SPA-EX-NWT Скачать руководство пользователя страница 1 | Manualshive

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Содержание PR-SPA-EX-NWT

Страница 1: ...Ma n u a l T e mp e r a t u r es e n s o rP R S P A E X N WT ...

Страница 2: ...abeling according to manual 4 Assembly 4 1 Installation in the slot of an electrical machine When installing the temperature sensor in the slot of an electrical machine e g motor generator or transformer no special conditions have to be observed The dimensions allow the fixed assembly directly into the slots of the electrical machinery The type of construction guarantees a good thermal contact bet...

Страница 3: ...the current flows through the temperature sensor Depending on the external influences this causes power dissipation and thus a self heating of the temperature sensor Since a measuring current of 1 mA is generally not exceeded the power dissipation of a Pt100 is in the range of a few tenths of a milliwatt and normally does not produce any significant measuring error Otherwise the self heating must ...

Страница 4: ...se generally a measuring current of 1 mA is not exceeded Recommended measuring current 2 mA for sensors with bifilar winding 4 4 Self heating coefficients Sensor Variant Self heating coefficients Pt Ni Cuxxxxx 0 4 K mW TE 0 K mW KTYxx 0 4 K mW PTC NATxxx Not relevant because of characteristic curve 4 5 Electrical data Characteristic values Gas Dust Ex e Ex i Max voltage UI Chip Class A DC 17 V DC ...

Страница 5: ... standard The KTY is color coded The connecting cables must be laid straight and without loops It is not allowed to connect install or apply the PR SPA EX NWT sensor in another way than described under item 4 and 5 Constructions with plugs are generally available with Ex i ignition protection The operating temperatures and the electrical values of the each plug must be considered 6 Technical data ...

Страница 6: ...stor PTC NATxxx 45 C NAT 1 23 K Resistance sensor Pt Ni Cuxxxxx Material Platinum Pt Nickel Ni Copper Cu Nominal value 5 2000 Ω at 0 C Tolerance class according to respective standard Measuring circuits 1 or 2 Mode of connection 2 3 or 4 wire circuit Measuring current 0 2 2 mA bifilar coiled 0 3 1 mA chip Self heating 0 4 K mW at 0 C Operating temperature 60 C 180 C Thermocouples TE Measuring circ...

Страница 7: ... response temperature General hints When mounting one has to pay attention that no damage will occur to the supply line and the insulation of the sensor The supply line must be installed strain relieved Extreme bending load as well as punctual mechanical stress to the sensor should be avoided The special security hints for the mounting regarding the ATEX approval are fixed in the above named ATEX ...

Страница 8: ...KTY sensor type 60 70 80 etc for NAT in C Pt Cu or Ni for RTD TE for thermocouple KTY for KTY sensor EPTC ZPTC DPTC for thermistors single twin triple Kombi for combination of several sensor types Number of measuring circuits sensors Titel of customer standards AK carrier component ST rigid ZS intermediate slider case SH shrinking tube insulation KS plastic carrier E g SH 1Pt100B4 3 5x12x200 4000 ...

Страница 9: ... Copper resistance thermometer not standardized Thermocouples TE DIN EN 60584 Thermistors PTC DIN 44081 82 Silicon sensors KTY not standardized 9 1 Circuit and labeling of connecting wires of Pt100 sensors acc to EN 60751 2 conductor connection 3 conductor connection 4 conductor connection 1 x Pt100 measuring resistor 2 x Pt100 measuring resistors 9 2 Circuit and labeling of connecting wires of th...

Страница 10: ... Pt100 measuring resistor supply unit 9 3 Connection diagram 9 3 1 Connection diagram equipment protection by increased safety Principle sketch of thermocouples 9 3 2 Connection diagram equipment protection by intrinsic safety Use of a suitable operating equipment Wiesbaden 23 rd of June 2017 ...

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