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RT28U-R is a modification of RT28U for rail mounting. It is equipped with a 3-digit LED display, a universal input for Pt100, Pt1000, PTC, 6 thermocouple types as well as for linear current, voltage, and resistive signals from external transmitters and can have up to 2 programmable relay control/alarm outputs. The device has a built-in circuit for self-testing and self-calibration, manual measurement offset setting, and automatic software compensation of line resistance and cold junction temperature. The display-to-input correspondence (in case of linear input), decimal point position, temperature measurement unit, and offset value are also programmable. Thanks to its universal input, serial interface, and excellent price-to-performance ratio, RT28U-R is a widely applicable device.
| Захранване | 115 VAC, 230 VAC, 90…250 V |
|---|---|
| Релеен изход | Relay NO |
| Интерфейс | None, RS485 |
| Протокол | ASCII, ASCII PolyMonitor |
| Аналогов вход | 0…10 V DC linear voltage, 0…20mA DC linear current, 4…20mA DC linear current, RTD Pt100 – 1.385, RTD Pt1000 – 1.385, RTD PTC 1k, RTD PTC 2k, Thermocouple (TC) B, Thermocouple (TC) J, Thermocouple (TC) K, Thermocouple (TC) R, Thermocouple (TC) S, Thermocouple (TC) T, Two-wire external transmitter |
| Монтаж | DIN rail, In box IP65 |
| Корпус | 35x78x91 mm, 70x110x58 mm |
| Закон за управление | ON/OFF |
| Input (programmable) | |
| Pt100 (w=1.385); 3-wire | -100…850 °C |
| Pt1000 (w=1.385); 3-wire | -100…600 °C |
| PTC (1k at 25 °C); 3-wire (KT- and KTY-Based) | -50…150 °C |
| PTC (2k at 25 °C); 3-wire (KT- and KTY-Based) | -50…150 °C |
| Thermocouple “T” | -40…400 °C |
| Thermocouple “J” | -20…999 °C |
| Thermocouple “K” | -20…999 °C |
| Thermocouple “S” | 0…999 °C |
| Thermocouple “R” | 0…999 °C |
| Thermocouple “B” | 100…999 °C |
| Linear voltage 0…10 V | -199…999, programmable |
| Linear current 0(4)…20 mA | -199…999, programmable |
| Linear resistive 0…1 kΩ | -199…999, programmable |
| Custom linear (option)(1) | -199…999, programmable |
| Two-wire external transmitter | 4…20 mA (2) |
| Manual input offset | programmable |
| Input type selection | programmable |
| Decimal point selection | programmable |
| Temperature measurement unit | °C or °F, programmable |
| Outputs (up to 2 relay outputs) | |
| Relay electromechanical | 5A/250V w/ NO/NC or NO (3) contact |
| Solid state relay (SSR) (7) | 1A/250VAC |
| MOS gate (7) | 0.1A/60V, optically isolated |
| Output for external SSR | 5…24 V, 30 mA |
| Control algorithm | ON/OFF |
| Set point | within input range limits |
| Alarms | programmable |
| Serial interface (4) | RS485, isolated |
| Accuracy | |
| Measurement error | 0,3% (5) from span |
| Temperature drift | 0.02% from span for 1 °C |
| Cold junction compensation | automatic, -10…80 °C |
| RTD line compensation | automatic, up to 2 х 25 Ω |
| Power supply | |
| Mains supply voltage | 230 VAC or 115 VAC |
| SMPS voltage | 90…250 V |
| Isolated low voltage | 12…24 V or 24 VAC |
| Non-isolated low voltage | 12…24 V |
| Consumption | max. 1.5 VA |
| Indication and controls | |
| Digital display | 3 LED indicators |
| LEDs | 2 LEDs for output state |
| Keyboard | 3 membrane keys |
| Operating conditions | |
| Ambient temperature | -10…65 °C |
| Ambient humidity | 0…85 %RH |
| Design and materials | R1 | R2 |
| Dimensions [mm] | 70x110x58 | 35x78x91 |
| Mounting | on rail | in socket or on rail |
| Display digit height [mm] | 14 | 10 |
| Maximum weight [g] | 300 | 200 |
| Protection, front/terminals | IP20 | IP44 / IP20 |
| Case material | plastic | plastic |
| Wiring | screw terminals | socket UNDECAL(6) |
(1) Instead of linear current
(2) Provides loop supply voltage – 24 VDC (only w/ isolated power supply).
(3) NO/NC for case ‘R1’; NO for case ‘R2’
(4) Not available for case ‘R2’.
(5) 0.5% for T/Cs “S”, “R”, and “B”
(6) Ordered separately (see ‘Accessories’)
(7) Ask for availability!
Наименование на проекта: Решения в областта на информационните и комуникационни технологии и киберсигурността в малките и средните предприятия
Краен получател: Комеко АД
Обща стойност: 20 000 лв
Цел на проекта: Допринасяне за ускоряване на прехода към цифровизация на икономиката чрез предоставяне на безвъзмездни средства за внедряване на информационни и комуникационни технологии и решения, осигуряващи повишаване нивото на дигитализация на малките и средните предприятия
Етапи: Създаване на онлайн магазин, създаване на корпоративен уебсайт, изграждане на система за архивиране на информация
