
STR551 Universal Input Panel Meter for Process Signals with Graphical Display
Universal Sensor Input -Thermocouples - Type K, S, R, J, T, E, N, B; RTDs, Thermistors, Voltage, Current, Potentiometer Fast Sample Rate Alarms/Control Outputs Analog Output Graphical Display Data Logger Math Functions Totalizer Feature Digital Inputs RS485 Serial Communications 12/24Vdc Sensor Power Supply USB or NFC Programming Universal Power Supply The STR551 is a universal input 1/8 DIN indicator/panel meter with a host of features allowing it to be used as a data logger, on/off controller, analog/digital transmitter and totalizer. Its easy read screen can display data in a digital and graphic format. With a universal power supply only one model is required to for all applications.Universal Sensor InputThe STR551 can accept inputs from almost any type of process sensor. It supports the following sensors: Thermocouples - Type K, S, R, J, T, E, N, B RTDs - PT100, PT500, PT1000, Ni100 Thermistors - PTC1K, NTC10K (ß 3435K) Voltage/Current - 0-60mVdc, 0-10Vdc, 0-20mA, 4-20mA Potentiometer: 6KΩ, 150KΩ Fast Sample RateThe sample rate of the STR551 is adjustable and can be set as fast as 42Hz (4.2ms) or as slow as 4Hz(240ms). Other speed setting are also available including 50Hz and 60Hz which is useful for AC noise rejection.Alarms/Control OutputsThe STR551 has two 2A relays which can be used for control and alarm purposes. The alarms can have hysteresis making them suitable for on/off control. They can be configured for manual reset so the STR551 can even act as a limit controller.Analog OutputThe STR551 can have either a 4-20mA(0-20mA) or 0-10Vdc analog output that can be used for retransmission of the process variable or alarm values. The analog output can also be directly controlled by Modbus communications.TotalizerThe analog input can be a totalizer for flow applications. In this mode the instantaneous input will sum over time.Graphical DisplayThe easy to read screen features an intuitive multilingual interface and a 128x64 pixel graphical OLED display (monochrome yellow).Visualization options include bargraph and process trend with programmable sampling time.Math FunctionsThe STR551 has the ability to display peak, totalizer and sum functions.Data LoggerThe STR551 implements a basic data logger function. It stores the process data in EEPROM memory, the sampling time can be selected from 1 to 3600s with a total 2,500 stored points. The data can be read via Modbus or via wireless reading the RFID memory directly.Digital InputsThe two digital inputs are multi-function and can be used for the followingRun - allows the action of relays and linear outputHold the ConversionTare ZeroAlarm ResetTotalizer ResetPeaks ResetSum totalSerial CommunicationsThe STR551 is equipped with RS485 and can receive and broadcast data via serial communication using MODBUS RTU protocol.USB or NFC ProgrammingThe STR551 may be programmed by USB or NFC using either LabsoftView (Windows/USB) or MyPixSys NFC App.Universal Power SupplyThe universal power supply allows the STR551 to operate from a wide variety of power sources ranging from 24 to 230 Vac/dc. [to_order_table] To Order (scroll to top of page and add to cart) PART NUMBERS DESCRIPTION STR551-12ABC-T128R STR551 universal input indicator [to_order_table] Downloads STR551 Data Sheet STR551 User Manual STR551 3D Model SPECIFICATIONSAnalog InputsThermocouple: type K, S,R, J, T, E, N, BRTD: PT100, PT500, PT1000, Ni100Thermistor: PTC1K, NTC10K (ß 3435K)Voltage/Current: 0-10V, 0-20mA, 4-20mA, 0-60mVPotentiometer: 6KO, 150KOAccuracy: +/-0.2% ±1 digit (F.S.), Cold junction accuracy 0.1°C/°CImpedance:0-10 V: Ri>110 KO0-20 mA: Ri<5O4-20 mA: Ri<5O0-60 mV: Ri>1MORelay Outputs: Two SPST rated at 2A, 250V ResistiveAnalog Outputs: one 0-10Vdc, one 0/4-20mA, 16bit +/-0.2% (F.s.)Digital Inputs: 2 PNP Display: 2.42" monochrome (yellow) OLED graphical displayOperating Conditions: Temperature - 0 to 40 °C, Humidity 35 to 95RH%Protection: IP54 front panel (with gasket) - IP20 box and terminalsMaterial: Box- polycarbonate V0Weight: Approx. 165gCutout Size: 1/8DIN (46 x 91mm) Power Supply: 24-230 Vac/Vdc ±15% 50/60HzPower Consumption: 8 VA