{"id":31171,"date":"2019-07-18T08:44:03","date_gmt":"2019-07-18T13:44:03","guid":{"rendered":"https:\/\/www.logicbus.com.mx\/blog\/?p=31171"},"modified":"2023-05-19T20:40:27","modified_gmt":"2023-05-19T20:40:27","slug":"como-conectar-un-sensor-de-temperatura-infrarrojo-a-un-display","status":"publish","type":"post","link":"https:\/\/www.logicbus.com.mx\/blog\/como-conectar-un-sensor-de-temperatura-infrarrojo-a-un-display\/","title":{"rendered":"C\u00f3mo conectar un sensor de temperatura infrarrojo a un display"},"content":{"rendered":"

 <\/p>\n

Para realizar esta configuraci\u00f3n se requiere:<\/p>\n

-El sensor infrarrojo de PE21LT<\/a><\/span> con configuraci\u00f3n de emisividad y resoluci\u00f3n \u00f3ptica de 2:1 y rango de temperatura de -20\u00b0C a 100\u00b0C.<\/p>\n

-El display S311A-4-H<\/a><\/span> con pantalla de 4 d\u00edgitos\/ entrada an\u00e1loga universal (V\/ mA\/ PT100\/ Termopar)\/ 14bits de resoluci\u00f3n y alimentaci\u00f3n de 80 a 265Vac.<\/p>\n

El principio que seguiremos es el de la captura de una se\u00f1al anal\u00f3gica directamente al display.<\/p>\n

1.- Conectamos las terminales del sensor hacia las terminales a tornillo del display donde PWR+ y PWR- sirven tanto para energizar el sensor como para tomar la lectura anal\u00f3gica de 4-20mA y un puente entre el conector 07 y 08, (como dato t\u00e9cnico IP+ e IP- son para el c\u00e1lculo de punto frio en caso de requerirlo):<\/p>\n

\"\"<\/p>\n

 <\/p>\n

2.- Conectamos un cable de energ\u00eda a las terminales del display, con ello daremos energ\u00eda (120VCA) al display tal cual se muestra en la siguiente imagen:<\/p>\n

\"\"<\/p>\n

 <\/p>\n

3.- Una vez conectado todo energizamos conectando el contacto a la toma el\u00e9ctrica convencional. El display al tener una se\u00f1al de entrada va a reconocer de manera autom\u00e1tica el tipo de se\u00f1al. Queda \u00fanicamente configurar la escala a la que queremos visualizar la se\u00f1al y comenzar a tomar datos:<\/p>\n

\"\"<\/p>\n

 <\/p>\n

3.1.- Esta configuraci\u00f3n es \u00fanicamente para visualizar datos en la pantalla, si usted quiere retransmitir la se\u00f1al a un PLC o a una tarjeta de adquisici\u00f3n de datos\u00a0 puede optar por el display S311A-6-H-O<\/span><\/a> que adem\u00e1s de retransmitir la se\u00f1al tiene 2 salidas a relevador para alarmas o actuadores.<\/p>\n

El sensor tiene un protector removible en la parte frontal que, si se deja en el sensor sirve para medir la temperatura ambiente:<\/p>\n

\"\"<\/p>\n

 <\/p>\n

Tambi\u00e9n tiene una punta roscada y viene con una tuerca para que el sensor pueda ser adaptado a su proceso con una base:<\/p>\n

\"\"<\/p>\n

 <\/p>\n

Tiene una carcasa de acero inoxidable, sellos en la parte posterior y frontal para garantizar una protecci\u00f3n IP65:<\/p>\n

\"\"<\/p>\n

 <\/p>\n

El display tiene segmentos led retroiluminados que permiten ver los datos en ambientes de poca luz:<\/p>\n

\"\"<\/p>\n

 <\/p>\n

Las especificaciones t\u00e9cnicas del sensor empleado son:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Technical specifications<\/strong><\/span><\/td>\n<\/tr>\n
General<\/strong><\/span><\/td>\n<\/tr>\n
Output<\/span><\/td>\n4~20mA<\/span><\/td>\n<\/tr>\n
Accuracy<\/span><\/td>\n+\/- 1% reading or +\/- 1 \u00b0 C whichever is greater<\/span><\/td>\n<\/tr>\n
Repeatability<\/span><\/td>\n+\/- 0.5% reading or +\/- 0.5 \u00b0 C, whichever is greater<\/span><\/td>\n<\/tr>\n
Emissivity<\/span><\/td>\n0.2 to 1.0 via 4 ~ 20mA input<\/span><\/td>\n<\/tr>\n
Response time<\/span><\/td>\n240 ms (90% response)<\/span><\/td>\n<\/tr>\n
Spectral range<\/span><\/td>\n8 to 14 \u00b5m<\/span><\/td>\n<\/tr>\n
Supply voltage nominal<\/span><\/td>\n24 VDC (28 VDC max)<\/span><\/td>\n<\/tr>\n
Sensor voltage<\/span><\/td>\nmin. 6 VDC<\/span><\/td>\n<\/tr>\n
Loop impedance<\/span><\/td>\nmax. 900 O (4 ~ 20 mA output)<\/span><\/td>\n<\/tr>\n
Output impedance<\/span><\/td>\n56 O<\/span><\/td>\n<\/tr>\n
Mechanics<\/strong><\/span><\/td>\n<\/tr>\n
Construction<\/span><\/td>\nStainless steel<\/span><\/td>\n<\/tr>\n
Dimensions<\/span><\/td>\n18 mm in diameterx103 mm in length<\/span><\/td>\n<\/tr>\n
Mounting of thread<\/span><\/td>\nM16x1 mm<\/span><\/td>\n<\/tr>\n
Cable length<\/span><\/td>\n1 m<\/span><\/td>\n<\/tr>\n
Weight including cable<\/span><\/td>\n95 gr<\/span><\/td>\n<\/tr>\n
Environment<\/strong><\/span><\/td>\n<\/tr>\n
Environmental classification<\/span><\/td>\nIP65<\/span><\/td>\n<\/tr>\n
Ambient temperature range<\/span><\/td>\n0\u00b0C to 70\u00b0C<\/span><\/td>\n<\/tr>\n
Relative humidity<\/span><\/td>\n95% max. no condensation<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Las especificaciones t\u00e9cnicas del display son:<\/span><\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
ANALOG INPUT MODULAR INDICATORS \/ TOTALIZERS<\/strong><\/span><\/td>\n<\/tr>\n
GENERAL DATA<\/strong><\/span><\/td>\n<\/tr>\n
Power supply<\/span><\/td>\n80-265 Vac (H version)<\/span>
\n10-40 Vdc \/ 19-28 Vac (L version)<\/span><\/td>\n<\/tr>\n
Power transducers<\/span><\/td>\nMax 18 V, 25 mA<\/span><\/td>\n<\/tr>\n
Power consumption<\/span><\/td>\nMax 3 W<\/span><\/td>\n<\/tr>\n
Isolation<\/span><\/td>\n1.500 Vac<\/span><\/td>\n<\/tr>\n
Communication interface<\/span><\/td>\nModBUS RTU slave (optional board)<\/span><\/td>\n<\/tr>\n
Memory<\/span><\/td>\nEEPROM 10 years, storage memory<\/span><\/td>\n<\/tr>\n
VISUALIZATION AND MEASURE<\/strong><\/span><\/td>\n<\/tr>\n
Display<\/span><\/td>\nLED, 4 digit<\/span><\/td>\n<\/tr>\n
Status indicators<\/span><\/td>\n2 alarm leds (enabled threshold trips)<\/span><\/td>\n<\/tr>\n
Front Buttons<\/span><\/td>\n3 navigation keys<\/span><\/td>\n<\/tr>\n
Display errors<\/span><\/td>\nOver range, fault sensor<\/span><\/td>\n<\/tr>\n
Accuracy<\/span><\/td>\n0,10%<\/span><\/td>\n<\/tr>\n
Stability<\/span><\/td>\n0,01%\/K<\/span><\/td>\n<\/tr>\n
Linearity error<\/span><\/td>\n0,2\u00b0C (Pt100)<\/span>
\n0,5\u00b0 (TC J,K,E,N,T)<\/span>
\n1\u00b0C (TC R,S)<\/span>
\n2\u00b0C (TC B)<\/span>
\n0,05% (0-10 V, 0-20 mA)<\/span><\/td>\n<\/tr>\n
Cold joint<\/span><\/td>\n\u00b11,5\u00b0C<\/span><\/td>\n<\/tr>\n
INPUT DATA<\/strong><\/span><\/td>\n<\/tr>\n
CH<\/span><\/td>\n1<\/span><\/td>\n<\/tr>\n
Type<\/span><\/td>\nVoltage: 0-10 V<\/span>
\nActive \/ passive current: 0-20 \/ 4..20 mA<\/span>
\nPotentiometer: 1..100 k1<\/span>
\nPt100 2,3,4 wire (IEC 751 \/ EN<\/span>
\n60751 \u2013 ITS90)<\/span>
\nThermocouple J,K,R,S,T,B,E,N<\/span><\/td>\n<\/tr>\n
Resolution<\/span><\/td>\n14 bit<\/span><\/td>\n<\/tr>\n
Sampling time<\/span><\/td>\n20 ms<\/span><\/td>\n<\/tr>\n
Reset (totalizer)<\/span><\/td>\nYes: by digital input and front keys<\/span><\/td>\n<\/tr>\n
THEMOMECHANICS DATA<\/strong><\/span><\/td>\n<\/tr>\n
Operating temperature<\/span><\/td>\n-10..+60 \u00b0C<\/span><\/td>\n<\/tr>\n
Enclosure<\/span><\/td>\nPPO self-extinguish DIN 43700<\/span><\/td>\n<\/tr>\n
Protection degree<\/span><\/td>\nIP65 (frontal)<\/span><\/td>\n<\/tr>\n
Terminal blocks<\/span><\/td>\nRemovable, step 3,5 \u2013 5,08 mm<\/span><\/td>\n<\/tr>\n
Dimension (W x H x D)<\/span><\/td>\n96x48x98 mm<\/span><\/td>\n<\/tr>\n
Panel cut -out<\/span><\/td>\n91×45 mm<\/span><\/td>\n<\/tr>\n
Weight<\/span><\/td>\n200 g<\/span><\/td>\n<\/tr>\n
SETTINGS, NORMS<\/strong><\/span><\/td>\n<\/tr>\n
Software \/ settings<\/span><\/td>\nDisplay parameters, alarms, signals, timeout, reset, trips<\/span><\/td>\n<\/tr>\n
Calibration<\/span><\/td>\nYes, factory-made<\/span><\/td>\n<\/tr>\n
Norms<\/span><\/td>\nEN 61000-6-4\/2002, EN 61000-6-2\/2005, EN 61010-1\/2001<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

Aqu\u00ed un video de su funcionamiento:<\/p>\n