Lumel | Automation devices and systems | SMT/THT assembly | Lumel
User Manual for LUMEL models including: P18L, Humidity and Temperature Transducer, Temperature Transducer, Humidity Humidity, Humidity
May 14, 2022 — Application. The P18L transducer is a device destined for the continuous conversion of relative humidity or ambient temperature into a standard analog cur-.
14 mag 2022 — nel acc. to the section 3.2. of the user's manual. ... missioning, and operation of the product and who have qualifications ... t10/90: 15 s. Building.
File Info : application/pdf, 13 Pages, 374.52KB
DocumentDocumentTEMPERATURE AND HUMIDITY TRANSDUCER SUPPLIED FROM A CURRENT LOOP P18L USER'S MANUAL 1 2 Contents 1. Application ...................................................................... 2 2. Basic requirements, operational safety ....................... 2 3. Installation ...................................................................... 2 3.1. Assembly .................................................................. 2 3.2. Electrical connections ............................................... 3 4. Servicing ......................................................................... 4 5. Accessories .................................................................... 4 6. Technical data ................................................................ 5 7. Before a failure will be declared ................................... 5 8. Oredering codes ............................................................. 6 3 4 1. Application The P18L transducer is a device destined for the continuous conversion of relative humidity or ambient temperature into a standard analog current signal. The transducer is fixed on a wall. Applied sensor shields enable the application of the P18L transducer in various ambient conditions 2. Basic requirements, operational safety In the security scope, the transducer meets the requirements of the EN 61010 -1 standard. Remarks concerning the operator safety: 1. General l All operations concerning transport, installation, and commissioning as well as maintenance must be carried out by qualified, skilled personnel acc. to the section 3.2. of the user's manual. l According to this basic safety information, qualified, skilled personnel are persons who are familiar with the installation, assembly, commissioning, and operation of the product and who have qualifications necessary for their occupation. l In order to avoid any damage, before switching the supply on, it is recommended to ensure that all wires were correctly connected. Before the transducer assembly, one must pass supplying wires through the packing. Screw the packing seal in order to obtain the leaktightness. If the packing seal is not screwed, we cannot ensure the required IP65 leaktightness. When unpacking the P18L transducer, please check whether the type and version code on the data plate correspond to the order code. 3. Installation 3.1. Assembly The P18L transducer is designed to be mounted on a wall by means of a screw connection or glue without the loss of IP 65 tightness. 5 The transducer housing is made of a self-extinguishing plastics. Housing dimensions: 64 x 58 x 35 mm. The transducer has screw connectors placed inside the transducer, which enable the connection of external wires of 1 mm2 cross-section. Overall dimensions and the fixing way are shown on the fig. 1 Fig 1. Overall dimensions of the P18L transducer Mounting holes Fig.2. Lay-out of assembly holes of the P18 transducer 6 3.2. Electrical connections The P18L transducer has 2 connecting terminals to which there is access after removing the cover of the transducer housing. Fig.3 Marking of terminals for the connection of external signals Fig. 4 Way of transducer electrical connections In case of the transducer work in an environment with high interference, one must apply shielded wires. The shield must be connected to the nearest PE point from the feeder side. 7 4. Servicing After connecting wires, closing and servicing the housing, and switching to the supply on, the transducer is ready to work. The correct measurement result appears only after the time of the measurement initialisation ca 2.5 minutes. After this laps of time, the analog output is correctly steered on. The transducer converts the temperature or relative humidity into a 4-20 mA standard current signal. The choice of the converted quantity is realized by means of the jumper Nr 1 of the 3-position switch placed on the transducer plate. If the jumper Nr 1 is in the position "ON", the transducer converts the relative humidity. (Fig. 5). a) b) Fig. 5 Choice of the converted quantity: a) temperature, b) relative humidity 5. Accessories As a standard, the P18L transducer is equipped with a metallic shield of the sensor, destined only for indoors application. For other applications it is recommended to use additional sensor shields, depending on the transducer operation conditions. 8 Sensor protection shields Table 1 Item Order code Design Name Construction Features Typical application 1 20-015-0000011 Casing made of Membrane filter PC, Membrane of teflon laminated by a film. Pore size: 1 mm Mean filtration effect. Maximal temp.: up to 80°C Response time: t10/90: 15 s Building automation. In rooms with low pollution. 2 20-015-0000007 3 20-015-0000003 Filter Sintered teflon. made of Pore size: teflon 50 mm High chemical resistance.. Maximal temp.: up to 180°C Response time: t10/90: 14 s Drying process in chemical applications Filter made of sintered bronze Sintered bronze. Pore size: 60 mm High mechanical resistance. To co-opera- Agricultural te with high applications pollution. Applied at small air humidity. Response time: t10/90: 10 s 9 6. Technical data Basic parameters: - range of relative humidity measurement (RH) - basic error of relative humidity conversion 1) - hysteresis of the humidity measurement (T) - range of temperature measurement (T) - basic error of temperature conversion - additional errors - temperature influence Analog output: - current - maximal load resistance of the current output Rated operating conditions: - supply - consumption - ambient temperature - relative air humidity - rate of air flow 0...100% without condensation1) ± 2% for RH = 10...90% ± 3% for remaining range ± 1% RH 20...60°C ± 0.5% of the range ± 25% of the basic error/10°C 4... 20 mA 500 W 19...30 V d.c. < 1.5 VA 30...23...85°C < 95% (admissible condensation) 2 m/s 1) In case of water vapour condensation on the sensor surface, the maximal error can increase to 3% RH 10 - pre-heating time - protection degree ensured by the housing - fixing - weight - dimensions - work position: l in applications non-exposed to a direct contact with water l in applications exposed to a direct contact with water 15 minutes IP 65 on a wall 125 g (35 ´ 58 ´ 118) mm any with the sensor chamber directed towards the ground. Electromagnetic compatibility: - immunity noise - emission noise acc. to EN 61000-6-2 acc. to EN 61000-6-4 Security requirements: - installation category - pollution grade - working voltage in relation to the earth acc. to EN 61010-1 III 2 50V 7. Before a failure will be declared Possibilities of incorrect work of the P18L transducer Table 2. Symptoms Data inconsistent with our expectations appear on the transducer output. Procedure In the version with analog outputs, check parameters of the individual characteristic of analog outputs. 11 8. Ordering codes Ordering codes of P18L transducer versions Table 3. Code P18L 000 Description Temperature and humidity transducer P18L, built-in temperature and humidity sensor, supplied from a current loop, 1 x analog output 4 ... 20 mA; without any extra requirements 12 LUMEL S.A. ul. Slubicka 4, 65-127 Zielona Góra, Poland tel.: +48 68 45 75 100, fax +48 68 45 75 508 www.lumel.com.pl Technical support: tel.: (+48 68) 45 75 143, 45 75 141, 45 75 144, 45 75 140 e-mail: export@lumel.com.pl Export department: tel.: (+48 68) 45 75 130, 45 75 132 e-mail: export@lumel.com.pl Calibration & Attestation: e-mail: laboratorium@lumel.com.pl 13 P18L-09_R1