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CL3512A CL3512A
CL3512A CL3512A CL3512A
Digital Thermometer & Calibrator Digital Thermometer & Calibrator
Digital Thermometer & Calibrator Digital Thermometer & Calibrator Digital Thermometer & Calibrator
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TM omega.com SM OMEGAnet On-Line Service Internet e-mail http://www.omega.com info@omega.com Servicing North America: USA: ISO 9001 Certified Canada: One Omega Drive, Box 4047 976 Bergar Stamford, CT 06907-0047 Laval (Quebec) H7L5A1 Tel: (203) 359-1660 Tel: (514) 856-6928 FAX: (203)359-7700 FAX: (514) 856-6886 e-mail: info@omega.com e-mail: info@omega.com For immediate technical or application assistance: USA and Canada: Mexico and Latin America: SM SM Sales Service: 1-800-826-6342 / 1-800-TC-OM
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Table of contents 1.0 Introduction 1.1 Safety Information 1.2 Unpacking 2.0 Operation Procedure 2.1 Unit Drawing 2.2 Description of Buttons and Switches 2.3 Read Mode Procedure 2.4 Source Mode Procedure 3.0 Operator Maintenance 4.0 Specifications 5.0 Calibration Procedure
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1.0 Introduction ® The OMEGA CL3512A calibrator/thermometer is two meters in one. The CL3512A simulates type J/K/T/E thermocouple signals. Each signal is adjustable by using the coarse and fine dials. The CL3512A can also be used as a dual type J/K/T/E thermocouple input thermometer. Features include a large 3½ digit display with backlighting and display selections of HOLD, °C/°F, and 0.1/1°. The source mode of the CL3512A simulates the thermocouple output to check the operation of a thermocoupl
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1.2 Unpacking Remove the packing list and verify that all equipment has been received. If there are any questions about the shipment, please call the OMEGA Customer Service Department. Upon receipt of shipment, inspect the container and equipment for any signs of damage. Immediately report any damage to the shipping agent. NOTE The carrier will not honor any claims unless all shipping material is saved for their examination. After examining and removing contents, save the packing material and ca
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2.0 Operation Proceedure 2.1 Drawing of Unit Actual Dimensions: 195mm(H) x 92mm(W) x 53mm(D) 3
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2.2 Descriptions of Buttons and Switches / Buttons Temperature is displayed in either degrees Celsius(°C) or degrees Fahrenheit(°F). When the thermometer is turned on, it is set to the temperature scale that was in use when the thermometer was last turned off. To change the temperature scale, press the °C or °F key. Button Press " " button to toggle the on and off backlight. The backlight will switch- off automatically after 30 seconds. Button (HOLD Mode) Press the HOLD key to enter the Data
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/ / Input Selections The input selection indicates which input is selected; T1 thermocouple, T2 thermocouple or the difference between the two thermocouples (T1-T2).When the thermometer is turned on, it is set to the temperature input that was in use when the thermometer was last turned off. Selector Switch The circular selector switch is used to turn the unit off (!) or to select Reading Mode (Input) or Simulation Mode (Output). There are nine selector switch positions under output which provi
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2.3 Read Mode Proceedure 1. Plug Thermocouple Sensor into input T1 and/or T2. 2. Turn selector switch to Input. 3. Select proper thermocouple type (J, K, T or E) using type button. 4. Press T1 button to read thermocouple connected to input T1. Press T2 button to read thermocouple connected to input T2. Press T1-T2 if difference between T1 and T2 is to be read. 5. To Hold reading press HOLD button. To resume making measurements press HOLD again. Note: Unit will display -OL if input is out of rang
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2.4 Source Mode Procedure (Calibration Simulation) 1. Turn CL3512A on by turning selector switch to any one of the output selector positions. 2. Press T1 button. 3. Select thermocouple type (J, K, T or E) using type button. Select °C or °F using °C or °F buttons. 4. Plug proper type of thermocouple wire into either one of the two output connectors. (SMP male connector required) 5. Attach the other end of the thermocouple wire to the instrument being tested/calibrated. 6. Move the output range sw
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Source Mode Diagram 8
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3.0 Operator Maintenance WARNING To avoid possible electrical shock, disconnect the thermocouple connectors from the thermometer before removing the cover. Battery Replacement Power is supplied by a 9 volt "transistor" battery. The " " appears on the LCD display when replacement is needed. To replace the battery, remove the two screws from the back of the meter and lift off the battery cover. Remove the battery from battery contacts. 9
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4.0 Specifications ELECTRICAL Temperature Scale: Celsius or Fahrenheit user-selectable Measurement Range: Thermocouple Range K-TYPE(0.1°C) -200°C to 1372°C , -328°F to 1999°F J-TYPE(0.1°C) -210°C to 1200°C , -346°F to 1999°F T-TYPE(0.1°C) -200°C to 400°C , -328°F to 752°F E-TYPE(0.1°C) -220°C to 1000°C , -364°F to 1832°F Calibration Range: -210°C to 1372°C, (-364°F to 1999°F) Auto range: 0.1°C/1°C , 0.1°F/1°F Accuracy: Accuracy is specified for operating temperatures over the range
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GENERAL Display: 3½ digit liquid crystal display (LCD) with a maximum reading of 1999. Polarity: Automatic,positive implied,negative polarity indication. Overrange: -OL is displayed. Zero: Automatic. Low battery indication: the" "is displayed when the battery voltage drops below the operating level. Measurement rate: 1 times/second. Accuracy: Stated accuracy at 23°C±5°C,<75% relative humidity. Dimensions: 195mm(H) x 92mm(W) x 53mm(D). Weight: approx. 9 oz. (250g) including battery. Input Connect
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5.0 CL3152A Calibration Procedure Note: The following calibration procedure should be performed only by qualified technicians who have access to the items as following items: Equipment: 1) A very accurate millivolt source. 2) A TRC III ICE Point Reference or ice bath with type K thermocouple. Input Funtion "Calibration" 1. Before turning on the meter, turn the RANGE knob to position "INPUT" and then move the jumper to the upper two pins of J5 which is at the left upper of the PCB. 2. Input DCV 2
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"Simulated Output" Test 1. Turn the knob "COARSE" right to the end, knob of RANGE turn right to the last two position, press "TYPE" key to select "TYPE-E", if display does not show "OL" then adjust VR4 slowly to make display ="OL" (Note: Take care not to adjust VR4 too far). 13
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CL3512A CALIBRATION PROCEDURES Note: The following calibration procedure should perform only by qualified technicians who have access to the items as following. Equipment: The class of calibrator had better 10 times greater than the measured meter. INPUT FUNTION CALIBRATE 1. Before turn on the meter, turn the RANGE knob to position "INPUT" and then move short pin to upper two pin of J5 which is at the left upper of PCB. 2. Input DCV 25.6mV to the T1.After the display is stabilized,then press “
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WARRANTY / DISCLAIMER OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase. OMEGA Warranty adds an additional one (1) month grace period to the normal one (1) year product warranty to cover handling and shipping time. This ensures that OMEGA's customers receive maximum coverage on each product.If the unit should malfunction, it must be returned to the factory for evaluation. OMEGA's Customer Service Departme
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Where Do I Find Everything I Need for Process Measurement and Control? OMEGA...Of Course! TEMPERATURE DATA ACQUISITION " Thermocouple, RTD & Thermistor " Data Acquisition & Probes, Connectors, Panels & Assemblies Engineering Software " Wire: Thermocouple, RTD & Thermistor " Communications-Based " Calibrators & Ice Point References Acquisition Systems " Recorders, Controllers & Process Monitors " Plug-in Cards for Apple, IBM " Infrared Pyrometers & Compatibles " Datalogging Systems PRESSURE/STRAI
