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Summary of Contents for Omega PCL120
- Page 1 User’s Guide Shop online at omega.com e-mail: info@omega.com For latest product manuals: w.omegamanual.info NORWALK, CT PCL120 Precision Loop Calibrator...
- Page 2 For Other Locations Visit omega.com/worldwide The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and reserves the right to alter specifications without notice.
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Page 3: Table Of Contents
Table of Contents 1. Introduction 1.1 Customer Service ....1 1.2 Unpacking ..... . .1 1.3 Safety Information . -
Page 5: Introduction
PCL120 1. Introduction The OMEGA PCL120 is designed to be a complete 4 to 20mA current calibrator for both trouble-shooting and calibrating current loops. Very high accuracy combined with several unique features makes the PCL120 an easy to use and highly calibration tool. - Page 6 Symbol Description AC (Alternating Current) AC-DC Battery CE Complies with European Union Directives Double Insulated Electric Shock Fuse PE Ground Hot Surface (Burn Hazard) Read the User’s Manual (Important Information) Canadian Standards Association The following definitions apply to the terms “Warning” and “Caution”. •...
- Page 7 Warning To avoid possible electric shock or personal injury: • Do not apply more than the rated voltage. See specifications for supported ranges. • Follow all equipment safety procedures. • Do not use the calibrator if it is damaged. Before you use the calibrator, inspect the case.
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Page 8: Nomenclature
3. Getting Started A. Battery Save Feature After unpacking the PCL120, it should be ready for use. A 9 volt alkaline battery comes pre-installed. The “Battery Save” feature is enabled and set to 30 minutes in case the unit is accidentally turned on in transit. The battery save feature will turn off the PCL120 automatically if no keys are pressed after 30 minutes. -
Page 9: Hart Resistor Setup
The PCL120 offers 4 modes of milliamp operation and one voltage measure mode. The following text and figures explain the various operating modes: A. Milliamp Source Figure 3 shows a typical application where the PCL120 is sourcing 4 to 20 mA into a device under test. -
Page 10: Milliamp Simulation
1) Turn on the PCL120. It will default to the mA source mode. 2) Connect the device to be calibrated. Warning: The loop must be closed for the PCL120 to source current. If an open loop occurs “OL” will flash on the LCD indicating an overload or open condition. -
Page 11: Milliamp Measure
Figure 4 - Simulating 4 to 20 mA C. Milliamp Measure Figure 5 shows how to connect the PCL120 to measure a 4-20 mA loop. In this application the PCL120 is simply reading the loop current and displaying the current in mA on the main display. The lower (smaller) display area is showing percentage relative to a 4 to 20 mA span. -
Page 12: Voltage Measure
NOTE: The loop power mode can only be enabled while in the mA measure mode. E. Voltage Measure Figure 6 shows how to connect the PCL120 to measure DC voltage up to MODE 28 volts. To activate the volts measure function simply press the key to toggle through the functions until the volts measure mode is reached. -
Page 13: Percent Error Mode
% error display. The procedure is as follows: 1) Connect the PCL120 to the unit under test. 2) Place the PCL120 in one of the mA output modes (source or simulate). 3) Adjust the PCL120 to the desired output. -
Page 14: Maintenance
Because of this protection no maintenance is required. C. Calibration The PCL120 is designed to hold its rated accuracy for a minimum of one (1) year. It is therefore recommend that an annual re-calibration be done to ensure operation within specification. Contact OMEGA’s Customer Service Department for re-calibration information at 1-800-826-6342 or www.omega.com. -
Page 15: Specifications
7. Specifications Input Range: 0.000 to 24.000 –25.00% to 125.00% Output Range 0.000 to 24.000 Source/Simulate: –25.00% to 125.00% Read VDC: 0 to 30 VDC Accuracy : ±0.015% of reading ±2 counts Resolution: .001 mA; .001 volts Loop Supply Voltage: 24 VDC Typical Drive Capability: 1200... - Page 17 Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification.
- Page 18 Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! Shop online at omega.com TEMPERATURE Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies Wire: Thermocouple, RTD & Thermistor Calibrators & Ice Point References Recorders, Controllers & Process Monitors...
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