Omega PCL340 Manual de usuario

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6Figure 3 DisplayTable 3 Display FunctionsNo. Name Description 1 Primary Parameters Indicates what is being measured. 2 Span Indicator Indicate

7OTHER DISPLAYSWith a single display the following modes are available:P[1] = Pressure on left side sensor.[EXT] = Pressure with external pressure mod

8Figure 4 Menu Map

92.2 Using the BacklightThe backlight is controlled by the dedicated backlight key. It toggleson and off when the key is pressed; this is one of the

102.4.1 Setting the ContrastFrom the Contrast Main Menu choose the CONTRAST option toaccess the Contrast Adjustment Menu. Use the arrow keys to adjust

112.4.4 Setting AutoShut-off ParametersThe calibrator can be set to automatically shut-off after a selectednumber of minutes; this function can also b

12configurations of the other currently active displays, if theconfigurations are in conflict the recalled display’s configuration ismodified to avoid

13including gauge, vacuum, differential and absolute. The moduleswork seamlessly with the calibrator. Simply plug them into theinterface and select

Figure 75. Measuring VoltageTo measure voltage use the input terminals in the front of thecalibrator. Select the Volts function on one of the display

6. Performing a Pressure Switch TestFigure 10To perform a switch test, follow these steps:1. Change the setup to Setup 4 (default switch test).Setup

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5. Apply pressure with the pump slowly until the switch opens. Important NOTE: In the switch test mode the display update rate isincreased to help ca

179. Press the “NEW TEST” option to clear the data and performanother test.10. Press the “DONE” option to end the test and return to thestandard press

187.2 Calibrating a Pressure-to-Current TransmitterTo calibrate a pressure-to-current transmitter (P/I), perform thefollowing steps:1. Connect the cal

19Figure 12.Example:Suppose a pressure transmitter under test is 30 psi (2 Bar) Full Scaleand outputs a corresponding 4 to 20 mA signal. The user can

204. LOOP POWER can be toggled on/off, select NEXT when done.5. Use SELECT to toggle through the UNIT options, and select NEXTto move on.6. Use the ↑

21Note: The 0% and 100% point will be saved in non-volatile memoryuntil they are changed again by the user for the internal sensors, andexternal press

22Setup 2: The upper display is set to [EXT] mode and the middle isset to mA, lower is off. Setup 3: The upper display is set to [P1] mode and th

2310. Remote Operation10.1 Remote InterfaceThe calibrator can be remotely controlled using a PC terminal, or bya computer program running the calibra

24To set up remote operation of the calibrator on the Windows HyperTerminal, connected to a COM port on the PC as in Figure 23, usethe following proce

25The calibrator may be controlled using commands and queries. Allcommands may be entered using upper or lower case. Thecommands are divided into the

1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11.1 Contacting OMEGA . . . . . . . . . . .

IntegerFor most computers and controllers they are decimal numbersranging from -32768 to 32768. For example:FAULT? could return 110Refer to the Error

10.5 Remote Commands and Error CodesThe following tables list all commands, and their descriptions, thatare accepted by the calibrator. Table 5: Commo

28ST_START Starts a switch test ST_OPEN? Returns pressure value at which the switch opened ST_CLOSE? Returns pressure value at which the switch

29Table 8: Error CodesError Number Error Description100 A non-numeric entry was received where it should be anumeric entry 101 Too many digits ent

3010.6.2 Calibrator CommandsDAMPTurns the dampening function on or off.For example:If you send DAMP ON this will turn the dampening functionon. DAMP?R

31ERROR _LOOPTurns loop power on or off in percent error mode.For example:To set loop power on send ERROR_LOOP ON.ERROR _LOOP?Returns the current stat

FUNCSets the display indicated in argument one to the functionindicated in argument 2.For example:To set the lower display to P1 Pressure mode send FU

LO_ERRSets the 0% point for the percent error mode calculation in thecurrent engineering units.For example:To set the 0% point to 20 psi send LO_ERR 2

ST_DEAD?Returns deadband of the switch in the current pressure units.VAL?Returns the value of any measurement taking place on the upperand lower displ

11. Specifications (18 °C to 28 °C unless otherwise noted.)GeneralInstrument Setup Recall 5; last used on power-upEnvironmentalOperating Temperature

12. Maintenance12.1 Replacing BatteriesReplace batteries as soon as the battery indicator turns on to avoidfalse measurements. If the batteries discha

WARRANTY/DISCLAIMEROMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials andworkmanship for a period of 13 months from date of

Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course!Shop online at www.omega.comTEMPERATUREMUThermocouple, RTD &

1. IntroductionThe OMEGA PCL340 Series is designed to be a simple to use yetvery versatile pressure calibrator. Its internal pressure sensorcombined w

Symbol DescriptionDouble InsulatedElectric ShockFusePE GroundHot Surface (Burn Hazard)Read the User’s Manual (Important Information)OffOnThe following

3• Select the proper function and range for your measurement.• Make sure the battery cover is closed and latched before youoperate the calibrator.• Re

2. Calibrator Interface Figure 1 shows the location of the process measurement inputs,while table 1 describes their use.Figure 1 Process Measurement I

Figure 2 KeypadTable 2 Key FunctionsNo. Name Description 1 Function Keys These keys are used in various ways, primarily toconfigure the calibrator