Page 2 - OMEGAnet
Servicing North America: USA: One Omega Drive, Box 4047 ISO 9001 Certified Stamford CT 06907-0047Tel: (203) 359-1660 FAX: (203) 359-7700 e-mail: [email protected] Canada: 976 BergarLaval (Quebec) H7L 5A1, CanadaTel: (514) 856-6928 FAX: (514) 856-6886 e-mail: [email protected] For immediate technical or app...
Page 5 - Standard Equipment; Symbols Used; Symbol; Battery
1. Introduction The OMEGA PCL340 Series is designed to be a simple to use yetvery versatile pressure calibrator. Its internal pressure sensorcombined with inputs for mA, voltage and switch contacts allow thePCL340 Series to calibrate a variety of pressure devices. An externalpressure module option a...
Page 6 - Warning; To avoid possible electric shock or personal injury:
Symbol Description Double Insulated Electric Shock Fuse PE Ground Hot Surface (Burn Hazard) Read the User’s Manual (Important Information) Off On The following definitions apply to the terms “Warning” and “Caution”. • “Warning” identifies conditions and actions that may pose hazards to the user. • “...
Page 7 - Caution; To avoid possible damage to calibrator or to equipment under test:
3 • Select the proper function and range for your measurement. • Make sure the battery cover is closed and latched before you operate the calibrator. • Remove test leads from the calibrator before you open the battery door. • Inspect the test leads for damaged insulation or exposed metal. Check test...
Page 8 - Calibrator Interface; Figure 1; Description; Side View
2. Calibrator Interface Figure 1 shows the location of the process measurement inputs,while table 1 describes their use. Figure 1 Process Measurement Inputs Table 1 Process Measurement Inputs No. Name Description 1, 2 Input Terminals These terminals are used to measure current, voltage and a contact...
Page 9 - Calibrator Display
Figure 2 Keypad Table 2 Key Functions No. Name Description 1 Function Keys These keys are used in various ways, primarily toconfigure the calibrator 2 ON/OFF Key This key is used to turn the calibrator on and off 3 ZERO Key This key is used to zero pressure measurements 4 Backlight Key This key is u...
Page 11 - CURRENT DISPLAY
7 OTHER DISPLA YS With a single display the following modes are available: P[1] = Pressure on left side sensor. [EXT] = Pressure with external pressure module. P[1] ST = Switch Test with left side sensor. [EXT] ST = Switch Test with external pressure module. mA = Milliamps measure without loop power...
Page 13 - A note on naming convention:
9 2.2 Using the Backlight The backlight is controlled by the dedicated backlight key. It toggleson and off when the key is pressed; this is one of the few functionsthat cannot be controlled by the serial interface. 2.3 Using the Zero Function When the ZERO_KEY is pressed, the calibrator will zero th...
Page 14 - Locking and Unlocking Configurations
10 2.4.1 Setting the Contrast From the Contrast Main Menu choose the CONTRAST option toaccess the Contrast Adjustment Menu. Use the arrow keys to adjust the display contrast to the desired leveland then use the CONTRAST DONE option to return home. 2.4.2 Locking and Unlocking Configurations Use the L...
Page 15 - Activating and Deactivating a Display
11 2.4.4 Setting AutoShut-off Parameters The calibrator can be set to automatically shut-off after a selectednumber of minutes; this function can also be disabled. To set theauto shut off parameters select the AUTO OFF option on the AutoShut Off Main Menu. Use the arrow keys to select the number of ...
Page 16 - Measuring Pressure; Figure 5; Media Compatibility
12 configurations of the other currently active displays, if theconfigurations are in conflict the recalled display’s configuration ismodified to avoid the conflict. If all three displays are deactivated theLOWER display will come on automatically 3. Measuring Pressure To measure pressure, connect t...
Page 17 - Figure 6
13 including gauge, vacuum, differential and absolute. The moduleswork seamlessly with the calibrator. Simply plug them into theinterface and select [EXT] (external sensor). Since the interfacebetween the calibrator and the module is digital all the accuracy anddisplay resolution is derived from the...
Page 19 - Performing a Pressure Switch Test
6. Performing a Pressure Switch Test Figure 10 To perform a switch test, follow these steps: 1. Change the setup to Setup 4 (default switch test). Setup 4: The upper display is set to [P1] ST, all other displaysare off. Important NOTE: The pressure Switch Test can be performed with the following fun...
Page 21 - Calibrating Transmitters; Using the mA Input Function
17 9. Press the “NEW TEST” option to clear the data and performanother test. 10. Press the “DONE” option to end the test and return to the standard pressure setting. Example: [P1] ST will return to [P1]. Important NOTE: The previous example uses a normally closed switch. The basic procedure is still...
Page 22 - Percent Error Function
18 7.2 Calibrating a Pressure-to-Current Transmitter To calibrate a pressure-to-current transmitter (P/I), perform thefollowing steps: 1. Connect the calibrator and the pump to the transmitter. 2. Apply pressure with the pump. 3. Measure the current output of the transmitter. 4. Ensure the reading i...
Page 26 - Setup 3: The upper display is set to [P1] mode and the middle is set
22 Setup 3: The upper display is set to [P1] mode and the middle is set to [VOLTS] mode, lower is off. Setup 4: The upper display is set to [P1], the lower display is set to [EXT]. Setup 5: The upper display is set to [P1], and the lower display is set to mA Loop.
Page 27 - Remote Interface; With this connection; Setting up the RS-232 Port for Remote Control; Serial parameter values:
23 9. Remote Operation 9.1 Remote Interface The calibrator can be remotely controlled using a PC terminal, or bya computer program running the calibrator in an automated system.It uses an RS-232 serial port connection for remote operation. NOTE: To use the remote control option a custom RS-232cable ...
Page 28 - Changing Between Remote and Local Operation
24 To 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 procedure: 1. Start Hyper Terminal (located in Accessories/Communications ofthe Windows Start menu) 2. Select New Connection. 3. For Name enter PCL340. Se...
Page 31 - Remote Commands and Error Codes; Table 5: Common Commands
9.5 Remote Commands and Error Codes The following tables list all commands, and their descriptions, thatare accepted by the calibrator. Table 5: Common Commands Command Description *CLS (Clear status.) Clears the error queue. *IDN? Identification query. Returns the manufacturer, modelnumber, and fir...
Page 33 - Entering Commands
29 Table 8: Error Codes Error Number Error Description 100 A non-numeric entry was received where it should be anumeric entry 101 Too many digits entered 102 Invalid units or parameter value received 103 Entry is above the upper limit of the allowable range 104 Entry is below the lower limit of the ...
Page 40 - Replacing Batteries; Use only AA size alkaline batteries or optional rechargeable; Cleaning the Unit; Service Center Calibration or Repair
11. Maintenance 11.1 Replacing Batteries Replace batteries as soon as the battery indicator turns on to avoidfalse measurements. If the batteries discharge too deeply thePCL340 will automatically shut down to avoid battery leakage. Note: Use only AA size alkaline batteries or optional rechargeable b...
Page 43 - RETURN REQUESTS/INQUIRIES
WARRANTY/ DISCLAIMER O M EG A E N G I N E E R I N G , I N C . wa rr a n t s t h i s u n i t t o b e f r e e o f d e f e c t s i n m a t e r i a l s a n dworkmanship for a period of 13 months from date of purchase. OMEGA’s Warranty adds an additional one (1) month grace period to the normal one (1) y...
