Omega PCL340 - Manuals

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...

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...

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...

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...

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...

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...

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 ...

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...

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...

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...

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...

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...

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.

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 ...

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...

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...

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 ...

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...

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...