OMEGA PCL9001-30 (01) PDF MANUAL

Before attempting to interface the PCL9001 with any other device, carefully read the provided instructions.

Upon receipt of shipment, you should:

1. Remove the Packing List and verify that all equipment has been received.

2. Inspect the container and equipment for any signs of damage. Take particular note of any evidence of rough handling in transit. 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 packing material and carton in the event reshipment is necessary.

The Calibrator only option includes:

• Carrying Case

• Test Leads

• Batteries already installed

• Allen Wrench

• Teflon Tape

• Instructions & Specifications

The Calibrator Kit includes:

• Carrying Case

• Test Leads

• Batteries already installed

• Allen Wrench

• Teflon Tape

• Instructions & Specifications

• Battery Eliminator/Charger

• Pump

Remove the sliding battery cover door located on the bottom of the instrument and verify battery installation.

Become familiar with the designation and polarities of the five jacks located below the keypad of the calibrator. Refer to the back panel for polarity information.

The connection for the RS-232 port is located on the right hand side of the calibrator. This connection is only used when data communication is required between the PCL9001 and another device.

1. Turn on calibrator and select desired range by pressing the “Range Select” key.

2. If electrical measurements are being made, select either volts or milliamps using the “Volts/mA” key.

3. Electrical connections for milliamps are shown in figure 1 (described in a separate question).

4. Pressure connections are made to the manifold via 1/8 NPT connectors which are user supplied.

5. If using an optional hand pump, follow the specific setup instructions.

6. Before any pressure measurements can be made, the calibrator must be zeroed out by pressing the zero key when the calibrator is exposed to ambient pressure. It is advisable to do this often.

7. The “Send Data” key is used only when the PCL9001 is connected to a data collection device via the RS-232 port.

For current load:

Connect the positive terminal of the “Device Under Test” to jack 2(+).

Connect the negative terminal of the “Device Under Test” to the positive terminal of the “Current Output Device”.

Connect the negative terminal of the “Current Output Device” to jack 3(-).

Jack 1 is unused.

For current load while supplying loop power (0-24mA):

Connect the positive terminal of the “Two Wire Transmitter” to jack 2(+).

Connect the negative terminal of the “Two Wire Transmitter” to jack 3(-).

Jack 1 is unused.

Pressure connections are made to the manifold via 1/8 NPT connectors which are user supplied. Always be sure to use teflon tape on all fittings being connected to the manifold. Even at low pressures, leaks will occur if teflon tape is not used. It is recommended that threads are wrapped 3 to 4 times with tape to ensure an airtight fit.

If the optional hand pump is being used, one of the side manifold plugs must be removed to complete the connection. A 3/16 allen wrench is supplied for removing and retightening these plugs. For ease of use, the pump can be attached on either side of the manifold.

If using the optional OMEGA hand pump (PLC425-Pump) the following set up applies:

1. After connecting the hand pump to the pressure manifold (ensure that threads have been wrapped 3 or 4 times with tape), adjust the vernier knob on top of the pump to medium range. This can be accomplished by screwing the vernier knob all the way in and backing it off approximately 10 turns.

2. The small knurled knob near the middle of the pump should be opened one turn to the left, to relieve any pressure in the pump, and then retightened prior to pressurizing the device under test.

3. Your calibrator can now be zeroed (by pressing the zero key when exposed to ambient pressure) and you are ready to make your test.

Before any pressure measurements can be made, the calibrator must be zeroed out. This can be done when the calibrator is exposed to ambient pressure by pressing the zero key. It is advisable to do this often to ensure accurate calibrations are being made.

Be sure to observe the maximum indicated pressure as labeled on the pressure manifold. Although a transient pressure of two (2) times the rated maximum can generally be tolerated without recalibration, prolonged exposure to higher pressure will cause sensor damage. The calibrator will flash OVER if the rated input pressure is exceeded.

The PCL9001 is designed to be compatible with a wide range of media (both gases and liquids). However, strong corrosive gases should be avoided. To be sure what you are measuring is compatible with the PCL9001, the wetted components are listed as follows:

– Nickel Plated Brass – Silicon – Glass – RTV – Polyurethane

All electrical connections are fused with a 1/8 Amp 2AG size fuse located on the printed circuit board near the input jacks. These fuses can be replaced in the field by following these steps:

1. Remove the four (4) screws located on the bottom of the case.

2. With the screws removed, lift off the top of the case to expose the printed circuit board.

3. Change the fuse in question.

4. Reassemble the calibrator.

When using the internal 24 volt power supply to power a device under test, be aware that the internal power supply is current limited to approximately 25mA.

When the batteries near the end of their life, “BT” appears on the display. The batteries should be replaced or recharged if Ni-Cd batteries are used. If Ni-Cd batteries are being used, charging will take 10 to 12 hours.

If you are connecting the PCL9001 to your own computer, the following specifications will apply:

1. Baud Rate – 2400

2. 8 data bits with 1 stop bit

3. No Parity

When connected to a computer, the PCL9001 will begin to send data as soon as the calibrator is turned on. The data can be stopped by pressing the send data key. From now on, data will be sent to the computer only when the “Send Data” key is pressed.

Other commands can be sent to the PCL9001 from the computer to do all of the PCL9001’s functions such as range change, pressure zero, etc. For information on these procedures, you may need to consult product documentation or contact the manufacturer.

Recalibration of the pressure sensor may be required more often if the calibrator has been subjected to high over-pressure or corrosive media not compatible with the wetted materials. If this is the case, the PCL9001 can be quickly recalibrated by the customer, as long as a suitable pressure standard is available.

The recalibration procedure is as follows:

1. Connect the PCL9001 to an appropriate standard such as a dead weight tester.

2. Turn on the PCL9001 and allow it to warm up for a minimum of 10 minutes at room temperature.

3. With the calibrator exposed to ambient pressure, press the zero key.

4. Apply pressure equal to the full scale rating of the PCL9001 (5, 30, or 100 lbs).