Related Manuals for Extech Instruments 382275
Summary of Contents for Extech Instruments 382275
- Page 1 User's Guide Model 382275 and 382276 Single Output Laboratory Grade Switching DC Power Supply...
- Page 2 Introduction Congratulations on your purchase of the Extech 382275 Single Output Laboratory Grade DC Power Supply. The dual action (coarse/fine tune) rotary encoder makes setting the voltage and current levels ever so smooth, precise and fast. Setting, changing, and checking the current limit level can be done easily without sparking the output poles.
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Page 3: Power Supply Description
Output Voltage Control Knob (Controls both the main and auxiliary output voltage) Output Current Control Knob (Controls both the main and auxiliary output current) Positive Auxiliary Output Terminal (Max 5 Amps) Negative Auxiliary Output Terminal (Max 5 Amps) 10. Constant Current Indicator LED 382275/6 V1.0 08/09... -
Page 4: Rear Panel Description
Rear Panel Description Main Output (Max 20 Amps) P1, P2 and P3 Recall Switch Cooling Fan for Ventilation AC input Plug and Fuse Remote Control Connector Mode Switch 382275/6 V1.0 08/09... -
Page 5: Mode Descriptions
Use the front panel Current Control Knob to set the desired current value. Repeat the procedure for the remaining presets: P1, P2 or P3 if desired. Move the Recall Switch from the Set to the Preset position to confirm settings. 382275/6 V1.0 08/09... -
Page 6: Power Up Checks
The UUT is now ready. When operation is completed, switch off the UUT and then the power supply. When disconnecting the power supply from the UUT, disconnect the remote sensing wire first and then disconnect the output cables. 382275/6 V1.0 08/09... - Page 7 Use ONLY wires from Port 2 (Positive) and Port 4 (Negative) Switch on the power supply. Vary the external input voltage 0~5V to check and verify the full output voltage range of the supply. Switch OFF the power supply. 382275/6 V1.0 08/09...
- Page 8 Ensure that the load is disconnected and that the power supply is OFF. Plug the remote connector into the remote control terminal of the power supply. Secure the remote connector plug to the terminal socket using the locking connector ring. 382275/6 V1.0 08/09...
- Page 9 Switch OFF the power supply. Enabling and Disabling the Output Use Port 4 and 5 to remotely control the OUTPUT ON/OFF. Open Port 4 and 5 to ENABLE the output (by default) Short Port 4 and 5 to DISABLE the output.. 382275/6 V1.0 08/09...
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Page 10: Faults And Troubleshooting
To reset this warning, switch off the unit and remove all loading. Switch the unit back on again and recheck with caution . If this problem persists, please contact Extech Technical Support. 382275/6 V1.0 08/09... -
Page 11: Specifications
Over Voltage 5 to 20V Default Value is+3V Protection 20 to 30V Default Value is +4V Input Voltage 100 to 120VAC 50/60Hz (382275) 210 to 230VAC 50/60Hz (382276) Rated Load Input Current 6.3A Efficiency 86.5% at optimal load Switching Frequency... - Page 12 Extech offers repair and calibration services for the products we sell. Extech also provides NIST certification for most products. Call the Customer Care Department for information on calibration services available for this product. Extech recommends that annual calibrations be performed to verify meter performance and accuracy. 382275/6 V1.0 08/09...
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Page 13: Warranty
Warranty EXTECH INSTRUMENTS CORPORATION (A FLIR COMPANY) warrants this instrument to be free of defects in parts and workmanship for one year from date of shipment (a six month limited warranty applies to sensors and cables). If it should become necessary to return the instrument for service during or beyond the warranty period, contact the Customer Service Department at (781) 890-7440 ext. - Page 14 382275/6 V1.0 08/09...
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