VPC260 - Measuring equipment Extech - Free user manual and instructions
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| Product Type | Process Calibrator |
| Brand | Extech |
| Model | VPC260 |
| DC Voltage Measurement | 0 to 20.00V, 0 to 200.0mV |
| DC Voltage Source | 0 to 20.00V, 0 to 100.0mV |
| DC Current Measurement | 0 to 24.00mA |
| DC Current Source | 0 to 24.00mA |
| Loop Power | 24V internal supply |
| Pressure Measurement | Optional external pressure module |
| Accuracy (DCV) | ±0.05% rdg + 2 digits |
| Accuracy (DCA) | ±0.05% rdg + 2 digits |
| Display | LCD, 4-digit, 4000 counts |
| Safety Rating | CAT I 30V, CAT II 300V |
| Power Supply | 4 x AA batteries |
| Battery Life | Approximately 20 hours (continuous) |
| Dimensions | 180 x 90 x 50 mm |
| Weight | Approximately 350 g (with batteries) |
| Operating Temperature | 0°C to 50°C |
| Storage Temperature | -20°C to 60°C |
| Accessories Included | Test leads, alligator clips, carrying case, battery |
| Application | Calibration of process control instrumentation |
| Repair and Service | Replaceable fuses (0.125A/250V, 0.5A/250V) |
| Cleaning | Wipe with a soft, dry cloth; no solvents |
Frequently Asked Questions - VPC260 Extech
How do I measure a 4-20 mA current loop?
Set the rotary switch to the mA (current) position. Connect the test leads in series with the loop. The display will show the current in mA. Ensure the loop has a power source or use the internal 24V loop power.
How do I source a 4-20 mA signal?
Turn the rotary switch to the mA SOURCE position. Use the arrow buttons to set the desired output current. Connect the test leads to the device under test. The calibrator will output the set current.
Can I measure pressure with the VPC260?
Yes, the VPC260 supports optional external pressure modules. Connect the module to the input terminals and set the function to pressure. The display will show the pressure in the selected unit.
What type of batteries does the VPC260 use?
The VPC260 uses 4 AA batteries (alkaline recommended). To replace, remove the battery compartment cover on the back and insert new batteries observing polarity.
How accurate is the VPC260?
The DC voltage and current accuracy is ±0.05% of reading plus 2 digits. This applies for both measurement and source modes.
What are the safety precautions?
Do not exceed 30V between any terminal and earth ground (CAT I) or 300V CAT II. Use the correct input terminals and avoid applying voltages above the rated range. Remove test leads before changing battery or fuse.
How do I replace a blown fuse?
Disconnect all leads and turn off the calibrator. Open the battery compartment and locate the fuse holder. Replace the blown fuse with one of the same rating: 0.125A/250V for mA/high current, 0.5A/250V for V. Use only specified fuses.
Can I calibrate a temperature transmitter?
Yes, you can simulate RTD or thermocouple signals using the VPC260's voltage or current output, or by using an external pressure module for pressure transmitters. For direct temperature simulation, consider a dedicated temperature calibrator.
What is the maximum voltage I can measure?
The VPC260 measures DC voltage up to 20V. Do not exceed 30V DC on the input terminals to avoid damage.
How do I perform a continuity test?
Turn the rotary switch to the continuity function. Connect the test leads across the circuit. A continuous beep indicates continuity (typically below 50 ohms). The display shows resistance.
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USER MANUAL VPC260 Extech
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Product information
Brand : Extech
Model : VPC260
Category : Measuring equipment