ST 755+ - Measuring equipment BENNING - Free user manual and instructions
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| Product Type | Voltage and Continuity Tester |
| Brand | BENNING |
| Model | ST 755+ |
| Measuring Functions | AC/DC voltage, continuity, resistance, phase test |
| Voltage Range | AC/DC up to 600 V |
| Resistance Range | up to 10 MΩ |
| Safety Rating | CAT III 600 V, CAT IV 300 V |
| Display Type | Digital LCD with backlight |
| Auto Power Off | Yes, after approx. 15 minutes |
| Power Supply | 2 AAA batteries (1.5 V each) |
| Dimensions (approx.) | 185 x 65 x 35 mm |
| Weight (with batteries) | 220 g |
| Accessories Included | Test leads, batteries, user manual |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -10°C to 50°C |
| Humidity | <80% RH (non-condensing) |
| Protection Class | IP40 |
| Standards Compliance | EN 61010-1, EN 61326-1 |
| Cleaning | Wipe with a dry, lint-free cloth |
| Spare Parts | Test leads (BENNING PN: 044035), batteries |
Frequently Asked Questions - ST 755+ BENNING
How do I measure AC voltage with the BENNING ST 755+?
Turn the rotary switch to the appropriate AC voltage range (e.g., 600 V~). Insert the test leads into the COM and V/Ω jacks. Connect the probes to the circuit and read the value on the display. Observe safety precautions.
How do I perform a continuity test?
Set the rotary switch to the continuity/ohms position (usually marked with a diode or sound symbol). Connect the test leads to the circuit. If continuity exists (resistance < 30 Ω), a beep will sound. Ensure the circuit is de-energized.
How do I replace the batteries?
Turn off the device. Remove the battery compartment screw on the back. Slide off the cover. Replace the two AAA batteries with new ones, observing polarity. Close the compartment and reattach the screw. Do not mix old and new batteries.
What do the symbols on the display mean?
Common symbols include: '⏚' for continuity, '⚡' for voltage, 'm' for milli, and 'M' for mega. The backlight symbol indicates the backlight is on. Refer to the user manual for a full legend.
What is the maximum voltage the ST 755+ can measure?
The device can measure AC and DC voltage up to 600 V. It is rated CAT III 600 V and CAT IV 300 V. Do not exceed these limits to avoid damage or injury.
How do I test for phase presence?
Set the rotary switch to the phase test position (usually indicated by a '~' or 'P'). Connect one test lead to the COM jack and the other to the phase conductor. The display will indicate voltage, and a beep or light may confirm detection. Use insulated probes.
Does the device have an auto-off function?
Yes, the ST 755+ features automatic power-off after approximately 15 minutes of inactivity to conserve battery life. Press any button or turn the rotary switch to wake it up.
What safety precautions should I follow?
Always follow standard electrical safety: use the correct range, do not measure voltages above the rating, ensure test leads are in good condition, and never use the device if damaged. Wear personal protective equipment (PPE) when necessary.
How do I clean the device?
Disconnect all test leads. Wipe the housing with a dry, lint-free cloth. If necessary, use a mild detergent and a damp cloth. Never use abrasive cleaners or solvents. Do not immerse in water.
Where can I find spare test leads?
Genuine BENNING test leads for the ST 755+ are available under part number 044035. You can order them from authorized BENNING distributors or online retailers. Always use original replacements to ensure safety.
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USER MANUAL ST 755+ BENNING
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Product information
Brand : BENNING
Model : ST 755+
Category : Measuring equipment