20 Most Recent Sperry Instruments DM6450 64 Series Digital Multimeters Questions & Answers

Are you connecting your leads to the proper terminals on the meter? There are, what, four of them? Easy to mix up. If it still isn't working, then you might have a bad connector on your multimeter.

remove battery door and replace 9V battery detailed explanation bellow http://www.testequipmentdepot.com/sperry-instruments/pdf/dm6400.pdf

http://www.sperryinstruments.com/documents/products/dsa500a.pdf

The "neutral" wire in home wiring is always the "white" wire. The hot line is always the "black" wire or in the case of a multiple conductor, can be just about any color but white or green. Green is circuit ground, the nasty 3rd pin on the plugs we use, but a very important safety feature.
When you have an "open neutral" reading it means that the "white" wire has come loose some place in your wiring. A broken or loose wire is referred to as an "open" in electrical terms. I assume you are plugging an outlet tester in and get this indication. It may just be in the outlet you are testing or someplace else between the outlet and the circuit breaker.

I had one do this and I had to install a new one due to the other one being faulty internally

Same exact features, buttons and functions as this manual by Irwin.

http://www.irwin.com/uploads/documents/36_laser_tape_25.pdf

I want to use an old sensor forgiven during 30 years. I have no more manual, off course. Thanks for your answer

Most moisture meters measure the moisture content of wood or concrete is measured in percentages. So if the reading says 15 that means that there is a content of 15% moisture in the concrete.

Pressing the - (minus) button on the back toggles temperature units. Pressing + (plus) toggles barometric pressure units.

It's possible that one of the newer sensors could work in place of your 1457 sensor, but it depends on the specifications of the newer sensors and the compatibility with your base unit. The I MAX1457 sensor, which is a highly integrated analog-sensor signal processor optimized for piezoresistive sensor calibration and compensation. However, I have no information about its compatibility. If you're looking for a replacement sensor, I suggest contacting the manufacturer of your base unit to inquire about compatible sensors. Alternatively, you can check the user manual of your base unit to see if it lists compatible sensors. Garage door opener sensors are not universal. Safety sensors can only communicate with garage door openers from the same brand.

Unlikely unless you know the secret maker name and can find them in China. At the moment, no one has heard of it apart from here on Fixya. All questions need FULL 'make model (what it is)' please. https://www.google.com/search?q=dse+z111 ..

1. Access the Time Setting Mode:
   • Locate the 'Set' or 'Settings' button on your weather station. This button is typically found on the front or the back of the unit.
   • Press and hold the 'Set' or 'Settings' button for about 3 to 5 seconds. This action should access the time setting mode, where you can adjust the time.
2. Adjust Hour and Minutes:
   • Once in the time setting mode, use the 'Up' or '+' button to increase the hours and the 'Down' or '-' button to decrease the hours.
   • After setting the correct hour, press the 'Set' or 'Settings' button again to move to the minutes setting.
   • Use the 'Up' or '+' and 'Down' or '-' buttons to adjust the minutes accordingly.
3. Confirm the Time:
   • Once you have set the correct time, press the 'Set' or 'Settings' button again to confirm and exit the time setting mode.
4. Check the Time Display:
   • After setting the time, check the display to ensure that the time is displayed correctly.

Question edited for clarity. Question moved from Motorcycles category. Of course not! You will burn out all the electronic components. You can't just double the voltage. Conversely you can't put a 1.5 volt battery in place of a 3 volt one. Get the proper battery. https://www.starrett.com/contact-us# ..