Electronic Specialties 582 Deluxe Dmm With Amp Shutters 582_45_1

Description

This item is brand-new, factory sealed.

Features and Benefits

• Amp Shutters prevent mistaken operation, improve safety and saves fuses by blocking unused amp jacks
• Huge 2″ LCD Display, easy to see from across the room. LCD is back-lit for use in dark spaces
• Great Meter for electrical trouble shooting features 11 test functions and 33 test ranges
• Desirable 20 Amp Test Range that measures temperatures in Both F and C. Probe Included
• Carrying case, Test Leads, Temp Probe, Instructions and Battery is included

This is a new DMM which we like because it has the unique anddifferentiating feature of amp shutters.The amp shutters preventmistake operation, fuse blowing and improves user safety.Not tomention I really like that the digits on the LCD are just huge and canbe seen from across the room.Now, getting back the amp shutters, theyblock the unused amp jacks.As you can see in the attached image and inthe sales flyer, there are 4 test lead jacks.In this image, the DMMis set to 200mA.The only open test lead jacks are the ground jack andthe mA jack.You can not put the test leads into the wrong test leadjack because the unused test lead jacks are blocked.
Here’s how the amp shutters affect the user operation.When the techgoes to move the DMM test function from voltage to amps…..the functionselector dial is blocked and it won’t move to the Amps function untilhe/she removes the red test lead from the V jack.Once removed, theshutter swings up inside the DMM and then the Amps jack is opened up. Then the red test lead can be pushed into the Amp jack.Only after thered test lead is removed from the V jack can the operator then switchthe DMM to the Amps function.
Now, when you reverse this situation, we get much improved safety andmany many less blown fuses.The most dangerous part of operating a DMMis when a tech forgets to move the red test lead from the Amp jack backto the Volts jack.Then they plug the DMM into a wall socket to measureAC Volts.What happens next is the fuse blows, hopefully.But thereis a very small possibility that the fuse does not blow quickly enough,resulting in unlimited current passing through the now “in series”instrument and the DMMin turn explodes in his/her hand.This is arare occurrence, but this is why there are fuses in the DMM.Fuses arethere to prevent exploding DMM’s.With 582, if the red test lead isleft in the Amps jack and the user switches the DMM to AC Volts like inthe above example, the dial switch won’t move.He/she looks down andremembers to switch the red test lead back to the Volts jack and youhave that potential issue corrected and avoided. To sum it up, we like this function, it protects blow fuses and improvessafety.Schools should also be a good prospect for this DMM.