About GB Tech Service

GB/Sperry/ Technical Service Representitive

Continuity Measurements.

Any multimeter with the ability to test resistance or ohms can measure for continuity. Some meters have an audible buzzer to let you know when you have continuity, while others don’t. You need to keep an eye on the display to watch the reading the tester is giving. Most analog testers you have to watch the screen to see if the needle goes all the way to the right. With the digital meters, some have an audible symbol to let you know if the meter has an audible buzzer or not.
This is the audible continuity buzzer. In most cases, if the reading is under 50 ohms of resistance, the meter will buzz. With other testers, you would just select any of the resistance ranges (Ω) and watch the reading you get on the screen. It should be as close to 0.00 as possible to have the best continuity. Most times you will get something between 0.00 and 0.3 on the display because the meter is picking up resistance in the circuit being tested and in the test leads.
WARNING!!! ALWAYS TEST CONTINUITY ON A CIRCUIT THAT IS SHUT OFF. A live circuit will damage the tester and potentially injure the user.

Duct Seal Information

Duct Sealing Compound is a gray, permanently soft, non-toxic compound
which will adhere to most clean dry surfaces. Duct Sealing Compound
will not adversely affect other plastic materials or corrode metals.
It also has no adverse effect to human skin.

There is a Duct Seal specification sheet located on our website under the resources tab that contains all of the products information. It is also listed in our catalog on page 169.

Replacement tips for the Circuit Alert Screwdrivers.

We currently do not offer them as replacement parts. Technical Service does have a very limited supply of replacement tips.

Most standard replacement bit tips are expected to be used in a magnetic bit holder that will clip in to the driver. The Circuit Alert screwdrivers use bits that have a spring loaded ball bearing in them. We do this because with the Circuit Alert function of the screwdriver, the magnetic field from the magnet in the driver could cause false readings. If standard replacement tips are used, they will fall out of the screwdriver.

HotBlanket PVC Benders (BB5150, BB2030, BB3040).

Hot Blanket PVC Benders only have a 90 warranty!!! If these are used improperly, such as the end of the PVC not being properly supported at the ends and the blanket is resting on the concrete while making a bend this WILL burn a hold in the side of the blanket and this is not covered under warranty. Also, after each bend, this bender should be given 10 minutes to cool. This is NOT a unit designed for consistent production bends.
This tool is NOT repairable, do not attempt to modify this product!