This is the second 789 meter that I have purchased. I liked the features of mA sourcing built into multimeter that I ordered a second unit. One less tool to carry around.
I purchased my 789 a few years ago and have never looked back. It is a solid tool for testing I/O and calibrating sensors. It is the only multi-meter that I carry other than the 773 Clamp Meter.
A very useful meter for process control. I can carry only one meter and do both 4-20 miliamps (measure, source and sink) and electrical testing. It is durable and rugged. Easy to see display. It can also do remote testing so I don't have to do arc flash protocol. My favorite meter.
My experience with Fluke products has made me come to rely on them for my job. I've used this meter for years in the field and liked it so much, I bought one for my personal use. It is great for controls engineers during installation and testing.
Used for testing 4-20 ma analog input module calibration. Easily setup to step through the ranges needed and determine bad modules. It is nice to have this functionality included in a meter that I would carry anyway.
We use our 789 mostly for the ability to loop power 24vdc instruments and to send 4-20ma signals into our PLCs. This definitely reduces the amount of time spent troubleshooting issues by quickly allow us to separate issues between the instrument or the PLC side. The meter is one of the most cost effective tools we have in our toolbox for checking instrumentation and wiring.
I used to use a Fluke 87V DMM and a separate signal generator for process calibrations and troubleshooting. This meter combines both and is invaluable to me being able to perform my job quickly and efficiently. The built-in 250 ohm resistor feature is nice for HART communications too.