UNI-T UT804

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UNI-T UT804
Ut804 mugshot.png
Status in progress
Source code serial-dmm
Counts 40000/4000
IEC 61010-1 CAT III (1000V) / CAT IV (600V)
Connectivity RS232 and USB (see also RS232 / USB)
Measurements voltage, resistance, diode, continuity, capacitance, frequency, duty cycle, current, temperature
Features autorange, hold, relative, min/max, bargraph, backlight, true-rms, data storage
Website uni-trend.com

The UNI-T UT804 is a 40000/4000 counts, CAT III (1000V) / CAT IV (600V) benchtop digital multimeter with RS232 and USB connectivity. It can be powered by AC power or by six 1.5V C battery cells.

See UNI-T UT71x series for information common to all devices in this series.

Hardware

Multimeter:

RS232 cable:

USB cable:

Disassembly

There are four screws on the bottom, one of them is captive and does not come out. The red (or grey in the newer revisions) plastic is held on two points top and bottom each. It can be taken off with the help of a flathead screwdriver and pops off easily.

Usage

To receive data from the UT804 via USB the driver and the USB VID/PID of the WCH CH9325 needs to be specified like this:

sigrok-cli -d uni-t-ut804:conn=1a86.e008 --continuous

Photos

RS232 interface:

USB interface:

Protocol

See UNI-T UT71x series#Protocol.

Resources