UNI-T UT61E

From sigrok
Revision as of 17:22, 18 April 2019 by Jbeale (talk | contribs) (→‎Usage: Add example for Serial cable + USB-to-Serial adaptor)
Jump to navigation Jump to search
UNI-T UT61E
Old ver front.png
Status supported
Counts 22000
IEC 61010-1 CAT II (600V) / CAT III (300V)
Connectivity RS232 / USB
Measurements voltage, current, resistance, capacitance, frequency, duty cycle, diode, continuity
Features autorange, true-rms, data hold, min/max, relative, bargraph, backlight
Website uni-trend.com

The UNI-T UT61E is a 22000 counts, CAT II (600V) / CAT III (300V) handheld digital multimeter with RS232 or USB connectivity.

See UNI-T UT61E/Info for more details (such as lsusb -vvv output) about the device.

Hardware

Photos

Older version:

Newer version:

Protocol

See Multimeter_ICs#Cyrustek ES51922 for the DMM IC protocol.

Depending on the cable, additional decoding is needed, though.

Different cables are available to communicate to the DMM: regular serial cables which provide a COM port, and USB HID based cables where applications are required to handle a proprietary protocol of running serial communication on top of HID requests. See the Device cables page for details, the same cables can be used with many different DMM models.

Depending on the specific cable in use, either a device driver ending in -ser or not ending in -ser must be used. See README.devices for details.

The transmission of the measurement data cannot be disabled, the respective Cyrustek ES51922 pin (111, RS232) is tied to GND (i.e. transmission is always enabled) on this multimeter.[1]

Usage

The following sigrok-cli command can be used to receive measured values from a device connected via USB (note that the USB VID/PID after the conn option needs to be changed depending on the exact USB adapter cable used):

$ sigrok-cli --driver=uni-t-ut61e:conn=1a86.e008 -O analog

If your meter has a serial (RS-232) cable connected to a USB-to-serial adaptor, a different driver is used. Example for ttyUSB0:

$ sigrok-cli --driver=uni-t-ut61e-ser:conn=/dev/ttyUSB0 -O analog

With the --samples <n> option it is posible to stop the acquisition after the specified number of measurements. More information can be found in the README.devices file of the libsigrok source tree.

Resources