Difference between revisions of "UNI-T UT181A"

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| categories      = CAT IV (600V) / CAT III (1000V)
| categories      = CAT IV (600V) / CAT III (1000V)
| connectivity    = [[Device_cables#UNI-T_UT-D09|UT-D09 (USB)]] / [[Device_cables#UNI-T_UT-D07A|UT-D07A (BLE)]]
| connectivity    = [[Device_cables#UNI-T_UT-D09|UT-D09 (USB)]] / [[Device_cables#UNI-T_UT-D07A|UT-D07A (BLE)]]
| measurements    = voltage, current, resistance, capacitance, frequency, duty cycle, diode, continuity, temperature
| measurements    = voltage, current, resistance, capacitance, frequency, duty cycle, period, diode, continuity, temperature, gain
| features        = autorange, true-rms, data hold, min/max/avg, peak, relative, bargraph, backlight, logging
| features        = autorange, true-rms, data hold, min/max/avg, peak, relative, bargraph, backlight, logging
| website        = [https://www.uni-trend.com/index.php?m=content&c=index&a=show&catid=148&id=16 uni-trend.com]
| website        = [https://www.uni-trend.com/index.php?m=content&c=index&a=show&catid=148&id=16 uni-trend.com]
}}
}}


The '''UNI-T UT181A''' is a logging digital multimeter with PC connectivity.
The '''UNI-T UT181A''' is a 60000 count 0.025% accuracy logging digital multimeter with PC connectivity.
See [[Device cables#UNI-T_UT-D09|UT-D09]] and [[Device cables#UNI-T_UT-D07A|UT-D07A]] for typical cables.
See [[Device cables#UNI-T_UT-D09|UT-D09]] and [[Device cables#UNI-T_UT-D07A|UT-D07A]] for typical cables.
Users need to enable communication in the meter's menu system before starting the application ('''SETUP''' -> '''Communication''' -> '''ON''').
Users need to enable communication in the meter's menu system before starting the application ('''SETUP''' -> '''Communication''' -> '''ON''').
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== Resources ==
== Resources ==


* [https://github.com/antage/ut181a-cli '''ut181a''' DMM library] and [https://github.com/antage/ut181a-cli '''ut181a-cli''' application]
* [https://github.com/antage/ut181a '''ut181a''' DMM library] and [https://github.com/antage/ut181a-cli '''ut181a-cli''' application]
* [https://github.com/antage/ut181a/blob/master/Protocol.md UT181A protocol description]
* [https://github.com/antage/ut181a/blob/master/Protocol.md UT181A protocol description]



Revision as of 19:05, 17 March 2020

UNI-T UT181A
UNI-T-UT181A.jpg
Status planned
Counts 60000
IEC 61010-1 CAT IV (600V) / CAT III (1000V)
Connectivity UT-D09 (USB) / UT-D07A (BLE)
Measurements voltage, current, resistance, capacitance, frequency, duty cycle, period, diode, continuity, temperature, gain
Features autorange, true-rms, data hold, min/max/avg, peak, relative, bargraph, backlight, logging
Website uni-trend.com

The UNI-T UT181A is a 60000 count 0.025% accuracy logging digital multimeter with PC connectivity. See UT-D09 and UT-D07A for typical cables. Users need to enable communication in the meter's menu system before starting the application (SETUP -> Communication -> ON).

Protocol and usage

Currently there is no sigrok driver for the UT181A device. An external MIT licensed project which was written in the Rust programming language also contains a description of the protocol, see the Resources section below. This will be useful in the creation of a sigrok driver.

The choice of a serial cable and the meter's specific protocol are independent from each other. A WorkInProgress driver was used with the UT-D09 cable like this:

 $ sigrok-cli --list-serial
 $ sigrok-cli -d uni-t-ut181a:conn=hid/cp2110/raw=/dev/hidraw0 --samples 10

Resources