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Products => Test Equipment => Topic started by: Shock on March 16, 2014, 04:12:33 am

Title: UNI-T UT33B $15 Multimeter teardown
Post by: Shock on March 16, 2014, 04:12:33 am

(http://uni-tshop.com/product/handheld-digital-multimeters/ut33-series/photos/ut33b.jpg)

UNI-T UT33B Multimeter

There was a UT33D teardown a while back, I thought I'd show the guts of my UT33B.
It's not suppose to be accurate or packed with features, just a really handy useable small meter.
It's easy to operate, sturdy construction, comfortable to hold and you can throw in the car or the kitchen draw and it's there when you need it.

DC Voltage - Range 200mV/2000mV/20V/200V/500V - Best Accuracy(0.5%+2)
AC Voltage - Range 200V/500V - Best Accuracy (1.2%+10)
DC Current - Range 200mA/200mA/10A - Best Accuracy (1%+2)
Resistance - Range 200W/2000W/20kW/200kW/20MW - Best Accuracy (0.8%+2)
Battery Test  1.5V/9V/12V (2.5%+2)
Input Impedance for VDC ~10MW
Max. Display    1999   
Additional Features: Diode, Data Hold, Display Back light, Low Battery Display.

(http://i60.tinypic.com/2wggcjs.jpg)
(http://i57.tinypic.com/5mdztl.jpg)
(http://i57.tinypic.com/mmdd2c.jpg)
(http://i59.tinypic.com/2hcg3zm.jpg)
(http://i61.tinypic.com/30wm2hw.jpg)
(http://i58.tinypic.com/212by9t.jpg)
(http://i59.tinypic.com/etuws9.jpg)
(http://i58.tinypic.com/jts8bm.jpg)

Title: Re: UNI-T UT33B $15 Multimeter teardown
Post by: alexwhittemore on March 17, 2014, 08:51:13 pm

Ha, don't make the mistake of plugging it into a mains outlet on Amps :)

Title: Re: UNI-T UT33B $15 Multimeter teardown
Post by: Macbeth on March 17, 2014, 10:26:54 pm

I like it for what it is - cheap, small, convenient to not give a feck - I've found those battery test modes on uber cheap meters quite handy as they put a 'typical' load on while measuring. Use a Fluke or bench meter and you have to put a resistor or bulb across the battery to check it.

$15 = £10 UK. Yeah I would buy that. You can't have too many meters. I have at least one in each room of my house and in the car. Cheap-arse they may be, but convenient.

ETA: The backlight alone is worth £5 of anyones money!

ETA2: NO CONTINUITY BUZZER? FFS. That is shite, meter is next to worthless. It appears the UT33C/D models do have the buzzer though.

Title: Re: UNI-T UT33B $15 Multimeter teardown
Post by: Tac Eht Xilef on March 17, 2014, 10:42:36 pm

Quote from: alexwhittemore on March 17, 2014, 08:51:13 pm

Ha, don't make the mistake of plugging it into a mains outlet on Amps :)

Quote from: Shock on March 16, 2014, 04:12:33 am

(http://i57.tinypic.com/5mdztl.jpg)

Don't make the mistake of plugging it into a mains outlet, full stop!

(OK, it may be safe for the wussy mains they use in the USA...)