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MULTI-METERS
 
 


 
 

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A variety of Multi-Meters, both analogue & digital, are probably the most essential items of your test equipment.  For me they are certainly the most used of all my test equipment.

 

Volts, Amps & Ohms are the standard units of measurement, although Farads, Henrys, dBs, °C, hfe and MHz also feature.

 

 

 

This is a mains powered HP 3478A Multimeter.

 

This can measure dc & ac voltage & current, plus resistance.  The reading can be displayed as 5½, 4½, or 3½ digits with autozero.  An excellent feature is 'electronic calibration' so no mechanical adjustments are necessary to calibrate the Multimeter.

 

I use this as my 'reference' DMM. 

 

 

 

 

 

The ubiquitous AVO Meter was the "standard" bench multi-meter when I first started in electronics.
 
This is a battery powered Avo 8 Mk6. This can measure dc & ac voltage & current, plus resistance. I mainly use this for monitoring ac supply current to the DUT (Device Under Test).
 
 
 
 
 
 
This is the digital version of the Avo and is a battery powered Avometer 2001.
 
This can measure dc & ac voltage & current, plus resistance & continuity.  I use this as my 'field' general purpose portable DMM.
 
 
 
 
 
 
 
 
This is a mains powered GW GDH-8035G Digital Multimeter.
 
This can measure dc & ac voltage & current, plus resistance.  I use this as a spare bench DMM.
 
 
 
 
 
 
 
This is a mains powered Keithley 179 True RMS Digital Multimeter.
 
This can measure dc & ac voltage & current, plus resistance.  I use this as my main bench DMM.
 
 
 
 
This is a mains powered Black Star 3210MP Multimeter.
 
This can measure dc & ac voltage & current, plus resistance.  See also BlackStar "Stack".  It also has an audible tone on the lowest resistance range which is useful for 'buzzing-out' circuits.  Now SOLD
 
 
 
 
This is a battery powered (but converted to mains powered) Thandar TM355 Digital Multimeter.  This can measure dc & ac voltage & current, plus resistance.  See also Thandar "Stack".  I use this as a spare DMM.
 
 
 
 
 
This is a battery powered Honeytek A6243L Inductance and Capacitance Meter.
 
It can measure inductance up to 20H and capacitance up to 200µF. I use this for testing components and fault finding.
 
 
 
 
 

 
This is a battery powered Megger BM100 and measures ac voltage, resistance and insulation.
 
A vital piece of test equipment for measuring the input resistance (live to neutral) and insulation (live to earth) and safety earth (mains earth to frame/chassis earth) of a DUT (Device Under Test).  I use this as my main portable Megger.
 
 
 
 
 
This is a fairly versatile battery powered SkyTronic 600.219 DMM.
 
This can measure dc & ac voltage & current, plus: resistance & continuity; temperature in °C; frequency up to 20kHz; capacitance up to 20µF;diode continuity; and pnp/npn transistor hfe parameters.  It also has an audible tone on the lowest resistance range which is useful for 'buzzing-out' circuits.  I use this as a general purpose portable DMM.
 
 
 
 
 
 
This is a battery powered DBU30 Sound Level Meter.

 

This can measure sound levels from 50dBA to 126dBA with A or C weighting. Not used very often but has been useful from time to time.

 
 
 
 
 
 
 
This is a battery powered RS V10860 Digital Light Meter.
 
It can measure 0 to 50,000 lux or 0 to 5,000 foot-candles in 3 ranges.
 
 
 
 
 

 

 

This is an unusual version of a Megger. It is a battery powered WSI (West Sussex Instruments Ltd) Megohmmeter.

 

It can measure up to 500Vac, insulation test at 500Vdc, resistance from 0Ω to 100Ω and from 0kΩ to 5kΩ.

 

Now sold.

 
 
 
 
 
 
 

April 2009

 

 

 

The latest addition is a HP 3406A Broadband Sampling Voltmeter.  This is particulaly useful as it can measure signals up to 2GHz in both high impedance and 50Ω circuits.

 

It can measure 1mV to 3V in 8 ranges and -62dBm to +23dBm.

 

 

 

 

 

 

April / May 2011

 

 

 

 

 

Recent additions: Megger CBT2 RCD Tester and Megger LT5 Loop Tester, see Megger "Stack" for more information.

 

 

 

 

 

 

 

 

November 2011

 

 

Voltech PM1000 AC Power Analyser provides various power, voltage, current, frequency, etc measurements.

 

I mainly use this for monitoring ac supply voltage to the DUT (Device Under Test).

 

 
 
 
 
 
 
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