Mastech
M-830B Multimeter
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This
is a really nice pocket sized meter designed around the Intersil ICL
7106. I bought this one from an on-line electronics shop for a fiver including postage.
There are also cheaper versions of this selling as Tool Tech
DT830B, and simply Digital
Multimeter DT830B which is the cheapest
one I
have bought on ebay and costs around 2 pounds including postage, and comes from China.
This digital multimeter does quite a lot for something so small and cheap, you can check AC and DC voltages up to 600v, DC current up to 10 amps, resistance up to 2000K, which makes this tool an excellent choice for electricians, and students.
You can also measure the hFE value of a transistor, which is very useful for an electronics student who is learning how to bias a transistor in the Analogue Electronics class.
The fact it doesn't have a audible continuity check buzzer is actually a good thing as the last thing you want is a class of students with beeping buzzers. The plastic case is also very tough, I keep it with the rest of the tools and it gets thrown around a lot.
Large analogue style meters are great for the bench, but if you need something small and pocket sized for the field then this meter is very handy. I like Digital Multimeters and test instruments and the smallest meter I have is wallet sized and looks like a calculator.
This meter uses a standard sized 9v battery (6F22 / NEDA) that can last for many hours of use. I once forgot to switch it off and the meter was still operational in the morning.
Mastech is a large company that designs and builds quality multimeter measuring instruments. I use this meter a lot on the field and I also have the vintage Avo Meter 8 MKII as shown here that I use on the desk.
This digital multimeter does quite a lot for something so small and cheap, you can check AC and DC voltages up to 600v, DC current up to 10 amps, resistance up to 2000K, which makes this tool an excellent choice for electricians, and students.
You can also measure the hFE value of a transistor, which is very useful for an electronics student who is learning how to bias a transistor in the Analogue Electronics class.
The fact it doesn't have a audible continuity check buzzer is actually a good thing as the last thing you want is a class of students with beeping buzzers. The plastic case is also very tough, I keep it with the rest of the tools and it gets thrown around a lot.
Large analogue style meters are great for the bench, but if you need something small and pocket sized for the field then this meter is very handy. I like Digital Multimeters and test instruments and the smallest meter I have is wallet sized and looks like a calculator.
This meter uses a standard sized 9v battery (6F22 / NEDA) that can last for many hours of use. I once forgot to switch it off and the meter was still operational in the morning.
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Mastech is a large company that designs and builds quality multimeter measuring instruments. I use this meter a lot on the field and I also have the vintage Avo Meter 8 MKII as shown here that I use on the desk.
| Model: | M-830B |
| Company: | Mastech |
| Manufacturing Origin: | Hong Kong |
| Power supply: | 9v Battery 6F22(9V) or NEDA 1604 |
| Low Battery Indication: | BAT appears on the display. |
| Safety Fuse: | 250mA @ 250v |
| Measuring method: | Dual slope integration method A/D converter. |
| Maximum Current Handling | 10A |
| Resistance measurement: | 200/2k/20k/200kΩ±0.8%, 2MΩ±1.0% |
| Display: | 15 x 46mm LCD, 1999 Maximum. |
| Transistor Test | PNP / NPN |
| DC voltage: | 200m/2/20/200V±0.5%, 600V±0.8% |
| AC voltage: | 200/600V±1.2% |
| DC current: | 200μ/2m/20mA±1.0%, 200mA±1.5%, 10A±3.0% |
| Diode check: | Test current 0.8mA, Test voltage 3V |
| Weight: | 170g |
| Size: | 70mm x 126mm x 25mm |
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