DM 3 1/2 and 4 1/2 Digital Voltage Amperage Meter Frequency meter Tachometer Count meter, high accuracy, widely used in industrial

1. Features and advantages:

a). Classical hareware design,stable performance.
b). High accuracy.
c). Rich measuring range available.
d). With decimal point setting function.

2. Model specification:

3. Technical parameter:

1). DC DIGITAL VOLTMETER,AMMETER

Electrical parameter:

Max.display	1999 (3 1/2); 19999 (4 1/2 )
Input mode	Single ended input
A/D converter	Dual integral
Sampling rate	About 2.5 times/second
Overflow indication	3 1/2:“-1”or“1”; 4 1/2:“0000”or“-0000”LED flash
Polarity display	Only “-”display
Display	Red LED
Power supply	3 1/2:DC 5V ±10%; 4 1/2:DC 5V ±0.2V
Working invironment	0～50℃ <85%RH

Measuring range and specification:

◆ DC digital voltmeter:

◆ DC digital ammeter:

2). FREQUENCY,TACHOMETER,COUNTER DIGITAL PANEL METER

Electrical parameter:

Display	Red LED
Input impedance	＞10K
Input electrical lever	5～25V
Input waves	Square wave
Voltage input limit	25V
Frequency accuracy	±0.05 ±1Digit(DM4A-FR1；DM4B-FR1); ±0.05 ±10Digits(DM5C-FR1)
Input frequency range	1～10K HZ
Counting speed	≤1000CPS
Decimal point	Auto change according to the setting range
Overflow indication	“UUUU”or“UUUUU”
Power supply	DC +5V±10 %(DC 12V or DC 24V can be ordered)
Working invironment	0～50℃ <85%RH

Measuring range and specification:

4. Appearance and installation dimensions:

5. Connections:

6. Contact:

Sales: bassy shi

Cell phone: +86 13773069136

Email: bassy.shi@youjiazhineng.com

Light Country Co., Ltd. was founded in 1985 in Taiwan, Dongguan branch built in 1997, Changshu site in 2004.

We dedicate on switch. Our main products are thermostat, rocker switch, push button switch, water-proof switch, photoelectric switch, slide switch and rolling-ball vibration switch. These parts are widely used in household appliance, electrical products, office equipment, industrial facilities, medical devices and so on. They could be customized designed based on end-customer's demand.

To provide customer best service, we’re with integration of R&D, production, sales and post-sales as well. We've got ISO9001, ISO14001, CQC, UL/CUL, VDE, TUV, SEMKO, NEMKO certificate, comply with ROHS/REACH regulations.

We promise reasonable price, stable quality, timely delivery and superior service.