Digital Mulitmeter with Infrared Thermometer Measurement H28

Product Specifications

Prod Model:	H28
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Display Mode:	Digital
Power Source:	DC
Theory:	Electronic Meter
Installation:	Portable

Product Description

Digital Mulitmeter with infrared thermometer measurement H28
. DESCRIPTION
- This meter is a portable professional measuring instrument with large LCD to show three lines of readings, as well as back light for easily reading. The 'single-hand operation' design for the range switch makes measurement simple and easy. Overload protection and low battery indication are provided. It is an ideal multi-function instrument with scores of practical applications for professional, workshop, school, hobby and home use.
- The meter is devised with light and sound alarm to prevent misconnection of test leads and provide additional protection against damages caused by improper operation.
- The humidity and temperature functions are suitable for measuring ambient humidity and temperature, as well as temperature of objects.
- The digital multimeter can perform measurements of AC/DC voltage and current, resistance, frequency, duty, capacitance, as well as continuity and diode test.
- The non-contact infrared temperature measurement function makes it more convenient and safe to measure temperatures.
- Both the reading and unit of measurement are displayed on the LCD.
- Both auto range and manual range are available
1) LCD (Liquid-crystal display)
2) Auto/manual switch button (RANGE)
3) Relative measurement switch button (REL)
4) Reading hold/back light button (HOLD/B. L. )
5) Hz/duty switch button (Hz/DUTY)
6) Panel
7) Rotary selector
8) 10A input jack
9) mA/μ A/hFE input jack
10) COM input jack
11) V\Ω \Hz\ \ input jack
12) OFF - switch of power
13) Function switch button (SELECT)
14) C/F switch button
15) Humidity & Temperature sensor
16) Infrared THERMO-Sensor
17) Laser Pointer

Overload protection

40mV~400mV range 250V DC or RMS AC,

4V-1000V ranges 1000V DC or 750V RMS AC.

- Max. Input voltage 1000V DC or 750V RMS AC

NOTE

At small voltage range, unsteady readings will appear before the test leads contact the circuit. This is normal because the meter is highly sensitive. When the test leads contact

He circuit, the true reading will be shown.
3.1 GENERAL SPECIFICATIONS
3.1. 1The meter is devised with light and sound alarm to prevent test leads misconnection.
3.1.2 Auto range and manual range options are available.
3.1. 3 Overrange protection is provided for all ranges.
3.1. 4 Maximum voltage between terminals and earth ground: 1000V DC or RMS AC
3.1.5 Operating altitude: Max. 2000 meters (7000 ft. )
3.1. 6 Display: LCD, 3 readings at the same time
3.1. 7 Maximum value display: 3999 digits
3.1. 8 Polarity indication: Automatic; '-' for negative polarity.
3.1. 9 Overrange indication: '0L' or '-0L'
3.1. 10 Sampling time: Approx. 0.4 second per sample
3.1. 11 Unit indication: Function and unit.
3.1. 12 Auto power off time: 30 min.
3.1. 13 Specification of resettable fuse: F1 500mA/250V
3.1. 14 Fuse protection: F2 10A/250V (quick acting).
3.1. 15 Operating power: 1.5V× 3 AAA batteries
3.1. 16 Battery low indication: ' ' on LCD
3.1. 17 Temperature factor: < 0.1× Accuracy /C

- Overload protection

4V-750V range 1000V DC or RMS 750V AC.

- Max. Input voltage 1000V DC or RMS 750V AC

- Frequency range 40 to 400Hz

- Response average, calibrated in RMS of sine wave

3.2.3 DC Current

Range
Resolution
Accuracy

400mA
0.1mA

4000mA
1mA

40mA
10mA
± (1.2% of reading + 3 digits)

400mA
100mA

4A
1mA

10A
10mA
± (2.0% of reading + 10digits)

- Overload protection

MA, mA ranges resettable fuses F1 500mA/250V

10A range F2 10A/250V fuse (quick acting).

- Max. Input current

MA jack(mA ranges) 4mA,

MA jack(mA ranges) 400mA,

10A jack 10A

- voltage drop

400mA ranges 40mV,

4000mA ranges 400mV,

40mA ranges 40mV,

400mA ranges 400mV,

4A range 40mV

10A range 100mV