Description
EM408B is an accurate measuring instrument that is especially applied in audio impedance measurement. It is applied in many wide applications, such as measuring the impedance of a speaker, sound system, home theater, and commercial audio system.
Main features:
-The insulation resistance tester has data retention, automatic shut-off function. Protection circuit provided, prevents damage caused by discharge
voltage-The digital ohmmeter has full function protection, anti high voltage
circuit design-Wide measurement range, high stability and reliability, test voltage between 250V, 500V and 1000V-The
test voltage can be changed by the rotary switch. LED used as an indicator of normal operation in high voltage conditions. High capacity to withstand high loads.
– Handheld megohmmeter includes carrying case and belt, easy to carry and use
General characteristics:
1.Actual measurement of the actual impedance of speaker systems at 1 kHz
2. Three test ranges (20 ohms/200 ohms/2000 ohms) allow for testing commercial and home theater sound systems.
3.Convenient operation with portable battery.
4.Low battery indication
5.Data Retention Function
6.Timer function for easier operation. The timer can last for about 30 seconds minutes after users press the TEST button
7.Auto Power Off: After about 15 minutes of inactivity
SPECIFICATIONS:
-Display: 3 1/2 digit LCD (2000 counts), with unit
-Data Hold Indication: H symbol appears on the display
-Power supply: 9V DC (6 x 1.5V AA batteries) (exclude)
-Accuracy is specified for a period of one year after calibration and from 18C to 28C, with a relative <humidity of 75%.
-Accuracy specifications take the form of: ± ([% of reading] + [number of least significant digits])
-Range: 20 ohms/200ohms/2kohms
-Resolution: 10 mohms / 100 mohms / 1ohms
-Accuracy: 2% rdg + 2dgts
-Frequency: 1 kHz
-Power: 1.5 V (AA) × 6
-Dimensions (H × L × H): 110 × 168 × 62 mm
-Weight: 485 g (with battery)
