- Used to measure the internal resistance, voltage and temperature of Lead-acid batteries, Gel Batteries, Lithium batteries and other batteries.
- AC injection method measurement
- Large capacity lithium battery charging
- USB interface for linking to computer
- Bluetooth function allows connection to mobile phones
- Pre-set PASS, WARNING, FAIL judgement thresholds
Description
The MT247 is a rechargeable battery internal resistance tester. Simultaneously measuring voltage and temperature of rechargeable batteries such as lead storage batteries, GEL batteries and lithium batteries to determine the health of the battery. It can also be used to measure the ESR parameters of electrolytic capacitors (for reference only). The meter is not affected by the contact resistance between the test wire, terminal and battery electrode. It also has the functions for data storage, data access, alarm and automatic shutdown. The MT247 is a reliable tester with a stable performance. It has a wide measuring range, high resolution and accuracy. The compactness of the meter ensures it is easy to carry to any site, and is an indispensable instrument for battery production, battery installation, equipment production, equipment maintenance and other scenarios. Stored data can be transferred to a PC using an optical USB and software supplied.
Specifications
| Function |
Range |
Resolution |
Accuracy |
| Resistance |
3mΩ – 3Ω |
1uΩ |
±1% fs. ± 20 dgt. |
| DC Voltage |
7V – 71V |
1mV |
±0.2% fs. ±10 dgt |
| Temperature |
-10.0°C~60.0°C |
0.1°C |
±1.0°C |
| Temperature and humidity |
23°C ± 5°C below 75% RH. |
| Power supply |
DC 3.7V lithium battery |
| Maximum input voltage |
DC 70V (between + measurement terminal and – measurement terminal), no AC input |
| Measuring Method |
Internal resistance measurement: 1KHz (AC 4-terminal test method, open-circuit terminal voltage 3V max)
Measuring current: 2.0mA~200mA (different measuring currents in different ranges
Temperature measurement: NTC temperature sensor (10KΩ at 26°C)
A/D conversion method: Successive approximation type
Display update frequency: 5 times/second
|
| Response time |
200ms |
| Measure time |
About 2 seconds |
| LCD Size |
70.1mm x 52.6mm /3.5 inches (320×240 resolution 16-bit true color screen) |
| Instrument size |
190mm x 121mm x 51mm |
| USB interface |
With a USB interface, the stored data can be uploaded to the computer, saved, and printed |
| Bluetooth connection |
Yes |
| Hold and store function |
Manual retention and storage, automatic retention, and storage |
| Measurement judgment function |
Pre-set PASS, WARNING, FAIL judgment thresholds |
| Low Battery Indication |
Yes |
| Automatic shut-down |
No operation when power on, it will power off automatically after about 15 minutes (can be turned off in the settings) |
| Power consumption |
300mA MIN / 500mA MAX |
| Weight |
80g (with battery) |
| Working temperature and humidity |
-10°C～40°C below 80% RH |
| Storage temperature and humidity |
-20°C～60°C below 70%RH |
| Insulation resistance |
Above 20MΩ (500V between circuit and case) |
| Withstand voltage |
AC 3700V/RMS (between circuit and case) |
| External magnetic field |
<40A/m |
| External electric field |
<1V/m |
| Suitable for safety regulations |
IEC 61010 |
Accessories
- USB Cable
- Test Leads
- Temperature Sensor
- Carrying Case
- Instruction Manual
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