LED display shows [LO] [GO] [HI] indication installed digital comparator
● Resolution：10μΩ
● Maximum measurement range：199.9Ω
● Measurement signal：1kHz
● 4-terminal measurement
● A/D conversion method type double integral
● Digital comparator and BCD parallel out available
Specifications
Measuring range and Accuracy (at23℃±5℃)
| Range | Measuring range | Resolution | Measuring current | Accuracy |
|---|---|---|---|---|
| 20mΩ | 0.00mΩ～19.99mΩ | 10μΩ | 100mA | within ± (0.3％rdg＋50μΩ＋2digit) |
| 200mΩ | 0.0mΩ～199.9mΩ | 100μΩ | 10mA | |
| 2Ω | 0.000Ω～1.999Ω | 1mΩ | 1mA | |
| 20Ω | 0.00Ω～19.99Ω | 10mΩ | 100μA | |
| 200Ω | 0.0Ω～199.9Ω | 100mΩ | 10μA |
| Test signal | 1kHz ±5% sine wave/applied voltage less than 20mV |
|---|---|
| Measuring method | 4-terminal measurement |
| Sampling time | [Free running mode] 12.5 times/sec. |
| [Remote start mode] 80msec. | |
| Measuring response time | about 0.5sec. |
| Comparator set range | 0000～1999 both for high and low limit |
| Indication of comparator’s comparison result | LED indication LO/GO/HI and buzzer |
| Control signal | remote start input |
| comparison output [LO/GO/HI]：open collector：max.50V, 100mA | |
| end of comparison output [EOC]：open collector：max.50V, 100mA | |
| measured value in BCD parallel (fan out 2) | |
| print command (fan out 2) | |
| range (fan out 2) | |
| Power supply | AC100V/117V/220V/240V selectable, 50/60Hz, less than about 15VA |
| Outer dimension | about 260 (W) ×90 (H) ×250 (D) mm (excluding protruding parts such as rubber legs, etc.) |
| Weight | about 2.2kg |
The Outline
Digital OHM Meter, AX-124N outputs to judge the lowest resistance value for LO, GO, HI built-in digital comparator to conduct digital measurement, 1kHz AC signal.
Built-in buzzer, it is the best suitable for the inspection of a contact resistance such as relay, switch, and connector and internal resistance of battery.
As the synchnous detecting method applied, the unit only measures the pure resistance even when series inductance exists. Less than 20mV peak voltage is impressed even when the terminals are opened, destroy of oxidized membrane can be avoided.