● VF check function 2 channel inclusion
● Measuring current setting [max.99.9mA]
● VF measuring indication [max.9.99V]
● VF comparator setting [HI LIMIT/LO LIMIT]
● Determination output HI(OPEN), GO, LO(SHORT) POL(negative polarity)
● LED negative polarity, VF measuring
Specifications
1ST Part, 2ST Part (common)
| Range | Accuracy | ||||
|---|---|---|---|---|---|
| Measuring current setting (IF SET) |
DC1.0mA～99.9mA | within ±0.1mA ±1digit | |||
| VF measurement | DC0.00V～9.99V | within ±0.5％ of F.S ±1digit | |||
|
0.00V～9.99V | ——– | |||
| 0.00V～9.99V | ——– |
※The accuracy of the measuring current (IF SET) is a reading value connected ammeter on the measurement terminal.
Measuring time
| Range | Measuring range | Accuracy | |
|---|---|---|---|
| 100Ω | Against STANDARD
＋0.0％～＋19.9％ |
|
|
| 1kΩ | |||
| 10kΩ | |||
| 100kΩ | |||
| 1MΩ | |||
| 10MΩ |
※Under 1.0％ of the measured indication value for ENR/CRN is not targetted the measuring accuracy
| Measuring time | ||
|---|---|---|
| Measuring item | Measure by external signal | Measure by “Free run” |
| ΔTR | about 23.5msec. | about 21 times per second |
| ΔTR＋Rc | about 43msec. | about 15 times per second |
| ΔTR＋Rc＋ENR/CRV | Above time ＋ noise measuring time ※1 |
Above time ＋ noise measuring time ※2 |
※The above measurement time is in a case of zero setup fot DELAY TIME on each range. The setup for each range is available up to 99msec.
※1 Noise measuring time (ENR/CRV), optional time from second start to input stop signal.
※2 The setup time for sample time (SPL) of parameter setup item is to be a measuring time of (ENR/CRV) Default: 2 seconds
| Completion of the measurement signal (EOC) Pulse width | 1msec.～199msec. [000] Continuous Output when setting |
|---|---|
| Measuring method | 4-terminal measurement |
| Comparator setting range | ΔTR：＋LIMIT ＋0.0％～＋99.9％ －LIMIT －0.0％～－99.9％ Rc, ENR, CRV: ＋LIMIT ＋0.0％～＋19.9％ |
| Operation condition | [Temp.] ＋5℃～＋40℃ [Humidity] less than 85％ |
| Power supply | AC100V/117V/220V/240V ＋10％ selectable, 50/60Hz, about 30VA |
| Outer dimension | 333 (W) ×99 (H) ×300 (D) mm (excluding protruding parts such as rubber legs, etc.) |
| Weight | about 4㎏ |
The Outline
AX-733A is the unit built-in the function to check the VF for LED elements. The measurement current is setup 1.0mA～99.9mA each, indicates the VF value from 0.00V～9.99V.
Also the comparator indicates for panel and outputs the judgment signal of HI (OPEN), GO (SHORT) set up by LO LIMIT and HI LIMIT for the VF value. When LED is reverse polarity, outputs POL signal, and judges the VF measurement to flow the measurement current into the opposite direction at the same time.