GOM-804/805採用3.5吋的彩色LCD顯示幕,讓量測結果更清晰易讀外,也增加了相關設定條件的顯示,大大的提升了測試資訊的完整度。GOM-804/805提升量測的速度到每秒60筆的取樣速度的情況下,仍能提供0.05%準確度、而且顯示位數也不會因為速度的選擇而使原有的5位數,降低為4位數。另外,使用了獨立的功能按鍵和方向鍵,也提高了操作上的便利性,讓使用者更加直觀便捷的完成所有量測的任務。
另外,GOM-805為因應不同類型的材料的量測應用,還提供乾電路(Dry circuit)和各式驅動模式(直流+/直流-、脈衝、脈衝寬度變調)。當不同材料的導體互相接觸,因對溫度變化不同所產生的電位差,可用脈衝電流輸出模式,來降低在低阻測量時的熱電動勢影響。直流+/直流-電流輸出模式,則適用於電感性元件的量測需求。而脈衝寬度變調輸出模式,則適用於對溫度變化敏感的材料,可避免因長時間量測電流的加載,造成阻值變化。當使用直流+、直流-和脈衝驅動模式時,可同時搭配乾電路(Dry circuit)進行量測;乾電路可將開路電壓限制在20mV的情況,以避免元件兩端的電壓過高,破壞了接觸點表面的氧化層或薄膜,進而破壞量測的有效性,例如連接器的接觸電阻測量,就是一個典型的應用。
NOTE | Specifications are ensured only for GOM-804/805 at least 30 minute of warm-up time and Operating Temperature Specification: 18~28?C |
Display | 3.5'(320 x 240) TFT LCD |
Memory | 20 sets for panel setting |
Power Source | AC 100 - 240 V, 50/60Hz |
Comsumption | 25VA (max.) |
Dimension | 223(W) x 102(H) x 283(D) mm |
Weight | Approx.3kg(max.) |
MODEL | GOM-804 | GOM-805 | |||||||||
DISPLAY | |||||||||||
| 50,000 counts | ||||||||||
SAMPLING RATE | |||||||||||
Slow | 10 readings / s | ||||||||||
Fast | 60 readings / s | ||||||||||
RESISTANCE MEASUREMENT | |||||||||||
Range / Test current (fixed) |
| ||||||||||
Accuracy | 50mΩ : ± (0.1% of reading + 0.02% of range) | ||||||||||
| 500mΩ ~ 50Ω : ± (0.05% of reading + 0.02% of range) | ||||||||||
| 500Ω ~ 500kΩ : ± (0.05% of reading + 0.008% of range) | ||||||||||
| 5MΩ : ± (0.2% of reading + 0.008% of range) | ||||||||||
Resolution | 1?Ω, 10?Ω, 100?Ω, 1mΩ, 10mΩ, 100mΩ, 1Ω, 10Ω, 100Ω | ||||||||||
TEMPERATURE | |||||||||||
Range | -50?C ~399.9?C | ||||||||||
Accuracy | -10?C ~40?C : 0.3% ± 0.5?C ; Other : 0.3% ± 1.0?C | ||||||||||
Resolution | 0.1?C | ||||||||||
DRY CIRCUIT | |||||||||||
| ----- | Open circuit less than 20mV; For 500mΩ, 5Ω, 50Ω range only | |||||||||
DRIVE MODE | |||||||||||
DC+/DC- | ----- | Yes | |||||||||
Pulsed | ----- | Yes | |||||||||
PWM | ----- | Yes | |||||||||
Zero | ----- | Yes | |||||||||
OTHER FUNCTIONS | |||||||||||
| Trigger – Internal, Manual, External、Math – ABS, REL, %, TC、Hi / Lo | ||||||||||
| Average 2 ~ 10 times、Measured delay、Go / No-Go、TC for Transformer | ||||||||||
| Diode、Continuity beeper、Sorting (only for GOM-805) | ||||||||||
INTERFACE | |||||||||||
USB | Standard | Standard | |||||||||
RS-232C | Standard | Standard | |||||||||
HANDLER/SCAN/EXT I/O | Standard | Standard | |||||||||
GPIB | Option | Standard |