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Refractive index or Abbe number (νd or νe) can be measured at different wavelengths ranging from 450 to 1,100nm (For measurement at wavelengths ranging from 681 to 1,100nm, the Optional Near Infrared Ray Viewer (RE-9119) is required.)
The DR-M4 displays measurement result of refractive index or Abbe number digitally on the LCD.
Measurement can be achieved by matching the boundary line with the intersection point of the cross hairs.
This refractometer is connectable with Digital printer DP-63 (B) (Optional).
Specifications
| Model | DR-M4 |
|---|---|
| Cat.No. | 1414 |
| Scale | Refractive index Abbe number |
| Measurement Range | Refractive index : 1.5219 to 1.9220 (at 450nm) Refractive index : 1.4700 to 1.8700 (at 589nm) Refractive index : 1.4545 to 1.8544 (at 680nm) Refractive index : 1.4260 to 1.8259 (at 1,100nm) |
| Minimum Indication | Refractive index : 0.0001 Abbe number : 0.1 |
| Measurement Accuracy | Refractive index : ±0.0002 (With the attached test piece at 500 to 650nm) |
| Measurement Temperature Range | 5 to 50°C |
| Output | For printer, DP-63 (B) (Optional) |
| Wavelength Range | From 450 to 1100nm (with interference filters) (For measurement at wavelengths ranging from 681 to 1100nm, the Near Infrared Ray Viewer (Optional) is required) |
| Power Supply | AC100 to 240V 50/60Hz |
| Dimensions & Weight | 13×29×31cm, 6.0kg (Refractometer) 15×33×11cm, 3.2kg (Light source unit) |
| Power consumption | 160VA |
Special Order Option : The sample stage height can be customized.
Options
· Lighting glass for film measuerment : RE-6193
· Digital printer DP-63(B) (Thermal printer) : Cat.No.3135
· Interference filter 589(D)nm : RE-3520
· Interference filter 486(F)nm : RE-3521
· Interference filter 656(C)nm : RE-3522
· Interference filter 546(e)nm : RE-3523
· Interference filter 480(F`)nm : RE-3524
· Interference filter 644(C`)nm : RE-3525
· Interference filter 450 to 539nm : RE-3526_450
· Interference filter 540 to 680nm : RE-3526_540
· Interference filter 681 to 799nm : RE-3526_681
· Interference filter 800 to 1110nm : RE-3526_800
· Near-infrared ray viewer : RE-9119
· Eyepiece for polarizing : RE-1146
* Calibration Certificate : Contact an ATAGO representative for details.
Parts
· Test piece C with m-naphthalene : RE-1197
· Main & secondary prism : RE-1640
· Illuminating lamp : RE-4170
· Pack of desiccant tablets : RE-1592