| | GPR 12-70 | GPR 53X | GPR 12-70X |
| Scales | Refractive Index (RI)
Brix
Temperature corrected Brix
10 user scales
Temperature corrected RI | Refractive Index (RI)
Brix
Temperature corrected Brix
10 user scales
Temperature corrected RI | Refractive Index (RI)
Brix
Temperature corrected Brix
10 user scales
Temperature corrected RI |
| Range | RI 1.32 to 1.68
Brix 0 to 100% | RI 1.32 to 1.68
Brix 0 to 95% | RI 1.32 to 1.68
Brix 0 to 100% |
| Readability | RI 0.0001
Brix 0.1% | RI 0.00001
Brix 0.01% | RI 0.00001
Brix 0.01% |
| Accuracy | RI ± 0.0001
Brix ± 0.1 | RI ± 0.00003 @ 1.33
Brix ± 0.02 @ 0% | RI ± 0.00005 from 1.33 to 1.45
± 0.0001 from 1.45 to 1.68
Brix ± 0.05 from 0 to 65%
± 0.1 from 65 to 100% |
| Special feature | Touch button selection of
normal or emulsion type
samples | | Touch button selection of
normal or emulsion type
samples |
| Scan time | Approximately 2 seconds | Approximately 1 second | 2 ~6 seconds, depending on resolution |
| Wavelength | 589 nm |
| Operating modes | Continuous update or single scan with user programmable delay time or single
scan with automatic detection of reading stability |
| Display | Illuminated alphanumeric, 2 lines of 24 characters
high contrast LCD with contrast control |
| Light source | L.E.D. |
| Prism material | Synthetic sapphire |
| Temperature | Displayed continuously to 0.1°C with sample reading
calibrated to ±0.1°C at 20°C; worst case deviation in absolute accuracy over entire range 0.5°C |
| Thermostatic control | By use of circulating fluid, temperature range 5°C to 70°C |
| Controls | Set zero, print, numeric keyboard for programming functions |
| Outputs/inputs | 2 x RS232, 1 x remote |
| Power requirements | 86~265V AC, 47~63Hz, less than 7 watts |
| Dimensions and weight | Refractometer: w 235 x d 260 x h 255 mm; 8kg
Power supply: w x 80 x d 160 x h 55 mm; 0.5kg |
| Packed weight | 12kg (dimensions of pack 50 x 40 x 35 cm) |
