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RFM900-T Series

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Digital refractometer

Six decimal place Refractive Index precision digital refractometer with peltier temperature control. Featuring a wide measuring range up to 1.70 RI and new 7” touchscreen user interface, are ideally suited for use in applications within the chemical, petrochemical, pharmaceutical, flavours and fragrance industries as well as in academic research.

The RFM900-T series of refractometers combine the latest optoelectronic principles with durability and ease of use. RFM900-T refractometers feature RFID (Radio Frequency Identification) that allows users to identify themselves by simply swiping a tag across the top of the instrument to enable measurement and, in certain cases, access to the configuration menu.

A low-profile sample dish and non-contact presser makes sample application and cleaning easy. Readings can be taken automatically on the replacement of the presser, and over 8000 stored results can be easily viewed in tabular form on the instrument display. Peltier temperature control and intelligent temperature management ensures readings are only taken when the sample and refractometer temperatures are both stable.

Specifications

RFM960-T RFM970-T
Scales
Refractive Index
Sugar (°Brix)
User-defined
.
1.30 – 1.70
0-100
100
.
1.30 – 1.70
0-100
100
Resolution
Refractive Index
Sugar (°Brix)
.
0.0001
0.1
.
0.000001 (selectable up to 6 d.p.)
0.01/0.001
Accuracy
Refractive Index
Sugar (°Brix)
.
±0.0001
±0.1
.
±0.00002
±0.02
Precision
Refractive Index
Sugar (°Brix)
.
± 0.00005
± 0.05
.
± 0.000005 (6 d.p.)
± 0.005
User Scale Library 20+ pre-programmed scales including HFCS (3), sugar (4), sucrose SG (3), ASTM D 2140, PHR-MEAN, Urea and more; plus customer programmable user scales via PC.
Reading Time Minimum 4 seconds (dependant on precision required)
Measuring Temperature Range 0°C or 10°C below ambient whichever is greater to 80°C
Temperature Sensor Accuracy ± 0.03°C
Sample Temperature Stability ± 0.02°C
Temperature Compensation
Sucrose (°Brix)
AG Fluid
User Defined
.
5 – 80 °C
5 – 40 °C
Simple coefficient (units/°C) or polynomial function
Temperature Stability Checks None/delay time/repeatability/ Smart (independently selectable by Method)
Sample Illumination Light Emitting Diode 589nm (100,000+ hours)
Prism / Dish Artificial Sapphire / Stainless Steel 316 / PEEK (spill barrier)
Prism Seal Kalrez® (FDA/USP Class VI compliant)
Interfaces 3 x USB (A), 1 x USB (B), 1 x Ethernet, RS232 via USB adaptor (optional accessory)
Power Instrument: 24 V DC, ±5%, <2A
External PSU: 100-240V, 50-60Hz (supplied)
Humidity Range <90% RH (non condensing)