RFM 300-M Series Refractometer, RFM330-M & RFM340-M
Peltier temperature-controlled refractometers
The RFM300-M Series Refractometers bring our popular RFM300+ refractometers up to date with a line of high precision Peltier temperature-controlled benchtop refractometers. Featuring wide beam optics and a durable membrane touch-button interface with 4” high resolution display, the RFM300-M Series Refractometers are ideally suited for use in demanding applications within the food, beverage, chemical and industrial industries.
Building upon our legacy
RFM300-M refractometers are the latest in a line of RFM models designed specifically for use in harsh environments and builds upon Bellingham + Stanley’s 100-year legacy of quality instrumentation. Incorporating wide beam optics, RFM300-M Series refractometers can measure non-homogenous samples such as fruit juice with pulp, opaque chemical compounds and emulsions that are normally difficult to read with optical refractometers or those digital refractometers that do not address the need to measure “difficult samples.”
The instrument’s new case is ergonomically designed so that any spills are dealt with by the sloping shape of the case or by the PEEK spill barrier that surrounds the shallow, easy-clean stainless steel prism dish.
Refractometers with Peltier temperature control
A single large fan helps to regulate temperature as part of the Peltier control system. Operating at low speeds creates less noise whilst still offering the same excellent temperature control you’d expect to find in a Bellingham + Stanley refractometer. Positioned at the base of the unit, the RFM300-M’s fan is designed to be protected from harsh environments, whilst still being easily accessible for maintenance.
Peltier temperature-controlled refractometers
The RFM300-M Series Refractometers bring our popular RFM300+ refractometers up to date with a line of high precision Peltier temperature-controlled benchtop refractometers. Featuring wide beam optics and a durable membrane touch-button interface with 4” high resolution display, the RFM300-M Series Refractometers are ideally suited for use in demanding applications within the food, beverage, chemical and industrial industries.
Building upon our legacy
RFM300-M refractometers are the latest in a line of RFM models designed specifically for use in harsh environments and builds upon Bellingham + Stanley’s 100-year legacy of quality instrumentation. Incorporating wide beam optics, RFM300-M Series refractometers can measure non-homogenous samples such as fruit juice with pulp, opaque chemical compounds and emulsions that are normally difficult to read with optical refractometers or those digital refractometers that do not address the need to measure “difficult samples.”
The instrument’s new case is ergonomically designed so that any spills are dealt with by the sloping shape of the case or by the PEEK spill barrier that surrounds the shallow, easy-clean stainless steel prism dish.
Refractometers with Peltier temperature control
A single large fan helps to regulate temperature as part of the Peltier control system. Operating at low speeds creates less noise whilst still offering the same excellent temperature control you’d expect to find in a Bellingham + Stanley refractometer. Positioned at the base of the unit, the RFM300-M’s fan is designed to be protected from harsh environments, whilst still being easily accessible for maintenance.
Durable display & RFID technology of The RFM300-M Series
Whilst we believe that the touchscreen technology seen on our RFM-T Series refractometers is a class-leading interface, sometimes our customers want something a little more tactile. That’s where the RFM300-M comes in.
With a durable membrane made from chemical and scratch resistant polyester, the RFM300-M offers a more tactile approach, allowing users to navigate menus at the touch of a button. The large, clear buttons and 4” high resolution screen help facilitate operation in harsh factory environments, and combined with our latest GUI, help the operator quickly manoeuvre through the menus. On-screen prompts support simple operation such as Method loading, calibration and routine maintenance guiding even the newest member of your staff.
RFID swipe technology comes as standard, providing clearance and a log of operator and configuration functions; especially useful when being used in FDA regulated environments operating in accordance with 21 CFR Part 11, or where good practice is adopted, e.g. as part of HACCP.
Key Features Included as Standard The RFM300-M Series
- Clear 4” display with alphanumeric keypad
- Flat prism surface for easy cleaning
- Wide beam scan for non-homogenous samples
- 3 Decimal place Brix precision (6 d.p. RI)
- RFID user clearance
- Automatic sample read
- Supports FDA regulation 21 CFR Part 11
Methods and measuring of RFM300-M Series
Measurements with the RFM300-M are made through a familiar measuring mode or by way of a simple Methods system with one-touch configuration of scale, temperature, and data storage, with up to 8000 results being saved alongside pre-set limits that can be used as an audit tool Methods may be user-defined or selected from the on-board library. As an example, the ‘Coffee Solids’ Method allows for coffee type and daily offsets to be inputted, so that the %TS achieved using the refractometer in the factory match the results of the laboratory tests used to configure the freeze-drying process, producing instant coffee powder.
RFM300-M Series refractometers all come with software for your PC so that when connected to a network via Ethernet connection, the instrument can be remotely operated by an external service or support centre for diagnostics or even be used for training or installation qualification.
USB ports are standard enabling connection to peripherals including external keyboards, barcode readers or memory sticks. Memory sticks can be used to transfer secure files or as part of a “Back-up & Clone” process that allows fast data back-up or configuration interchange across several instruments.
Software Features of RFM300-M Series
- Dual display (e.g., Brix/ SG)
- Save over 8000 readings
- Reading, user, and configuration audit trails
- Print to secure PDF
- USB “Back-up and clone”
- User maintenance prompts
- Remote diagnostics and control
Specifications of RFM330-M & RFM340-M
| Specifications | RFM330-M | RFM340-M |
|---|---|---|
|
Order Code |
19-35 |
19-45 |
Scales |
||
|
Refractive Index |
1.32 – 1.58 |
1.32 – 1.58 |
Resolution |
||
|
Refractive Index |
0.0001 / 0.00001 (selectable) |
0.000001 (selectable up to 6 d.p.) |
Accuracy |
||
|
Refractive Index Sugar (°Brix) |
±0.00005 ±0.04 |
±0.00002 (1.32 – 1.38 RI) ±0.010 (0 – 30 °Brix) |
Precision (Reproducibility) |
||
|
Refractive Index |
± 0.00001 |
± 0.000005 (6 d.p.) |
|
User Scale Library |
20+ pre-programmed scales including HFCS (3), sugar (4), sucrose SG (3), NaCl, Butyro, Wine Must (5), Urine SG (3), PHR-MEAN and more; plus customer programmable user scales via PC. |
|
|
Reading Time |
Minimum 4 seconds (dependant on precision required) |
|
Temperature Range |
||
|
Ambient |
5 – 40°C |
|
|
Temperature Sensor Accuracy |
± 0.03 °C |
|
|
Sample Temperature Stability
|
± 0.05 °C |
|
Temperature Compensation |
||
|
Sucrose (°Brix) |
5 – 80 °C |
|
|
Temperature Stability Checks |
None/delay time/repeatability/ Smart (independently selectable by Method) |
|
|
Peltier Control Stability
|
± 0.05 °C |
|
|
Sample Illumination
|
Light Emitting Diode 589nm (100,000+ hours)
|
|
|
Prism / Dish
|
Artificial Sapphire / Stainless Steel 316 / PEEK (spill barrier)
|
|
|
Prism Seal
|
Silicon/Resin
|
|
|
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 |
|
|
Humidity Range
|
<90% RH (non-condensing)
|
|
Order Codes of RFM330-M & RFM340-M
| Code | Description |
|---|---|
|
19-35
|
19-35 RFM 330-M Peltier temperature-controlled refractometer with integral 4” full colour high resolution display, robust switch membrane and USB/LAN connectivity. Supplied with pack of two RFID tags, instruction manual and certificate of conformity. |
|
19-45
|
RFM 340-M high precision peltier temperature controlled refractometer with latest integral 4” full colour high resolution display, robust switch membrane and USB/LAN connectivity. Supplied with pack of two RFID tags, instruction manual and certificate of conformity. Three decimal place Brix precision. |
Accessories of RFM330-M & RFM340-M
Miniature Printer, serial, 230VAC, CBM910, Bellingham + Stanley
USB to RS232 printer adaptor for refractometers and polarimeters
Paper rolls (20) for CBM910 printer
Spare ribbon for CBM910 printer, black, each
AG Fluids, UKAS certified solutions covering the range 1.33 – 1.40 RI (0-40 °Brix equivalent). Ideal for calibrating refractometers that have temperature control.
- Calibration, Refractometer, 5×5 ml, AG-AUS32, Bellingham + Stanley
- Calibration, Refractometer, 5×5 ml, AG12 Brix, Bellingham + Stanley
- Calibration, Refractometer, 5×5 ml, AG15 Brix, Bellingham + Stanley
- Calibration, Refractometer, 5×5 ml, AG5 Brix, Bellingham + Stanley
- Calibration, Refractometer, 5×5 ml, AG11.2 Brix, Bellingham + Stanley
- Calibration, Refractometer, 5×5 ml, AG7.5 Brix, Bellingham + Stanley
- Calibration, Refractometer, 5×5 ml, AG12.5 Brix, Bellingham + Stanley
- Calibration, Refractometer, 5×5 ml, AG 2.5 Brix, Bellingham + Stanley
- Calibration, Refractometer, 5×5 ml, AG 40 Brix, Bellingham + Stanley
- Calibration, Refractometer, 5×5 ml, AG 10 Brix, Bellingham + Stanley
Organic compounds, covering the range 1.47 – 1.56 Refractive Index and cover the top end of the Brix scale. Ideal for calibrating refractometers that have temperature control in both food and industrial applications.
- Calibration, Refractometer, 5×5 ml, Oil, 1.53 RI, Bellingham + Stanley
- Calibration, Refractometer, 5×5 ml, Oil, 1.56 RI, Bellingham + Stanley
- Calibration, Refractometer, 5×5 ml, Oil, 1.47 RI, Bellingham + Stanley
Calibration, Refractometer, 15ml, Sucrose, Bellingham + Stanley
Sucrose solutions for calibrating Brix refractometers, covering the range 0-60 °Brix (1.33299 – 1.44193 RI)
RFM 300 Series micro flowcell UNF 28/nozzle
Micro flowcell accessories for transferring volatile, or limited volume, low viscosity liquids as part of a single or multiple instrument analysis.
RFM 300 Series macro flowcell UNF 28/nozzle
Macro flowcells are used where sample viscosity limits the use of micro-flowcells. They are also used for connection to a pilot plant or small batch process line – where a normal process refractometer may not be suitable.
RFM300 Series funnel flowcell UNF 28/nozzle
Funnel flowcell accessory for larger volumes of sample.
Video Information
More Information
Get more information and English brochure for this Digital Refractometer here!
