By turning the measuring unit knob, the measuring unit moves up and down. With the Auto Measure option, the sample cover can also be used to initiate measurement. At the date this document was published, there is no other laboratory instrument manufacturer guaranteeing service and technical support for 20 years. Correction Range 4ºC - 95ºC for pure sucrose solutions Temp. Of course, call us anytime for personalized service. Insert new fuses into the fuse holders. The rings have wide measurement ranges from 1.
The J357 offers laboratory flexibility with industrial strength and simplicity making this model series at home on the laboratory bench or on the factory floor. Calibration can be done at 20°C, 25°C or any user selectable temperature within the available range. If the line voltage is too high or too low, the device may not give full performance. If the measurement result is not stable, take some additional shots. Water baths need to be regularly filled, dosed with algaecide and cleaned. You will hear a short beep, and the alignment light will stop blinking. Return to view the entire Rudolph Research All Rudolph Instruments carry our exclusive 20 Commitment to service your instrument.
Measurable minimum pupil diameter is 2. This may cause a loss of text or lightly printed text. In only 4 seconds, measured mapping data is displayed on the display screen of the unit. Press four times so that the date and time setting mode is established. Rudolph has demonstrated a commitment to its customers by keeping installed instruments operational, not only for 20 years, but in some cases for over 40 years. The Rudolph J Series refractometers offer a flat, easy to clean prism that makes this process simple even with sticky samples like sugars, syrups, and petrochemicals. If the device falls, it may malfunction or cause injury.
Additionally a memory of placidoring image is displayed, cornea shape mapping is displayed and overlaying mapping onto the anterior segment can be shown. Simple Refractometer Operation Operating the J357 Automatic refractometer is as simple as placing a sample on the artificial sapphire prism, closing the presser and reading the answer on the Digital Display — all in just a few seconds. This will be useful in understanding a cornea shape, contact lens fitting, early detection of a cornea surface anomaly and examination of astigmatism after surgical operation. If an anomaly is detected with the cornea shape during measurement, a message will be displayed. Align the eye position to the measuring point with right, left, up and down movements. Moreover, remove one piece of chinrest paper for each patient if a stack of the chinrest paper is fixed to the chinrest.
Dual Electronic Temperature Control to 100 °C Unlike other temperature controlled refractometers, the J357 has temperature control from both above and below the sample. The spherical power is over the measurable limit of the - side. This manual includes the operating procedures, safety precautions, specifications, and information about accessories and maintenance. The sample cover is controlled to the same temperature as the prism and, when lowered, is designed to provide a temperature controlled micro environment that provides unrivaled temperature stability, fast measurement time and minimal evaporation. An image can be zoomed on the monitor screen and a placidoring projection image of a measured eye can be printed out for an explanation and recording.
Refractometer Calibration The J357 offers 1 point, 2 point or a full multi-point calibration. Instruct the patient not to blink, and try again. These limits are designed to provide reasonable protection against harmful interference in a typical medical installation. Automatic Refractometer, J357 Offers Highest Performance for Research Labs. In such a case, stop using the printer and replace the paper with a new one. Interface Solutions Rudolph allows the lab manager to select from different interface options because we understand laboratories and manufacturing floors have different needs when it comes to the information required for monitoring a process.
For stubborn dirt, immerse the cloth in a neutral detergent, wring well, and wipe. Optional Sample Presser The Rudolph J357 is available with an optional Temperature Controlled Sample Presser that touches the sample. Accurate measurement by all-round data of ten rings is assured. Selectable between 35 - 70 cm in the system parameters. Turn off the power switch. The Rudolph live reading and trend analysis feature allows users to easily and quickly see how a process is going and catch minor deviations before they become major ones. All functions are activated through a touchscreen panel which will not wear out or be misplaced like traditional or detachable keypads.
This long-term commitment to keeping our instruments running makes the cost of ownership, over the life of a Rudolph Instrument, one of the lowest in the laboratory market segment. It is impossible to set a whole stack of chinrest paper. Long term data collection is a part of any good process. The digital touchscreen is resistant to fingernails, sharp objects, chemicals, and acids. When out of specification conditions happen, material has to be quickly identified and decisions made as to what to do with the product. If necessary, wipe the forehead rest and chinrest using a cloth dampened with rubbing alcohol.