Do you have a question about the Yeasn HX-400 and is the answer not in the manual?
Details about the company producing the pupilometer, including name and address.
Explains the intended use of the pupilometer for measuring pupillary distance in humans.
Describes the device's design, integration of technologies, and key features.
Details critical specifications like measurement range, errors, and power source.
Explains the meaning of various symbols found on the device's name plate and indications.
Lists the components included in the package with the pupilometer.
Details all the components and controls located on the front of the pupilometer.
Identifies and explains the components found on the back side of the pupilometer.
Describes the elements visible and used within the measuring window of the device.
Details the target and visual field observed by the testee during operation.
Provides guidance on battery installation, type, and proper handling to ensure device functionality.
Explains the correct procedures for powering the pupilometer on and off.
Step-by-step guide on how to measure the pupillary distance between both eyes.
Details the procedure for measuring the pupillary distance for a single eye.
Instructions on how to measure the Visual Distance (VD) using the pupilometer.
Guides on adjusting LED brightness and configuring the automatic power-off feature.
Explains how to adjust and set the precision level for the measurement results.
Instructions on using the calibration mark to ensure measurement accuracy.
Specifies the recommended temperature, humidity, and pressure for operating the device.
Outlines the environmental requirements for safely transporting and storing the pupilometer.
Indicates the expected operational lifespan of the device with proper care.
| Resolution | 1 ppm |
|---|---|
| Sensor Type | Electrochemical |
| Response Time | <30 seconds |
| Operating Humidity | 15% to 90% RH (non-condensing) |
| Accuracy | ±5% F.S. |
| Dimensions | 120mm×65mm×30mm |