ASHA PMB-101 Manual - Page 14

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Preparation and Measurement

To set up the device, first it is necessary to put the sensor perpen-

dicular to the beam axis with the proper connection at the desired

location, and then connect the sensor cable to the device.

The device has a display on its front panel, and it's possible to directly

display the result on the screen in addition to measuring through the

multimeter. The output of this device, according to the order, is able

to be calibrated for required wavelengths, so that the output voltage

of the device reports the exact amount of beam power.

If you want to measure power using a voltmeter, using the supplied

cable, connect the analog output of the device (BNC port) to the cor-

responding BNC cable, then connect the black probe to the COM port

and the red probe to the voltmeter. Then turn on the device by using

the On/Off key. If the device has enough battery, the display on the

front panel of the console will turn on. Otherwise, connect the adapter

to the input power connector. In this case, the red light turns on on the

on/off key, which means that the battery is charging and you can use

the console at the same time. When the battery is fully charged, the

red light will turn off and you can unplug the adaptor from the console.

This device can measure 12 wavelengths specified in the techni-

cal table. To prepare the device to measure the desired wavelength,

turn the selector and select the desired wavelength. For the user's

convenience, the wavelengths of the device with the corresponding

approximate color are indicated symbolically on the front panel. Ob-