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> 3M tobias tranmission densitometer density reader meter
3M tobias tranmission densitometer density reader meter
The instrument is designed for use in conjunction with the Tobias WEJEX sensitometer or a manufacturer-exposed film strip in checking film processor chemistry. The TBX has been designed for user convenience and error-free measurement. Table illumination facilitates film placement, and the entire operation requires only one hand, leaving the other free for note taking or sample repositioning. When a film sample is placed over the table aperture and the probe depressed, density readings are displayed on a 7-segment LED. An "auto-zero" feature automatically sets zero with the first reading. Subsequent zero settings are obtained by momentarily depressing a "null/zero" switch on the front panel. In the null position the switch permits density difference readings to be made. A standard serial RS-232 port provides output connection to a printer, computer, or process control system. Companion instrument to the WEJEX sensitometer Handles photographic, radiographic and micrographic films Simple pushbutton control of all modes Automatic zeroing Serial RS-232 port
