307 Series
Horizontal Video Caliper, Video Based Image
Measurement, Video Micrometer, Video Scaler

Now Available for High-Definition!


The Model 307 Video Caliper, for video image measurement and marking, provides the means to take horizontal measurements of objects in a real-time video image.

The Video Caliper superimposes two vertical cursors onto the video display. The user can adjust the position of these cursors by means of front panel controls. The right-most control sets the distance between the cursors by moving the right cursor only. The left control moves both cursors across the screen while maintaining the distance between them. This arrangement allows dimensional comparison of objects across the image without disturbing the distance between the cursors. A 4 digit display indicates the distance.
Three scale adjustment controls calibrate the meter reading for a given distance between the cursors. A switch allows the user to select between the three control settings so that calibrations can be made and then selected as necessary for three different optical setups. These calibrations must be made any time the optics or distance between the image sensor and the object under scrutiny change. These controls require a small screw driver for adjustment in order to avoid inadvertent disturbence of the calibration.

The cursors can be set to white, black, or off. Power input requirement is 9 VAC at about 150 mA. An AC adapter is included. The adapter is UL listed for safety and isolates the model 307 from ground in order to avoid interference inducing ground-loops.

Video Measurement, Video Inspection Instrument - Medical
Measure diameters of blood vessels or changes in cellular dimensions using this video based measurement device and video inspection instrument.

Examples of Laboratory Applications that benefit from video measurement equipment:

Oxygen Responses of Arteriolar Smooth Muscle Cells in Vivo...

Conducted dilations initiated by purines in arterioles are endothelium dependent...

Weakness of Sympathetic Neural Control of Human Pial...

Alterations in rat coronary vasoreactivity....

Functionality Synonyms:
Video Caliper
Video Micrometer
Video Scaler
Video Based Measurement
Video Measurement
Video Dimension Analysis
Video Marking

All Units: 307, 307A (NTSC & PAL)
Stores Three Selectable Scale Calibrations
3 1/2 Digit Display Reads 0000 to 1999
User Positionable Decimal Point
S-Video Optional (Composite Standard)

Owner's Manual:
6.9"W x 4.9"L x 2.4"H sloping to 1.4"H
Free standing desktop
Power Connector:
0.125" mini-phone power jack
Power Input:
9 VAC (120 VAC Adaptor included where appropriate)
Black ABS
Video Input/Output:
1Vp-p, composite, 75 ohm (S-video optional)
NTSC Video, PAL Video, S-Video, Analog Dimension Output
I/O Connectors:
BNC (4-pin mini-DIN for s-video)
Controls :
Decimal (switch): Selects Decimal Display Position
Lines (switch): Selects Off, Black, or White
Calibrate (3) (pontiometers): Calibrates Display to Known Reference
Calibration (switch): Selects Between 3 Different Calibration Potentiometers
307: Video Caliper
Position (Single-turn potentiometer): Moves Both Cursors
Distance (Single-turn potentiometer): Moves Only Right Cursor
307A: Video Caliper
Position (Ten-turn potentiometer): Moves Both Cursors
Distance (Ten-turn potentiometer): Moves Only Right Cursor
Online Ordering and Pricing
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S-video for any Standard Definition Video Caliper
Analog Dimension Output for any Standard Definition Video Caliper
and RoHS
CE and RoHS Compliance required by the EU (and some other jurisdictions) for any Video Caliper

All prices F.O.B. Boulder, Colorado.

P.O. Box 952 Longmont, CO 80502 USA    Tel +1-303-530-9580    sales@colorado-video.com
Business Hours: 9AM to 4PM Mountain Time (GMT-7 Winter, GMT-6 Summer), excluding weekends & holidays.

Copyright 2004-2018   Colorado Video, Inc.