DESCRIPTION:
The HDFM-1 is a handheld camera focus meter you can use to set the maximum focus of any TVI, CVI
High Definition cameras and any analog cameras without the need for a monitor or the subjective nature of
"eyeballing" the cameras image on a small screen. Trying to see the maximum focus point of a High Definition
image on a small test monitor in full sun light is all but impossible and leads to many cameras being set to less
than the maximum focus point. This meter works by measuring the amount of information in the video frame as
it varies with the focus adjustment. As you adjust the camera focus to make a sharper image, the information in
the scene increases and so does the numeric reading on the meter. To get the maximum focus on any camera the
installer connects the meter to the output of the camera and adjusts the focus ring on the camera for a maximum
reading on the meter to get the maximum High Definition advantage from every camera you install. All scenes
will have a different number because the information in the scene is different, but the maximum reading on the
meter will always be the maximum focus point for the camera. The two line LCD displays the focus reading
with a 36 point Bar Graph for course adjustment and a numeric display for the fine adjustment.
This meter will also identify the video format and number of lines of definition of any TVI, CVI or
analog video signal. When connected to a video signal it first identifies the format and Lines of definition of the
video signal and briefly displays that information on the LCD display, then it goes into focus mode so you can
set the maximum focus on the camera. The ability to measure the video format and lines of definition can help
you identify and verify any unfamiliar camera you come across in your work. With the multi-format cameras
and DVRs available today it is easy to identify the output they are set to which could save you a lot of time
troubleshooting miss-matched video formats on the job. It will measure the format of video signals like HD-
TVI, HD-CVI, AHD, CVBS, YPbPr, RGB, and any composite analog video signal.
The HDFM-1 has a comfort grip hand-held case made of flame retardant ABS plastic with a flame
rating of 94-5VA. A battery compartment door allows easy access to the 9-Volt battery that powers the device.
The meter comes with an impact resistant rubber boot to protect it during daily use. This meter uses a "battery
check" system to monitor the battery condition and the LCD display lets you know when it is time to change the
battery. The LCD has a backlight feature so you can use the meter in total darkness if needed. Just push and
hold the power ON button and the display will backlight for easy reading in the dark.
METER OPERATION:
When the meter is powered up it first checks the condition of the battery and if the battery is below 6
Volts (Affectively Dead) in will give you a display indicating “REPLACE BATTERY” and you need to change
out the battery for a good one.
If the battery is low but useable the unit will display “LOW BATTERY” for 2 seconds then and
continue on to the measurement process.
HDFM-1isb
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