DM4LX / Svartir666

NEC TH7102W Thermal Camera

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Erstellt: 2021-12-31 / Geändert: 2021-12-31 / REV 01

The NEC TH7102W is a early 2000s thermal camera with fluid frame rate (up to 60 fps).

It's equipped with a motor driven focus and a uncooled microbolometer. Video output via RCA (FBAS/Composite) or proprietary connector (S-Video) is available. Storage is provided with a CF card slot.

Power Supply

An off-the-shelf JVC camcorder battery or an external DC source can be used. I've measured following characteristics on the battery port:

Parameter	Symbol	Value
Nominal Voltage	\( U_\mathrm{N} \)	\( 7.2~\mathrm{V} \)
Current Draw, Typ.	\( I_\mathrm{N} \)	\( 450~\mathrm{mA} \)
Cirremt Draw, Peak	\( I_\mathrm{pk} \)	\( 3~\mathrm{A} \)

Pinout, frontal view on battery port:

          +------------------------------
    Pin 1 |=  <---  +7.2 V
          |
          |
          |       
    Pin 2 |-
          |
    Pin 3 |-  <---  10 kOhm NTC to 0 V
          |         (oder fixed resistor)
    Pin 4 |-
          |
          |
          |
    Pin 5 |=  <---  0 V
          +------------------------------
    
    The camera doesn't power up without Pin 3.

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