Hitachi vl-21a instruction manual Measurement Conditions Standard Measurement Conditions

9.Appendix 2

9.1Measurement Conditions

Standard Measurement Conditions

Supplied Voltage	DC 12 volts ± 0.5 volts
Ambient Temperature	23° C
Humidity	60% RH
Measurement Fixture	Video Output, DC input, RS-232C level Convert (5Vp-p -> 12Vp-p)
Power Supply	12 volts ± 0.5 volts
Color Monitor	CMM20 - 11, Shibasoku or Equivalent
Monochrome Monitor	More than 800 TV Lines of Resolution
Waveform / Vector Scope	1720A, Tektronix or Equivalent
S/N (Signal to Noise) Meter	VN31AX, Shibasoku or Equivalent
Illumination Meter / Color	XY - 1 / CL - 100, Minolta Camera or Equivalent
Temperature Meter
Light Box	Dai Nippon Printing Co.
	-Color Temperature 3200° K ± 100° K
	-Illumination More than 2000 lux
Test Charts	(Transparent Chart)
	Color Bar Chart, Dai Nippon Printing Co.
	Gray Scale Chart, Dai Nippon Printing Co. (Gamma 0.45)
	Resolution Chart, Dai Nippon Printing Co. (Reflective Chart)
	Gray Scale Chart, Murakami Color Research Lab
Light Source	Halogen Lamp (with Dimmer Switch)
	Color Temperature 3200° K ± 100° K
	Illumination Variable with Dimmer
Color Temperature Filter	LB 140, Hoya or Kenko or Equivalent
	(Color Temperature Conversion Filter)
Adjustment PC	With Serial Port 1 or 2
RS-232C Cable	Each Terminal Connector (D-Sub 9 pin)

19