SPECIFICATIONS MODELWM4201 SINE/SQUARE WAVE DIFFERENTIAL WATTMETER
	Power Range:	0 to 12 watts, direct digital reading with 50 mw resolution.
	Input Voltage Ranges:           Range 1:           Range 2:           Range 3:           Range 4:	5 to 10VRMS 10 to 20VRMS 20 to 40VRMS 40 to 80VRMS
	Input Configuration:	Four wire transformer isolated
	Power Factor:	1.0 to +/-0.3
	Waveform:	Sine Wave
	Accuracy:	2.5 to 12 Watts 2% of reading for 1.0-0.5pf loads; de-rates to 3% at 0.3pf	Below 2.5 Watts 50mw for 1.0 - 0.5pf loads; de-rates to 75mw at 0.3pf
	Stability:           Vs Time:           Vs Line:           Vs Temp:	+/-0.1%/week under constant conditions. +/-0.01% for +/-10V line +/-0.01%/deg C, 15 to 40 deg C.
	Frequency Range:	400Hz to 5000Hz
	Differential Sensitivity and Response Time: (Switch Selected)           Position 1:           Position 2:           Position 3:           Position 4:           Position 5:           Position 6:	+/-10watt full scale +/-1watt full scale +/-0.5watt full scale +/-0.2watt full scale +/-0.1watt full scale +/-100mw full scale	Fixed Response Time Less than 100msec Less than 100msec Less than 100msec Less than 100msec 100 msec 200 msec
	Recorder Output:	+/-1 volt full scale @ 1.9K ohm +/-1% source impedance; will deliver +/-0.5ma into a 100 ohm load.
	Burden Offset Control:	Front panel 10 turn potentiometer permits offset of voltage burden due to the voltage channel as well as the source remote sense burden, and other voltage monitoring equipment.
	Auxiliary Response Switch:	Front panel switch that permits selection of additional filtering when desired.
	Physical:	7" max high standard 19" rack panel mount
	Input Power:	115V +/-10V, 50/60 Hz
	NOTE: May be strapped for 220/230/240 volt operation

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Vartek Corporation 420 South Perry Lane - Suite 5 Tempe, Arizona 85281 U.S.A.