Honeywell manual January UDA2182 Universal Dual Analyzer Product Manual 175

											Input Calibration
	Step		Action						Screen
						Use				to select
									Bias Scan
4		Press	Enter	to initiate the				You will see:
		Bias Scan screen							IN1 BIAS SCAN
						Enter to scan				0.55V	144μA
						240
						160
						80
		At any time press “Exit” to
						μA 00		0.2 0.4		0.6	0.8 1V
		abort scan.
					µA may be 0, 40, 80, 120
5		Press	Enter	to start scan	Scan in Progress (Example)
					The bias voltage is adjusted down
					from its original value (usually 0.55V)
					at 25mV/sec until 0V is reached.
									IN1 BIAS SCAN
						Scanning				0.05V	13μA
						240
						160
						80
						μA 0
							0	0.2 0.4		0.6	0.8 1V

Then the bias voltage is driven up to 1.0 V at 25 mV/sec until “Scan complete” appears.

IN1 BIAS SCAN

Scan complete		0.90V	236μ	A
240
160
80
μA 0
	0 0.2 0.4	0.6	0.8 1V

and finally, it is driven down again until it has returned to the value it had just before the test was initiated. During this voltage sweep, the probe current is monitored and the graph of current as a function of voltage is displayed.

IN1 DO BIAS SCAN

Ent=save,=Chng 0.55V 144μA 240

160

80

μA 00 0.2 0.4 0.6 0.8 1V

At the completion of the test an opportunity to change the bias voltage is provided.

Press to change the bias voltage, or

January 2009 UDA2182 Universal Dual Analyzer Product Manual 175