Measurement Computing DAC488 v.1 - Manual (Page 27)

DAC488 User’s Manual DAC488 Power & Assembly 21
To Verify the Port Voltage – 10-Volt Range
1. Send the following command string to the DAC488: C0 P1 A0 R3 V10 X where:
•
C0 = Direct Control Mode
•
R3 = 10-Volt Range
•
P1 = Port 1
•
V10 = Output +10 Volts
•
A0 = Autorange Off
•
X = Execute
2. Send the following command string to the 199 DMM: F0 R3 Z0 N1 S1 X where:
•
F0 = DC Volts
•
N1 = Scanner Channel 1
•
R3 = 30-Volt Range
•
S1 = 5 ½ Digit Resolution
•
Z0 = Zero Disabled
•
X = Execute
3. For each test, the specific Value Output ( V ) command, its commanded output voltage, and its
corresponding Low Limit and High Limit, are as follows:
•
V10 = Output +10 V +9.985
≤
Reading
≤
+10.015 Volts
•
V5 = Output +5 V +4.990
≤
Reading
≤
+5.010 Volts
•
V1 = Output +1 V +0.994
≤
Reading
≤
+1.006 Volts
•
V0 = Output 0 V -0.005
≤
Reading
≤
+0.005 Volts
•
V-1 = Output -1 V -1.006
≤
Reading
≤
-0.994 Volts
•
V-5 = Output -5 V -5.010
≤
Reading
≤
-4.990 Volts
•
V-10 = Output -10 V -10.015
≤
Reading
≤
-9.985 Volts
To Verify the Port Voltage – 5-Volt Range
1. Send the following command string to the DAC488: C0 P1 A0 R2 V5 X where:
•
C0 = Direct Control Mode
•
R2 = 5-Volt Range
•
P1 = Port 1
•
V5 = Output +5 Volts
•
A0 = Autorange Off
•
X = Execute
2. Send the following command string to the 199 DMM: F0 R3 Z0 N1 S1 X where:
•
F0 = DC Volts
•
N1 = Scanner Channel 1
•
R3 = 30-Volt Range
•
S1 = 5 ½ Digit Resolution
•
Z0 = Zero Disabled
•
X = Execute
3. For each test, the specific Value Output ( V ) command, its commanded output voltage, and its
corresponding Low Limit and High Limit, are as follows:
•
V5 = Output +5 V +4.9920
≤
Reading
≤
+5.0080 Volts
•
V2.5 = Output +2.5 V +2.4945
≤
Reading
≤
+2.5055 Volts
•
V1 = Output +1 V +0.9960
≤
Reading
≤
+1.0040 Volts
•
V0 = Output 0 V -0.0030
≤
Reading
≤
+0.0030 Volts
•
V-1 = Output -1 V -0.9960
≤
Reading
≤
-1.0040 Volts
•
V-2.5 = Output –2.5 V -2.4945
≤
Reading
≤
-2.5055 Volts
•
V-5 = Output -5 V -4.9920
≤
Reading
≤
-5.0080 Volts