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Maintenance
Performance Tests
7
7-7
Accuracy Verification Test
1. Power up the instrument and allow the temperature to stabilize for 30 minutes.
2. Connect a cable from the Output VA HI and LO connectors of the 5700A to the VΩ
and COM connectors on the front panel of the Hydra Series II. Select the channel 0
function and range on the Hydra Series II and the input level from the 5700A using
the values listed in Table 7-3. Press the M (monitor) button to measure and display
the measurement value for channel 0. The display should read between the minimum
and maximum values listed in the table.
Table 7-3. Performance Tests (Voltage, Resistance, and Frequency)
FUNCTION
RANGE INPUT LEVEL FREQUENCY
DISPLAY ACCURACY
(1 Year, 18-28°C)
MIN MAX
DC Volts 90 mV
90 mV
300 mV
short (0)
90 mV
0V
--
--
--
-0.006
89.972
-0.02
0.006
90.028
0.02
300 mV 150 mV -- 149.94 150.06
300 mV 290 mV -- 289.91 290.09
3V 2.9V -- 2.8991 2.9009
-3V -2.9V -- -2.9009 -2.8991
30V 29V - 28.991 29.009
150V 150V -- 149.94 150.06
300V 290V -- 289.91 290.09
NOTE
Voltages greater than 150V can only be applied to channels 0,1, and 11.
AC Volts 300 mV 20 mV 1 kHz 19.71 20.29
300 mV 20 mV 100 kHz 18.50 21.50
300 mV 290 mV 1 kHz 289.28 290.72
3V 290 mV 100 kHz 275.00 305.00
3V 2.9V 1 kHz 2.8937 2.9063
30V 29V 1 kHz 28.931 29.069
150V 150V 1 kHz 149.54 150.46
300V 290V 1 kHz 289.34 290.66
NOTE
Voltages greater than 150V can only be applied to channels 0, 1, and 11. The rear Input Module must
be installed when measuring ac volts on channel 0.
NOTE
For 2-terminal measurements, the resistance accuracy given in this table applies to Channel 0 and
makes allowance for up to 0.05 ohm of lead wire resistance. You must add any additional lead wire
resistance present in your set up to the resistance values given in this table.
Resistance Using inputs in decades of 3:
300 e short 0.00 0.09
300e 299.90 300.15
3 ke short 0.0000 0.0003
3 ke 2.9989 3.0011
30 ke 30 ke 29.990 30.010
300 ke 300 ke 299.88 300.12
3 Me 3 Me 2.9979 3.0021