HP 3457A Service Manual page 14

Table 1-1. Specifications
DC CURRENT (Cont'd)
MAXIMUM READING RATES: (Readings/Second)
INTEGRATION | DIGITS READING RATE
TIME DISPLAYED | 60 HZ [50 Hz
0.0005 PLC 3 1/2 1350 | 1350
0.005 PLC 41/2 1250 | 1250
0.1 PLC 5 1/2 360 312
1 PLC 6 1/2 53 45
10 PLC 6 1/2 4.8 4.0
6 100 PLC we -48 +40
RESISTANCE
(2-Wire Ohms, 4-Wire Ohms, Offset Compensated Ohms)
INPUT CHARACTERISTICS:
MAXIMUM RESOLUTION CURRENT
INPUT PROTECTION: (non-destructive)
HI sense to LO sense: +350V peak.
HI or LO to Earth ground: +450V peak.
MAXIMUM OPEN CIRCUIT VOLTAGE:
30 Ohm to 3 Megohm ranges: 12 volts
30 Megohm to 3 Gigaohm ranges: 8.5 volts