1 INPUT CONNECTIONS
INPUT HI and LO Used for DC volts, AC volts, and 2-wire resistance measure-
ments
AMPS Used with INPUT LO to make DC current and AC current
measurements
SENSE Ω4 WIRE HI and LO Used with INPUT HI and LO to make 4-wire resistance
measurements
2 FAN Keep filter clean to ensure proper instrument cooling
3 POWER LINE INPUT
90–134VAC and 180–250VAC (universal); 50, 60, or 400Hz (self-identifying at power-up)
WARNING: Connect to grounded outlet using 3-wire power cord
4 LINE FUSE 0.5A, 250V, slow blow, 5×20mm
5 OPTION SLOT An option card installs in this slot
6 AMPS FUSE 2A, 250V, fast blow, 5×20mm
7 DIGITAL I/O A DB-9 connector for the TTL-compatible digital I/O with one input and
four outputs
8 TRIGGER LINK IN and OUT Two 8-pin micro DIN connectors for sending and receiv-
ing trigger pulses among other instruments
9 IEEE-488 CONNECTOR Connects the instrument to the IEEE-488 (GPIB) bus
NOTE: Use shielded IEEE-488 cables
Front Panel Operation 1-7
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