6517B-900-01 Rev. A / Jun 2008 Return to Section Topics 2-5
Model 6517B Electrometer User’s Manual Section 2: Getting Started
3COMMON
Connector that is internally connected to INPUT low.
4 CHASSIS GROUND
Attached cable that connects the chassis to ground through the power line cord. COMMON can be
connected to chassis ground by plugging the cable into COMMON. For floating measurements, make sure
the ground cable connection between COMMON and Chassis Ground is open.
5 2V ANALOG OUTPUT
Connector provides a scaled 0 to 2V output that is referenced to COMMON. It is typically connected to a
measuring device such as a chart recorder. See the Model 6517B Reference Manual for more information.
6 HUMIDITY
Connect the optional Keithley Instruments Model 6517-RH probe for relative humidity measurements.
7 TEMP TYPE K
Connect the Keithley Instruments Model 6517-TP type K thermocouple for temperature measurements.
8 POWER LINE INPUT MODULE
Provides connections for power line input and contains the line fuse. If the fuse needs to be replaced, refer
to the procedure in Section 2 of the Model 6517B Reference Manual.
9 IEEE-488 CONNECTOR
Connects the Model 6517B to the IEEE-488 (GPIB) bus. Use shielded IEEE-488 cables.
10 INTERLOCK
Connects the safety interlock to a test fixture using an appropriate cable. Interlock is automatically enabled
when the appropriate interlock cable is connected to the 6517B. Rated at 50-60 Hz, 140 VA max. The
interlock’s CS-1305 connector includes four pins (left to right as viewed from rear of the 6517B):
• Pin 1: Interlock safe
• Pin 2: Ground
• Pin 3: +5 VDC output
• Pin 4: Surface/volume select (low = volume, high = surface)
11 RS-232
DB-9 connector for the RS-232 interface. Use a standard RS-232 cable.
12 DIGITAL I/O
A male DB-9 connector for the four TTL-compatible digital output lines.
13 TRIGGER LINK
An 8-pin micro DIN connector for sending and receiving trigger pulses to and from other instruments.
14 V-SOURCE HI and LO
Safety banana jacks for the voltage source.
15 OPTION SLOT
An option card, such as the Keithley Instruments Model 6521 or Model 6522 scanner card, can be installed
in this slot.
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176
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