Model 2750 Multimeter/Switch System User’s Manual Getting Started 1-3
Inspection
Model 2750 was carefully inspected electrically and mechanically before shipment. After
unpacking all items from the shipping carton, check for any obvious signs of physical
damage that may have occurred during transit. (There may be a protective film over the
display lens, which can be removed). Report any damage to the shipping agent immedi-
ately. Save the original packing carton for possible future shipment. The following items
are included with every Model 2750 order:
• Model 2750 with line cord.
• Safety test leads (Model 1751).
• Accessories as ordered.
• Hardware for rack mounting.
• Certificate of calibration.
• Model 2750 User’s Manual (P/N 2750-900-00).
• Manual Addenda (pertains to any improvements or changes concerning the instru-
ment or manual).
If an additional manual is required, order the appropriate manual package. The manual
packages include a manual and any pertinent addenda.
Options and accessories
Plug-in switching modules
NOTE Table 1-1 provides a side-by-side comparison of the following Keithley switch-
ing modules. All multiplexer modules can be configured as two independent
multiplexers.
NOTE The Model 77XX Series Switching Modules Instruction Manual provides operat-
ing and service information for the switching modules. This manual is supplied
with each switching module.
Model 7700 — This differential multiplexer provides 20 channels of 2-pole input, or 10
channels of 4-pole input. The internal cold junction allows direct-connection of thermo-
couples. It also has two 2-pole channels used exclusively for current input.
Model 7701 — This differential multiplexer provides 32 channels of 2-pole input, or 16
channels of 4-pole input.
Model 7702 — This differential multiplexer provides 40 channels of 2-pole input, or 20
channels of 4-pole input. It also has two 2-pole channels used exclusively for current
input.
2750-900-01.book Page 3 Wednesday, August 3, 2011 7:56 AM
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