Model 2107-4, 2107-17, 2107-30, and 2107-50
Keithley Instruments
28775 Aurora Road
Cleveland, Ohio 44139
1-800-935-5595
http://www.tek.com/keithley
Low-thermal Input Cables with Spade Lugs
Description
The Model 2107 Low-Thermal Input Cables with Spade Lugs are input cable assemblies for the Model 2182
Nanovoltmeter. The assemblies are terminated with a two-channel LEMO connector on one end and four
copper spade lugs on the other.
For details on making connections to a test device, refer to the 2182 Nanovoltmeter User's Manual.
Figure 1: Model 2107 Low-Thermal Input Cable with Spade Lugs
The cable assembly is available in four lengths. The 2107-4 is supplied with the 2182 Nanovoltmeter.
Model number Cable length
2107-4 1.2 m (4 ft)
2107-17 5.2 m (17 ft)
2107-30 9.1 m (30 ft)
2107-50 15.2 m (50 ft)
General specifications
Connector isolation: > 10 GΩ
Capacitance: < 35 pF per foot
Installation category: I
Maximum ratings: 350 V
Operating temperature: 0 ºC to 70 ºC (32 ºF to 158 ºF)
Storage temperature: -40 ºC to 70 ºC (-40 ºF to 158 ºF)
peak
, 1 A
PA-568 Rev. B / October 2017 *PPA-568B* 1
Model 2107-4, 2107-17, 2107-30, and 2107-50
Input terminal cleaning
Before connecting the input cable to the 2182, clean the copper contacts of the LEMO connectors using DeoxIT
D100L deoxidizing solution.
Clean the input terminals whenever the cable is disconnected from the Model 2182 for an extended
period of time. A bottle of DeoxIT is supplied with the Model 2182.
1. Turn off the 2182.
2. Disconnect the power cord and any other cables or wires connected to the instrument.
3. Stand the 2182 on end so that the front panel is facing up.
4. Apply one drop of DeoxIT to each of the four contacts of the LEMO input connector on the 2182. You can
use a clean wire (such as a resistor lead) to carry a drop of the solution from the bottle of DeoxIT to the
connector.
5. Wipe off any excess DeoxIT using a clean cloth.
6. Connect and disconnect the cable from the Model 2182 several times to spread the DeoxIT solution and to
clean the input cable contacts.
Warnings
Do not exceed the maximum signal levels of the accessory or the attached instruments, as
defined in the specifications and operating information.
Probe tips should only be used by qualified personnel who recognize shock hazards and are
familiar with the safety precautions required to avoid possible injury. Inspect the probe tips,
lead insulation, and insulating sheaths for wear, cracks, or breaks before each use. To
prevent voltages from being exposed or connections from shorting together, make sure the
probe tips and test leads are properly connected before applying power.
Never touch or change the connections when power is applied to the circuit under test.
Always turn off test system power and discharge all capacitors before connecting or
disconnecting the probe tips.
Failure to adhere to these guidelines can result in personal injury or death due to electric
shock.
2 PA-568 Rev. B / October 2017
Safety precautions
The following safety precautions should be observed before using this product and any associated instrumentation. Although
some instruments and accessories would normally be used with nonhazardous voltages, there are situations where hazardous
conditions may be present.
This product is intended for use by personnel who recognize shock hazards and are familiar with the safety precautions required
to avoid possible injury. Read and follow all installation, operation, and maintenance information carefully before using the
product. Refer to the user documentation for complete product specifications.
If the product is used in a manner not specified, the protection provided by the product warranty may be impaired.
The types of product users are:
Responsible body is the individual or group responsible for the use and maintenance of equipment, for ensuring that the
equipment is operated within its specifications and operating limits, and for ensuring that operators are adequately trained.
Operators use the product for its intended function. They must be trained in electrical safety procedures and proper use of the
instrument. They must be protected from electric shock and contact with hazardous live circuits.
Maintenance personnel perform routine procedures on the product to keep it operating properly, for example, setting the line
voltage or replacing consumable materials. Maintenance procedures are described in the user documentation. The procedures
explicitly state if the operator may perform them. Otherwise, they should be performed only by service personnel.
Service personnel are trained to work on live circuits, perform safe installations, and repair products. Only properly trained
service personnel may perform installation and service procedures.
Keithley Instruments products are designed for use with electrical signals that are measurement, control, and data I/O
connections, with low transient overvoltages, and must not be directly connected to mains voltage or to voltage sources with high
transient overvoltages. Measurement Category II (as referenced in IEC 60664) connections require protection for high transient
overvoltages often associated with local AC mains connections. Certain Keithley Instruments measuring instruments may be
connected to mains. These instruments will be marked as category II or higher.
Unless explicitly allowed in the specifications, operating manual, and instrument labels, do not connect any instrument to mains.
Exercise extreme caution when a shock hazard is present. Lethal voltage may be present on cable connector jacks or test
fixtures. The American National Standards Institute (ANSI) states that a shock hazard exists when voltage levels greater than
30 V RMS, 42.4 V peak, or 60 VDC are present. A good safety practice is to expect that hazardous voltage is present in any
unknown circuit before measuring.
Operators of this product must be protected from electric shock at all times. The responsible body must ensure that operators
are prevented access and/or insulated from every connection point. In some cases, connections must be exposed to potential
human contact. Product operators in these circumstances must be trained to protect themselves from the risk of electric shock. If
the circuit is capable of operating at or above 1000 V, no conductive part of the circuit may be exposed.
For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit under
test. ALWAYS remove power from the entire test system and discharge any capacitors before: connecting or disconnecting
cables or jumpers, installing or removing switching cards, or making internal changes, such as installing or removing jumpers.
Do not touch any object that could provide a current path to the common side of the circuit under test or power line (earth)
ground. Always make measurements with dry hands while standing on a dry, insulated surface capable of withstanding the
voltage being measured.
For safety, instruments and accessories must be used in accordance with the operating instructions. If the instruments or
accessories are used in a manner not specified in the operating instructions, the protection provided by the equipment may be
impaired.
Do not exceed the maximum signal levels of the instruments and accessories. Maximum signal levels are defined in the
specifications and operating information and shown on the instrument panels, test fixture panels, and switching cards.
Chassis connections must only be used as shield connections for measuring circuits, NOT as protective earth (safety ground)
connections.
The WARNING heading in the user documentation explains dangers that might result in personal injury or death. Always read
the associated information very carefully before performing the indicated procedure.
PA-568 Rev. B / October 2017 3
The CAUTION heading in the user documentation explains hazards that could damage the instrument. Such damage may
invalidate the warranty.
The CAUTION heading with the symbol in the user documentation explains hazards that could result in moderate or minor
injury or damage the instrument. Always read the associated information very carefully before performing the indicated
procedure. Damage to the instrument may invalidate the warranty.
Instrumentation and accessories shall not be connected to humans.
Before performing any maintenance, disconnect the line cord and all test cables.
To maintain protection from electric shock and fire, replacement components in mains circuits — including the power
transformer, test leads, and input jacks — must be purchased from Keithley Instruments. Standard fuses with applicable national
safety approvals may be used if the rating and type are the same. The detachable mains power cord provided with the
instrument may only be replaced with a similarly rated power cord. Other components that are not safety-related may be
purchased from other suppliers as long as they are equivalent to the original component (note that selected parts should be
purchased only through Keithley Instruments to maintain accuracy and functionality of the product). If you are unsure about the
applicability of a replacement component, call a Keithley Instruments office for information.
Unless otherwise noted in product-specific literature, Keithley Instruments instruments are designed to operate indoors only, in
the following environment: Altitude at or below 2,000 m (6,562 ft); temperature 0 °C to 50 °C (32 °F to 122 °F); and pollution
degree 1 or 2.
To clean an instrument, use a cloth dampened with deionized water or mild, water-based cleaner. Clean the exterior of the
instrument only. Do not apply cleaner directly to the instrument or allow liquids to enter or spill on the instrument. Products that
consist of a circuit board with no case or chassis (e.g., a data acquisition board for installation into a computer) should never
require cleaning if handled according to instructions. If the board becomes contaminated and operation is affected, the board
should be returned to the factory for proper cleaning/servicing.
Safety precaution revision as of June 2017.
4 PA-568 Rev. B / October 2017
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