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Option MP-2: Kelvin Mini-Probes
Option "MP-2" is a 48"shielded lead set, handheld pencil type, terminated in spring
loaded steel tips with 0.18" separation. (1 Amp max.)
Option MP-3: Kelvin Micro-Probes
Option "MP-1" is a 48" shielded lead set (dual banana), handheld pencil type, terminated
in spring loaded steel tips with .08" separation (1 amp max.). Special orders or modified
versions available upon request.
Option MP-4/MP-5: Surface Probes
These probes permit rapid, repeatable bonding testing on a variety of screened or flat
surfaces. Test current is evenly distributed through the probe base while sensing is
accomplished via a spring loaded center contact. The "MP-4" target area is 1" in
diameter. The "MP-5" target area is .4" in diameter.
Option KK: 4-Wire Kelvin Lead Set
Option "KK" is a 48" heavy duty cable set terminated in large "jaws" that have an open
span of 2".
Option C: Banana-to-Clip Cable
Option "C" is a 48" shielded cable terminated in dual alligator clips
Option BBL: Banana-to-Banana Cable
Option "BBL" is a 48" shielded cable terminated in dual banana plugs at both ends.
Option KCS: Kelvin Clips
Option "KCS" is the gold plated Kelvin clips used on the Option "K" cable. These clips
may be used when making custom cables or when repairing Option "K".
Option JAWS: Heavy-Duty Clips
2" opening for use on large bushings, transformers and motors. The upper/lower jaw teeth
(gold plated) provide true 4-wire measurement. Can accommodate up to 150 amps.
Interface
Option BCD: Data Output
This option provides parallel BCD data on p rear-panel 50-pin connector. All outputs are
TTL comparable levels with a drive capability of 1 LS load. The Option BCD may be
used to drive the Valhalla Model 1248. (
See Chapter 8)
Model 1248: Dual-Limit Comparator
The Valhalla Model 1248 may be used in conjunction with a 4021 and Option BCD above.
The Model 1248 is a dual-limit BCD comparator that interprets the display indications of
the ohmmeter as either "HI", "LO" or "GO", based on a tolerance that is set by the user.
Relay contact closure is provided to trigger an alarm, counter, batch sorter or other device.
The 1248 also reduces operator workload by allowing him to make an instant determination
of the test results. The mating cable from the ohmmeter to the 1248 is 3' in length and
designated as "IDC-2".
