10 TEGAM WAY • GENEVA, OHIO 44041 • 440-466-6100 • FAX 440-466-6110
•
4-2
MAINTENANCE
A standard digital voltmeter (accuracy of 0.01% of reading,
or better) and an oscilloscope (bandwidth of 50 MHz, or
more). Suggested voltmeter is a Keithley Model 2000;
suggested Tektronix oscilloscope Model TDS 360.
Variable 4-7 V DC Power Supply, at 1.0 A min.
Thin Nylon Battery Terminal Insulating Strip
4.4
Performance Verification
1.
Connect the four binding posts to the precision decade
resistor box. For 4-wire hook-up, use banana plugs to
connect the +I lead to the top of the "High" binding post
and -I to the top of the "Low" binding post. Use spade
lugs to connect the +E lead to the bottom of the "High"
binding post and -E to the bottom of the "Low" binding
post.
2.
The Model R1L-D1 should default to 4-wire measurement
and auto-ranging when turned on. For measurements of
all five ranges listed below, check readings via auto-
ranging, and then repeat after stepping through the
manual ranges, to ensure proper operation with either
Auto-range or manual range selection.
3.
Set the resistor box to 1060 Ω and operate the R1L-D1.
Check that the R1L-D1 reads between the resistor box
1060 Ω setting’s actual value ± 0.54 Ω in Auto-Range
(default condition when power is turned on). Then step
through the ranges to the 2 k manual range and check
that the R1L-D1 reads between the resistor box 1060 Ω
setting’s actual value ± 0.54 Ω.
4.
Set the resistor box to 100 Ω and operate the R1L-D1.
Check that the R1L-D1 reads between the resistor box
100 Ω setting’s actual value ± 0.051 Ω in Auto-range.
Then step through the ranges to the 200 Ω manual range
and check that the R1L-D1 reads between the resistor
box 100 Ω setting’s actual value ± 0.051 Ω.
