10 TEGAM WAY • GENEVA, OHIO 44041 • 440-466-6100 • FAX 440-466-6110
1-1
INSTRUMENT DESCRIPTION
SECTION 1
INSTRUMENT DESCRIPTION
1.1 Introduction
The Model R1L-BI/R1L-BIR is a digital Microohmmeter / Bond
Tester with full scale ranges from 2
mΩ to 20
Ω
. The
instrument utilizes the four-terminal, Kelvin technique to
eliminate errors caused by the resistance of the leads. The
resistance reading is displayed on a 3½ digit liquid crystal
display on the front panel. An over-range condition is indicated
as a "1" followed by three blank digits (the decimal point is also
displayed in its normal position for the range selected).
Model R1L-BIR is electronically identical to model R1L-BI, but
it has a rugged case as the enclosure rather than an open front
panel.
1.2 Performance Characteristics
This is a range-selection instrument, with a rotary 5 range
selector switch.
Range
Full
Scale
(Ω)
Resolution
(Ω)
Test
Current
Peak
(
A)
1
1.999 m
1 µ
1.4
2
19.99 m
10 µ
140 m
3
199.9 m
100 µ
14 m
4
1.999
1 m
1.4 m
5
19.99
10 m
140 µ
Reactive loads not to exceed 2mH or 100µF with a minimum of
5µΩ per µH of series resistance.
See figure 1 below.
Table 1: Specifications
