2
HRRS Series
2
Specifications
Chapter 2
SPECIFICATIONS
For convenience to the user, the pertinent specifications are given in an
OPERATING GUIDE
affixed to the
case of the instrument. Figure 2.1 shows a typical example.
2.1 Specifications
Resistance
per step
Total
decade
resistance
Accuracy
18-28°C; <50% RH
Max voltage
per step
(V)
Maximum
voltage
(V)
Temperature
coefficient
(±ppm/°C)
Voltage
coefficient
(±ppm/V)
Stability
(±ppm/yr)
Resistor
type
Q
B
F
10
Ω
100
Ω
±(0.01%+2 m
Ω
)
±(0.03%+2 m
Ω
)
±(0.10%+2 m
Ω
)
2.5
25
15
-
10
Wirewound,
non-inductive
100
Ω
1 k
Ω
±(0.01%+2 m
Ω
±(0.03%+2 m
Ω
)
±(0.10%+2 m
Ω
)
8
80
5
-
10
1 k
Ω
10 k
Ω
±0.01%
±0.03%
±0.10%
23
230
5
-
10
10 k
Ω
100 k
Ω
±0.01%
±0.03%
±0.10%
70
700
5
-
10
100 k
Ω
1 M
Ω
±0.01%
±0.03%
±0.10%
230
2000
5
-
10
1 M
Ω
10 M
Ω
±0.01%
±0.03%
±0.10%
1000**
2000
15
<1
25
Metal-oxide
film
10 M
Ω
100 M
Ω
±0.03%
±0.10%
±1%
1000**
2000
15
<1
50
100 M
Ω
1 G
Ω
±0.10%
±0.20%
±1%
1000**
2000
15
1
100
1 G
Ω
10 G
Ω
±0.20%
±0.50%
±1%
1000**
2000
50
1
500
High-voltage
film
10 G
Ω
100 G
Ω
±0.50%
±1%
±1%
1000**
2000
50
2
500
100 G
Ω
1 T
Ω
See HRRS-5kV Series if these values are required.
1 T
Ω
10 T
Ω
**To apply up to 2000 V for the first step, use the preceding decade at its “10” position. e.g. to obtain 1 MΩ with 2000 V max, set 100 kΩ switch to position “10.”
Zero resistance
<3 mΩ per decade
Environmental conditions
Operating Conditions:
10°C to 40°C; <50% RH
Storage conditions:
-40°C to 70°C
Terminals
Two five-way binding posts on 2 special, low-
leakage, Kel-F insulating sockets, and one metal
ground binding post electrically connected to the
case
Max voltage to case
2000 V peak
Mechanical:
Model
Dimensions
Weight
3 Decade
31.2 cm W x 8.9 cm H x 10.2 cm D
(12.3" x 3.5" x 4.0")
1.4 kg
(3.0 lb)
4-5 Decade
37.5 cm W x 8.9 cm H x 10.2 cm D
(14.8" x 3.5" x 4.0")
1.6 kg
(4.0 lb)
6-7 Decade
43.9 cm W x 8.9 cm H x 10.2 cm D
(17.3" x 3.5" x 4.0")
2 kg
(4.5 lb)
8-9 Decade
48.3 cm W x 17.8 cm H x 19.7 cm D
(19.0" x 7.0" x 7.8")
5.1 kg
(11 lb)
