Datasheet

DC Resistance Meters
2840 Series
4
www.bkprecision.com
Model 2841
LPR OFF
Resistance
range
3
Current Resolution
Accuracy
(rdg% + FS%)
Maximum Open
Terminal Voltage
20 mΩ
1 A
0.1 µΩ 0.25+0.001
5 V
200 mΩ
2
1 µΩ 0.25+0.001
200 mΩ
2
(selectable)
100 mA
1 µΩ 0.35+0.001
2.6 V
2 Ω 100 mA 10 µΩ 0.035+0.001
20 Ω
10 mA
100 µΩ 0.025+0.001
200 Ω 1 mΩ 0.01+0.001
2 kΩ 1 mA 10 mΩ 0.01+0.001
20 kΩ
100 µA
100 mΩ 0.01+0.005
100 kΩ 1 Ω 0.01+0.003
13 V
1 MΩ 10 µA 10 Ω 0.02+0.001
10 MΩ 1 µA 100 Ω 0.1+0.006
100 MΩ 100 nA 1 kΩ 0.8+0.060
LPR ON
2 Ω 10 mA 100 µΩ
0.05+0.001 60 mV
20 Ω 1 mA 1 mΩ
200 Ω 100 µA 10 mΩ
2 kΩ 10 µA 100 mΩ
Model 2840
LPR OFF
Resistance
Range
Current Resolution
Accuracy
(rdg% + digits)
1
Maximum Open
Terminal Voltage
20 mΩ 1 A 1 µΩ 0.1 + 3
0.7 V200 mΩ
100 mA
10 µΩ
0.1 + 2
2 Ω 100 µΩ
20 Ω 10 mA 1 mΩ
3 V
200 Ω 1 mA 10 mΩ
2 kΩ
100 µA
100 mΩ
20 kΩ 1 Ω
LPR ON
2 Ω 10 mA 100 µΩ
0.2 + 5 40 mV
20 Ω 1 mA 1 mΩ
200 Ω 100 µA 10 mΩ
2 kΩ 10 µA 100 mΩ
Accuracy = (measurement value x rdg) + (least significant digit)
1
- Test speed set to Slow2
Specifications
Specifications are valid after temperature stabilization period of 15 minutes over an
ambient temperature range of 23 °C ± 5 °C.
Resistance Measurements
Pt500
Temperature range Resolution Accuracy in six months Accuracy in one year
-10.0 °C to 39.9 °C 0.1 °C ±0.30%rdg ± 0.5 °C ±0.45%rdg ± 0.8 °C
40.0 °C to 99.9 °C 0.1 °C ±0.30%rdg ± 1.0 °C ±0.45%rdg ± 1.5 °C
Analog Input
Input voltage range Temperature range display Resolution Accuracy
0 to 2 V -99.9 °C to 999.9 °C 1 mV
±1% T
R
± 3 mV
Accuracy = (measurement value x rdg%) + (resistance range x FS%)
2
- Current for the 200 mΩ range can be selected in the measurement setup menu.
3
- Measurement display is 5 1/2 digits for ranges 20 mΩ to 20 kΩ, 5 digits for ranges 100 kΩ
to 100 MΩ
Accuracy = 1% x (T
R
– T
0V
) + 0.3% x (T
1V
- T
0V
)
T
1V
: The temperature measured under input voltage of 1 V.
T
0V
: The temperature measured under input voltage of 0 V.
T
R
: The current measured temperature.
Temperature Measurements (Model 2841 only)
Accuracy = 0.3% x measured value ± 0.5 ºC