dataTaker DT80 - Part Q - Reference; DT80 Series Specifications; Analog Inputs

UM-0085-B09 DT80 Range User Manual Page 379
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Part Q – Reference
DT80 Series Specifications
Analog Inputs
Max Number of Inputs
Supported Measurement Types
• Voltage
• Current and 4-20mA current loop (internal or external shunt)
• Resistance (2, 3, 4 wire; max 1MΩ)
• Ratiometric resistance e.g. strain gauges (1/4, 1/2 or full bridges; current or voltage excited)
• Thermocouples: types B, C, D, E, G, J, K, N, R, S, T (internal or external reference junction sensor)
• RTDs (Pt, Ni, Cu)
• Thermistors (YS400xx series; generic thermistor scaling)
• IC temperature sensors (AD590 series, LM35 series, LM135 series)
• Frequency
• Vibrating wire strain gauges (DT80G/85G GeoLogger only)
• Carlson meters
• Logic state
Input Ranges
Input Type
Range
Resolution
DC Voltage
±30 mV
0.00025 mV
±300 mV
0.0025 mV
±3,000 mV
0.025 mV
±30 V
0.00025 V
±50 V
0.0004 V
DC Current
Internal Shunts (100Ω)
±0.3 mA
0.0000025 mA
±3 mA
0.000025 mA
±30 mA
0.00025 mA
External Shunts
depends on shunt
depends on shunt
Resistance
10 Ω
0.00015 Ω
100 Ω
0.0015 Ω
1,000 Ω
0.015 Ω
10,000 Ω
0.15 Ω
1,000,000 Ω
15 Ω
Frequency
0.1 to 450,000 Hz
0.0002%
4-20mA Current Loop
0 to 100 %
0.01%
Temperature
depends on sensor
depends on sensor
Strain Gauges and Bridges
±10
4
ppm
1 ppm
±10
5
ppm
10 ppm
±10
6
ppm
100 ppm
Analog State
0 or 1
1
Voltage Out
10 to10,000 mV
0.15mV
Current Out
0 to 20 mA
0.0004 mA
Input Type DT81 DT82 DT80 DT85
DT80 +
5 x CEM20
DT85 +
16 x CEM20
3-wire & 4-wire independent inputs
1
2
5
16
100
320
2-wire independent inputs
2
4
10
32
200
640
2-wire shared terminal inputs 3 6 15 48 300 960