Specifications; Input; Resistance Thermometers / Resistors; Thermocouples / Voltages - ABB TTH300 Operating Instruction

10 Specifications

Change from one to two columns

10.1 Input

10.1.1 Resistance thermometers / Resistors

Resistance thermometers
Pt100 in accordance with IEC 60751, JIS C1604-81,
MIL-T-24388,
Ni in accordance with DIN 43760, Cu
Resistance measurement
0 ... 500 Ω
0 ... 5000 Ω
Sensor connection type
Two-, three-, four-wire circuit
Connecting cable
Maximum sensor line resistance (R
according to NE 89 (January 2009)
Three-wire circuit:
symmetrical sensor line resistances
Two-wire circuit:
compensation up to 100 Ω total line resistance
Measurement current
< 300 µA
Sensor short circuit
< 5 Ω (for resistance thermometer)
Sensor wire break
Measuring range: 0 ... 500 Ω
Measuring range: 0 ... 5 kΩ
Corrosion detection in accordance with NE 89
Three-wire resistance measurement
Four-wire resistance measurement
Sensor error signaling
Resistance thermometers:
Linear resistance measurement:
OI/TTH300-EN
) for each line 50 Ω
W
> 0.6 ... 10 kΩ
> 5.3 ... 10 kΩ
> 50 Ω
> 50 Ω
Short circuit and wire break
Wire break
TTH300

10.1.2 Thermocouples / Voltages

Types
B, E, J, K, N, R, S, T in accordance with IEC 60584
U, L in accordance with DIN 43710
C, D in accordance with ASTM E-988
Voltages
-125 ... 125 mV
-125 ... 1,100 mV
Connecting cable
Maximum sensor line resistance (R
total: 3 kΩ
Sensor wire-break monitoring in accordance with NE 89
Pulsed with 1 µA outside measurement interval
Thermocouple measurement
Voltage measurement
Input resistance
> 10 MΩ
Internal reference point
Pt1000, IEC 60751 Cl. B
(no additional jumpers necessary)
Sensor error signaling
Thermocouple:
Linear voltage measurement:

10.1.3 Functionality

Freestyle characteristics and 32-point sampling table
Resistance measurement up to maximum 5 kΩ
Voltages up to maximum 1.1 V
Sensor error adjustment
Via Callendar van Dusen coefficients
Via table of 32 sampling points
Via single-point adjustment (offset adjustment)
Via two-point adjustment
Input functionality
1 sensor
2 sensors:
mean measurement,
differential measurement,
sensor redundancy,
sensor drift monitoring
Specifications
) for each line: 1.5 kΩ,
W
5.3 ... 10 kΩ
5.3 ... 10 kΩ
Wire break
Wire break
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