ABB TTR200, Operating Instruction

TTR200

 | OI/TTR200-EN Rev. B  13

7.2.3

Electrical data for inputs and outputs 

Input - resistance thermometer / resistances 

Resistance thermometer 
—  Pt100 according to IEC 60751, JIS C1604, MIL-T-24388 
—  Ni according to DIN 43760 
—  Cu according to recommendation OIML R 84 
 
Resistance measurement 
—  0 … 500 Ω 
—  0 … 5000 Ω 
 
Sensor connection type 
—  Two-, Three-, Four wire-circuits 
 
Connection lead 
—  Maximum sensor line resistance: 
 

of 50 Ω per line in accordance with NE 89 

— Three-wire 

circuit: 

Symmetrical sensor line resistances 

— Two-wire 

circuit: 

Compensation up to 100 Ω total lead resistance 

 
Measurement current < 300 μA 
 
Sensor short circuit < 5 Ω (for resistance thermometers) 
 
Sensor wire break 
—  Measuring range: 0 ... 500 Ω > 0.6 ... 10 kΩ 
—  Measuring range: 0 ... 5 kΩ > 5.3 ... 10 kΩ 
 
Corrosion detection in accordance with NE 89 
—  Three-wire resistance measurement > 50 Ω 
—  Four-wire resistance measurement > 50 Ω 
 
Sensor error signaling 
—  Resistance thermometer: Sensor short circuit and sensor 

wire breakage 

—  Linear resistance measurement: Sensor wire break 
 

Input - 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 ... 1100 mV 
 
Supply line 
—  Maximum sensor line resistance  
 

1.5 kΩ per wire, 3 kΩ in total 

 
Sensor wire break monitoring in accordance with NE 89 
—  Pulsed with 1 μA outside measurement interval 
—  Thermocouple measurement 5.3 ... 10 kΩ  
—  Voltage measurement 5.3 ... 10 kΩ 
 
Input resistance > 10 MΩ 
 
Internal reference junction Pt1000, IEC 60751 Cl. B 
(no additional jumpers necessary) 
 
Sensor error signaling 
—  Thermocouple: wire break 
—  Linear voltage measurement: wire break 
 

Output 

Transmission behavior 
— Temperature 

linear 

— Resistance 

linear 

— Voltage 

linear 

 
Output signal 
—  Configurable 4 ... 20 mA (standard) 
—  Configurable 20 ... 4 mA 
 

(Dynamic range: 3.8 ... 20.5 mA in accordance with NE 43) 

 
Simulation mode 3.5 ... 23.6 mA 
 
Induced current consumption < 3.5 mA 
 
Maximum output current 23.6 mA 
 
Configurable error current signal 
—  Overrange 22 mA (20.0 … 23.6 mA) 
—  Underrange 3.6 mA (3.5 … 4.0 mA)