ABB TTF200 - Sensor Terminal and Connection Cable; Electrical Data for Inputs and Outputs

22 TTF200 FIELD-MOUNT TEMPERATURE TRANSMITTER | OI/TTF200-EN REV. B
… 7 Electrical connections
Terminal for sensor connection cable
DANGER
Danger of explosion if the device is operated with the
transmitter housing or terminal box open!
While using the device in potentially explosive atmospheres
before opening the transmitter housing or the terminal box,
note the following points:
• A valid fire permit must be present.
• Make sure that no flammable or hazardous atmospheres
are present.
A10271
~140 (5.51)
50 (1.97)
max. 12 (0.47)Ø
8 (0.31)
1
2
3
4
1 Terminal compartment
2 Cable entry
3 Cable gland
4 Sensor connection cable
Figure 21: Connection to the transmitter, dimensions in mm (in.)
1. Tighten the lock screw under the housing cover.
2. Unscrew the housing cover.
3. If available, pull out the LCD indicator carefully
4. Strip the sensor connection cable as shown and attach wire
end sleeves.
A line length of 190 mm should be ensured between the cable
gland entry and the terminals. 140 mm should be stripped
from the cable jacket along this length.
5. Guide the sensor connection cable through the cable glands
and into the housing. Then tighten the cable glands.
6. Connect the wires as per the connection diagram.
7. If there is one, carefully insert the LCD indicator in the
previous / required position.
8. Screw the housing cover back on.
9. Loosen the lock screw until the housing cover is firmly in
place.
Electrical data for inputs and outputs
Input - resistance thermometer / resistances
Resistance thermometer
• Pt100 in accordance with IEC 60751, JIS C1604, MIL-T-24388
• Ni in accordance with DIN 43760
• Cu in accordance with recommendation OIML R 84
Resistance measurement
• 0 to 500 Ω
• 0 to 5000 Ω
Sensor connection type
Two-, three-, four-wire circuit
Connection lead
• Maximum sensor line resistance
per line 50 Ω 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 thermometer)
Sensor wire break
• Measuring range: 0 to 500 Ω > 0.6 to 10 kΩ
• Measuring range: 0 to 5 Ω > 5.3 to 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 break
• Linear resistance measurement:
Sensor wire break