| Item |
Specification |
| Type |
EH-PT4 |
| Temperature-sensing element |
Platinum resistance temperature detector
Pt 100 (JIS C 1604-1989) / Pt 1000 |
| Temperature conversion data |
Signed 15 bits |
| Accuracy *1 |
-20°C to 40°C (Pt 100) |
±0.1°C @ 25°C ±0.5°C (0 to 55°C) |
| -50°C to 400°C (Pt 100) |
±0.6°C @ 25°C ±3°C (0 to 55°C) |
| -50°C to 400°C (Pt 1000) |
±0.8°C @ 25°C ±6°C (0 to 55°C) |
| Temperature measuring range |
-20 to +40°C/ -50 to +400°C (2mA constant current system) |
| Number of input points |
4 |
| Conversion time |
Approximately 0.5 second per four inputs |
| Insulation |
Between input and |
Photocoupler insulation |
| internal circuit |
| Between inputs |
No insulation |
| Weight |
Approximately 0.15 kg (0.33lb.) |
| External Connection |
Removal terminal block (M3) |
| Unused terminal processing |
Unused terminals (for current, voltage and ground) should be shorted at the terminal block (Temperature conversion data for one of the four values is H7FFF) |
| External wiring register |
The maximum total wiring resistance from current terminal to ground terminal is 2 Ω. |
| External wiring |
3 cores shielded cable |
| Additional function |
Linearization |
| Resolution |
-20°C to 40°C (Pt100) |
0.0024°C |
| -50°C to 400°C (Pt100) |
0.024°C |
| -50°C to 400°C (Pt1000) |
0.024°C |
| Internal current consumption (5V DC) |
Approximatly 160mA |
| Externally supplied power |
24V DC±10%, Maximum current consumption is 70mA |
