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System Scanning Thermometer
The Model 740 Programmable Thermometer has a built-in reference junction and will linearize any of 7 different thermocouple types.
Features
- Scan 9 thermocouple inputs
- Expand to 81 inputs
- Thermocouple types J, K, T, E, R, S or B
- °C, °F, or mV readings
- Store temperature profiles
- Record temperature trends
Specifications
| mV Input Resistance |
>1 GW |
| Input Current |
800 pA max |
| Max Input |
250V rms, 350V peak |
| Max Common Mode Voltage |
200V peak to earth |
| Thermocouple Loop Resistance |
1 kW max |
| Filter Settling Time |
100 ms |
| Scanning Rate |
Filter Disabled |
>20 channels/second |
| Filter Enabled |
>5 channels/second |
| Bench Reading Rate |
Filter Disabled |
8 readings/second |
| Filter Enabled |
4 readings/second |
| Logging Interval |
One of 12 selectable rates from 50ms to 1 hour |
| Scanning Interval |
One of 10 selectable rates from 500ms to 1 hour |
| Type |
Temperature
Range °C |
Temperature
Range °F |
Accuracy |
| mV |
-99.999
to 100.000 mV |
±(0.02% + 3 mV) |
| J |
-100 to 760 |
-148 to 1400 |
±0.4°C or
±0.8°F |
| K |
-100 to 1372 |
-148 to 2501 |
±0.5 °C or
±0.9°F |
| T |
-100 to 400 |
-148 to 752 |
±0.5°C or
±0.8°F |
| E |
-100 to 1000 |
-148 to 1832 |
±0.5 °C or
±0.9°F |
| R |
0 to 1780 |
32 to 3236 |
±1 °C or ±2°F |
| S |
0 to 1780 |
32 to 3236 |
±1°C or ±2°F |
| B |
350 to 1820 |
662 to 3308 |
±1 °C or ±2°F |
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