Digital Meter
Thermocouple, Resistance Thermometer
MODEL 3126
- ■ DIN size 24×48 mm Thermometer.
- ■ Available with thermocouple input, Resistance thermometer.
- ■ Available with analog output too.
Standard Specifications
Model Designation
| 3126 | - | □ | - | □ | - | □ |
| ① | ② | ③ |
①Measuring Input
Thermocouple (T/C)
| Code | Type of T/C | Measuring Range | Display Range | Accuracy *1 |
|---|---|---|---|---|
| 01 | R | 100 to 1700°C | -50 to 1750°C | ±(0.5% of rdg + 1°C) |
| 02 | K | -100 to 1300°C | -100 to 1350°C | |
| 04 | J | 0 to 1200°C | -50 to 1250°C | |
| 05 | T | -100 to 400°C | －150 to 420°C |
- *1 Accuracy:
- Defined at 23 ± 5°C, 45 to 75% RH.
- Temperature coefficient:
- ±300 ppm/°C (Temp. range: 0 to 50°C)
Calibrated by standard thermal power mV input in compliance with JIS C 1602. - Standard contact compensation:
- Defined at ±2°C (Temp. range: 0 to 50°C)
Resistance Thermometer
| Code | Type of sensor | Measuring Range | Display Range | Accuracy *2 |
|---|---|---|---|---|
| 12 | Pt100Ω | -199.9 to 199.9°C | -199.9 to 199.9°C | ±(0.2% of rdg + 0.3°C) |
| 11 | -199 to 600°C | -199 to 650°C | ±(0.4% of rdg + 1°C) |
- *2 Accuracyy:
- Defined at 23 ± 5°C, 45 to 75% RH.
- Temperature coefficient:
- ±200 ppm/°C (Temp. range: 0 to 50°C)
Calibrated by resistance of standard resistive elements in compliance with JIS C 1604.
②Display Color
| Code | Description |
|---|---|
| Blank | Red LED |
| Ｇ | Green LED |
③Option
| Code | Input |
|---|---|
| Blank | null |
| A01 | analog output |
General Specifications
| Display | Red or green LED (character height 10 mm) with zero-suppress function. |
|---|---|
| Over-range indication | When exceeding the display range, flashes with minimum or maximum value. |
| Open circuit of input | Thermocouple: flashing with minimum value Resistance thermometer: flashing with maximum value |
| Resolution | Thermocouple: 1°C Resistance thermometer: 1°C or 0.1°C |
| External resistance | Thermocouple: Less than 500 Ω Resistance thermometer: Less than 5 Ω/lead wire |
| Overload | DC ±3.3 V |
| Sampling rate | 2.5 times/s |
| Input configuration | Single ended, floating input |
| A/D conversion | ⊿－Σ conversion system |
| Noise rejection | Normal mode （NMR) More than 50dB |
| Hold function | Holds measured data and analog output (option). (Not isolated from the input) |
| °F indication | °F ＝ °C × 9 / 5 + 32.0 |
| Withstand voltage | Between input terminals and external case: AC 500 V each for 1min. Between power supply terminals and external case: AC 500 V each for 1min. Between power supply terminals and input terminals: AC 500 V each for 1min. |
| Insulation resistance | DC 500 V More than 100 MΩ |
| Power supply | DC 12 to 24 V |
| Tolerance of source voltage | DC 9 to 32 V |
| Power consumption | DC 12 V … 60 mA DC 24 V … 40 mA |
| Operating temperature | 0 to 50°C |
| Storage temperature | -20 to 70°C |
| Weight | Approx. 55 g |
| Mounting Method | Snap-in type |
