Choose a stainless steel flameproof head for the required probe configuration. The flanged 44x-dcP2 and threaded 24x-dcP2 versions use a small P2 head. The straight and stepped solid drilled-tube configurations offer a small P2 or large P1 head. Listed protection is up to IP65, with ExdIICT1-T6 for the dcP2 versions and ExdIIBT4-T5 or ExdIICT1-T6 for the drilled-tube versions.
| Configuration | Protective tube and mounting | Insert options | Additional selection |
|---|---|---|---|
| 44x-dcP2 | Fixed flange; TC suffix0: 16mm tube, suffix1: 20mm; RTD suffix0: 16mm, suffix1: 12mm | Single or dual; 3mm, 4mm, 5mm, 6mm or 8mm sheathed insert, or assembled insert | 105mm common flange connection dimension, sealed-face B type; other dimensions optional |
| 24x-dcP2 | Fixed thread; TC suffix0: 16mm tube, suffix1: 20mm; RTD suffix0: 16mm, suffix1: 12mm | M27x2; alternatives M33x2, NPT1/2, NPT3/4 or NPT1 | |
| Stepped drilled tube | Solid drilled stepped profile; material specified to suit duty; thread or flange | Single or dual sheathed insert; 3mm, 4mm, 5mm, 6mm or 8mm | M27x2, M33x2, NPT1/2, NPT3/4 or NPT1; ordinary or smart integral transmitter optional |
| Straight drilled tube | Solid drilled tube; 12mm, 16mm or 20mm; material specified to suit duty; thread or flange | M27x2, M33x2, NPT1/2, NPT3/4 or NPT1 |
| Mounting | Element | Single-element models | Dual-element models |
|---|---|---|---|
| Fixed flange | N | WRNK-440-dcP2; WRNK-441-dcP2 | WRNK2-440-dcP2; WRNK2-441-dcP2 |
| K | WRKK-440-dcP2; WRKK-441-dcP2 | WRKK2-440-dcP2; WRKK2-441-dcP2 | |
| E | WREK-440-dcP2; WREK-441-dcP2 | WREK2-440-dcP2; WREK2-441-dcP2 | |
| Pt100 | WZPK-440-dcP2; WZPK-441-dcP2 | WZPK2-440-dcP2; WZPK2-441-dcP2 | |
| Cu50 or Cu100 | WZCK-441-dcP2 | Not listed | |
| Fixed thread | N | WRNK-240-dcP2; WRNK-241-dcP2 | WRNK2-240-dcP2; WRNK2-241-dcP2 |
| K | WRKK-240-dcP2; WRKK-241-dcP2 | WRKK2-240-dcP2; WRKK2-241-dcP2 | |
| E | WREK-240-dcP2; WREK-241-dcP2 | WREK2-240-dcP2; WREK2-241-dcP2 | |
| Pt100 | WZPK-240-dcP2; WZPK-241-dcP2 | WZPK2-240-dcP2; WZPK2-241-dcP2 | |
| Cu50 or Cu100 | WZCK-241-dcP2 | Not listed |
| Element | Long-term range | Tube material | Response t0.5 |
|---|---|---|---|
| N or K | 0-1200°C | K1230 or GH1230 | ≤90s |
| 0-1100°C | GH30 | ||
| 0-1000°C with 8mm insert | 1Cr25Ni20 or Cr25Ti | ||
| 0-800°C | 06Cr18Ni11Ti | ||
| E | |||
| Pt100 | -200-500°C | ||
| Cu50 or Cu100 | -50-100°C |
The dcP2 thermocouple accuracy intervals are N/K Class I: 0-1000°C and Class II: 0-1200°C, and E Class I: 0-800°C and Class II: 0-900°C. Class I tolerance is ±1.5°C or ±0.4%|t|; Class II is ±2.5°C or ±0.75%|t|. Use the larger value and apply the chosen material's long-term range as well.
Available dcP2 total/insertion length pairs are 300/150mm, 350/200mm, 450/300mm, 500/350mm, 550/400mm, 600/450mm, 750/600mm, 900/750mm, 1150/1000mm, 1250/1100mm, 1400/1250mm, 1500/1350mm, 1650/1500mm, 1750/1600mm, 2000/1850mm and 2150/2000mm.
| Sensor type | Element | Class I interval | Class I tolerance | Class II interval | Class II tolerance |
|---|---|---|---|---|---|
| Nickel-chromium-silicon / nickel-silicon-magnesium | N | 0-1000°C | ±1.5°C or ±0.4%|t| | 0-1200°C | ±2.5°C or ±0.75%|t| |
| Nickel-chromium / nickel-silicon | K | ||||
| Nickel-chromium / copper-nickel | E | 0-800°C | 0-900°C |
| Sensor type | Element | Class I interval and tolerance | Class II interval and tolerance |
|---|---|---|---|
| N: Nickel-chromium-silicon / nickel-silicon-magnesium K: Nickel-chromium / nickel-silicon |
N or K | -40-1000°C; ±1.5°C or ±0.4%|t| | -40-1200°C; ±2.5°C or ±0.75%|t| |
| Nickel-chromium / copper-nickel | E | -40-800°C; ±1.5°C or ±0.4%|t| | -40-900°C; ±2.5°C or ±0.75%|t| |
| Iron / copper-nickel | J | -40-750°C; ±1.5°C or ±0.4%|t| | -40-750°C; ±2.5°C or ±0.75%|t| |
| Copper / copper-nickel | T | -40-350°C; ±0.5°C or ±0.4%|t| | -40-350°C; ±1°C or ±0.75%|t| |
| S: Platinum-10% rhodium / platinum R: Platinum-13% rhodium / platinum |
S or R | 0-1100°C: ±1°C; 1100-1600°C: ±[1+0.003(t-1100)]°C | 0-600°C: ±1.5°C; 600-1600°C: ±0.25%|t| |
| Platinum-30% rhodium / platinum-6% rhodium | B | Not specified | 600-1700°C; ±1.5°C or ±0.25%|t| |
These are element accuracy intervals. Choose the drilled protective-tube material for the intended operating temperature and medium.
| Sensor type | Element | Operating range | Tolerance |
|---|---|---|---|
| Platinum RTD | Pt100 | -200-500°C | A: ±(0.15+0.002|t|)°C; B: ±(0.30+0.005|t|)°C |
| Copper RTD | Cu50 | -50-100°C | ±(0.30+0.006|t|)°C |
| Cu100 |
