ELHART TRE.C24 series RTDs are designed for measuring the temperature of liquid, granular, and gaseous media in various technological equipment: refrigeration equipment, jacketed tanks, ice water generators, boilers, etc.
TRE.C24 are manufactured with Pt100 and Pt1000 platinum sensing elements with accuracy classes A and B according to GOST 6651. The protective sheath is made of AISI 321 stainless steel (12X18H10T). The diameter of the protective sheath is 6 mm. The immersion length depends on the ordering code and ranges from 32 to 160 mm.
Process connection is provided by a fixed fitting with G1/4", M16×1.5, or M8×1 thread. The sensors can be connected to the process directly or via a thermowell. The sensor cable has a silicone jacket. The ingress protection rating is IP65. For easy connection, TRE.C24 features colored wire leads and a separate lead for the protective shield.
| Parameter | Value |
|---|---|
| Sensor type | Pt100 (α=0.00385 °C -1) Pt1000 (α=0.00385 °C -1) (specified upon ordering) |
| Temperature measurement range | -30…+180 °C (Class A) -40…+180 °C (Class B) |
| Accuracy class | Class А - ±(0.15+0.002·|t|) °C Class В - ±(0.30+0.005·|t|) °C where |t| is the absolute temperature value |
| Thermal response time (63.2%) * | max 30 s |
| Electrical insulation resistance at 25 ±10 °С * | min 100 MΩ |
| Measuring current * | max 1 mA (Pt100) max 0.3 mA (Pt1000) |
| Ingress Protection ** | IP65 |
| Process connection | male thread M8×1, M16×1.5, or G1/4” (specified upon ordering) |
| Minimum immersion length | 32 mm |
| Sheath material | AISI 321 stainless steel |
| Conductors | copper |
| Conductor insulation | fluoroplastic |
| Outer shield | tinned copper |
| Conductor cross-section | 3(4)х0.12 mm2 |
| Relative air humidity | max 95% (without condensation) |
| Mean time between failures (MTBF) | min 40,000 hours |
| Service life | 10 years |
* — according to GOST 6651.
** — according to GOST 14254.
| Ordering code | Overall dimensions, mm | ||
|---|---|---|---|
| A | S | Immersion length L | |
| TRE.C24…M8… | M8x1 | 13 | from 32 to 160 |
| TRE.C24…M16… | M16x1.5 | 22 | |
| TRE.C24…G14… | G1/4 | 19 | |
