Heat trace RTD sensor built for precise temperature measurement and dependable performance in heat tracing systems.
The HT2 Heat Trace RTD is a surface mount temperature sensor designed for use in hazardous locations. The HT2 is a customizable product that is model number configured and made to order.
The HT2 consists of an RTD sensor probe designed to be attached to the outer diameter of a pipe using common attachment bands or strapping. The connection head (enclosure) is provided with a terminal block or internal transmitter.
| Brand |
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| HT2 | – | T1 | – | T2 | – | T3 | – | T4 |
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| T1 | Connection Head | Color | Material | Conduit Connection | Terminal Block | Type Rating |
|---|---|---|---|---|---|---|
| 2ALT | Standard style | Blue | Aluminum epoxy coated | 1x 3/4″ NPT | Bakelite | Type 4X |
| 1ALT | Standard style | Blue | Aluminum epoxy coated | 1x 1/2″ NPT | Bakelite | Type 4X |
| 2ALTC | Standard style | Blue | Aluminum epoxy coated | 1x 3/4″ NPT | Ceramic | Type 4X |
| 2AL | Standard style | Grey | Aluminum | 1x 3/4″ NPT | Bakelite | Type 4 |
| 2SS | Standard style | Steel | Stainless steel | 1x 3/4″ NPT | Bakelite | Type 4X |
| Note | Refer to HT2 – Heat Trace RTD Sensor Specifications (PDF) for additional options, details and other styles | |||||
| T2 | Sensor Type |
|---|---|
| 3 | 3-wire RTD 100Ω Pt. 385 Class A (Class A tolerance ≤±300°C(+572°F), Class B tolerance typically applies >+300°C(+572°F)) |
| 4 | 4-wire RTD 100Ω Pt. 385 Class A (Class A tolerance ≤±300°C(+572°F), Class B tolerance typically applies >+300°C(+572°F)) |
| Other | Consult factory |
| T3 | Sensor Height “X” Length (inches)³ | CSA Process Temperature Rating³ |
|---|---|---|
| 4 | 4 inches | -50°C to +230°C (-58°F to +446°F), T3C |
| 6 | 6 inches | -50°C to +230°C (-58°F to +446°F), T3C |
| 8 | 8 inches | -50°C to +450°C (-58°F to +842°F), T2 |
| “inches” | Specify custom height in inches | Consult factory |
| T4 | Sensor Probe Construction | Notes |
|---|---|---|
| LT | Low temperature (-50 to +260°C) (-58°F to +500°F) | Temperature values are for the temperature sensor probe construction only. The CSA process and ambient temperature assembly ratings are dependant on connection head (T1) and sensor height “X” length (T3)³. |
| HT | High temperature (-50 to +482°C) (-58°F to +899°F) | |
| ET | Extreme temperature (-50 to +850°C) (-58°F to +1562°F) | |
| VT | Vibration construction (-50 to +482°C) (-58°F to +899°F) | |
| CT | Cryogenic temperature (-200 to +260°C) (-328°F to +500°F) |
| Sensor Probe Sheath and Clamp material |
|---|
| Standard default material is 316/316L stainless steel. Other alloys are available on request. |
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