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WIKA TG53
WIKA TG53 – Đồng hồ đo nhiệt độ tiêu chuẩn ASME B40.200 (Bimetal thermometer) hãng WIKA/Germany
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Applications - General process instrumentation in the chemical and petrochemical industries, oil and gas industries, power generation and water/wastewater industries
- Temperature measurement in harsh and aggressive environments
- Suitable for applications with high vibrations
Special features - Robust, hermetically sealed case
- Accuracy: ±1 % of full scale value ASME B40.200 (grade A)
- External reset for reference temperature adjustment
- Dished dial (anti-parallax) for ease of reading
- Adjustable stem and dial version enables optimal process connection
Description The model TG53 bimetal thermometer has been developed and manufactured in accordance with the ASME B40.200 standard. The thermometer provides high quality and performance, and is an ideal choice in the process industries. The robust, hermetically sealed case with standard IP66 (NEMA 4X) ingress protection enables use within harsh external conditions. Specifically designed for use in the chemical and petrochemical, oil and gas, power engineering and shipbuilding industries, the TG53 satisfies the rigorous requirements for resistance to aggressive media. As an available option, the case, stem and process connection can be made from 316 stainless steel.
The TG53 offers the widest variety of dampening options in the industry, allowing it to operate in situations where severe vibration conditions exist. These options include case filling and a dampened packed bearing to minimize pointer oscillation. An easily accessible reset screw on the back of the case allows quick, limited reference temperature adjustment, reducing maintenance and re-calibration costs. The TG53 is also available in an assortment of stem lengths (insertion length L1) to optimize its application-specific fit and performance.
WIKA TG53
Measuring element |
Bimetal coil |
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Nominal size in inch [mm] |
■ 3″ [80 mm]■ 4″ [100 mm]■ 5″ [127 mm]■ 6″ [160 mm] |
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Connection location |
■ Back mount (axial)■ Lower mount (radial)■ Back mount, adjustable stem and dial |
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Unit (scale range) |
■ °F■ °COption:■ °F/°C (dual scale)■ °C/°F (dual scale) |
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Process connection |
■ Plain, without thread
■ G ½ B ■ ½ NPT ■ G ½ female ■ ½ NPT female ■ M20 x 1.5 ■ M24 x 1.5 female others on request |
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Accuracy class |
Grade A per ASME B40.200 | ||
| Stem diameter | ■ ¼” [6.35 mm]
■ ⅜” [9.53 mm] |
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| Insertion length L1 | 2.5″ … 39″ [63 … 1,000 mm]
Other lengths > 39″ [1,000 mm] on request Minimum/maximum length is dependent on the measuring range and diameter |
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| Window | Instrument glass
Option: ■ Laminated safety glass ■ Polycarbonate (shatterproof) |
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| Damping | Without
Option: ■ With silicone oil case filling, up to max. 482 °F [250 °C] (at the probe) ■ Dampened packed bearing (with inert gel) |
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| Versions (option) | ■ Oil and grease-free version
■ Silicone-oil-free version |
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| Materials | |||
| Case, ring | Stainless steel 304 (option: stainless steel 316L) | ||
| Stem, process connection (wetted) | Stainless steel 304 (option: stainless steel 316L) | ||
| Elbow behind the case | Stainless steel 304 (option: stainless steel 316L), only with lower mount | ||
| Dial | Aluminium, white, black lettering | ||
| Pointer | Aluminium, black, adjustable pointer | ||
| Joint | Stainless steel 304 (option: stainless steel 316L) | ||
| Ingress protection IEC/EN 60529 | IP66 (NEMA 4X)
Option: ■ IP67 ■ IP68 (continuous immersion up to 5 m) |
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| Permissible ambient temperature at case | unfilled | filled | Option |
| Instrument glass | -40 … +212 °F 1) [-40 … +100 °C] | – | -60 … +160 °F [-50 … +70 °C] |
| Laminated and polycarbonate window | -40 … +160 °F 1) [-40 … +70 °C] | -40 … +160 °F [-40 … +70 °C] | -60 … +160 °F [-50 … +70 °C] |
| 1) For ambient temperatures < 32 °F [0 °C] the measuring system and the window may fog up and possibly ice over. | |||
Temperature limits for storage and transport |
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| Without liquid damping | -60 … +160 °F [-50 … +70 °C] | ||
| With liquid damping | -50 … +160 °F [-40 … +70 °C] | ||
| Option: Dampened pointer | -60 … +160 °F [-50 … +70 °C] | ||
| Overtemperature stability 2) | |||
| Scale range -94 … +250 °F [-70 … +120 °C] | 100 % overload safety of scale range | ||
| Scale range 250 … 550 °F [120 … 280 °C] | 50 % overload safety of scale range | ||
| Scale range 550 … 750 °F [280 … 400 °C] | max. 800 °F [430 °C] of scale range | ||
| Scale range 750 … 1,000 °F [400 … 600 °C] | max. full scale value | ||
| 2) Overtemperature stability only in non-Ex area | |||
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