The BCS #7410 Digital Pyrometer is a good quality & low cost temperature measurement instrument. The maximum temperature readable with this unit is 2372°F, so it is useful for alloys such as lead, zinc, zamack, aluminum, brass, bronze and copper.
The meter actually has two inputs for type K thermocouples. This isn't particularily useful for typical foundry use, but is used to measure the difference in temperatures in other applications. For foundry use you will only need to use one of them.
This pyrometer is just what you need for non-ferrous casting. Stop guessing at the temperature of the melt, and gain control over your pouring temperature! Looks can be deceiving for molten metal temperatures. Often the temperature is much lower or higher than optimum. Once you know what the temperature of your melt is, you will wonder how you ever managed to pour with out knowing! Professionals keep a log of every pour, including the temperature, the alloy, the details of the part, and the results obtained. With this information you will be able to confidently pour parts with better results.
The #7410 meter reads in °F or °C. There is a "MAX, MIN, AVG" button that enables the reading to be held after removing the probe from the source of the heat. The unit also comes with two small 6" general purpose hand held probe (not shown). These probes are for low temperature use only, and not suitable for molten metal measurements. The meter uses a SMP style connector. Powered by a 9V battery, included.
BCS offers 2 styles of Thermocouple Probes, Immersion Probes and Chamber Probes. Immersion Probes are for measuring the temperature of molten metal. Chamber Probes are used for measuring the internal chamber temperature of a furnace or heat treat oven.
The #7402 Probe is an Immersion Type K Themocouple Probe, 18" long overall. It has a molded handle and coiled extension cable. It is bent at about a 120 degree angle, the measuring tip end being about 13" long. The coiled cord comfortably extends to about 32". The thermocouple tip is ungrounded. The probe comes with a #7413 Sheath.
The #7404 probe is an Immersion Type K Themocouple Probe, same as the #7402, but is 36" long overall. It's bent at a 90° angle, with the measuring tip end being about 15" long. The probe comes with a #7413 Sheath.
These probes will settle to the melt temperature in about 10 seconds. After taking the reading I use a LARGE bundle of very wet newspaper to wipe the tip clean of molten metal. This prevents blobs from building up on the tip. Be sure to use gloves and protective apparel whenever you use this device. A coating of ITC-213 will also help protect the probe from metal accumulation.
Chamber probes come in 12" (#7301) or 18" (#7302) lengths. They do not have handles or cords, and must be used with an extension cable (#7422) to connect the probe to the pyrometer. They do not have sheaths because they are meant to measure the chamber temperature and do not contact molten metal.
These probes will settle to the chamber temperature in 3 - 5 seconds.
WARNING: Always be careful not to contact electric heating elements with any probe as an electric shock can occur. Use heavy gloves to prevent burns or electrical shock. The probe tip can stay very hot for many minutes after use. Be sure to avoid contact with the probe, and place it on a temperature safe surface.
Protect your Immersion probe from the effects of molten metal and fluxes. Probes can be damaged after only a few uses in some melting conditions. The #7413 sheath is made of 304 stainless steel and slips over your probe. It is held in place with a setscrew.
Both the 18" and 36" Immersion probes are now shipped with a sheath at no extra charge. It just doesn't make sense not to have one. Chamber Probes don't need a sheath.
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(In the lower 48 states)
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2372°F Digital Pyrometer - Only | |
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Digital Pyrometer, 18" Type K Bent Immersion Probe and Sheath | |
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Digital Pyrometer, 36" Type K Bent Immersion Probe and Sheath | |
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Replacement Immersion Thermocouple Probe, 2440°F Max Temperature, Type K, 18" long, with Sheath. | |
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Replacement Immersion Thermocouple Probe, 2440°F Max Temperature, Type K, 36" long with Sheath. | |
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Replacement Pyrometer Sheath for 18" Probe | |
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Replacement Pyrometer Sheath for 36" Probe | |
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Digital Pyrometer, 12" Type K Chamber Probe & 10' Extension Cable | |
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Digital Pyrometer, 18" Type K Chamber Probe & 10' Extension Cable | |
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Replacement 12" Type K Chamber Probe | |
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Replacement 18" Type K Chamber Probe | |
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Replacement 10' Extension Cable | |
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Revised: 7-1-10
