Answer: A GB4 or GB5 has an internal power supply for its Sending Units. This power supply protects itself from external short circuits by shutting down almost completely, causing a low reading on all channels, even though only one may be shorted out. Since this reading is below any reasonable setpoint, a running unit would remain on continuously, trying to attain its setpoint.

Answer: Assuming the other channels are working correctly, the most likely cause is that one or more of the wires between the Sending Unit and the GB4 or GB5 is either broken or disconnected. A less likely possibility is that the Sending Unit itself is defective.

Propane needs to be at its boiling point to give the best output. At or below 40°F propane starts to liquefy and will not give good performance.

The following formula can be used to estimate the time it will take to heat or cool a given bath volume by ΔT. The example illustrated below applies only to the circulator. When working with a closed loop external system such as a jacketed reaction vessel, it is important to add the volume of the tubing as well as the reaction vessel to the bath volume. open system consists of a circulator and an open external bath.

Yes, you can run across custom spring angles at custom molding shops. We manufacture jigs for the three common spring angles available at Home Depot, Lowe's or your local lumber store. We do not manufacture custom spring angle jigs. If you are purchasing custom molding, be sure and ask what spring angle it is, or you can request a 38°, 45° or 52° spring angle in order to use the Cut-N-Crown System with your custom molding.

Do yo have a difficult brazing problem or need help finding the right brazing product? We're here to help. E-mail us your brazing problems or questions at info@lucasmilhaupt.com.

The conversion formula is ?F = ?C x 9/5 + 32 or, in reverse, ?C = (?F - 32) X 5/9 . The formula also appears on this page. The "knot" is the unit used to describe the speed of the wind in Canadian marine forecasts. It is a measure of the wind speed in nautical miles per hour. One nautical mile is equal in distance to 1.852 kilometres.

The SuperVan 900 has shown that it has almost double the rate of climb of the OEM Caravan for the same operating conditions. It takes just under 13 minutes to get to 14,000 MSL on a 35°C/95°F day at a 9000lb. takeoff weight. (See climb chart)

Scientific studies show that bacterial growth rate in a milk vat is reduced if the milk gets to the vat at 4° C (39° F) and is maintained at that temperature. Milk can be stored at this temperature for 72 hours with relatively stable bacterial counts. The Eliminator solves the age old problem of dumping a full milking of warm milk into a vat of cold milk, and the bacterial growth problems that then occur due to oscillating temperatures.

The RSA cryptosystem involves repeated multiplication in the group of numbers modulo p. Thus encryption requires taking a certain element g of the group and computing gk, and then decryption involves taking another element h and computing hn. In order to make encryption faster, sometimes people take the encryption exponent k to be very small.

ANSWER: Lower temperature water treatment times have not been determined for EPA approval at this time for any chemical water disinfectant products. Our suggestion is to warm the water to be treated to 68° F if possible. When camping in cold conditions, water to be treated can be warmed by keeping the bottle close to your body, either in your jacket or sleeping bag.

Answer: Due to our high velocity discharge air, we are able to drive the heat to the floor resulting in a rapid mixing with surrounding air. Floor to ceiling variation typically does not exceed 3° F to 7° F. Our Building Study Program has confirmed this with real data at existing Cambridge installations.

Yes. If the unit is being used all of the time, you will need to install an additional heat source or leave the heat on to the area where the composter is located. If you are only using it occasionally on weekends during this time, don't worry about it.

Vesuvio Woodfired Ovens are made from the finest quality refractory materials able to withstand the highest temperatures. The cooking floor is made from 100% naturally quarried cotto clay quarried from the hills of Tuscany. The cooking floor contains a high content of alumina, perfectly smoothed which gives the ovens two very important features; total lack of foreign smells & tastes, perfect cooking of pizzas, baked dishes & an array of different foods.

ANSWER: Pumps that are rated up to 200°F are the PVDF models and all of the metal pumps. Check your chemical compatibility chart for compatibility.

Answer: It is the industry's highest rating for this type of space heating equipment and allows us to deliver the maximum amount of heat with the minimum amount of outside air. The maximum 160°F temperature rise/discharge temperature rating is crucial because it translates into lower horsepower motors, less outside air and reduced energy costs.

There are reliable reports that there are over 100,000 cookers in use in both India and China. We are aware of solar cooking projects in most of the countries of the world. Solar Cookers International has recently had a breakthrough in Kenya using the CooKit panel cooker. More than 5000 families are now solar cooking there.

Place an oven thermometer in the sunny part of the oven to get a reading similar to what the cooking pot is "feeling". The temperature reached by box cookers and panel cookers depends primarily on the number and size of the reflectors used. A single-reflector box cooker usually tops out at around 150? C (300? F) as the food approaches being done. High temperatures, however, are not needed for cooking. Your oven will cook just fine as long as it gets up to about 90? C (200? F) or so.

Microwave ovens are a technological breakthrough and a great convenience. However, microwave ovens are also a source of radiation that contaminates our food and our home. Despite reassurances from the FDA and oven manufacturers, microwave radiation is a potential cause of serious illness, including cancer. Homeowners can buy radiation-detecting devices, but these devices are notoriously unreliable. So I prefer to err on the side of safety and avoid microwave ovens.

Double-click on the document, and a menu will pop up asking you if you want to save the attachment to a disk or simply open the file. It is strongly recommended that you save the attachment to a disk to avoid virus vulnerablity. For Netscape Messenger, click on Attach, then File, and click on the appropriate file you want attached. For CUBMail, click Browse next to the Attachment field, then click on the file you want attached. Click Attach when you are done selecting the file.

PDF stands for portable document format. It is commonly used for web-publishing. To read pdf documents, you need to have Adobe Acrobat Reader installed in your computer. Adobe Acrobat Reader is free and can be downloaded at this site.

Between heating and cooling season, I want to turn my system off. Will this change the program? Aprilaire 8870 Communicating Thermostat Questions

Lady From Savannah: The Life of Juliette Low, by Gladys Denny Schultz and Daisy Gordon Lawrence (New York: Girl Scouts of the USA, 1988) is a very informative book about Juliette's life and family and is available for purchase through the Birthplace store, certain Girl Scout council shops or through the Girl Scout Online Shopping Mall. Also available through the Birthplace store is a reprint of the 1913 Girl Scout handbook. How girls can help the country.

Jonathan Biggar (July, 1998) : A session probably maps pretty much to the same thing as the duration of a security context. SecIOP, the corbasec standard security protocol can handle more than one context in parallel and sequentially on a single TCP connection. Nick Battle (July, 1998) : A good question. I think what you may have in mind is more properly called an "association".

Charpy Impact Test at Minus 4deg F for set of 3 specimens (including Machining charges) = US $ 30 per set We will need 3 specimens of about 15 x 15 x 75mm. please inform us size ( dia / thickness) of your material so that we can guide you how to take out the sample.

If you can determine where the cancels are coming form, mail the postmaster at that site (or abuse@site, if present) with your complaints. If this doesn't work, you may want to try notifying the people that give the site its newsfeed; for details on how to determine this, read the Spam Tracking FAQ. Your news administrator may be capable of making your machine not accept posts from a certain other machine. If necessary, this can be used to ignore the cancel messages on your own site.

The focal ratio or f/number relates to the brightness of the image and the width of the field of view. The focal ratio is the focal length of the objective lens or primary mirror divided by the aperture. The focal ratio concept comes from the camera world, where a small focal ratio meant a short exposure time for the film, and was said to be "fast.