Delmhorst Instrument Co. Model G-7 v.2.
9 CLEAR MEMORY 10 SECTION B – TAKING A READING 10 TESTING GRAINS 10 TESTING GRAIN AND SEED IN BAGS 10 TESTING FESCUE AND OTHER GRASS SEEDS 11 TESTING HAY 12 SECTION C: FACTORS AFFECTING YOUR READINGS 12 GRAIN TEMPERATURE 12 MOISTURE DISTRIBUTION 12 SAMPLE SIZE 12 UNIFORMITY OF SAMPLE 13 CARE OF YOUR METER 13 SERVICE FOR YOUR METER 14 WARRANTY IMPORTANT NOTE: When turning G-7 “ON”, allow it to run through its entire initialization before pressing any keys.
determined by standardized, approved methods. In these laboratory tests it was found that the readings are on the average within + 0.5% in the range 9 to 17 and + 1.0% in the range 17 to 23. The operating instructions for the G-7 are divided into three sections. Section A (Meter Operation) is a step-by-step guide to the different features and basic use of your moisture meter. Section B (Taking a Reading) contains information on how the meter is used for testing different grains.
SECTION A – METER OPERATION KEY SWITCH FUNCTIONS #1 – ON/OFF Turns the meter on and off. The G-7 has an automatic shut off feature, which turns the meter off after 4 minutes of either LOW readings only or no key activity. The 4-minute timer is user-adjustable. #2 – ENTER The ENTER key accepts a selection you make for the various functions made available through the menus. This key also stores displayed reading in memory.
TEMP. MODE – The G-7 defaults to a temperature of 80°F. As grain temperature increases, indicated moisture content rises. Lower grain temperatures result in lower indicated moisture content. The temperature modes are: AUTOMATIC: A built-in temperature sensor measures the temperature of the grain sample. Let the grain sample remain in the sample cup for at least 5 minutes prior to taking a reading to allow the meter to correctly read the grain temperature.
Before changing the offset, we recommend that you determine the average of at least three tests with the G-7 on the sample that was tested with the elevator meter. If you accept the elevator moisture meter as a standard, then adjust the %MC offset to match the elevator. Press the UP key until the display reads Set %MC offset?. Press Enter to change the %MC offset. Use the UP/DOWN keys to scroll forward or backward to the offset value desired.
c) d) e) f) g) Temp. Scale = Fahrenheit Alarm Set Point = 15.0% All Offsets = 0 Menu Timer = 4 secs. Off Timer = 4 minutes Press the UP key until the display reads Reset meter? Press ENTER to reset meter. The display will read “Memory storage is cleared. Meter is reset.” The following functions are “stand alone functions” accessed by scrolling up or down the main menus. They are not part of the Setup Menu.
volts. This is an indication that the remaining battery life is 1-1/2 hrs of continuous “on” time. SELECT THE GRAIN To change the scale, press the UP/DOWN key until the display reads “Select grain? Press ENTER to view the available grains. The meter will display “Change Grain to: Using the UP/DOWN keys to view the list of grains. Press Enter to select the desired grain.
To scroll backward to a previously stored reading, press the DOWN key VIEW STATISTICS Press the UP key until the display reads “Statistics? If you have stored readings in more than one batch, the meter will display the current grain. To view statistics of another grain with stored readings, press the UP key until the desired batch is displayed. After you have selected the batch, press the ENTER key . The display will cycle through the following statistics: 1. Total: Avg.
Press the UP key until the display reads: Clear Memory? Press the ENTER key. The display will read “Memory storage is cleared.” SECTION B – TAKING A READING TESTING GRAINS Fill the sample cup with a single layer if grain or seed and place it on the pressure plate. Place electrode upper plate in position. Turn the electrode screw until you feel some resistance to turning it. Then turn it an additional one and a half turns. Press the “ENTER” key to store the displayed reading in memory.
cable to the external connector on top of the moisture meter. Set the meter to HAY. Push the #832 prod into the seed and Press down on the electrode until the head of the screw which holds the pressure button, touches the palm of your hand. Press the “ENTER” key to store the displayed reading in memory. NOTE: A reading of 12% normally indicates that the seed is at a safe level of moisture content. A reading of 14% indicates a borderline condition of moisture content.
on the sample is 27 – 30 lbs., which closely simulates the pressure in a standard bale of hay. If you do not have the #831 short pin prod, squeeze a handful of hay around the tip of the 830-2 for an estimate of windrow moisture levels. For more detailed information about using the G-7 on hay, please call Delmhorst Instrument Co. at 877-DELMHORST (335-6467). You also may download any of the owner’s manuals for our hay moisture meters from our web site at www.delmhorst.
a moisture content too high for safe storage. It is more important to know the range and distribution of moisture in stored grain than it is to know the average moisture content, since an average may not reveal the presence of high moisture pockets. Moisture migration may result in an accumulation of moisture in the top layers of the grain. It is necessary, therefore, to take at least one sample from this area when checking the moisture content of grain in a bin.
WARRANTY Delmhorst Instrument Co., referred to hereafter as Delmhorst, guarantees its G-7 meter for one year from date of purchase and any optional electrodes against defects in material or workmanship for 90 days. If, within the warranty period of the G-7, you find any defect in material or workmanship return the meter following the instructions in the “Service for Your Meter” section.
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