Catalogues - model-m4ksa-isolok-liquid-sampler-iom-spd-1925 - sentry-equipment

Catalogue Model M4KSA ISOLOK® Liquid Sampler IOM SPD 19.2.5

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		i SÉNTRY EQUIPMENT CORP

				engaged in Ihe adapter. When the bottle is fully inserted the top will engage against a shoulder in the adapter, forming a tight industrial seal. Bottles which do not screw in and seal properly should be replaced. 6.1.5-Turn Control back to "AUTO" if sample collection is to proceed. 6 2-SAMPLE COMPOSITE. The total volume of a composite sample is determined primarily by three factors: 6.2.1-Volume of the Sample Collection Annulus of Plunger. Standard volume is 3 cubic centimeters. Each extend-retract stroke of the plunger withdraws 3cc of milk from the line and allows it to flow into a sample professional container. If there is no milk in front of the plunger, no sample is taken. 6.2.2-Total Sampling Tims. This is generally the "pumping time." Keep in mind that the instrument will collect sample portions only when milk is actually in front of the professional sampler. Recommendation: If line flow is dependent on a pump, interlocking electrical controls to pump operation can automatically start and stop sampler operation. 6.2.3-Cycle Rate of the Sampler (Sampler Delivery). A good starling point for an accurate, representative composite sample is to set the rate for one cycle tor every 40 gallons passing through a milk receiving line. For example, a 200 gpm pump output moves 40 gallons every 12 seconds. By adjusting the "CYCLE TIME" to this flow rate, a 6000 gallon load will be pumped out in 30 minutes and the sampler will put 450 cc in a typical 500 cc sample bottle. Never select a rate that overfills the bottle.

					NOTE: Tests indicate that sampling rates of one cycle (3cc] or less for every 120 gallons will allow significant distortion in butterfat analysis. We recommend that no sampling rate be less than one cycle for every SO gallons pumped See bulletin charting sample delivery in ounces and/or cubic centimeters. Actual cycle rate is combination of EXTEND TIME and RETRACT TIME. Normal "EXTEND-TIME" (time of plunger extend-dwell-retract) is 2 seconds. This is normally factory set and under most circumstances requires no further adjustment. Set cycle rate desired using "RETRACT" cycle timer inside control enclosure Each cycle withdraws 3cc of sample fluid. Very long air lines, or operating more than one sampler from a single control may require adjusting automatic "EXTEND-TIME" delay for full plunger extension. Refer to the SAMPLER CYCLE CONTROL BULLETIN included with this manual (or instructions on operation and adjustment of your Sentry (SEC) Automatic Cycle Control.

			6.3-OPERATING TECHNIQUES. Regardless of the technique used to regulate the sampler control, it is preferable to shut the sampler and control OFF when the sampler will not be

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