Operation manual hand-held conductivity/salinity/tds/ temperature meter ec3840
1 contents general introduction………………....................2 initial inspection……...………………....................2 water proof…….……...………………....................2 installing the batteries..…………....................3 display & keys functions…..……………...…………4 a. Display ..........................................
2 general introduction thank you for selecting the ec3840 meter. The ec3840 is a precision tool that measure conductivity, salinity, tds and temperature. A built-in microprocessor stores, calculates and compensates for all parameters related to conductivity and temperature determinations. This unit ...
3 3. If the unit does not function correctly after steps1 and 2, call jenco for possible repair or replacement (see warranty). Installing the batteries the ec3840 meter is packaged with 4 “aaa” alkaline batteries required for operation. To insert the batteries into the meter, follow the procedure ou...
4 display & keys functions a. Display 1 2 3 4 5 6 7 8 9 10 11 12 13 figure 2: active lcd screen 1. Conductivity- displays when measuring conductivity. 8. Cell- indicates conductivity cell constant value. 2. Bat- low battery indicator. 9. ℃/%- displays during calibration: ℃: indicates temperature ref...
5 b. Keys on/off- powers on and shuts off the meter. M ode mode- selects display mode. In normal operation, press mode to sequentially display compensated conductivity, salinity, total dissolved solids (tds) and uncompensated conductivity. In calibration mode, this key exits the current calibration ...
6 3. Standard solution of 111.9ms at 25℃: accurately weight out 74.264 grams of research grade dried potassium chloride (kcl). Dissolve in 1000ml of distilled water. [note: you can store the remaining solution in a plastic container for one week but the air space between the cap and the solution mus...
7 [ note: be certain to press “enter” key to reset the cell constant to 0.50. If “mode” key is pressed, the unit retains the previous cell constant and calibrates from a value that is already offset. ] temperature coefficient the unit uses the temperature coefficient to calculate temperature compens...
8 2. Press “mode” key to enter the desired measurement mode. The message “rage” (range) may appear briefly on the display indicate auto-ranging; this is normal. Allow temperature to stabilize before taking measurements. Error displays and troubleshooting [ note: if the unit still does not perform no...
9 specifications display range resolution accuracy conductivity 0.0 to 499.9us/cm 500 to 4999us/cm 5.00 to 49.99ms/cm 50.0 to 200.0ms/cm 0.01us/cm 1us/cm 0.01ms/cm 0.1ms/cm ±1% of reading + 2us/cm ±1% of reading + 5us/cm ±1% of reading +0.05ms/cm ±2.5% of reading + 0.5ms/cm salinity 0.0 to 70.0ppt 0...
10 warranty jenco warrants this product to be free from significant deviations in material and workmanship for a period of 1 year from date of purchase. If repair or adjustment is necessary and has not been the result of abuse or misuse, within the year period, please return-freight-prepaid and the ...
11 jenco instruments, inc. 7968 arjons drive, suite c san diego, ca 92126 usa tel: 858-578-2828 fax: 858-578-2886 e-mail: jencoinfo@jencoi.Com; sales@jencoi.Com website: www.Jencoi.Com jenco electronics inc. P.O. Box linkou 117 taipei, taiwan tel: 886-2-2601-6191 fax: 886-2-2601-7206 shanghai jenco ...
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