Related Manuals for JENCO 6350M
Summary of Contents for JENCO 6350M
- Page 1 OPERATION MANUAL JENCO MODEL 6350M MICROCOMPUTER BASED pH/mV/Conductivity/ Salinity/Temperature PORTABLE METER JENCO ELECTRONICS,LTD MANUFACTURER OF PRECISION INSTRUMENTS...
-
Page 2: Table Of Contents
CONTENTS Page I. INITIAL INSPECTION II. GENERAL INTRODUCTION III. USING THE JENCO MODEL 6350M A. PRECAUTIONS B. THE KEYPAD C. SPECIAL KEY COMBINATION D. THE DISPLAY E. CONNECTORS F. REPLACING THE BATTERIES G. TURNING OFF/ON THE INSTRUMENT IV. MODEL 6350M MODES V. -
Page 3: Initial Inspection
Salinity, pH or mV. The user can switch back and forth from all these displays by just pushing a single key. The model 6350M is also equipped with a non-volatile memory allowing the user to store 50 different sets of readings. This model... -
Page 4: Using The Jenco Model 6350M
6350M will also assign a site number for each set of readings to let the user an easy review of the data. This instrument is powered by six AAA-size alkaline batteries or a UL/CE approved AC adapter. The instrument also displays a "LO BAT"... -
Page 5: The Keypad
2.Wait for the instrument and probe to be completely dry before resuming operation. 3. If unsatisfactory results are gained after doing the above, notify your Jenco representative for possible repair or replacement (See WARRANTY). B. THE KEYPAD ↓ ↓... - Page 6 3b. In pH mode this key will enable pH calibration. See CALIBRATION SET-UP. 4. The [ ∆ ] key. 4a. During pH readings (ONLY) this key will increment the temperature in the event the unit detects no temperature input. (see MANUAL TEMPERATURE COMPENSATION) 4b.
-
Page 7: Special Key Combination
ALL data in the non-volatile memory. Data in all 50 sites will be erased completely. Do not use the erase function until all recorded data has been reviewed or transcribed/downloaded outside the model 6350M. ( SEE SAVING AND RECALLING DATA.) D. THE DISPLAY... -
Page 8: Connectors
1. "LO BAT" -Low battery indicator. 2."RC"- to indicate that the unit is in recall mode and actively displaying saved data. 3. MAIN DISPLAY (pH, mV, Conductivity & Salinity) 4. "MAN" - used to indicate that a temperature sensor is not attached and the pH temperature compensation is manual. -
Page 9: Replacing The Batteries
F. REPLACING THE BATTERIES 1. Position the meter so that the bottom part of the meter is facing up . (Refer to figure 5.) Insert a coin in the side closure slot. Tilt the coin and thrust it upward to open the battery compartment and lift the closure up. -
Page 10: Model 6350M Modes
THE CELL CONSTANT IS SLIGHTLY DIFFERENT FOR EACH CONDUCTIVITY PROBE. REFER TO CALIBRATION SET-UP FOR PROCEDURES. IV. MODEL 6350M MODES This instrument is designed to provide 6 distinct measurements and 2 special modes: 1. Temperature - current temperature of the solution which is always displayed. - Page 11 4.Conductivity (mS/uS) - a measurement of the conductive material in the solution with no regard to temperature. 5.Compensated conductivity (mS/uS)- also known as specific conductance which automatically adjusts to a calculated value which would have been read if the sample had been at T =25°C &...
-
Page 12: Auto/Manual Ranging In Conductivity
For pH readings the "STAND" 12.00 annunciator will not blink if the unit is STAND calibrated, it is the same with the SLOPE annunciator. The "AUTO" will also be displayed STAND AUTO if a temperature sensor is available, 25.0 or "MAN" if no temperature sensor °C SLOPE is attached. -
Page 13: Manual Ranging
[∆] key while in any conductivity mode. You will be switching to the four ranges of the model 6350M then back to auto ranging again. During MANUAL RANGING the CONDUCTIVITY UNIT (mS & uS) will blink to signify you are in MANUAL RANGE. -
Page 14: Manual Temperature Compensation
[SLOPE] key for 5 sec. The 6350M will acknowledge by displaying “7.00” (7.00,4.01 & 10.01) or “6.86” (6.86,4.00 & 9.18) and the text “buf” at the secondary display then returns to normal pH operation. - Page 15 2. Place the probe in a standard 7.00 buffer solution (7.00 or 6.86 buffer depending on what model you are using). Press the [STAND] key. STAND 25.0 3. The "STAND" annunciator will °C stop flashing and stay ON. The display will change to the pH value of the current temperature (if a temperature probe is available the "AUTO"...
-
Page 16: Temperature Coefficient
"WAIT" annunciator will blink) then it will lock the value of the display, if during stabilization period and the reading changes more than 0.01 pH then this wait time (about 10 seconds) will restart (In this case : A. you can change the solution. B. just abort by pressing the [MODE] key. -
Page 17: Cell Constant Calibration
1. After the power-on diagnostics, go to any conductivity mode and press the [∇] and [MODE] keys simultaneously, the CAL annunciator will appear on the lower left of the display. The large portion will display 1.91 % or a value set previously using this procedure. -
Page 18: Saving And Recalling Data
The old Cell Constant will be retained and the unit will return to normal operation. VIII. SAVING AND RECALLING DATA The Model 6350M is equipped with a non-volatile memory than can store up to 50 different sets of readings. Non-volatile memory will be retained even if power is lost. -
Page 19: Recalling Readings From Memory
OPERATION for more information. 1. Press the [MODE] key repeatedly until Recall mode ("rcl" see MODEL 6350M modes) is displayed on the screen along with the site number on lower right corner. 2. Press the [ENTER] key to display the last set of data that was saved. -
Page 20: Rs232C Interface Operation
C. SOFTWARE A demo program written in Visual Basic® 6.0 and the source are included in the accompanying disk. Read the “Model 6350M RS232 protocol.doc” to understand the procedure used inside the demo program. -
Page 21: Error Displays And Troubleshooting
X. ERROR DISPLAYS AND TROUBLESHOOTING MAIN SECONDARY Possible cause(s) MODE [Action(s)] display display "OVEr" "ovr" a. pH Temperature > 100.0°C. b. pH-Cal [Bring buffer/solution to a lower temperature.] [Replace temperature probe.] "OVEr" "ovr" a. Conductivity a. Temperature > 100.0°C. b. Salinity [Bring solution lower... - Page 22 MAIN SECONDARY Possible cause(s) MODE [Action(s)] display display "OVer" any reading mV input > 1500 mV "OVer" -5.0~ 100.0°C Salinity Conductivity > 30.00 mS (k=1.0). Salinity > 80.0 ppt. [Check calibration.] [Check temperature reference and temperature coefficient.] "OVer" -5.0~ 100.0°C Cond-Cal - after New cell constant >...
-
Page 23: Specifications
MAIN SECONDARY Possible cause(s) MODE [Action(s)] display display "Lerr" -5.0~ 100.0°C a. Compensated Temperature exceeds the values Conductivity computed using user defined b. Cond-Cal temperature coefficient and/or reference temperature. [Adjust temperature reference and/or temperature coefficient.] [Bring temperature to a suitable range.] "Err"... - Page 24 Range Resolution Accuracy -2.00 to 16.00 pH 0.01 pH ±0.01 pH ± 1 LSD Range Resolution Accuracy -1500 to 1500 mV 1 mV ±0.1% of reading ± 1 LSD Salinity Range Resolution Accuracy 0.0 to 50.0 ppt 0.1 ppt ± 1% FS Temperature Range Resolution...
-
Page 25: Ph Buffers
[SLOPE] key for 5 sec. The 6350M will acknowledge by displaying “7.00” (7.00,4.01 & 10.01) or “6.86” (6.86,4.00 & 9.18) and the text “buf” at the secondary display then returns to normal pH operation. -
Page 26: Preparing Standard Solutions
Here are some standard solutions the user can prepare to calibrate the conductivity probe of the model 6350M. 1. Standard solution of 1413 µS at 25°C: accurately weight out 0.746 grams of research grade dried Potassium Chloride (KCl). Dissolve in 1000ml of deionized water 2. -
Page 27: Xiv.warranty
If you purchased the item from our Jenco distributors and it is under warranty, please contact them to notify us of the situation. Jenco Service Department alone will determine if the product problem is due to deviations or customer misuse. - Page 28 JENCO ELECTRONICS, LTD. P.O. BOX 117, JHONG JHENG RD, LINKOU SHIANG, TAPEI HSIEN, TAIWAN. R.O.C. TEL: (886-2)2601-6191 FAX: (886-2)2601-7206 E-MAIL: jencoe@ms2.hinet.net SHANGHAI JENCO ELECTRONICS, LTD. 18 Wang Dong Zhong Road Sijing Town,Songjiang SHANGHAI, CHINA TEL: 86-21-5761-9599 FAX: 86-21-5761-9598 http://www.jenco.com.cn E-MAIL:...
- Page 29 文件名称 使用说明书（英文） 机型 编制人 罗多福 编制日期 2003/4/29 6350M 文件编号 修改人 张潘潘 修改日期 K6350M02 2008/08/14 版本号 核准人 核准日期 修改记录：内容、原因及版次 2005-2-25: P26:修改保修期为3 YEARS. 2007-7-26： P27：JENCOI E-MAIL地址有变动。JENCOE POBOX地址修改。 2008-8-14: P23: 修改盐度范围为”0.0 to 50.0 ppt” P27: 修改上海电子邮件地址为”jencos@jenco.com.cn”...
Need help?
Do you have a question about the 6350M and is the answer not in the manual?
Questions and answers