Subscribe to Our Youtube Channel
Related Manuals for JENCO 6308CT
Summary of Contents for JENCO 6308CT
- Page 1 OPERATION MANUAL JENCO MODEL 6308CT MICROCOMPUTER BASED Conductivity/TDS & Temperature CONTROLLER JENCO ELECTRONICS,LTD MANUFACTURER OF PRECISION INSTRUMENTS...
-
Page 2: Table Of Contents
CONTENTS page INITIAL INSPECTION and ASSEMBLY MOUNTING PROCEDURE GENERAL INTRODUCTION III. USING THE JENCO MODEL 6308CT A.FRONT PANEL B.NORMAL MODE DISPLAY C.REAR CONNECTORS D.TURNING ON/OFF THE INSTRUMENT PROBE HANDLING AND MAINTANCE MODEL 6308CT MODES A. NORMAL MODE B. CALIBRATION/SETTING MODE a.PASSWORD CHECK PAGE... -
Page 3: Initial Inspection And Assembly
I. INITIAL INSPECTION and ASSEMBLY Carefully unpack the instrument and accessories. Inspect for damages made in shipment. If any damage is found, notify your Jenco representative immediately. All packing materials should be saved until satisfactory operation is confirmed. MOUNTING PROCEDURE 1. - Page 4 Cleaning the instrument: 1. Be sure to remove the power before attempting to clean the meter. 2. Use a lint free cloth and clean water or neutral detergent. 3. Wipe the outer surface of the instrument only. 4. Wipe-dry the instrument before powering again.
-
Page 5: General Introduction
The system also has an isolated 4-20mA analog output, offset and span configurable for Conductivity/TDS display. The model 6308CT comes with a RS485 interface which can easily let the user log all data (from multiple model 6308 or 6309) with an IBM PC/AT compatible computer. -
Page 6: Using The Jenco Model 6308Ct
III. USING THE JENCO MODEL 6308CT A. FRONT PANEL 1. The [MODE/-] key. 1a. In Normal mode this key 6308CT will change the display to JENCO Conductivityor TDS. 1b. In Calibration/Setting mode this key will move to the next digit of the current active parameter. -
Page 7: B.normal Mode Display
5. The [ ] ENTER key. During Calibration/Setting mode this key will save the current modified parameter and move to the next parameter on the page if the parameter is the last one on the page then it will move to first parameter on the next available page. 6. -
Page 8: C.rear Connectors
Relay 1, if this is displayed then the relay is ON. (H stands for high action control and L stands for low action control) 5. H2 or L2 annunciator – this is the status of Conductivity/TDS Relay 2, if this is displayed then the relay is ON. 6. -
Page 9: D.turning On/Off The Instrument
1. Connect the AC line to the rear of the instrument. The model 6308CT can be used with 115 or 230 VAC 50/60 Hz. Power consumption is 6 watts. Make sure the EARTH connector is connected to the earth lead of the AC power line. -
Page 10: Probe Handling And Maintance
halfway to the liquid. If possible do not allow the probes to touch any solid object in the solution. There should be no air bubbles around the probes either. Shaking or moving the probes vigorously before recording any measurement will dislodge any bubbles formed in the probes. -
Page 11: Model 6308Ct Modes
For long-term storage, after rinsing the probe thoroughly, the exterior body should be wiped dry before storing it. IV. MODEL 6308CT MODES A. NORMAL MODE Turning ON the unit will always display Conductivity in normal mode. - Page 12 For this reason, the model 6308CT allows the user to output conductivity in either raw or compensated form. If the user Temperature Coefficient (TC) is set to 0.00% then an uncompensated Conductivity is output to the screen.
- Page 13 amount of dissolved ions, but does not tell us the nature or ion relationships. The TDS Factor is just a simple multiplier that must be determined by the user experimentally. The default factor of 0.5 is only useful for a coarse estimate of TDS. Temperature and Conductivity (or TDS) are always simultaneously displayed in the graphic LCD screen in normal mode.
-
Page 14: Calibration/Setting Mode
B. CALIBRATION/SETTING MODE Pressing the [CAL/VIEW] key for about 2 seconds during normal display mode will bring-up the first page of 6 pages of the Calibration/Setting mode. Pressing [CAL/VIEW] key will switch to the next page until the last page, where pressing [CAL/VIEW] again will return the user to main display mode. -
Page 15: A.password Check Page
3. If you are satisfied with the selection you made you need to press the [ ] ENTER key to save the changes and move to the next option. 4. If you don’t need to change the current blinking option just press ... -
Page 16: B.user Setting Page
b.USER SETTING page You will only see this page if the unit is not password locked. This page is just a warning, telling you that all relays are frozen, and that you can calibrate and change the settings. Note: Frozen means all the relays and the analog out will maintain their last state until the user returns to main display mode. - Page 17 3. REF. TEMP. – If the Temperature Coefficient (TC) is not zero then the model 6308CT will use the value here to calculate and display the compensated conductivity or TDS. The display will be the value as if the temperature is the Reference Temperature.
- Page 18 10. Wait for the conductivity reading to be stable. 11. Press the [ENTER] key to capture the stable reading and freeze the reading. The model 6308CT will blink the first digit to tell the user that he/she can now input the standard solution value.
-
Page 19: D.conductivity Control Setting Page
Before reading the sample (unknown solution): 1. Clean the probe thoroughly. 2. Move to CONDUCTIVITY CALIBRATION page. 3. Set the RANGE to the approximate range of the solution. 4. If you want a compensated reading, input the most similar Temperature Coefficient of the sample or use the default of 2.00%. Set the Temperature coefficient to 0.00% if you want just the raw uncompensated conductivity. -
Page 20: E.current Setting Page
blinking digit, use the [MODE/-] key to select another digit and the [ ] key to save the new set point. 2. ?? RELAY2(action) - The action for this relay is changeable, you can choose “HI”-action or “LO” action. (In HI-action the relay will turn ON if the conductivity or TDS is greater or equal to RELAY2 value, in LO-action the relay will turn OFF if the conductivity or TDS is greater or equal to RELAY2 value, which... -
Page 21: F.temp. Control Setting Page
CONTROLLING THE RELAYS . 5. RS 485 ID – this is the unique ID/Address for the unit. If you are connecting multiple model 6308CT or other Jenco models for logging purposes then this ID/Address must be unique for each connected unit. This ID/Address is the same address that must be used by the PC program to communicate with this unit. -
Page 22: Controlling The Relays
V. CONTROLLING THE RELAYS A. ISOLATION VOLTAGE The maximum isolation voltage of the relay output contacts is 1500 VDC. The voltage differential between the relay output contacts and the load should not exceed 1500 VDC. B. OUTPUT LOAD The current through the relay output contacts should not exceed 5 Amp at 115 VAC and 2.5 Amp at 230 VAC in order not to cause permanent damage to the relay contacts. -
Page 23: D.conductivity/Tds Relays
Relay Hysteresis Effective RELAY- Effective RELAY- Action mode ON Setpoint OFF Setpoint HIGH CENTER S.P.+ ½(H.V.) S.P. -½ (H.V.) HIGH EDGE S.P. S.P. –(H.V) CENTER S.P.-½ (H.V.) S.P.+½ (H.V.) EDGE S.P.+(H.V.) S.P. = Relay Set point H.V.= Hysteresis value (DeadBand) D. -
Page 24: E.temperature Relay
E. TEMPERATURE RELAY One relay channel is available for temperature display which has independent set point and HIGH or LOW action (see fig. 1) setting, hysteresis mode (center or edge) and hysteresis value. The action of the Temperature relay is dependent on set point, relay action (HIGH or LOW), hysteresis mode (Center or Edge) , hysteresis value and the current Temperature display. - Page 25 The analog output is based on the following equation : = 4mA + (16mA) * (D - C(4)) / (C(20) – C(4)) Where : = analog output = current conductivity or TDS display C(4) = conductivity or TDS user setting for 4 mA C(20) = conductivity or TDS user setting for 20 mA.
-
Page 26: Rs485 Interface Operation
ID number) and turned on both the meter(s) and the computer, you are now ready to program a simple routine to read data from the instrument. Read the file "6308CT.TXT" in the accompanying disk to jump-start you in using the meter with your RS485 enabled PC. -
Page 27: Viii.error Displays And Troubleshooting
VIII. ERROR DISPLAYS AND TROUBLESHOOTING Possible cause(s) mode display display [Action(s)] "TERR" "OVER" Conductivity, a. Temperature > 120.0°C. Cell [Bring solution to a lower Calibration temperature.] [Replace temperature probe.] b. No temperature sensor.. [Use a temperature probe.] "TERR" "UNDR" Conductivity, Temperature <... -
Page 28: Specification
IX. SPECIFICATIONS Conductivity / TDS RANGE Basic Cell K Resolution Accuracy 0.5% ±1 LSD 0 to 9.999 uS/ppm 0.01 0.001uS/ppm 0.5% ±1 LSD 1 to 99.99 uS/ppm 0.01 0.01uS/ppm 0.5% ±1 LSD 10 to 300.0 uS/ppm 0.01 0.1uS/ppm 0.5% ±1 LSD 0.0 to 99.99 uS/ppm 0.10 0.01uS/ppm... - Page 29 4-20mA Output Current output range 4 to 20 mA (isolated) Current output scale user programmable Maximum load Accuracy ± 0.1 mA Isolation voltage 500VDC Controller Control type ON/OFF control Relay output 5A at 115VAC or 2.5A at 220VAC GENERAL Keys Audio feedback in all keys Security protect...
-
Page 30: Warranty
If you purchased the item from our Jenco distributors and it is under warranty, please contact them to notify us of the situation. - Page 31 6F., No. 81, Sec. 2, Chang-an E. Rd., Jhongshan District, Taipei City 104, Taiwan TEL: 886-2- 2508-2928 FAX: 886-2- 2508-2938 E-Mail: sales@JENCO.com.tw Website: www.JENCO.com.tw Shanghai Jenco Instruments Co Ltd. 18 Wang Dong Zhong Rd., Sijing, Songjiang, Shanghai, China.201601. Tel: 8621-5761-9600. Fax: 8621-5761-9598. Email: jencos@jenco.com.cn (20200311 ) (for Model CTN v1.00)
Need help?
Do you have a question about the 6308CT and is the answer not in the manual?
Questions and answers