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JENCO 3321, Operation Manual

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19

standization solution value, then press

[ENTER]

key to save. Calibration is now

completed.

H. Controlling the relays

1.

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.

2.

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. This rating is specified for resistive loads only.

Summary of Contents for 3321

Page 1: ...Operation Manual MODEL 3321 Microcomputer Based Conductivity Resistivity Controller JENCOELECTRONICS LTD MANUFACTURER OF PRECISION INSTRUMENTS ...

Page 2: ...NCO MODEL 3321 3 A Mounting procedure 3 B Front panel 5 C LCD screen 7 D Rear connectors 9 E Measure mode 10 F Setting mode 11 G Conductivity Resistivity calibration mode 18 H Controlling the relays 19 ERROR DISPLAY AND TROUBLESHOOTING 21 SPECIFICATIONS 23 WARRANTY 25 ...

Page 3: ...ge LCD screen The model 3321 microprocessor performs a self diagnostic routine every time you turn on the unit it will provide you with basic information on the stability of the instrument The model 3321 is equipped with 2 control relays All control relays are programmable and hysteresis driven INITIAL INSPECTION Carefully unpack the unit and accessories Inspect for damages made in shipment If any...

Page 4: ...622 0 813 0 032 0 61 0 024 0 00 0 000 0 000 0 000 DRAWING 1 1 Make a cutout on any panel with a thickness of 1 16 inch 1 5mm to 3 8 inch 9 5mm Refer to DRAWING 1 DRAWING 2 2 Remove the mounting assembly from the controller and insert the controller into the cutout Refer to DRAWING 2 Mounting Brackets ...

Page 5: ...he mounting bracket assembly onto the controller and secure the controller to the mounting panel Refer to DRAWING 3 Note If the equipment is used in a manner not specified by the manufacturer the protection provided by the equipment may be impaired ...

Page 6: ...de this key will switch the display in sequence from Conductivity Temperature and back to Conductivity again or from Resistivity Temperature and back to Resistivity again 1b In the Calibration Setting mode pressing this key for five seconds will move you back to the previous parameter in the case when recalibration resetting is required ...

Page 7: ...Calibration mode 3 DOWN key 3a In the Calibration mode pressing this key will decrease the numeral increment In the Setting mode pressing this key will show the next possible option and decrease the numeral increment 3b In the Measure mode pressing this key and ENTER key at the same time the unit will enter the Setting mode 4 ENTER key In any mode where the user can change the settings pressing th...

Page 8: ... the user to the next setting C LCD screen HI1 LOW2 HI2 LOW1 uS CAL MAN M mS ATC 1 2 3 4 5 6 10 9 8 7 1 Major LCD display 2 CAL This icon will be displayed if the meter is in the Calibration Setting mode ...

Page 9: ...icons when displayed indicate relay action and relay number 5 MΩ Unit indicator 6 Temperature and unit display 7 uS Unit indicator 8 ATC This icon will be displayed when a temperature probe is connected 9 MAN This icon will be displayed if no temperature probe is not connected 10 mS Unit indicator ...

Page 10: ... Connect the AC line to the rear of the instrument The model 3321 can be used with 100 240V AC at 50 60 HZ Make sure the EARTH connector is connected to the earth lead of the AC power line 2 Connect the proper load to the output relays Make sure that the load does not exceed the relay rating 5 Amp at 115VAC and 2 5 Amp at 230 VAC ...

Page 11: ...on may damage the unit permanently E Measure mode Turning on the unit will always display the Measure mode This instrument is designed to provide 2 distinct measurements Conductivity Temperature or Resistivity Temperature MODE mS ATC ATC M ATC ATC MODE MODE MODE or 1 Conductivity Current conductivity of the solution 2 Resistivity Current resistivity of the solution ...

Page 12: ... modes above F Setting mode Pressing DOWN key and ENTER key at the same time the meter will enter into the Setting mode 1 Temperature compensation select ENTER Temperature coefficient select MAN CAL ATC CAL ENTER ENTER Pressing UP key or DOWN key in this screen will cycle the display between 01 Thermistor 10k ohm 02 Manual modes above ...

Page 13: ...een 2 Temperature Coefficient select Temperature compensation select probe Basic cell constant select ENTER ENTER ENTER CAL CAL Pressing UP key or DOWN key in this screen will cycle the display between E2 00 E0 00 above Select the preferred coefficient press ENTER key to save and enter the next setting screen ...

Page 14: ...N key in this screen will cycle the display from C1 00 C0 10 to C0 01 basic cell constant above Select the preferred basic cell constant press ENTER key to save and enter the next setting screen 4 Range select Pressing UP key or DOWN key in this screen will cycle the display from CF01 0 000 1 999uS cm CF02 0 00 19 99uS cm CF03 0 000 1 999MΩ ...

Page 15: ... cm Basic cell K is C0 10 or CF01 0 0 199 9uS cm CF02 0 1999uS cm CF03 0 00 19 99mS cm Basic cell K is C1 00 above Select the preferred basic cell constant press ENTER key to save and enter the next setting screen ENTER ENTER ENTER ENTER ENTER CAL Relay 1 HI LOW select CAL CAL CAL CAL ...

Page 16: ...15 ENTER ENTER ENTER CAL CAL CAL Relay 1 HI LOW select ENTER ENTER ENTER ENTER CAL CAL CAL CAL Relay 1 HI LOW select ...

Page 17: ...int value ENTER ENTER ENTER HI1 CAL CAL LOW1 Pressing UP key or DOWN key in this screen will cycle the display from HI LOW modes above Select the preferred mode press ENTER key to save and enter the next setting screen Note See H Controlling the relays page ...

Page 18: ...e and enter the next setting screen 7 Relay 1 hysteresis value Pressing UP key or DOWN key in this screen to adjust the value press ENTER key to save and enter the next setting screen Relay 1 Hysteresis value ENTER uS ENTER CAL Relay 1 HI LOW select Relay 2 HI LOW select Relay 1 set point select ENTER uS CAL ENTER ...

Page 19: ...uctivity or resistivity In the Measure mode pressing UP key and ENTER key at the same time to allow the meter to go to the Conductivity Resistivity calibration mode At the Conductivity Resistivity calibration mode the CAL icon and a conductivity resistivity reading will display Rinse the conductivity probe in distilled water and immerse it into the standization solution Allow temperature reading t...

Page 20: ...f the relay output contacts is 1500 VDC The voltage differential between the relay output contacts and the load should not exceed 1500 VDC 2 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 This rating is specified for resistive loads only ...

Page 21: ... HIGH the relay will turn ON at Set Point 1 2 Hysteresis and will turn OFF at Set Point 1 2 Hysteresis If the relay action is set to LOW the relay will turn ON at Set Point 1 2 Hysteresis and will turn OFF at Set Point 1 2 Hysteresis There are two Independent relays the user can bind to the Conductivity or Resistivity mode The user can only bind the two relays to one reading mode at a time The use...

Page 22: ...ion s OvEr 10 0 120 0 C Measure mode Reading is over the specified range Change range to higher level Undr 10 0 120 0 C Measure mode Reading is under user specified range Change range to lower level Immerse the conductivity probe into standization solution OvEr OvEr Measure mode a Temperature 120 0 C Bring standization solution to ...

Page 23: ... No temperature sensor Adjust the manual temperature to 10 120 C OvEr Undr Measure mode a Temperature 10 0 C Bring standization solution to higher temperature Replace temperature probe b No temperature sensor Adjust the manual temperature to 10 120 C ...

Page 24: ...5 FS 1 digit 0 01 0 00 19 99uS cm 0 000 1 999MΩ 0 01uS cm 0 001MΩ 0 5 FS 1 digit 0 10 0 00 19 99uS cm 0 01uS cm 0 5 FS 1 digit 0 10 0 0 199 9uS cm 0 1uS cm 0 5 FS 1 digit 1 00 0 0 199 9uS cm 0 1uS cm 0 5 FS 1 digit 1 00 0 1999uS cm 1uS cm 0 5 FS 1 digit 1 00 0 00 19 99mS cm 0 01mS cm 0 5 FS 1 digit Temperature 10 0 to 120 0 C 0 1 C 0 3 C ...

Page 25: ...r selectable Temperature Temperature sensor Thermistor 10k ohm at 25 C User selectable Manual Controller Control type Two ON OFF control Relay output Resistive load only 5A at 115VAC or 2 5A at 220VAC General Keys Audio feedback in all keys Power 100VAC to 240VAC 50 60Hz Ambient Temperature range 0 0 to 50 0 C Case IP65 1 8DIN case depth 90mm ...

Page 26: ...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 Out of warranty products will be repaired on a charge basis RETURN OF ITEMS Authorization must be obtained from one of our representatives before returning items for any reason When applying for au...

Page 27: ...ents in design construction and appearance of our products without notice 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 Ltd 4F NO 80 Songde Rd Xinyi Dist Taipei City 110 Taiwan TEL 886 2 2345 6188 FAX 886 2 2345 6791 E Mail sales jenco com tw Website www ...

Page 28: ...27 Shanghai Jenco Instruments Ltd 18 Wang Dong Zhong Road Sijing Town Songjiang Shanghai China TEL 86 021 5761 9599 FAX 86 021 5761 9598 E Mail sales jenco com cn Website www jenco com cn ...

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