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SPECIFICATIONS

Mode

Range

Resolution

Accuracy

-2.00 to 16.00 pH

0.01 pH

±0.1% ± 1 digit

ORP Absolute mV

-1999 to 1999 mV

1 mV

±0.1% ± 1 digit

ORP Relative mV

-2999 to 2999 mV

1 mV

±0.1% ± 1 digit

Temperature

-10.0 to 120.0 °C

0.1 °C

±0.3 °C

pH:

Recognized pH buffers

US (4.01, 7.00, 10.01) or NIST (4.00,

6.86, 9.18)

pH Temperature compensation

Manual/Auto -10.0°C to 120.0 °C

pH Buffer Temperature range

0.0°C to 60.0 °C

pH Electrode Offset recognition



100 mV at pH 7.00

+108.3 mV/-91.7 mV at pH 6.86

Содержание 3631

Страница 1: ...Operation Manual MODEL 3631 Microcomputer Based pH ORP Transmitter JENCOELECTRONICS LTD MANUFACTURER OF PRECISION INSTRUMENTS ...

Страница 2: ...MODEL 3631 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 pH calibration mode 17 H RmV calibration mode 19 I 4 20mA output 20 ERROR DISPLAY AND TROUBLESHOOTING 23 pH BUFFERS 27 SPECIFICATIONS 29 WARRANTY 30 ...

Страница 3: ... The model 3631 microprocessor performs a self diagnostic routine every time you turn on the unit providing you with basic information on the stability of the instrument The model 3631 has an isolated 4 20mA analog output offset and span configurable for the pH or ORP display INITIAL INSPECTION Carefully unpack the unit and accessories Inspect for damages made in shipment If any damage is found no...

Страница 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 Mounting Brackets DRAWING 2 2 Remove the mounting assembly from the controller and insert the controller into the cutout Refer to DRAWING 2 ...

Страница 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 ...

Страница 6: ...TER MODE 1 MODE key 1a In the Measure mode this key will switch the display in sequence from pH Temperature ORP absolute mV ORP relative mV and back to pH again 1b In the Calibration Setting mode pressing this key for three seconds will move you back to the previous parameter in the case when recalibration resetting is required ...

Страница 7: ...Calibration mode 3 DOWN key 3a In the Calibration mode pressing this key will show the next possible option In the Setting mode pressing this key will show the next possible option and decreases 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...

Страница 8: ...CAL 6 86 7 00 ATC MAN pH 1 2 3 4 5 12 11 10 9 8 7 6 C mA 1 Major LCD display 2 CAL This icon will be displayed if the meter is in the Calibration Setting mode 3 mA This icon when displayed indicate in the 4 mA or 20mA Setting mode 4 Temperature and unit display ...

Страница 9: ...will blink before Buffer 2 calibration The icon will stay on while Buffer 2 is being calibrated 8 6 86 The 6 86 buffer group 6 86 4 00 9 18 9 7 00 The 7 00 buffer group 7 00 4 01 10 01 10 ATC This icon will be displayed when a temperature probe is connected 11 MAN This icon will be displayed when a temperature probe is not connected 12 RmV Unit indicator ...

Страница 10: ...e AC line to the rear of the instrument The model 3631 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 Set the proper load to the 4 20mA output connector Make sure that the load impedance is less than 500 Ohms ...

Страница 11: ... before wiring your probes etc 2 Make sure you connect the AC power cord to the correct AC terminals Connecting incorrectly may damage the unit permanently E Measure mode Turning on the unit will always display the Measure mode This instrument is designed to provide 4 distinct measurements 7 00 ATC pH ATC C mV RmV MODE MODE MODE MODE ...

Страница 12: ...e at the RmV calibration will be added to the ORP absolute value to display the ORP relative value Note ORP relative value range ORP absolute value 1000mV to ORP absolute value 1000mV Pressing MODE key in the Measure mode will cycle the display from the four 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 compensa...

Страница 13: ...0k ohm 02 Resistor PT1000 03 Manual modes above Select the preferred temperature compensation mode press ENTER key to save and enter the next setting screen 2 pH buffer 1 select Pressing UP key or DOWN key in this screen will cycle the display from 7 00 6 86 buffer above Select the preferred buffer press ENTER key to save and enter the next setting screen ...

Страница 14: ...ENTER ENTER ENTER CAL 6 86 pH CAL 7 00 pH 3 pH buffer 2 select Pressing UP key or DOWN key in this screen will cycle the display from 4 01 10 01 or 4 00 9 18 buffer above Select the preferred buffer press ENTER key to save and enter the next setting screen ...

Страница 15: ...ffer 2 is either 4 01 or 10 01 if select 7 00 buffer at pH buffer 1 select screen The pH buffer 2 is either 4 00 or 9 18 if select 6 86 buffer at pH buffer 1 select screen 4 mA output parameters select Pressing UP key or DOWN key in this screen will cycle the display from pH ORP mV ORP RmV modes above Select the preferred mode press ENTER key to save and enter the next setting screen ...

Страница 16: ... 4mA output setting ENTER ENTER ENTER ENTER RmV CAL CAL pH mV CAL Note The mA output will work with the choice of parameters 5 4 mA output setting mA output parameters select 20mA output setting ENTER ENTER CAL CAL mA pH ...

Страница 17: ...put Pressing ENTER key to save and enter the next setting screen 6 20mA output setting 4mA output setting Measure mode ENTER ENTER CAL CAL mA pH Pressing UP key or DOWN key in this screen to adjust the 20 mA value this value is used for scaling the 4 20mA analog output Pressing ENTER key to save and goes to the Measure mode ...

Страница 18: ...o the pH Calibration mode 1 Buffer 1 STAND calibration Buffer 2 calibration ENTER ENTER STAND CAL 7 00 pH STAND SLOPE 7 00 pH HI2 STAND CAL 7 00 pH Enter into the pH calibration mode the STAND icon will flash the unit is ready to be standardized at the first buffer Rinse the pH and ATC Temp probes in distilled water and immerse them in the first buffer solution either 7 00 or 6 86 Allow temperatur...

Страница 19: ...immerse them in the second buffer solution either 4 00 4 01 or 9 18 10 01 Allow temperature reading to stabilize then press ENTER key to calibrate The pH icon will flash until the unit detects a stable reading Once the unit calibrates the second point and the unit will automatically exit the Calibration mode and goes to the pH Measure mode Dual point calibration is complete ENTER Buffer 1 calibrat...

Страница 20: ... in the Manual temperature compensation mode to adjust the value to that of the test solution temperature Then calibrate buffer 1 and buffer 2 H RmV Calibration mode Rmv normal mode or CAL RmV CAL RmV RmV ENTER The model 3631 uses 1 point calibration for RmV In the RmV Measure mode pressing UP key and ENTER key at the same time the meter will enter into RmV calibration mode ...

Страница 21: ... and the unit will automatically switch to the ORP relative mV Measure mode Note When the ORP absolute mV reading is off recalibrate RmV value I 4 20 mA output 1 Isolation voltage The maximum isolation voltage of the 4 20mA output contacts is 500 VDC The voltage differential between the 4 20mA output contacts and the load should not exceed 500 VDC 2 Output load The maximum load is 500 ohm Output c...

Страница 22: ...s anytime by changing option at the Calibration Setting mode screen The analog output will be restricted on the 4 mA setting 20 mA setting and the current bound display 4mA 20mA Adjustable Bandwidth set point Decreasing current for increasing pH or ORP set point Increasing current for increasing pH or ORP pH ORP 4mA 20mA pH ORP Adjustable Bandwidth ...

Страница 23: ... mA output analog output D current bound display U4mA user setting for 4 mA for current bound display U20mA user setting for 20 mA for current bound display Note 1 The ideal range of U4mA and U20mA for pH is 2 00 to 16 00 pH 2 The ideal range of U4mA and U20mA for absolute mV is 2000 to 2000 mV 3 The ideal range of U4mA and U20mA for relative mV is 3000 to 3000 mV ...

Страница 24: ... s Action s OvEr 10 0 120 0 C pH measure mode pH 16 00pH Recalibrate Undr 10 0 120 0 C pH measure mode pH 2 00pH Recalibrate OvEr OvEr pH measure mode a Temperature 120 0 C Bring buffer solution to lower temperature Replace temperature probe b No temperature sensor Adjust the manual temperature to 10 120 C ...

Страница 25: ...re probe b No temperature sensor Adjust the manual temperature to 10 120 C OvEr Temperature reading Absolute ORP mV or relative ORP Absolute ORP mV 1999 mV Bring solution to a lower ORP reading Undr Temperature reading Absolute ORP mV or relative ORP Absolute ORP mV 1999 mV Bring solution to a higher ORP reading ...

Страница 26: ...emperature Replace temperature probe b No temperature sensor Adjust the manual temperature to 10 120 C ORP reading Uder Absolute ORP mV or relative ORP a Temperature 10 0 C Bring buffer solution to higher temperature Replace temperature probe b No temperature sensor Adjust the manual temperature to 10 120 C ...

Страница 27: ...ration mode Buffer 1 STAND 7 00 b pH calibration mode Buffer 1 STAND 6 86 c pH calibration mode Buffer 2 SLOPE a Offset 100 or 100 mV b Offset 91 7 or 108 3 mV c Slope ideal mV by 30 Use a new buffer solution Replace electrode ...

Страница 28: ... instrument must exhibit the same temperature characteristics as the stored values C 4 00 6 86 9 18 4 01 7 00 10 01 0 4 01 6 98 9 46 4 01 7 11 10 32 5 4 00 6 95 9 39 4 01 7 08 10 25 10 4 00 6 92 9 33 4 00 7 06 10 18 15 4 00 6 90 9 28 4 00 7 03 10 12 20 4 00 6 88 9 23 4 00 7 01 10 06 25 4 00 6 86 9 18 4 01 7 00 10 01 30 4 01 6 85 9 14 4 01 6 98 9 97 35 4 02 6 84 9 10 4 02 6 98 9 93 ...

Страница 29: ...6 97 9 89 45 4 04 6 83 9 04 4 04 6 97 9 86 50 4 06 6 83 9 02 4 06 6 97 9 83 55 4 07 6 83 8 99 4 08 6 97 9 80 60 4 09 6 84 8 97 4 10 6 98 9 78 Note The actual reading of the instrument can differ from the values shown by 0 01 pH ...

Страница 30: ...t ORP Relative mV 2999 to 2999 mV 1 mV 0 1 1 digit Temperature 10 0 to 120 0 C 0 1 C 0 3 C pH Recognized pH buffers US 4 01 7 00 10 01 or NIST 4 00 6 86 9 18 pH Temperature compensation Manual Auto 10 0 C to 120 0 C pH Buffer Temperature range 0 0 C to 60 0 C pH Electrode Offset recognition 100 mV at pH 7 00 108 3 mV 91 7 mV at pH 6 86 ...

Страница 31: ...erature Temperature sensor Thermistor 10k ohm at 25 C User selectable Resistor PT1000 or Manual 4 20 mA output Current output range 4 to 20 mA isolated Current output scale user programmable Maximum load 500 ohm Accuracy 0 03 mA Isolation voltage 500VDC General Keys Audio feedback in all keys Power 100VAC to 240VAC 50 60Hz ...

Страница 32: ...eturn freight prepaid and the correction of the defect will be made free of charge 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 Out of warranty products will be repaired on a charge basis RETURN OF ITEMS Aut...

Страница 33: ...ent damage in shipment and insured against possible damage or loss Jenco will not be responsible for damage resulting from careless or insufficient packing A fee will be charged on all authorized returns Note Jenco reserves the right to make improvements in design construction and appearance of our products without notice ...

Страница 34: ...ncoi com Website www jencoi com Jenco Electronics Inc 1F NO 11 Lane 370 Sec 6 Zhongxiao E Rd Nangang Dist Taipei Taiwan TEL 886 2 2782 3226 FAX 886 2 2782 3234 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 jencos jenco com cn Website www jenco com cn ...

Страница 35: ...34 英文说明书机型 3631 编制人汪蕾日期 2012 03 17 文件编号 K3631 01 修改人汪蕾日期 2012 08 27 版本 01 核准人日期 ...

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