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JENCO 3631 Operation Manual - Lcd Screen

Manual is about: Based pH/ORP Transmitter

Summary of 3631

  • Page 1

    Operation manual model 3631 microcomputer based ph/orp transmitter jenco electronics, ltd. Manufacturer of precision instruments.

  • Page 2: Contents

    1 contents general introduction(((((((((((((((..(((....................2 initial inspection((...((((((..................................................................2 using the jenco model 3631((......................................................................3 a. Mounting procedure............

  • Page 3: General Introduction

    2 general introduction thank you for selecting the jenco model 3631. The 3631 ph/orp transmitter is a rugged microprocessor based instrument assembled in a watertight 1/8 din case, designed for use in laboratories and process control applications. The system displays ph or orp or temperature status ...

  • Page 4: Mounting Procedure

    3 using the jenco model 3631 erview a. Mounting procedure panel cutout dimensions 45.0 1.772" 92.0 3.622" 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 dr...

  • Page 5

    4 panel mounting brackets drawing 3 3. Replace the 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 im...

  • Page 6: Front Panel

    5 b. Front panel the front panel consists of a 4-digit lcd display and 4 keys. Ph/orp transmitter 3631 stand slope 7.00 atc ph enter 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...

  • Page 7

    6 2. [ up ] key: 2a. 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 increases the numeral increment. 2b. In the measure mode, pressing this key and [enter] key at the same time, the unit wil...

  • Page 8: Lcd Screen

    7 the user to the next setting. C. Lcd screen stand slope rmv cal 6.86 7.00 atc man ph 1 2 3 4 5 12 1 1 1 0 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...

  • Page 9

    8 5. Ph – unit indicator. 6. Stand – this icon will blink before buffer 1 calibration. The icon will stay on while buffer 1 is being calibrated. 7. Slope – this icon 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: 6.8...

  • Page 10: Rear Connectors

    9 d. Rear connectors 100~230vac l n e ma + - +v -v 10k th pt 1000 gnd input rff 1. Connect the 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 ...

  • Page 11: Measure Mode

    10 3. V+ (5vdc) and v- (5vdc) output to provide excitation voltage for ph/orp pre-amplifier only. 【 note 】 : (1) make sure that the power is unplugged 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 pe...

  • Page 12: Setting Mode

    11 1. Ph – the degree of acidity or alkalinity of the solution. 2. Temperature – current temperature of the solution. 3. Orp mv – a measurement of absolute orp mv. 4. Orp rmv– a measurement of relative orp mv. The offset value at the rmv calibration will be added to the orp absolute value to display...

  • Page 13

    12 +enter enter enter enter ph buffer 1 select cal atc cal atc cal man pressing [up] key or [down] key in this screen will cycle the display from 01 (thermistor: 10k ohm) 、 02 (resistor: pt1000) 、 03 (manual) modes above. Select the preferred temperature compensation mode, press [enter] key to save,...

  • Page 14

    13 temperature compensation select ph buffer 2 select 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 en...

  • Page 15

    14 buffer 1 7.00 ma output parameters select enter cal 7.00 ph cal 7.00 ph enter enter buffer 2 6.86 ma output parameters select enter enter enter cal 6.86 ph cal 6.86 ph 【 note 】 : the ph buffer 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 ...

  • Page 16

    15 buffer 2 select 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.

  • Page 17

    16 pressing [up] key or [down] key in this screen to adjust the 4 ma value, this value is used for scaling the 4-20ma analog output. 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...

  • Page 18: Ph Calibration Mode

    17 g. Ph calibration mode the model 3631 uses 2-point calibration for ph. The first point must be 6.86/7.00, and the second point can either be 4.00/4.01 or 9.18/ 10.01. In the ph measure mode, pressing [up] key and [enter] key at the same time to allow the meter to go to the ph calibration mode. 1....

  • Page 19

    18 icon will flash until the unit detects a stable reading. Once the unit calibrates the first point, the “slope” icon will flash. The unit is ready to be sloped at the second buffer. 2. Buffer 2 (slope) calibration: rinse the ph and atc/temp probe in distilled water and immerse them in the second b...

  • Page 20: Rmv Calibration Mode

    19 【 note 】 : in the setting mode (1. Temperature compensation select), select 03 (manual temperature compensation mode) if no temperature probe is being used. Press the [up] key or [down] key in the manual temperature compensation mode to adjust the value to that of the test solution temperature. T...

  • Page 21: 4-20 Ma Output

    20 rinse the orp probe in distilled water and immerse it in the orp standard solution, then press [up] or [down] key to adjust the orp value to that the orp standard. Press [enter] key to save. The unit beeps to indicate a successful calibration. Calibration is now complete and the unit will automat...

  • Page 22

    21 3. The analog output will produce a linear analog output. The user can only bind the analog output to one reading at a time. The user can change this 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 ...

  • Page 23

    22 the above figure shows the relationship between reading, u 4ma & u 20ma . The analog output is based on the following equation: ma(output) = 4ma+(16ma)*(d – u 4ma ) / (u20 ma - u 4ma ) where: ma(output) = analog output d = current bound display u 4ma = user setting for 4 ma for current bound disp...

  • Page 24

    23 error display and troubleshooting erview ph/orp display temperature display display mode possible cause(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 [recalibrate] "over" "over" ph measure mode a. Temperature > 120.0°c. [b...

  • Page 25

    24 "over" “undr” ph measure mode a. Temperature [bring buffer solution to higher temperature.] [replace temperature 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...

  • Page 26

    25 orp reading "over" absolute orp mv or relative orp 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.] orp reading "uder" absolute orp mv or relative orp a. Temperature [bring ...

  • Page 27

    26 "over" 0~60°c a. Ph calibration 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 mv b. Offset 108.3 mv c. Slope > ideal mv by 30% [use a new buffer solution.] [replace electrode.].

  • Page 28: Ph Buffers

    27 ph buffers the temperature characteristics of ph calibration buffers ph4.00, ph4.01, ph6.86, ph7.00, ph9.18 & ph10.01 are stored inside the instrument. The buffers used to calibrate the instrument must exhibit the same temperature characteristics as the stored values. °c 4.00 6.86 9.18 4.01 7.00 ...

  • Page 29

    28 40 4.03 6.84 9.07 4.03 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..

  • Page 30: Specifications

    29 specifications mode range resolution accuracy ph -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 n...

  • Page 31

    30 ph electrode slope recognition ± 30% at ph 4.00, 4.01, 9.18, 10.01 input impedance >10 12 calibration end point sensing yes temperature: 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) curre...

  • Page 32: Warranty

    31 ambient temperature range 0.0 to 50.0 °c case ip65, 1/8din case, depth 90mm weight 290 g 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 ...

  • Page 33

    32 number handy, including data regarding the reason for return. For your protection, items must be carefully packed to prevent 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 char...

  • Page 34

    33 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. 1f., no. 11, lane 370, sec. 6, zhongxiao e. Rd. Nangang dist., taipei, taiwan tel: 886-2-278...

  • Page 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：.