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OPERATION MANUAL
JENCO MODEL 6173
MICROCOMPUTER BASED
pH/mV/Temperature
BENCH METER
JENCO INSTRUMENTS, INC.
7968 ARJONS DR., SUITE C
SAN DIEGO, CA 92126
TEL: (858) 578-2828
FAX: (858) 578-2886
E-Mail:jencoi@ix.netcom.com
SHANGHAI JENCO ELECTRONICS, LTD.
18 WANGDONG ZHONG ROAD,SIJING,
SONGJING,SHANGHAI,CHINA,20160
TEL: 86-215-761-9599
FAX: 86-215-761-9598
E-Mail:jenco@public.sta.net.cn
WEBSITE : http://www.jenco.com.cn
JENCO ELECTRONICS, LTD.
P.O. BOX LINKOU-117
TAIPEI HSIEN, TAIWAN,R.O.C.
TEL: (886-2)2601-6191
FAX: (886-2)2601-7206
E-Mail:jencoe@ms2.hinet.net
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Summary of Contents for JENCO 6173
- Page 1 OPERATION MANUAL JENCO MODEL 6173 MICROCOMPUTER BASED pH/mV/Temperature BENCH METER JENCO INSTRUMENTS, INC. JENCO ELECTRONICS, LTD. 7968 ARJONS DR., SUITE C P.O. BOX LINKOU-117 SAN DIEGO, CA 92126 TAIPEI HSIEN, TAIWAN,R.O.C. TEL: (858) 578-2828 TEL: (886-2)2601-6191 FAX: (858) 578-2886 FAX: (886-2)2601-7206 E-Mail:jencoi@ix.netcom.com...
- Page 2 This enables the instrument to automatically sense the end point and "lock" the reading to indicate the end point value of a measurement. The 6173 can also be used in the non-AUTOLOCK mode. The AUTOLOCK and the user prompting features help eliminate...
- Page 3 6173 uses electrodes with connectors and interchangeable ATC ( Automatic Temperature Compensation ) / Temperature probes. Other features include electrode offset recognition, electrode slope recognition, electrode efficiency display, built buffer coefficients, automatic manual temperature compensation. BATTERIES REPLACEMENT F ollow the procedures to replace the internal batteries.
- Page 4 TURNING ON/OFF THE INSTRUMENT When the instrument is not in use, press the ON/OFF key to turn off the instrument. Unplugging the AC adaptor from the instrument or from the AC line does not turn off the instrument. It would automatically switch to the internal batteries.
- Page 5 15.25.0 ：Second LCD display 16.℃ ：Temperature unit KEY FUNCTIONS OF THE MODEL 6173 Figure3 1. [MODE] key : The [MODE] key selects the parameters to be displayed. Pressing the [MODE] key changes the display sequentially to display : pH-AUTOLOCK , mV-AUTOLOCK , pH and mV.
- Page 6 2.&3. [STAND] and [SLOPE] keys：The [STAND] and [SLOPE] keys are used for dual point pH calibration of the instrument. Pressing and holding the [STAND] key while turning on the power ,will chang the buffer set to the other available buffer set. 4.[MEA./EFF.] key ：a.
- Page 7 CONNECTOR Figure 4 1.RS-232 connector 2. AC adaptor input connector 3.ATC connector 4. Ref. Input connector 5.pH/ORP connector OPERATIONAL PROCEDURES BUFFER TABLE SELECT There are two sets of buffer available for this unit : 4.01,7.00, 10.01pH and 4.00,6.86, 9.18pH. You can change the buffer set by turning off the unit then press and hold the [STAND] key as you turn on the unit again.
- Page 8 1. Calibration with an ATC/Temp probe in the pH-AUTOLOCK mode. 1.1 Connect the pH electrode to the BNC connector and the ATC/Temp probe to the ATC/Temp connector of the instrument. The ATC annunciator on the LCD will be on. Press the [MODE] key if necessary to go to pH-AUTOLOCK mode.
- Page 9 locked to the second buffer value corresponding to the temperature of the second buffer. When a stable reading is reached, the WAIT annunciator will stop flashing and stay off. The instrument will calculate and compensate for the pH electrode slope deviation corresponding to the values of the two calibration buffers.
- Page 10 completed and the instrument is ready to be sloped at a second buffer. Allow sufficient time for the electrode and ATC/Temp probe to stabilize before taking any action. 2.4 Remove the pH electrode from buffer 7.00 (or 6.86), rinse with distilled water and immerse it in buffer 4.00(4.01) or 9.18(10.01).
- Page 11 probe to stabilize. Press the [STAND] key. The STAND annunciator will be on and the SLOPE annunciator will flash, indicating that standardization at buffer 7.00 (6.86) is completed and the instrument is ready to be sloped at a second buffer. The instrument will display the buffer value corresponding to the temperature of the buffer 7.00(6.86) as measured in 3.2.
- Page 12 instrument. The MAN annunciator will be on. Press the [MODE] key for the LCD to indicate pH and for the AUTO annunciator to be off. 4.2 Rinse the pH electrode in distilled water and immerse in buffer 7.00(6.86). Set the instrument to display the temperature of the buffer by pressing the [ ∆...
- Page 13 of the two calibration buffers. The instrument is now dual point calibrated and ready for measurements. After two point calibration, pressing and holding the [MEA./EFF.] key for about 5 seconds will display the new electrode efficiency. pH MEASUREMENTS The STAND and SLOPE annunciators must be on. This means that the instrument is dual point calibrated and is ready for measurements.
- Page 14 1.5 For samples that inherently unstable, instrument will not AUTOLOCK. In this case, use the pH NON-AUTOLOCK mode for measurements. 2. Measurement with ATC/Temp probe in the pH NON-AUTOLOCK mode. 2.1 Connect the pH electrode and the ATC/Temp probe to the connector of the instrument.
- Page 15 4.4 Allow sufficient time for the display to stabilize. The instrument will display the pH value of the sample at the set sample temperature. TEMPEARTURE MEASUREMENTS model 6173 used measure temperature independently with the ATC/Temp probe without using the pH electrode.
- Page 16 disappear and the correct temperature reading will be displayed. It is not necessary to press the [CLEAR] key. mV MEASUREMENTS 1. Measurement in the mV-AUTOLOCK mode. 1.1 Connect the optional combination ORP electrode to the BNC connector of instrument. 1.2 Press the [MODE] key for the LCD to indicate mV and for the AUTO annunciator to be on.
- Page 17 1.6 For samples that inherently unstable, instrument will not autolock. In this case, use the mV NON-AUTOLOCK mode for measurements. 2. Measurement in the mV NON-AUTOLOCK mode. 2.1 Connect an ORP electrode to the BNC connector of instrument. 2.2 Press the [MODE] key for the LCD to indicate mV and for the AUTO annunciator to be off.
- Page 18 Temperature coefficient of the pH buffers ℃ 4.00 6.86 9.18 4.01 7.00 10.01 4.01 6.98 9.46 4.01 7.11 10.32 4.00 6.95 9.39 4.01 7.08 10.25 4.00 6.92 9.33 4.00 7.06 10.18 4.00 6.90 9.28 4.00 7.03 10.12 4.00 6.88 9.23 4.00 7.01 10.06...
- Page 19 (Batteries included) WARRANTY Jenco Instruments, Inc. warranties the model 6173 for a period of one year, from date of purchase, against all defects in material and workmanship. This warranty does not apply to the abuse and misuse of the instrument. If repair or adjustment is required, please return the defective instrument, freight prepaid.