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Pulse Instruments AP210 Instruction Manual

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AP210
Instruction Manual
(800) 462-1926
support@pulseinstrument.com

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Summary of Contents for Pulse Instruments AP210

  • Page 1 AP210 Instruction Manual (800) 462-1926 support@pulseinstrument.com...
  • Page 2 CONTENTS Page I. INITIAL INSPECTION and ASSEMBLY II. GENERAL INTRODUCTION III.USING THE AP210 MODEL A.FRONT PANEL B.LCD SCREEN C.REAR CONNECTORS D.TURNING ON/OFF THE INSTRUMENT IV. MODEL AP210 MODES A.MAIN DISPLAY MODE B.CALIBRATION/SETTING MODE a. PASSWORD CHECK b. CALIBRATION/ SETTING SELECT 1.
  • Page 3 B.OUTPUT LOAD C.LINEAR ANALOG OUTPUT VII.RS485 INTERFACE OPERATION A.INTRODUCTION B.PREPARING THE METER VIII.ERROR DISPLAYS AND TROUBLESHOOTING IX. pH BUFFERS X. SPECIFICATIONS XI. WARRANTY XII.RETURN OF ITEMS XIII.KEYBOARD FLOWCHARTS A.pH MODE B.ABS mV MODE C.REL mV MODE XIV.AP210 CONTROLLER RELAY SETTINGS...
  • Page 4 I. INITIAL INSPECTION and ASSEMBLY Carefully unpack the instrument and accessories. Inspect for damages made in shipment. If any damage is found, notify your Cole-Parmer representative immediately. All packing materials should be saved until satisfactory operation is confirmed. MOUNTING PROCEDURE 1.
  • Page 5 4-20mA analog output, offset and span configurable for the pH or ORP display. The model AP210 comes with a RS485 in terface that can easily let the user log all data (from multiple model AP210 or other Pulse Instruments Models with ©...
  • Page 6 III. USING THE PULSE INSTRUMENTS AP210 A. FRONT PANEL 1. The [MODE] key. 1a. In MAIN display mode this key will switch the display from pH, ORP absolute mV, ORP relative mV, CAL and back to pH display again. 1b. In the PASSWORD CHECK...
  • Page 7 3. The [ ] UP key. In CALibration mode where the user can change the settings, this key will show the next possible option. If in decade number format this key will increment the digit. 4. The [ ] DOWN key. 4a.
  • Page 8 B. LCD SCREEN 1. MAJOR LCD DISPLAY 2. S.P. annunciator– Set Point, this will turn ON while changing /viewing the RELAY 1- RELAY 4 settings. 3. 4mA & 20mA annunciators – the respective annunciator will turn ON while in the 4 mA or 20 mA setting mode. 4.
  • Page 9 8. mA annunciator – this annunciator will turn ON if the user is in 4mA or 20mA setting. 9. ID annunciator – this annunciator will turn ON if the user is in ID (RS485 address) setting. 10. LOCK annunciator – this annunciator will turn ON if the unit PASSWORD LOCKED.
  • Page 10 Before connecting the probes, relays, analog output, RS485 and power cord be sure that you are inserting to the right terminal as shown above. Remember that the unit is ON once the user plugs in the power cord to an AC power supply. 1.
  • Page 11 D. TURNING ON/OFF THE INSTRUMENT By just plugging the unit to a correct AC voltage the unit will be ready for use. There is no Power key so unplugging or plugging the unit will turn OFF or turn ON the unit respectively.
  • Page 12 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. IV. MODEL AP210 A. MAIN DISPLAY MODE Turning ON the unit will always display MAIN display mode.
  • Page 13 B. CALIBRATION/SETTING MODE CALIBRATION MODE Pressing the [OK] key at the CAL mode will bring-up the PASSWORD CHECK display if the unit is LOCKED. If the unit is not locked, the unit will skip the PASSWORD CHECK screen and go directly to CALIBRATION SELECT screen.
  • Page 14 This screen will let the user select only one (pH, ABS. mV or REL. mV) mode that will control the relay1 - relay4 and mA output. This screen will always default to the last CALIBRATION/ SETTING SELECT you chose, so for most application you don’t need to change this selection once you decide what reading to use.
  • Page 15 iii. pH BUFFER II SELECT screen This screen selects the buffer for slope calibration. The user can select “1.68pH”, “4.00pH”, “4.01pH”, “9.18pH”, “10.01pH” or “12.46pH”. Press the [ ] or [ ] keys to select the buffer then the [OK] key to save your selection.
  • Page 16 vi. EFFICIENCY INFORMATION screen This screen will display the efficiency of the pH electrode from its last calibration. This WAIT screen is for user information only and will automatically change to the 4mA setting after 4 seconds. The equation of Efficiency is: Efficiency = (new slope/ ideal slope) x 100%.
  • Page 17 10. Press the [OK] key to save the STAND calibration and prepare to do a SLOPE calibration OR press the [ ] key to recalibrate buffer 1 and see step 9. If “OVEr”(OVER) or “Undr”(UNDER) (See chapter VIII. ERROR DISPLAYS AND TROUBLESHOOTING) is displayed or a blinking “SAVE”...
  • Page 18 viii. 20 mA SETTING screen This screen will let the user change the 20 mA value. The user can use [ ], [ ], [ ] or [OK] keys to input new 20mA value. This value is used for scaling the 4-20mA ANALOG OUTPUT.
  • Page 19 xii. PASSWORD SETTING This screen selects the password number LOCK for this unit. The user can use [ ], [ ] or [ ] keys to input the new password. Pressing the [OK] key will save the password number and LOCKS the unit. You will not be able change any setting or turn- on the wash relay unless a correct 4-digit number is selected in the PASSWORD...
  • Page 20 ii. 4mA SETTING screen This screen will let the user change the 4 mA value. The user can use [ ], [ ], [ ] or [OK] keys to input new 4mA value. This value is used for scaling the 4-20mA ANALOG OUTPUT.
  • Page 21 v. RELAY 5 (WASH) ON TIME SETTING This screen selects the ON TIME delay in MINUTES:SECONDS for the RELAY 5. The user can use [ ], [ ], [ ] or [OK] keys to input the new ON time. You can only turn-ON the WASH relay if the unit is UNLOCKED.
  • Page 22 3. ACTIVE “REL” If the user selected “pH”, please the previous section 1. ACTIVE “pH” (at page 13). If the user selected “ABS”, please see the previous section 2. ACTIVE “ABS” (at page 19). i. TEMPERATURE PROBE SELECT screen THERMISTOR(10K) RESISTOR(3K) Pt-1000(1k) This screen will let the user select what temperature probe (10K...
  • Page 23 iii. 4mA SETTING screen This screen will let the user change the 4 mA value. This value is used for scaling the 4-20mA ANALOG OUTPUT. (See chapter VI. 4-20 mA OUTPUT.) iv. 20mA SETTING screen This screen will let the user change the 20 mA value.
  • Page 24 vi. RELAY 5 (WASH) ON TIME SETTING This screen selects the ON TIME delay in MINUTES: SECONDS for the RELAY 5. The [ ], [ ], [ ] user can use or [OK] keys to input the new ON time. You can only turn-ON the WASH relay if the unit is UNLOCKED.
  • Page 25 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 26 HIGH POINT POINT hysteresis hysteresis High set ON/OFF control Low set ON/OFF control The figure above shows how the relays react to user set point, hysteresis and reading. Note: 1. The ideal set point range for pH is 0.00 to 16.00 pH. 2.
  • Page 27 C. LINEAR ANALOG OUPUT 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 SELECT screen. The analog output will be restricted on the 4 mA setting, 20 mA setting and the current bound display.
  • Page 28 VII. RS485 INTERFACE OPERATION A. INTRODUCTION This section assumes you are familiar with the basics of computer programming, data communication, the RS485 interface and possess a copy of any programming language software capable of interfacing with a RS485 card or a RS232-RS485 converter (third party vendor) module.
  • Page 29 MAJOR MINOR LCD DISPLAY Possible cause(s) display unit [Action(s)] display "OVEr" -10.0~ pH>16.00 . 120.0°C [Recalibrate.] "OVEr" 0.0 ~ 60.0°C pH-Cal pH>16.00. [Use a new buffer solution.] [Replace the electrode.] "OVEr" 0.0 ~ 60.0°C a.pH-Cal-STAND a. Offset>100mV buffer 7.00pH b.pH-Cal-STAND b.
  • Page 30 “bAd” During power-on Unit has failed its EEPROM test. “EEP” [Turn instrument OFF and back to ON again.] [Return service. (see Warranty)] “rO-“ “bAd” During power-on Unit has failed its ROM test. [Turn instrument OFF and back to ON again.] [Return service.
  • Page 31 Note: The actual reading of the instrument can differ from the values shown by ±0.01 pH. X. SPECIFICATIONS Mode Range Resolution Accuracy -2.00 to 16.00 pH 0.01 pH ±0.1% of rdg ± 1 LSD ORP Absolute mV -2500 to 2500 mV 1 mV ±0.1% of rdg±...
  • Page 32 Contact Pulse Instruments for troubleshooting support, replacement parts, and service. If a controller is not functioning properly, circuit boards may be available for exchange after the problem has been isolated. Pulse Instruments will provide a Return Material Authorization (RMA) number for any products being returned to the factory for repair.
  • Page 33 XIII. KEYBOARD FLOWCHARTS A. pH MODE pH MODE (NORMAL MODE) ABSolute mV MODE CALIBRATION MODE RELative mV MODE PASSWORD pH SETTING REL mV SETTING ABS mV SETTING CHECK ? (if user selects pH mode) OK (To last ATC select) & OK) RESISTOR(3K) RELAY 4 SETTING THERMISTOR(10K)
  • Page 34 B. ABS mV MODE...
  • Page 35 C. REL mV MODE...
  • Page 36 AP210 Controller Relay Settings pH Settings Relay Name Set Point Force Direction DeadBand Relay 1 Acid 7.0 pH High 1 Relay 2 Low Alarm 5.5 pH Low 2 Relay 3 High Alarm 8.5 pH High 3 Relay 4 Not Used 0.0 pH...