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Summary of Contents for ABB 8232
- Page 1 Ion-Selective Electrode Monitor Instruction Manual IM/8232–SO1_2 Model 8232 Ammonia Monitor Special Range 0.05 to 2000 mg l –1...
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Page 2: Electrical Safety
We are an established world force in the design and manufacture of instrumentation for industrial process control, flow measurement, gas and liquid analysis and environmental applications. Cert. No. Q05907 As a part of ABB, a world leader in process automation technology, we offer customers application expertise, service and support worldwide. EN 29001 (ISO 9001) We are committed to teamwork, high quality manufacturing, advanced technology and unrivalled service and support. -
Page 3: Table Of Contents
CONTENTS Section Page Section Page INTRODUCTION ............2 CALIBRATION ............28 Description ............2 Calibration Sequence ........28 Training .............. 2 MAINTENANCE ............29 Location and Function Chemistry ............29 of Main Components ......... 2 8.1.1 Reagent Solutions ......29 INSTALLATION ............ -
Page 4: Introduction
1.1 Description understood steps. The sample is presented from the user's The Model 8232 Ammonia Monitor is a microprocessor based pipework to a constant head unit and any excess is allowed to analyser using an ABB ammonia ion-selective probe. This overflow. -
Page 5: Installation
2 INSTALLATION 2.1 Accessories 2.4 Sampling Requirement 2 x reagent bottles 1 x ammonia probe kit In addition to being as close as possible to the monitor, the 4 x calibration bottles 1 x spares kit sampling point must provide thoroughly mixed representative sample. -
Page 6: External Electrical Connections
…2 INSTALLATION 2.6 External Electrical Connections – Fig. 2.3 The connections are as follows: a) Mains input 115 V or 240 V. The mains voltage is selected Warning. by means of the voltage selector – see Fig. 2.3. • Although certain instruments are fitted with internal fuse protection, a suitably rated external protection device, b) Current outputs 1 and 2 –... -
Page 7: Relay Contact Protection And Interference Suppression
2 INSTALLATION… 2.7 Relay Contact Protection and Interference (part no. B9303) as shown in Fig. 2.5A. If the instrument Suppression – Fig. 2.5 malfunctions the value of the RC network is too low for If the relays are used to switch loads on or off the relay suppression and an alternative value must be used. -
Page 8: Setting Up
3 SETTING UP …2 INSTALLATION Note. Before proceeding any further, ensure that all switches are set to OFF on the right hand side of the electronics unit – see Fig. 2.3. a) Ensure that external electrical plumbing connections have been made correctly. 0 to 1mA 0 to 10mA 0 to 20mA... -
Page 9: Liquid Handling Section
4 LIQUID HANDLING SECTION 4.1 Principle of Operation – Fig. 4.1 The monitor uses an ABB Ammonia Probe. This contains a glass pH electrode, whose pH-sensitive glass membrane forms a slightly convex tip, and a robust, long-life reference electrode. The two electrodes are combined into a single assembly, and are connected as a pH measuring pair through an internal reservoir of filling solution containing ammonium ions. -
Page 10: General Operation
5 ELECTRONICS SECTION …4 LIQUID HANDLING SECTION 4.2 General Operation – Fig. 4.2 5.1 Electronic Layout – Fig. 5.1 The sequence of events is: The electronic section comprises two separate sections: a) The sample enters the constant head unit from below and any excess is allowed to overflow to drain. -
Page 11: Front Panel Controls
5 ELECTRONICS SECTION 5.4 Front Panel Controls – Fig. 5.2 The programme controls comprise eight tactile membrane 20-character Alarm and Status 5-digit Display switches. These switches are situated behind a hinged door Dot-Matrix Display L.E.D.s (Concentration) below the display, access is via a screwdriver-operated catch. In normal operation the switches are used to view the measured ion concentration value, initiate a manual calibration, or to activate the 'alarm hold' facility. -
Page 12: Programming
6 PROGRAMMING... -
Page 13: Normal Operation
6 PROGRAMMING… 6.1 Normal Operation 6.2 Programming Pages In normal operation (Operating Page 1) the lower, dot matrix, Operation of the switch enables a series of 'programming' display gives indication of the units of measurement, millivolt pages to be displayed. Unauthorised entries to this page are value, sensor slope and time. -
Page 14: Operating
…6 PROGRAMMING 6.2.1 Operating Page 1 The values displayed in Operating Page 1 are for viewing only and cannot be altered in this page. Measurement Units Nitrate <Unit> The measurement units are displayed, e.g. Ammonia ppm. Advance to next parameter. Mode Sensor Output •... -
Page 15: Operating
6 PROGRAMMING… 6.2.2 Operating Page 2 To gain access to the Calibration Page (Operating Page 2), operate the switch. Enable Automatic Calibrations Enable Auto Cals Yes Select 'Yes' to enable or 'No' to disable the automatic calibrations. Store. Enter Advance to next parameter. Page header. -
Page 16: Security Code Page
…6 PROGRAMMING …6.2.2 Operating Page 2 Continued from previous page. Calibrating Standard 2 Calibrating Std 2 The upper display shows the ammonia concentration value. The display remains until a stable output is obtained from the probe. Toggle between the two displays. Electrode Millivolts –... -
Page 17: Set Up Input Page
6 PROGRAMMING… 6.2.4 Set Up Input Page Page header. SET UP INPUT Advance to next parameter. Control Temperature Control Temp – – – °C • Set the required block control temperature within the range 5 to 45 °C in 0.1 °C increments. -
Page 18: Current Output Page
…6 PROGRAMMING 6.2.5 Current Output Page The current output is assigned to the ammonia concentration but is only operative if the relevant output modules are fitted – see Fig. 2.4. Page header. CURRENT OUTPUT Advance to next parameter. Output 1 Calibration Hold OP1 Cal Hold Current Output 1 can be held during calibration, if required. - Page 19 6 PROGRAMMING… …6.2.5 Current Output Page Continued from previous page. Output 2 Calibration Hold OP2 Cal Hold Current Output 2 can be held during calibration, if required. Select 'YES' or 'NO'. Store. Enter Advance to next parameter. Output 2 Law OP2 Law Current Output 2 can be either logarithmic or linear.
- Page 20 …6 PROGRAMMING …6.2.5 Current Output Page Continued from previous page. Test Current Output Zeros Test Output Zeros The instrument automatically transmits a current output zero test signal on both outputs. Example – For a 4 to 20 mA current output range, 4 mA is transmitted. Advance to next parameter.
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Page 21: Set Up Alarms Page
6 PROGRAMMING… 6.2.6 Set Up Alarms Page Alarm l.e.d. indication and relay output can be assigned either to the ammonia concentration or switched off. Page header. SET UP ALARMS Advance to next parameter. Alarm A1 Enable A1 Enabled Select 'YES' to enable or 'NO' to disable. Store. - Page 22 …6 PROGRAMMING …6.2.6 Set Up Alarms Page Continued from Previous page. A1 Setpoint – – – – • A1 Setpoint Set the required setpoint value. Enter Store. Advance to next parameter. A2 Enabled A2 Enabled Repeat the programming procedures as for Alarm Relay 1. A2 Setpoint –...
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Page 23: Set Up Clock Page
6 PROGRAMMING… 6.2.7 Set Up Clock Page SET UP CLOCK Page header. Advance to next parameter. Set Up Real Time Clock Set Clock? Select 'Yes' to set up the clock, otherwise select 'No'. Store. Enter Advance to next parameter. Set Year –... - Page 24 …6 PROGRAMMING …6.2.7 Set Up Clock Page Continued from previous page. Set Minutes Set Minutes – – Set the appropriate minutes. Store. Enter Advance to next parameter. Set Seconds Set Seconds – – Set the appropriate seconds. Store. Enter Advance to next parameter. Flashing Calibration Date (day of the month) Cal Date...
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Page 25: Calibration User Code Page
6 PROGRAMMING… …6.2.7 Set Up Clock Page Continued from previous page. Flashing Calibration Time (hour – 24 hour clock) Cal Time HH:MM Set the hour of the day when the first automatic calibration is to be carried out. Store and advance to next parameter. Enter Flashing Calibration Time (minutes) -
Page 26: Set Up Temperature Control Page
…6 PROGRAMMING 6.2.9 Set Up Temperature Control Page The parameters within this page are factory preset and should not require any adjustment. Page header. SET UP TEMP. CONTROL Advance to next parameter. Cycle Time Cycle Time The cycle time is adjustable between 5 and 60 seconds in 1 second increments. Advance to next parameter. -
Page 27: Electrical Calibration Page
6 PROGRAMMING… 6.2.11 Electrical Calibration Page Page header. CALIBRATION Advance to next parameter. Millivolt Input Zero mV Zero – – – – Set the millivolt source to –400 mV. Set the display to '–400' mV. Store. New value is accepted only when input is stable. Enter Advance to next parameter. - Page 28 …6 PROGRAMMING …6.2.11 Electrical Calibration Page Continued from previous page. Adjust Current Output 1 Zero Adjust Output 1 Zero The monitor transmits a zero signal, e.g. for a 4 to 20 mA output range, 4 mA is transmitted. Set the milliammeter reading to the current output 1 zero level, i.e. 0 mA (zero- based ranges) or 4 mA (4 to 20 mA range).
- Page 29 6 PROGRAMMING …6.2.11 Electrical Calibration Page Continued from previous page. Calibration Time 1 Cal Time 1 10 m The displayed value is preset at the factory and must not be altered. See Table 7.1. Advance to next parameter. Calibration Time 2 Cal Time 2 10 m The displayed value is preset at the factory and must not be altered.
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Page 30: Calibration
7 CALIBRATION 7.1 Calibration Sequence On initiation of the calibration sequence, either manual or Calibration of the monitor is carried out by replacing the automatic, the 'Cal' l.e.d. is illuminated and the Calibration sample solution sequentially with two standard solutions of Mode relay is energised. -
Page 31: Maintenance
8 MAINTENANCE 8.1 Chemistry 8.1.2 Standard Solutions Neither ammonium ion content nor total ammonia can be Two standard solutions of known concentration appropriate to measured directly in an untreated sample, since the probe can the measuring range are required for calibration of the monitor. respond only to free ammonia gas. -
Page 32: Four Weekly
SV1 can be cleaned with the cleaning monitors and associated ABB Kent-Taylor Ultrafilters, if used. solution using the syringe. If severe, this growth may cause blockages in tubing or valves and/or fouling of flowcells and sensors. -
Page 33: Consumables Spares Kit
8 MAINTENANCE… 8.2.7 Assembling/Refurbishing the Probe Cleaning Solution Containers Great care should be taken to ensure that reagent and The ammonia probe is a gas sensing combination electrode standard solution containers thoroughly cleaned assembly. It is supplied in kit form and must be assembled or whenever their contents are changed, as algal growth can also refurbished using one of the appropriate procedures below: occur in them. -
Page 34: Peristaltic Pump
…8 MAINTENANCE …8.2.7 Assembling/Refurbishing the Probe 8.2.8 Peristaltic Pump – Fig. 8.2 Fitting the Probe – Fig. 8.1 It is recommended that the pump tubing and pump capstans, When the Ammonia Probe has been prepared for use in supplied in the Consumable Spares Kit, are replaced after one year of operation. - Page 35 8 MAINTENANCE… Remove the pump platen by applying Apply downward force. gentle downward force to the platen while turning the catch mechanism to the vertical position and pulling the catch forward. Lower the pump platen, only from directly above, on to the pump tubes until the catch mechanism locates in the hole in the case, and turn the catch lever to the horizontal position.
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Page 36: Shutdown Procedure
…8 MAINTENANCE 8.3 Shutdown Procedure d) Clean sample pipework both inside and outside the 8.3.1 Short Term monitor, constant head unit, and filtration system (if used). The monitor can be left with the power switched off for up to 24 hours without any detrimental effects. -
Page 37: Monitor Diagnostic Information
8 MAINTENANCE 8.4.2 Monitor Diagnostic Information b) Clean membrane by washing with a jet of clean water from Out of Service Alarm a wash–bottle or syringe. This alarm relay output is a normally energised relay which de- energises in the following circumstances: c) Check, and top up as necessary, the filling solution in the a) Loss of mains supply. -
Page 38: Reference Element
…8 MAINTENANCE Connect the electrodes to a pH meter and calibrate with pH c) If the element is not uniform in colour repeat the ammonia/ buffers in the usual way. The glass electrode may be found to nitric acid process. be somewhat slower in response than a conventional bulb–... -
Page 39: Specification
9 SPECIFICATION Range: ....Ammonia 0.05 to 2000 mg l –1 Concentration Alarm Adjustment: ... Programmable over range. Repeatability: ..±2% of reading. Concentration Alarm Reproducibility: ..±3% of reading. Differential: .... 0 to 5%. Response Time: ..Less than 10 minutes for 90% step Concentration Alarm change. -
Page 40: Spares List
10 SPARES LIST Consumable Spares Strategic Spares t i k c t i – ' e l t i c μ l i f n i l n i l t i k Refurbishment Spares – t i k c t i –... -
Page 41: Apendix A - Replacing Software Eprom
APENDIX A – REPLACING SOFTWARE EPROM A.2 Access the PCB – Fig. A.2 Warning. Switch off the monitor and electrically isolate it before carrying out the following steps. Unlock and open cover plate and hinge out to expose captive A.1 Access the Transmitter Unit – Fig. A.1 screws. -
Page 42: Removing The Pcb
…APPENDIX A A.3 Removing the PCB – Fig. A.3 Remove the four screws attaching the PCB to the assembly. Note that there are washers between the PCB cover and the PCB. Withdraw the PCB and turn it over to reveal the component side. Locate and change the EPROM IC1 –... -
Page 43: Customer Support
Service and Repair Centre. – Food & Beverage – Manufacturing United Kingdom – Metals and Minerals – Oil, Gas & Petrochemical ABB Limited – Pulp and Paper Tel: +44 (0)1453 826661 Fax: +44 (0)1453 829671 Drives and Motors United States of America •... - Page 44 ABB has Sales & Customer Support The Company’s policy is one of continuous product improvement and the right is reserved to modify the expertise in over 100 countries worldwide information contained herein without notice. www.abb.com Printed in UK (01.07) © ABB 2007 ABB Limited ABB Inc.