ATI Technologies Q46F/82 User manual

O & M Manual
Model Q46F/82
Direct Fluoride Monitor
Home Office European Office
Analytical Technology, Inc. ATI (UK) Limited
6 Iron Bridge Drive Unit 1 & 2 Gatehead Business Park
Collegeville, PA 19426 Delph New Road, Delph
Phone: [phone] Saddleworth OL3 5DE
610-917-0991 Phone: [phone]
Fax: [phone] Fax: + 44 (0)1457-874-468
Email: [email protected]om Email: [email protected]

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Table of Contents
PART 1 - INTRODUCTION..................................4
1.1 General.......................................................4
1.2 Q46F/82 System Specifications.................6
1.3 Q46F/82 Performance Specifications ........7
PART 2 –MECHANICAL INSTALLATION......8
2.1 General.......................................................8
2.2 Wall Mount Bracket ..................................9
2.3 Panel Mount, AC Powered Monitor ........11
2.4 Flowcell Mounting...................................12
2.5Fluoride Sensor........................................13
PART 3 –ELECTRICAL INSTALLATION......14
3.1 General.....................................................14
3.3 Q46F Sensor Wiring................................16
3.4 Relay Wiring............................................17
3.5 Low Power Relay Connection .................17
PART 4 –CONFIGURATION.............................18
4.1 User Interface...........................................18
4.11 Keys.....................................................19
4.12 Display.................................................19
4.2 Software...................................................20
4.21 Software Navigation...........................21
4.22 Measure Menu [MEASURE]...............23
4.23 Calibration Menu [CAL] .......................24
4.24 Configuration Menu [CONFIG] .........24
4.25 Control Menu [CONTROL] ...............26
4.26 Diagnostics Menu [DIAG].....................30
PART 5 –CALIBRATION...................................33
5.1 Calibration ...............................................33
5.11 Slope Adjustment.................................33
5.12 Single Point Calibration.......................34
5.2 Temperature Calibration..........................34
PART 6 –PID CONTROLLER DETAILS.........36
6.1 PID Description.......................................36
6.2 PID Algorithm .........................................36
6.3 Classical PID Tuning...............................38
6.4 Manual PID Override Control .................38
6.5 Common PID Pitfalls...............................38
PART 7 –SYSTEM MAINTENANCE ...............40
7.1 General.....................................................40
7.2 Analyzer Maintenance.............................40
7.3 Sensor Maintenance.................................40
PART 8 –TROUBLESHOOTING ......................41
8.1 General.....................................................41
8.2 External Sources of Problems..................41
8.3 Analyzer Tests .........................................41
8.4 Display Messages ....................................42
SPARE PARTS......................................................43

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Table of Figures
FIGURE 1–TYPICAL FLUORIDE MONITORING SYSTEM.......................................................................................5
FIGURE 2-Q46F ENCLOSURE DIMENSIONS .....................................................................................................9
FIGURE 3-WALL OR PIPE MOUNT BRACKET .....................................................................................................9
FIGURE 4-WALL MOUNTING DIAGRAM...........................................................................................................10
FIGURE 5-PIPE MOUNTING DIAGRAM ............................................................................................................10
FIGURE 6-PANEL MOUNT CUT-OUT ..............................................................................................................11
FIGURE 7-FLUORIDE FLOWCELL ...................................................................................................................12
FIGURE 8-FLUORIDE SENSOR.......................................................................................................................13
FIGURE 9-LINE POWER CONNECTION............................................................................................................15
FIGURE 10 -SENSOR AND CONTROL CONNECTION .........................................................................................16
FIGURE 11 -RELAY CONTACTS......................................................................................................................17
FIGURE 12 -USER INTERFACE .......................................................................................................................18
FIGURE 13 -SOFTWARE MAP.........................................................................................................................22
FIGURE 14 -CONTROL RELAY EXAMPLE.........................................................................................................29
FIGURE 15 -ALARM RELAY EXAMPLE.............................................................................................................29
FIGURE 16 -Q46 ISA PID EQUATION.............................................................................................................36
FIGURE 17 -Q46 DISPLAY MESSAGES ...........................................................................................................42

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Part 1 - Introduction
1.1 General
The Q46F/82 Direct Fluoride System is an on-line monitoring system designed for the continuous
measurement of fluoride ion in solution. The system is designed to measure fluoride ion directly
without the use of chemical buffers and is suitable for potable water systems with stable pH and
conductivity. It is especially useful for applications where the use of chemicals is undesirable.
The full scale operating range of the system may be selected by the user for 0-20.00 PPM, 0-
200.0 PPM, or 0-2000 PPM. The analog output signal may be spanned for smaller ranges within
the overall operating ranges. Because water is flowing through the flowcell at a low rate, this unit
cannot be exposed to temperatures below 0C.
The basic sensing element used in the monitor is a fluoride ion selective electrode (ISE). This
sensor contains a lanthanum fluoride crystal that generates a voltage proportional to the activity
of fluoride ion in solution. A silver/silver chloride reference electrode contained in the same
sensor body provides the second half of the measurement cell. Because ISE electrodes respond
to activity rather than concentration, the response is slightly affected by changes in sample pH
and conductivity, but these effects are quite small on samples from relatively stable water sources
such as well water.
The fluoride monitoring system includes 2 parts, an electronic display unit (panel or wall mount)
and a sensor/flowcell assembly. A typical fluoride system installation is shown in Figure 1. The
measured fluoride concentration is displayed on a backlit LCD on the front of the instrument. Two
4-20 mA outputs are provided for recording or data logging of fluoride concentration and
temperature. Alarm contacts are also standard in the electronic package and may be used either
for simple control schemes or for signaling operators of abnormal operating conditions.

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Figure 1 –Typical Fluoride Monitoring System

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1.2 Q46F/82 System Specifications
Displayed Parameters Main input, 0.01 ppm to 2000 ppm dissolved fluoride
Sensor mV
Sample Temperature
Loop current, 4.00 to 20.00 mA
Sensor slope & zero offset
Model number and software version
PID Controller Status
Main Parameter Ranges Manual selection of one of the following ranges,
0.00 to 20.00 ppm
0.0 to 200.0 ppm
0 to 2000 ppm
Display 0.75” (19.1 mm) high 4-digit main display with sign
12-digit secondary display, 0.3" (7.6 mm) 5x7 dot matrix.
Integral LED back-light for visibility in the dark.
Ambient Temperature Analyzer Service, 5 to 40°C (41 to 104ºF)
Storage, -5 to 70°C (-22 to 158ºF)
Ambient Humidity 0 to 95%, non-condensing.
EMI/RFI Influence Designed to EN 61326-1
Output Isolation 600 V galvanic isolation
Filter Adjustable 0-9.9 minutes additional damping to 90% step input
Sensor Combination F-/ Reference Ion Selective Electrode
Sensor Materials Glass, Lanthanum Fluoride, Ryton
Interconnect Cable 10 ft. (6.15 meter) standard
Q46F Power: 100-240 VAC ±10%, 50/60 Hz
Optional: 12-24 VDC
Q46F Enclosure: NEMA 4X, IP66, polycarbonate, stainless steel hardware
HWD: 4.9" (124 mm) x 4.9" (124 mm) x 5.5" (139 mm)
Flammability rating: UL 94 V-0
Mounting Options Wall mount bracket standard.
Panel mount adapter optional for Q46F Only
Relays, Electromechanical Three SPDT, 6 amp @ 250 VAC, 5 amp @ 24 VDC contacts.
Software selection for setpoint, phase, delay, deadband, hi-lo
alarm, and failsafe. A-B indicators on main LCD.
Low Power Relays: Three SPST, 1 amp @ 24 VDC. Software selection for
setpoint, phase, delay, deadband, hi-lo alarm, and failsafe.

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Analog Outputs Two 4-20 mA outputs. Output one programmable for PPM F-or
PID. Output 2 programmable for PPM or temperature.
Maximum load 500 Ohms for each output. Outputs ground
isolated and isolated from each other.
Digital Communications Profibus-DP, Modbus-RTU. More versions pending.
(Optional) See Q46 Digital Communications Manual for Specifications.
Sample Flowrate 1 GPH Minimum (60 ml/min.)
5 GPH Maximum (315 ml/min.)
Weight 4 lbs. (1.8 Kg.)
1.3 Q46F/82 Performance Specifications
Accuracy +/- 0.1 PPM or 0.2% of selected range
Repeatability +/- 0.05 PPM or 0.1% of selected range
Sensitivity 0.01 PPM
Non-linearity 0.2% of selected range
Warm-up Time 3 seconds to rated performance (electronics only)
Sensor requires 1 hour stabilization at start-up
Supply Voltage Effects ± 0.05% span
Instrument Response Time 60 seconds to 90% of step input at lowest damping
Equipment bearing this marking may not be discarded by traditional methods in the
European community after August 12 2005 per EU Directive 2002/96/EC. End
users must return old equipment to the manufacturer for proper disposal.

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Part 2 – Mechanical Installation
2.1 General
Mechanical installation of a Q46F/82 fluoride system involves mounting of the Q46F electronic
assembly, mounting of the sample flowcell, and connection of sample and drain tubing. If the
optional panel assembly has been supplied, the system comes assembled with flow controls to
allow operators to properly adjust sample flow to a low value.
Proper planning of the installation will benefit operation and maintenance of the system. Here are
a few considerations
1. Locate the Q46F electronics where personnel can easily access the front panel control
keys. Calibration of the system requires access to these controls.
2. Locate the flowcell high enough above the floor so that servicing of the sensor is not
difficult. Sensors normally require inspection and cleaning every 3-6 months.
3. Water sample and drain lines connect to the flowcell using ¼” O.D. tubing supplied with
the unit. A ¼” MNPT to tubing adapter is supplied for connection to the customer piping.
The drain should be directed to an unpressurized drain near the flowcell. A check valve
on the outlet side of the flowcell serves as a vacuum breaker to avoid pulling a vacuum
on the flowcell.
The Q46F monitor is wall mounted using a PVC plate supplied with the unit. The bracket kit
contains 4 screws for attaching the plate to the back of the enclosure. A paper template is
supplied to ease of locating anchors in the wall.

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Figure 2 - Q46F Enclosure Dimensions
2.2 Wall Mount Bracket
A PVC mounting bracket with attachment screws is supplied with each transmitter (see Figure 3
for dimensions). The multi-purpose bracket is attached to the rear of the enclosure using the four
flat head screws. The instrument is then attached to the wall using the four outer mounting holes
in the bracket. These holes are slotted to accommodate two sizes of u-bolt that may be used to
pipe mount the unit. Slots will accommodate u-bolts designed for 1½ “or 2” pipe. The actual
center to center dimensions for the u-bolts are shown in the drawing. Note that these slots are for
u-bolts with ¼-20 threads. The 1½” pipe u-bolt (2” I.D. clearance) is available from ATI in type
304 stainless steel under part number 47-0005
Figure 3 - Wall or Pipe mount Bracket

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Figure 4 - Wall Mounting Diagram
Figure 5 - Pipe Mounting Diagram