ATI Technologies Q45CT Manuale utente
O & M Manual
Model Q45CT
Portable Toroidal Conductivity
Measurement System
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: 800-959-0299 Saddleworth OL3 5DE
610-917-0991 Phone: +44 (0)1457-873-318
Fax: 610-917-0992 Fax: + 44 (0)1457-874-468
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O&M Manual
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Table of Contents
TABLE OF FIGURES ............................................3
PART 1 - INTRODUCTION..................................4
1.1 General.......................................................4
1.2 Features......................................................5
1.3 Q45CT System Specifications...................6
1.4 Q45CT Performance Specifications ..........7
PART 2 –SYSTEM SPECIFICATIONS ...............8
2.1 General.......................................................8
2.2 Portable Handle .........................................8
PART 3 –ELECTRICAL INSTALLATION........9
3.1 General.......................................................9
3.2 Direct Sensor Connection..........................9
3.3 Sensor Connection...................................10
PART 4 –CONFIGURATION.............................11
4.1 General.....................................................11
4.2 Battery / Power Circuit Board .................11
4.3 Battery Power Circuit Board....................13
4.4 Voltage Outputs.......................................13
4.5 User Interface...........................................14
4.51 Keys.....................................................15
4.52 Display.................................................15
4.6 Software...................................................17
4.61 Software Navigation...........................17
4.7 Measure Menu [MEASURE]...............19
4.8 Calibration Menu [CAL] ..........................20
4.9 Configuration Menu [CONFIG] .........21
4.10 Control Menu [CONTROL] ...............23
4.11 Diagnostics Menu [DIAG].....................24
PART 5 –CALIBRATION...................................27
5.1 Overview and Methods............................27
5.11 1-Point Calibration Explained .............27
5.12 Zero Cal Calibration Explained...........28
5.2 Performing a 1-Point Calibration.............28
5.3 Performing a Cell Factor Calibration.......30
5.4 Performing a Sensor Zero Calibration .....30
5.5 Temperature Calibration..........................31
5.6 TC Factor Calibration..............................32
PART 6 –SYSTEM MAINTENANCE ...............33
6.1 System Checks.........................................33
6.2 Instrument Checks ...................................33
6.3 Display Messages ....................................34
SPARE PARTS......................................................37
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O&M Manual
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Table of Figures
FIGURE 1–PORTABLE UNIT OVERVIEW........................................................................................ 8
FIGURE 3-SENSOR CABLE PREPARATION .................................................................................... 9
FIGURE 4-SENSOR CONNECTIONS .............................................................................................10
FIGURE 5-BATTERY BOARD CONNECTIONS.................................................................................12
FIGURE 6-USER INTERFACE.......................................................................................................14
FIGURE 7-SOFTWARE MAP ........................................................................................................18
FIGURE 8-NACL REFERENCE SOLUTION FOR CALIBRATION..........................................................28
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O&M Manual
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Part 1 - Introduction
1.1 General
The Model Q45CT Portable Conductivity monitor/analyzer provides an extremely
versatile measurement system for monitoring and control of conductivity over the
range of 20 µS/cm to 2.000 Siemen/cm.
The system operates on two AA batteries, and will run continuously for
approximately 240 hours.
Warning: If unit is to be stored for more that 6 months REMOVE the
batteries from the holder to avoid potential damage from battery leakage.
The Q45CT portable displays conductivity and sensor temperature. The
instrument is used with the high performance toroidal sensors.
ATI Model Q45CT Toroidal Cond. Portable Transmitter Part 1 - Introduction
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O&M Manual
Rev-G (7/15)
1.2 Features
•Standard Q45CT electronic transmitters are designed to be a fully isolated,
battery operated instrument. The monitor can be quickly converted to either a
loop power transmitter or line powered analyzer.
•Two 10-bit, isolated, 0-2.5 VDC analog outputs may be configured to track
conductivity and temperature. Both analog outputs can be individually
programmed to fail to specific values.
•Large, high contrast, custom Super-Twist display provides excellent readability.
The secondary line of display utilizes 5x7 dot matrix characters for clear
message display. Two of four measured parameters may be on the display
simultaneously. An LED backlight can be turned on if necessary for use in very
low light conditions.
•Sensor diagnostics monitor electrode coating/fouling, sensor leaks, and RTD
condition. Diagnostic messages provide a clear description of any problem with
no confusing error codes to look up. Messages are also included for diagnosing
calibration problems.
•Quick and easy one-point calibration method and sensor zero-cal. To provide
high accuracy, all calibration methods include stability monitors that check
temperature and main parameter stability before accepting data.
•High accuracy Pt1000 temperature input. Temperature element can be user
calibrated.
•Security lock feature to prevent unauthorized tampering with transmitter settings.
All settings can be viewed while locked, but they cannot be changed.
ATI Model Q45CT Toroidal Cond. Portable Transmitter Part 1 - Introduction
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O&M Manual
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1.3 Q45CT System Specifications
Enclosure NEMA 4X, polycarbonate, stainless steel hardware,
weatherproof and corrosion resistant,
HWD: 4.4" (112 mm) × 4.4" (112 mm) × 3.5" (89 mm)
Mounting Options Hand held.
Weight 1 lb. (0.45 kg)
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.
Keypad 4-key membrane type with tactile feedback, polycarbonate
with UV coating.
Ambient Temperature Service, -20 to 60 °C (-4 to 140 ºF)
Storage, -30 to 70 °C (-22 to 158 ºF)
Ambient Humidity 0 to 95%, indoor/outdoor use, non-condensing to rated
ambient temperature range
Electrical Certification Ordinary Location, cCSAus (CSA and UL standards - both
approved by CSA), pollution degree 2, installation category
2
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
Temperature Input Pt1000 RTD with automatic compensation
Displayed Parameters Main input, 0.0 μS to 2000 mS
% Concentration (if enabled)
Sensor temperature, -10.0 to 110.0 °C (14 to 230ºF)
MainParameterRanges Automatic or manual selection of the following:
0 to 2000 S
0.0 to 2.000 mS
0.00 to 20.00 mS
0.0 to 200.0 mS
0 to 2000 mS
0.000 to 2.000 S
Power: Two generic AA batteries, low battery indication at 1.60V
DC.
ATI Model Q45CT Toroidal Cond. Portable Transmitter Part 1 - Introduction
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O&M Manual
Rev-G (7/15)
Outputs: Two 0-2.5 VDC isolated outputs are provided on for
connection to data recorders, etc.
Battery Life: Approximately 240 hours of operational use on a set of
batteries (without backlight).
1.4 Q45CT Performance Specifications
(Common to all variations)
Accuracy 0.3% of span or better (± 10 μS)
Repeatability 0.3% of span or better (± 10 μS)
Sensitivity 0.05% of span (± 1 μS)
Stability 0.1% of span per 24 hours, non-cumulative
Warm-up Time 7 seconds to rated performance
Supply Voltage Effects ± 0.05% span
Instrument Response Time 12 seconds to 90% of step input at lowest setting
Temperature Drift Span or zero, 0.03% of span/°C
Max. Sensor-Instrument 60 ft. (18.3 meters)
Distance
Sensor Type Toroidal - 6 wire (paired and shielded) input
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O&M Manual
Rev-G (7/15)
Part 2 –System Specifications
2.1 General
The Q45CT Portable Conductivity System comes complete with a specially
designed handle that allows the system to be comfortably carried, or quickly
strapped to a railing. Although the system is designed to be a portable system, it
can be permanently mounted for longer term field use. This is possible due to
the very long battery life spans that can be achieved with the system.
2.2 Portable Handle
A removable handle is included with each unit that provides not only comfortable
transportation of the system, but the integral locking strap allows the system to
be quickly mounted to pipes or rails for longer term use in one area.
Figure 1 –Portable Unit Overview
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O&M Manual
Rev-G (7/15)
Part 3 – Electrical Installation
3.1 General
The sensor cable can be quickly connected to the Q45 terminal strip by matching
the wire colors on the cable to the color designations on the label in the monitor.
Keep signal cable away from AC power lines, adjustable frequency drives,
motors, or other noisy electrical signal lines.
3.2 Direct Sensor Connection
The sensor cable should be routed into the enclosure through the right hand cord
grip on the bottom of the enclosure. Make sure the cord-grips are snugly
tightened after electrical connections have been made to prevent moisture
incursion. When stripping cables, leave adequate length for connections in the
transmitter enclosure, as shown below
.
Figure 2 - Sensor Cable Preparation
ATI Model Q45CT Portable Transmitter Part 3 –Electrical Installation
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O&M Manual
Rev-G (7/15)
3.3 Sensor Connection
Figure 3 - Sensor Connections
Indice
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