Broadley Technologies 14 User manual

• Wiring Diagram
Page 3-2
• Programming
the Display
Page 5-13
• Calibration
Chapter 6
• Troubleshooting
Chapter 7
QUICK GUIDE
Instruction
Manual
19 Thomas, Irvine, California 92618 USA
Call Toll-Free: 877.246.7900 (USA & Canada)
Phone: [phone] Fax: [phone]
E-Mail: [email protected]
Model 14
Dissolved Oxygen
Transmitter

Model 14 Oxygen Analyzer
Table of Contents
i
Chapter 1 : Introduction ..........................................................................................................1-1
1.1 Introduction.............................................................................................................................1-1
1.2 Principles of Operation............................................................................................................1-1
1.3 Main Characteristics ................................................................................................................1-2
1.4 Technical Specifications...........................................................................................................1-2
1.5 Dimensions..............................................................................................................................1-4
Chapter 2 : Description of the Analyzer...................................................................................2-1
2.1 Transmitter ..............................................................................................................................2-1
2.1.1 Presentation of the Transmitter................................................................................2-1
2.1.2 Transmitter Schematic.............................................................................................2-2
2.2 Application Fields ....................................................................................................................2-3
2.3 Standard Mounting Options .....................................................................................................2-3
Chapter 3 : Installation of the Instrument ...............................................................................3-1
3.1 Unpacking................................................................................................................................3-1
3.2 Inspection................................................................................................................................3-1
3.3 Mounting .................................................................................................................................3-1
3.4 Location...................................................................................................................................3-1
3.5 Power Connection....................................................................................................................3-1
3.6 Transmitter Start-Up.................................................................................................................3-1
3.7 Adjusting the Display Contrast..................................................................................................3-1
3.8 Electrical Connections .............................................................................................................3-2
3.9 Terminal Descriptions..............................................................................................................3-3
3.10 Changing the Programming Language....................................................................................3-4
3.11 Changing the Power Supply Frequency...................................................................................3-5
Chapter 4 : Using the Instrument.............................................................................................4-1
4.1 Front Panel Keys ......................................................................................................................4-1
4.2 Displays 1 - 4...........................................................................................................................4-2
4.3 Description of the Function Keys..............................................................................................4-3
4.4 Icons........................................................................................................................................4-3
4.5 Enter or Modify a Value...........................................................................................................4-4
Chapter 5 : Programming the Analyzer....................................................................................5-1
5.1 Main Menu ..............................................................................................................................5-1
5.1.1 CALIBRATION Menu ................................................................................................5-2
5.1.2 MAINTENANCE Menu...............................................................................................5-3
5.1.3 PROGRAMMING Menu.............................................................................................5-3
5.1.3.1 MEASURE Menu.............................................................................................5-4
5.1.3.2 ALARMS Menu...............................................................................................5-5
5.1.3.3 mA OUTPUTS Menu ......................................................................................5-8
5.1.3.4 RS485 Menu ...............................................................................................5-10

Model 14 Oxygen Analyzer
Table of Contents
Chapter 5 : Programming the Analyzer (Continued) ...............................................................5-1
5.1.4 SERVICE Menu .....................................................................................................5-11
5.1.4.1 AVERAGE Menu.....................................................................................5-12
5.1.4.2 DISPLAY Menu .....................................................................................5-13
5.1.4.3 CODE Menu..........................................................................................5-14
5.1.4.4 SOFT VERSION Menu............................................................................5-15
5.1.4.5 DEFAULT VAL. Menu..............................................................................5-15
5.1.4.6 mA ADJUST Menu .................................................................................5-16
5.1.4.7 CONFIGURATION Menu.........................................................................5-16
Chapter 6 : Calibrating the Instrument ....................................................................................6-1
6.1 Calibrating the Temperature Sensor.........................................................................................6-1
6.1.1 Automatic Temperature Compensation ...................................................................6-2
6.1.2 Manual Temperature Compensation .......................................................................6-3
6.2 Calibrating the Measurement ...................................................................................................6-4
6.2.1 Slope Calibration in Air with an Electric Zero.........................................................6-4
6.2.2 Slope Calibration in Air with Chemical Zero...........................................................6-5
6.2.3 Slope Calibration in the Process with an Electric Zero ...........................................6-6
6.2.4 Slope Calibration in the Process with Chemical Zero..............................................6-7
Chapter 7 : Start-up and Troubleshooting................................................................................7-1
7.1 Start-up....................................................................................................................................7-1
7.1.1 Probe Connections .................................................................................................7-1
7.1.2 Main Power Supply Connection..............................................................................7-1
7.1.3 Starting the Analyzer...............................................................................................7-1
7.2 Functional Troubleshooting .....................................................................................................7-1
7.3 Troubleshooting the Electronics...............................................................................................7-3
Chapter 8: Error Messages.......................................................................................................8-1
Appendix 1 : Pressure Conversion Table..................................................................................A-1
Appendix 2 : Temperature Conversion Table ...........................................................................A-2
Appendix 3 : Default Values.....................................................................................................A-3
ii
(Continued)

Model 14 Oxygen Analyzer
Chapter1:
Introduction
1.1 Introduction
The Model 14 Dissolved Oxygen Analyzer is a single-
channel analyzer for the measurement of dissolved oxy-
gen in fermentation vessels and bioreactors, as well as
in municipal applications.
1.2 Principle of Operation
The measurement of dissolved oxygen is based on the
well-known Clark cell principle. An oxygen-permeable
membrane isolates the electrodes from the sample,
thus eliminating the need for sample conditioning.
Other reducible or oxidizable ions do not interfere,
because they cannot pass through the gas-permeable
membrane.
A constant voltage supply powers two electrodes, main-
taining each at a constant potential. A platinum work-
ing electrode (cathode) reduces the dissolved oxygen
to hydroxyl ions :
O2+ 2H2O + 4e-=4OH-
A large silver counter electrode (anode) provides the
oxidation reaction:
4Ag++ 4Cl-=4AgCl + 4e-
The reduction of oxygen is the current limiting reac-
tion, thus making the cell current linearly proportional
to the dissolved oxygen concentration.
Electrochemical reactions and diffusion rates are tem-
perature-sensitive. The measuring cell, therefore, is
equipped with a temperature sensor which allows an
automatic temperature compensation.
1-1

Model 14 Oxygen Analyzer
1.3 Main Characteristics
■ Range: 0 - 299.99% saturation; 0 - 29.99 ppm
■ Calibration in the air
■ Temperature compensation
■Programmable alarm levels, outputs on relays
■ 4-20 mA, 0-20 mA analog outputs
(standard)
■ Wall- , panel- and pipe mounting
1.4 Technical Specifications
Power Supply 90 – 265 VAC , 50/60 Hz, Self-adjusting
Power Consumption 25 VA
Connections Terminal blocks
Fuse 5x20 mm cartridge - T2AL - 250V ANALYSIS
Number of Inputs 1
Measuring Range 0 – 299.99% saturation
Accuracy ± 1% full scale
Reproducibility ± 0.1% of range
Response Time (90 %) 0 – 95% full scale, <45 seconds
Ambient Temperature -20 – 60 °C (-4 … 140°F)
Relative Humidity 10 – 90% TRANSMITTER
1-2
Electrical Characteristics
Analysis

Model 14 Oxygen Analyzer
Display Display in concentration units or % saturation
Display of the direct cell current in nA
Display of the sample temperature in °C/°F
Programming via menus
Units nA, ppm-mg/l, °C, °F, % saturation
Calibration Electrical zero, chemical zero, slope calibration in the
air, slope process calibration by comparison with a
laboratory measurement
Analog Outputs 2 x 0/4 - 20 mA isolated from input signal, 800 ohms
load maximum
- Measurement or temperature
- Mode : linear, bi-linear
- Accuracy : 0.1 mA Alarms - Number : 4
- Functions : alarm - system alarm - timer
- Hysteresis : 0 - 10%
- Delay : 0 - 999 seconds
- Breaking power : 250 VAC, 3A maximum
30 VDC, 0.5A maximum
Temperature Compensation Automatic in the range of 0 - 80 °C
RS485 (option) Speed : 300 - 9600 bauds
Insulation : galvanic
Station number : 32 maximum
Transmitter Protection IP 65 and NEMA 4X
Error Reports Cell current > 999 nA
Sample temperature > 80 °C
Ambient temperature > 80 °C
Slope calibration error
Zero calibration error (offset)
Immunity Against Electromagnetic Interferences EN 50082-2 and EN 50082-1
Electromagnetic Emission EN 50081-1 and EN 50081-2
Low Voltage Standard IEC61010-1 MATERIALS
Working Electrode Cathode : platinum
Counter Electrode Anode : silver
Membrane Holder PPS & silicone
Membrane PTFE
Transmitter Epoxy coated aluminum
Probe Body Stainless steel 316L MAI
NTE
NANCE
Cleaning Clean the instrument with a soft tissue.
DO NOT use any aggressive agent.
1-3
Transmitter
Electromagnetic Compatibility
Materials
Maintenanace

Model 14 Oxygen Analyzer
1.5 Dimensions
(Dimensions are in mm and inches)
1-4
Esc Enter
33.5 mm
24 mm 0.936"
1.319"
24 mm 0.945" 28 mm 1.102" 73mm2 Pg13 2 Pg112.874"
117 mm 4.606" 144 mm 5.669"
144 mm 5.669"

Model 14 Oxygen Analyzer
Chapter2:
Description of the Analyzer
2.1 Transmitter
2.1.1 Presentation of the Transmitter
2-1
The electronic unit amplifies the signal of the amperometric measuring cell and converts it into a direct digital
readout in ppm, mg/l or % saturation. The transmitter is comprised of the following items:
■Potentiostat which maintains the working electrode potential constant
■Amperometric measuring module
■Analog multiplexer
■Microprocessor unit
The analog multiplexer allows measurement inputs from the measuring cell, temperature sensor and internal
checkpoints. Furthermore, the microprocessor operates the relays, the RS485 interface (optional) and the ana-
log outputs.
The unit has an internal concentration auto-ranging feature and a microprocessor-operated calibration routine.
The output of the potentiostat is monitored for possible overdriving of the potentiostat-output stage. This condi-
tion can occur when the connections to the measuring cell are due to an inoperable electrode or a defective ref-
erence electrode.

Model 14 Oxygen Analyzer
2-2
2.1.2 Transmitter Schematic:
1 : Programmable potentiostat 6 : Auxiliary input
2 : Polarization voltage amplifier 7 : Multiplexer
3 : Reversing switch for a 2 or 3 electrode 8 : A/D converter
operation.
4 : Temperature measurement circuit 9 : Microprocessor
5 : Measurement circuit current amplifier
REFERENCE
ANODE
TEMP +
TEMP -
CATHODE
AUX
49
875
6
2
1
3
U

Panel mounting
Panel cut-out: 138 mm x 138 mm (5.4” x 5.4”)
Front panel dimensions: 144 mm x 144 mm (5.7” x 5.7”)
Included hardware: 2 flat head screws, 4 mm x 18 mm long, for panels up to 6 mm thick
Model 14 Oxygen Analyzer
2.2 Application Fields
Easy to use, install and program, this instrument is suitable for the following applications:
- Fermentation / biotech
- Municipal
2.3 Standard Mounting Options (using the red clamping bow)
The transmitter housing conforms to norm DIN 43700.
2-3
Wall mounting
Included hardware: 2 pan head screws, 4 mm x 60 mm long for red clamping bow (a)
Additional required hardware: 2 flat head screws, 4 mm x 60 mm long (b)
Placed 3.15 “ (80 mm) on center
80 mm (3.15")
8 mm (0.315”) max.
285 mm (11.22”) max.
(a)
(b)

Model 14 Oxygen Analyzer
Vertical pipe mounting
Included hardware: 2 pan head screws,
4 mm x 60 mm long for red clamping bow
Horizontal pipe mounting
Included hardware: 2 pan head screws,
4 mm x 60 mm long for red clamping bow
2-4
320 mm (12.598") max.
42 mm (1.653") max.

Model 14 Oxygen Analyzer
Chapter3:
Installation of the Instrument
3.1 Unpacking
The analyzer should be unpacked with great care.
Watch for any loose accessories.
3.2 Inspection
The analyzer has been factory checked and tested prior
to shipment. It is advisable, however, to inspect all
parts immediately upon receipt for any damage which
may have occurred during shipping. A damaged ship-
ping container may indicate internal damage, which
may not be immediately obvious. If there is any evi-
dence of damage, keep the shipping container and
refer to your local agent or to:
Broadley Technologies Corporation
19 Thomas, Irvine, CA 92618 USA
949-452-1112
Toll Free in the US and Canada 877-246-7900
3.3 Mounting
3.4 Location
The analyzer should be located in an accessible site.
The site should permit access for any inspection or
maintenance operation.
3.5 Power Connection
For safety reasons, it is required to observe the pre-
cautions below:
1. The instrument should be connected to the power
supply by means of a breaker located close to the
instrument and clearly identified.
2. This breaker should switch off phase and neutral in
case of electrical problems or to service the instru-
ment. However, the earth ground must always be con-
nected.
3.6 Starting the Transmitter
Before switching on the transmitter, make sure the
site voltage corresponds to the instrument voltage
indicated on the identification plate.
3.7 Adjusting the Display Contrast
If the display contrast is not sufficient, adjust the
potentiometer P1 (blue color, see figure on page
3-2), which is located on the top left of the CPU
board (after opening the enclosure).
3-1
CAUTION!
Mounting should be done by
qualified service personnel only.
No power should be applied until
the installation is complete.
Before servicing the instrument,
confirm the power supply is “off”.
m

Model 14 Oxygen Analyzer
3.8 Electrical Connections
■Model 14
Do not switch the instrument on until completion of the installation.
An aluminum armor plate inside the Model 14 gives a detailed description of the different terminals and their
connections:
3-2
Serial N ° :
Zellweger Analytics SA / F-93165 Noisy-le-Grand
Made in the E.E.C
l2
l1
RX / TX +
RX / TX
Temp +
Temp
NC.
Anode
Cathode
NC
+ V
GND
- V
GND
T 2A L
F1 PE
N
L
S1
S2
S3 / Sys.Alarm
S4 / Timer
Analog
Outputs
RS485
(option)Amp. module
Preamp.
Supply
50 / 60Hz 25VA
Vac: 90...265V
Relays
GND
Mains
+
+
➯ The Relays and Main Power Supply terminals represented on the right side are accessible by removing
the armor plate.

Model 14 Oxygen Analyzer
3.9 Terminal Descriptions
3-3
DESCRIPTION CONNECTION
0 - 20 mA or 4 - 20 mA (n°1) [+] user
0 - 20 mA or 4 - 20 mA (n°1) [-] user
0 - 20 mA or 4 - 20 mA (n°2) [-] user
0 - 20 mA or 4 - 20 mA (n°2) [+] user
RS485 Option user
user
DESCRIPTION COLOR CONNECTION
Temperature sensor [+] black temp +
Temperature sensor [-] blue temp -
Reference if using 3 electrodes not used on the Model 14
oxygen analyzer
Anode red Anode
Cathode white Cathode
Auxiliary N.C.
External shield braid armor plate
Internal shield brown GND
Not used for the oxygen measurement N.C.
Main power supply, 90...265 VAC 50/60 Hz
or 24 V AC/DC (special version)
DESCRIPTION CONNECTION
Alarm 1, simple contact user
Alarm 2, simple contact user
Alarm 3 or alarm system, simple contact user
Alarm 4 or timer, simple contact user
0/4 - 20 mA outputs
galvanic insulation
amperometric
module
➯Electrical connections should remain dry to ensure proper operation of the instrument.
Check the creeping of the cables when opening the transmitter.
➯Shielded cables are recommended.This shielding should be connected to the earth central
shielding.
Amp module
Temp+
Temp-
NC
Anode
Cathode
NC
Mains
PE
L
N
Preamp
Supply
+V
-V
GND
GND
GND
Amp module
Temp+
Temp-
NC
Anode
Cathode
NC
RS485
(option)
RX/TX+
RX/TX-
Analog
Outputs
1
-
-
+
+2
Ground
Behind aluminum plate

Model 14 Oxygen Analyzer
3-4
3.10 Changing the Programming Language
The default programming language is English. To change the language,
follow the procedure below (example for French):
100
23.2°CO2
% Sat
MENU
CALIBRATION
MAINTENANCE
PROGRAMMING
SERVICE
Select
CONC: ppm
TEMP.: °C
PRESSURE: mmHg
LANGUAGE: GB
DISPLAY
Select
Disp2 Menu
Select
SERVICE
AVERAGE
DISPLAY
CODE
SOFT ISSUE
DEFAULT VAL.
ADJUST mA
CONFIGURATION
CONC: ppm
TEMP.: °C
PRESSURE: mmHg
LANGUAGE: F
DISPLAY
Select
CONC: ppm
TEMP.: °C
PRESSION: mmHg
LANGUE: F
DISPLAY
Select
Enter
Enter
Enter Esc
(press 3 times)

Model 14 Oxygen Analyzer
3-5
3.11 Programming the Power Supply Frequency
The power supply frequency can be changed if necessary. This change occurs at the initial start-
up and after resetting the instrument. Follow the procedure below.
23.2°CO2
MENU
CALIBRATION
MAINTENANCE
PROGRAMMING
SERVICE
Select
FREQ: 50Hz
CONFIGURATION
Select
Disp2 Menu
Select
SERVICE
AVERAGE
DISPLAY
CODE
SOFT ISSUE
DEFAULT VAL.
ADJUST mA
CONFIGURATION
DISPLAY
Enter
Enter
Enter
Enter
FREQ: 60Hz FREQ: 60Hz
100
% Sat
DISPLAY
Esc
(press 3 times)

Model 14 Oxygen Analyzer
3-6

Model 14 Oxygen Analyzer
Chapter4:
Using the Instrument
4.1 Front Panel Keys
The display may be programmed to indicate :
■Sample concentration
■Sample temperature
■Diffusion current
■Programming codes
■Programming features
4-1
Figure 4-1 : Front Panel

Model 14 Oxygen Analyzer
4-2
4.2 Displays 1 to 4 (live displays)
100% : Dissolved Oxygen measurement
23.2°C : Temperature measurement
O2 : Application
S1...S4 : Alarm status
(invisible if alarm is inactive)
Display of the parameters measured :
% Saturation
Temperature
Cell current
S1...S4 : alarm status
In this case relays S1 and S3 are active
Analog output allocation and level
Numeric and bargraph indication
100
23.2°CO2
% Sat
Disp2 Menu
100%
23.2°C
60.4 nA
Disp3
Disp4
I2: Conc
4.9 mA
Main
S1 S3
S2 S4
S1 S3
S2 S4
S1 S3
S1: ppm >3
S2: OK
S3: ppm >5
S4: OK
I1: Conc
4.9 mA

Model 14 Oxygen Analyzer
4.3 Description of the Function Keys
The function keys below will be highlighted at the bottom of the screen :
4-3
4.4 Icons
Wait for instrument to reset
Alarm system for relay S3
Timer symbol : countdown for relay S4
Controller symbol
Select
Main
Menu
Disp2
Disp3
Disp4
OK
Yes
-
+
Scrolling in a list of menus
Return to the main display
Display the main menu
Display screen 2
Display screen 3
Display screen 4
Validate the measure during calibration
Confirm a command
Decrease a value
Increase a value
Modify a parameter
P