3 electronics, 5 trace oxygen analyzer operational theory 2 – Teledyne 3300TB - Low cost trace oxygen analyzer User Manual
Page 15
2-5
Trace Oxygen Analyzer
Operational Theory 2
Teledyne Analytical Instruments
2.3
Electronics
2.3.1 General
The signal processing uses an Intel
microcontroller with on-board RAM
and ROM to control all signal processing, input/output, and display functions for
the analyzer. System power is supplied from a universal power supply module
designed to be compatible with most international power sources.
The power supply circuitry is on the Power Supply PCB, which is mounted
vertically, just behind the rear panel of the Control Unit.
The signal processing electronics including the sensor amplifier,
microcontroller, analog to digital, and digital to analog converters are located on
the Main PCB, which is mounted vertically, just behind the front panel of the
Control Unit.
2.3.2 Signal Processing
Figure 2-3 is a block diagram of the signal processing electronics described
below.
Figure 2-3: Block Diagram of the Signal Processing Electronics
ALARMS
ALARMS
DISPLAY
D A C
A D C
KEYBOARD
E–I CONV
SENSOR
AMPLIFIER
TEMPERATURE
COMPENSATION
NETWORK ON
SENSOR PCB
MICRO-
CONTROL-
LER
RELAYS
RELAYS
MFC
4–20 mA dc
0–10 V dc
RANGE ID
Concentration
Millivolt
Potput
Microamp
Output
B-2C Sensor
- 1220 - Multipoint flammable gas and vapor detection system (50 pages)
- 212R - Thermal conductivity analyzer (28 pages)
- 235 - Thermal conductivity analyzer (38 pages)
- 275R - Portable turbine generator purge gas analyzer (21 pages)
- 2000A-EU - General purpose thermal conductivity analyzer (86 pages)
- 2000XTC - Thermal conductivity analyzer (40 pages)
- 2010A - Split architecture thermal conductivity analyzer (110 pages)
- 2010B - Split architecture thermal conductivity analyzer (98 pages)
- 2020 - Explosion proof thermal conductivity analyzer (80 pages)
- 2120 - Trace Nitrogen in Argon Analyzer (66 pages)
- 2120XL - Trace Nitrogen Analyzer (85 pages)
- 2230R - Process Hydrogen Analyzer (26 pages)
- 2240 – Portable Handheld Hydrogen Leak Detector, 3rd generation (updated 1/31/11) (30 pages)
- 2240 - Portable Handheld Hydrogen Leak Detector, 3rd generation (revision 2/29/08) (40 pages)
- 2240 – Portable Handheld Hydrogen Leak Detector, 2nd generation (13 pages)
- 2750 - Portable turbine generator gas analzyer (40 pages)
- 300P - Percent oxygen analyzer (24 pages)
- 306WA - Analog trace oxygen analyzer (46 pages)
- 311 - Portable trace oxygen analyzer (19 pages)
- 311D - Portable trace oxygen analyzer with digital meter (18 pages)
- 311XL - Portable trace oxygen analyzer (18 pages)
- 316RA / RB / RAD / RBD - Oxygen analyzers (24 pages)
- 319R - Oxygen analyzer (23 pages)
- 320 Series - Portable oxygen detectors (24 pages)
- 326, 327 and 328 - Oxygen analyzers (45 pages)
- 329R - Oxygen analyzer (22 pages)
- 335 - Analog control room monitor for personnel safety (24 pages)
- 356WA - Analog trace oxygen analyzer (42 pages)
- 3000MA - Paramagnetic oxygen analyzer (63 pages)
- 3000MA - Paramagnetic oxygen analyzer Addendum (2 pages)
- 3000MB - Paramagnetic oxygen analyzer (59 pages)
- 3000PA - General purpose percent oxygen analyzer (69 pages)
- 3000PAEU - General purpose percent oxygen analyzer (78 pages)
- 3000PB - Bulkhead mount percent oxygen analyzer (82 pages)
- 3000TA - General purpose trace oxygen analyzer (75 pages)
- 3000TA-EU - General purpose trace oxygen analyzer (89 pages)
- 3000TA-XLEU - Trace oxygen analyzer (108 pages)
- 3000TB - Bulkhead mount trace oxygen analyzer (78 pages)
- 3000TB-XL - Trace oxygen analyzer (78 pages)
- 3000ZA - Trace oxygen analyzer (81 pages)
- 3000ZA-3X - Trace oxygen analyzer (72 pages)
- 3000ZA2G - Zirconium oxide analyzer (72 pages)
- 3000 Ultra Trace - PPB oxygen analyzer (72 pages)
- 3010MA - Paramagnetic oxygen analyzer, includes 0-100% range (88 pages)
- 3010MA – Paramagnetic oxygen analyzer, no 0-100% range – (superceded) (88 pages)