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Instruction 24-9448 5-1
Calibration
5 Calibration
IMPORTANT: Before performing any calibration procedure,
ensure that fresh batteries are installed or use the optional AC
power adapter. Also ensure that the analyzer is at room temper-
ature and will be sampling fresh air when turned ON.
5.1 Smart Sensors
The PCA 2 uses Bacharach’s new “Smart Sensor” technology, meaning
that the calibration data for each sensor is stored in nonvolatile memory
on the sensor’s printed circuit board.
Benefits of Smart Sensors:
New sensors can be installed without needing to be calibrated.
Sensors can be pre-calibrated and installed when needed.
Sensors can be moved from one analyzer to another.
The analyzer’s diagnostics screen shows what sensors are installed,
and their current end-of-life condition (Good, Low, Bad).
Each sensor stores its calibration history and operating parameters,
which can be downloaded to a computer and analyzed. This informa-
tion is useful in determining when the sensor was last calibrated, and
predicting its end-of-life.
The smart sensors should be calibrated by an authorized Bacharach
Service Center (Section 8.3) every 6 months to 1 year to assure that the
analyzer continues to meet its published accuracy specifications. The
smart sensors, however, can be calibrated in the field if your facility has
the necessary equipment and qualified personnel to perform the proce-
dures described in the following sections of this instruction manual.
5.2 Starting a Calibration
Start any calibration procedure by doing the following:
1. Place the probe in an area of fresh air, turn ON the analyzer, allowing
it to cycle through its 60 second warm-up period. During warm-up,
the analyzer’s operation is checked and the sensors are set to the fol-
lowing ambient conditions:
Oxygen sensor spanned to 20.9%
All gas sensors are zeroed
The pressure sensor is zeroed
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- Portable Combustion Analyzer 1
- WARRANTY 2
- Contents 3
- Instruction 24-9448 4
- 1 Introduction 7
- Instruction 24-94481-2 8
- Instruction 24-9448 1-3 9
- 1.3 Features & Benefits 10
- 1.4 Operational Overview 11
- 1.5 Connector Descriptions 12
- Figure 1-1. PCA 2 Components 13
- 1.5.3 POWER (AC Adapter) 14
- 1.6 Front Panel Buttons 15
- Instruction 24-94481-10 16
- Introduction 16
- 2 Specifications 17
- Normal Operating Conditions: 18
- Performance: 18
- Instruction 24-9448 2-3 19
- Specications 19
- Instruction 24-94482-4 20
- 3 Initial Setup 21
- 3.1 Scope 21
- 3.2 Power 21
- Instruction 24-94483-2 22
- Initial Setup 22
- T-STACK T-AIR 23
- 3.4 Operating Parameters 24
- 3.5 Fuel Selection 24
- Instruction 24-9448 5 25
- 3.7 Pressure Units Selection 26
- Instruction 24-9448 7 27
- 3.9 Date Setup 28
- 3.10 Time Setup 29
- Reference Setup 30
- Instruction 24-9448 11 31
- O2 4.0 % 32
- CO 12 ppm 32
- EFF 82.6% 32
- Instruction 24-9448 13 33
- 3.15 Logging Selection 34
- 3.16 Button Sound 34
- 3.17 Test ID Information 35
- Instruction 24-944816 36
- 3.18 Username 37
- Instruction 24-944818 38
- 3.19 Language 39
- 3.20 Cal Reminder Period 40
- 3.21 Run/Hold Screen Format 41
- Instruction 24-944822 42
- Instruction 24-9448 23 43
- 4 Operation 44
- 4.1 Operating Tips 44
- --- % 45
- T-STK 71.5 °F 45
- T-AIR 71.5 °F 45
- EA --- % 45
- CO(0) --- ppm 45
- 4.3 Selecting a Fuel 46
- 4.4 Sampling Point 47
- Instruction 24-9448 4-5 48
- Operation 48
- 4.6 Pressure Label Selection 50
- Instruction 24-94484-8 51
- 4.9 Saving Test Data 53
- 4.10 Ending a Combustion Test 54
- 4.11 Emptying the Water Trap 54
- 4.13 Low Battery Alarm 55
- 4.14 Data Logging 56
- Instruction 24-94484-14 57
- Instruction 24-9448 4-15 58
- Instruction 24-94484-16 59
- Where: “xx” is the memory 59
- 4.15 Memory 60
- Instruction 24-94484-18 61
- Instruction 24-9448 4-19 62
- 4.15.3 Clearing Memory 63
- Instruction 24-9448 4-21 64
- Instruction 24-9448 4-23 66
- Instruction 24-94484-24 67
- Select (Advanced) 68
- Name of new USB 68
- Instruction 24-9448 4-25 68
- 4.16.3 Recovering Data 69
- Instruction 24-9448 4-29 72
- Instruction 24-94484-30 73
- 4.18 Printing Test Data 74
- ∗∗∗) appear in the data 75
- Instruction 24-9448 4-33 76
- 5 Calibration 77
- 5.1 Smart Sensors 77
- 5.2 Starting a Calibration 77
- 5.3 Pressure Sensor 78
- Calibration 78
- 5.4 T-Stack Calibration 80
- ENT to calibrate the TS-Zero 81
- ENT to cali 81
- 5.5 T-Air Calibration 82
- Instruction 24-9448 5-7 83
- 5.6 CO-LO Sensor Calibration 84
- ENT to calibrate the H 85
- Sensor Calibration 86
- 5.8 NO Sensor Calibration 87
- ENT to calibrate the NO 89
- ENT to display 89
- 6 Maintenance 91
- 6.1 PCA 2 Disassembly 92
- Type and position 93
- +∆P (Top) 93
- –∆P (Bottom) 93
- PRESSURE 94
- PURGE AIR 94
- Figure 6-4. Wiring 95
- Instruction 24-94486-6 96
- 6.3 Smart Sensor Replacement 97
- 6.4 Sensor Only Replacement 98
- Instruction 24-9448 6-9 99
- Instruction 24-94486-10 100
- Maintenance 100
- 6.6 Thermocouple Replacement 101
- Instruction 24-94486-12 102
- 6.7 Pump Replacement 103
- 6.8 Cleaning the Probe 104
- 7.1 Analyzer Repair 105
- 7.2 Error Symbols 105
- 7 Troubleshooting 105
- Instruction 24-94487-2 106
- Troubleshooting 106
- ENT to display the 107
- ENT to display the DEVICE 108
- 8 Parts & Service 109
- 8.1 Replacement Parts 109
- Figure 8-1. Parts (2 of 2) 111
- 8.2 Accessories 112
- Instruction 24-9448 8-5 113
- Parts & Service 113
- 8.3 Service Centers 114
- Printed in U.S.A 116
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