Emerson 6081-P Manual do Utilizador Página 46
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MODEL 6081-P pH/ORP SECTION 10.0
CALIBRATION – PH
FIGURE 10-1. Calibration Slope and Offset
During automatic calibration, the transmitter also measures
noise and drift and does not accept calibration data until read-
ings are stable. Calibration data will be accepted as soon as the
pH reading is constant to within the factory-set limits of 0.02 pH
units for 10 seconds. The stability settings can be changed.
In manual calibration, the user judges when pH readings are
stable. He also has to look up the pH of the buffer at the
temperature it is being used and enter the value in the transmitter.
Once the transmitter completes the calibration, it calculates the
calibration slope and offset. The slope is reported as the slope
at 25°C. Figure 10-1 defines the terms.
The transmitter can also be standardized. Standardization is the
process of forcing the transmitter reading to match the reading
from a second pH instrument. Standardization is sometimes
called a one-point calibration.
- Model 6081-P 1
- ESSENTIAL INSTRUCTIONS 2
- About This Document 3
- QUICK START GUIDE 4
- MODEL 6081-P pH/ORP 7
- WIRELESS TRANSMITTER 7
- TABLE OF CONTENTS CONT’D 8
- LIST OF FIGURES 9
- SECTION 1.0 11
- 1.3 SPECIFICATIONS - WIRELESS 12
- 1.4 FUNCTIONAL SPECIFICATIONS 12
- 1.5 Product Certifications 13
- 1.6 HART COMMUNICATIONS 13
- SECTION 2.0 15
- INSTALLATION 15
- 2.4 Mechanical Installation 16
- 2.5 Ground the Transmitter 16
- 2.3 PRE-INSTALLATION SETUP 16
- 2.4.3 Pipe Mounting 19
- SECTION 3.0 23
- SENSOR WIRING 23
- SECTION 4.0 25
- SECTION 5.0 27
- COMMISSIONING 27
- 5.3 VERIFY OPERATION 28
- SECTION 6.0 29
- DISPLAY AND OPERATION 29
- 6.3 MENUS - pH 30
- 6.2 KEYPAD 30
- 6.5 SECURITY 31
- SECTION 7.0 33
- OPERATION WITH MODEL 375 33
- 7.3 Operation 34
- SECTION 8.0 35
- PROGRAMMING THE TRANSMITTER 35
- Typically, the ref 36
- COMPENSATION 38
- 8.5 SETTING A SECURITY CODE 39
- SECTION 9.0 43
- CALIBRATION — TEMPERATURE 43
- CALIBRATION – TEMPERTURE 44
- SECTION 10.0 45
- CALIBRATION — pH AND ORP 45
- CALIBRATION – PH 46
- The display will return 47
- 10.6 ORP CALIBRATION 51
- SECTION 11.0 53
- MAINTENANCE 53
- 11.3 pH SENSOR MAINTENANCE 54
- 11.4 ORP SENSOR MAINTENANCE 56
- 11.5 CALIBRATION 56
- 11.6 POWER MODULE REPLACEMENT 57
- SECTION 12.0 59
- RETURN OF MATERIAL 59
- RETURN OF MATERIALS 60
- Emerson Process Management 61
- Liquid Division 61
- 2400 Barranca Parkway 61
- Irvine, CA 92606 61
- The right people 62
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