Emerson Process Management 53eA instruction manual Temperature compensation Section

MODEL 54eA	SECTION 5.0
	SOFTWARE CONFIGURATION

TABLE 5-1. Program Settings List (continued)

	ITEM	CHOICES	FACTORY SETTINGS
CONFIGURE (continued)
D. pH measurement (Section 5.8)
1. pH sensor		Enable or disable	Enable
2. pH compensation (free chlorine only)		Auto or manual	Auto
3. pH value		0.00 - 14.00	7.00
4. pH diagnostic		On or off	Off
	a. Glass impedance high	0-2000 MΩ (0 disables)	1000 MΩ
	b. Glass impedance low	0-900 MΩ (0 disables)	20 MΩ
	c. Reference impedance high	0-140 kΩ (0 disables)	140 kΩ
	d. Zero offset	0-999 mV	60 mV
	e. Impedance temp. compensation	On or off	On
5. pH calibration
	a. Auto calibration (buffer list)	Manual, Standard, Merck, Ingold, DIN 19267	Standard
	b. Stabilize pH	0.01 - 0.50	0.1
	c. Stabilization time	0-30 sec	10 sec
6.	Solution temperature coefficient
	a. Temperature coefficient	-0.044 to 0.028 pH/°C	0.000
	b. Operating isopotential	-1.35 to 20.12 pH	7.00
	c. Sensor isopotential	0 to 14 pH	7.00
E. Temperature compensation (Section 5.9)
1. Temperature compensation		Auto or manual	Auto
2.	Manual temperature	-15 to 130°C	25°C
F. Noise Reduction (section 5.10)
Noise rejection		50 or 60 Hz	60 Hz
G. Main sensor calibration (Section 5.11)
1.	Stabilize reading
	a. oxygen (ppm)	0 to 20 ppm	0.05 ppm
	b. oxygen (ppb)	0 to 999 ppb	50 ppb
	c. oxygen (% saturation)	0 to 200%	1%
	d. chlorine, monochloramine, or ozone	0 to 9999 ppm	0.05 ppm
2.	Stabilize time	0 - 30 sec	10 sec
3.	Sensor zero stabilization value
4.	Dual range calibration	Enable or disable	disable
5.	Salinity (parts per thousand)	0.0 - 99.9 o/oo	0.0 o/oo
H. Barometric Pressure (Section 5.12)
1.	Barometric pressure (oxygen only)	Auto or manual	Auto
2.	Barometric pressure manual	0.4 - 1.2 atm (or equivalent units)	1.00 atm
3.	Barometric pressure units	mm Hg, in Hg, bar, kPa	mm Hg
I. Security (Section 5.13)
1.	Lock all	000-999 (000 disables)	000
2.	Lock program	000-999 (000 disables)	000
3.	Lock configuration	000-999 (000 disables)	000

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