Emerson Process Management 3081 pH/ORP instruction manual PH Settings List

MODEL 3081 pH/ORP	SECTION 8.0
	PROGRAMMING FOR pH MEASUREMENTS

TABLE 8-1. pH Settings List

ITEM		MNEMONIC	DISPLAY LIMITS		FACTORY SETTINGS	USER SETTINGS
PROGRAM LEVEL (Sections 8.0 - 8.9).
A. Output Range (Section 8.3)		OutPut
1.	4 mA Output		0 - 14 pH		0.00 pH	_______
2.	20 mA Output:		0 - 14 pH		14.00 pH	_______
3.	Hold	HOLd	3.80 to 22.00 mA		21.00mA	_______
4.	Dampening	dPn	0 to 255 seconds		0 seconds	_______
5.	Fault Current Output Setting	FAULt	3.80 to 22.00 mA		22.00mA	_______
B. Diagnostic (Section 8.4)		dIAgnOStIC
1.	Reference Cell Offset (Standardize error)	rOFFSt	0 to 1000 mV		60 mV (pH on	_______
					glass electrode)
2.	Diagnostics Function	dIAg	On/Off		Off	_______
3.	Glass Impedance Temperature Correction	IMPtC	On/Off		On	_______
4.	Glass Electrode High Impedance Fault	GFH	0 to 2000 megohms		1500 megohms	_______
5.	Glass Electrode High Impedance Warning	GWH	0 to 2000 megohms		1000 megohms	_______
6.	Glass Electrode Low Impedance Warning	GWL	0 to 900 megohms		20 megohms	_______
7.	Glass Electrode Low Impedance Fault	GFL	0 to 900 megohms		10 megohms	_______
8.	Glass Impedance Calibration Warning	CAL	0 to 500 %		0 % (not Active)	_______
9.	Reference Cell Impedance Type	rEF	LO/HI		LO	_______
10. Reference Cell High Impedance Fault		rFH	0 to 2000 megohms (HI)		1500 megohms	_______
			0 to 2000 kilohms	(LO)	140 kilohms
11. Reference Cell High Impedance Warning		rWH	0 to 2000 megohms (HI)		1000 megohms	_______
			0 to 2000 kilohms	(LO)	40 kilohms
12. Reference Cell Low Impedance Warning		rWL	0 to 900 megohms	(HI)	20 megohms	_______
			Does not apply for low impedance reference cell
13. Reference Cell Low Impedance Fault		rFL	0 to 900 megohms	(HI)	10 megohms	_______
			Does not apply for low impedance reference cell
C. Temperature (Section 8.5)		tEMP
1. Auto Temperature Compensation		tAUtO	On/Off		On	_______
2.	Manual Temperature	tMAn	-15 to 130 0C		25 0C	_______
			5 to 266 0F
3.	Temperature Sensor Type	tC	100-3; 100-4; 1000-3;		100-3	_______
			1000-4: 3000
D. Display (Section 8.6)		dISPLAY
1.	Measurement type	tYPE	pH/ORP		pH	_______
2.	Temperature Units	tEMP	°C/°F		°C	_______
3.	Output Units	OUtPUt	mA/% of full scale		mA	_______
4.	Code	COdE	0 to 999		000	_______
E. Buffer (Section 8.7)		bUFFEr
1. Auto Calibration Function		b AUtO	ON/OFF		ON	_______
2.	Buffers Selection List	bUFFEr	See Tables 8-2 and 8-3		Standard	_______
3.	Auto Buffer Stabilization Time	tIME	0 to 30 seconds		10 seconds	_______
4. Auto Stabilization pH Change		PH	.002 to .5pH		.02 pH	_______
F. Isopotential (Section 8.8)		ISOPOtntAL
1.	Temperature Coefficient	tCOEF	-0.044 to 0.028 pH/ 0C		0.000 pH/ 0C	_______
2.	Solution Isopotential pH	ISO	-1.35 to 20.12 pH		7.00 pH	_______
3.	Sensor Isopotential pH	Snr	0.00 to 14.00 pH		7.00 pH	_______
G. Output Simulation (Section 8.9)		SIMOUtPUt
Test		tESt	3.80 to 22 mA		12.00 mA	_______

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