Emerson instruction manual Model 381 pH/ORP Sensor

MODEL 381 pH/ORP TABLE OF CONTENTS

MODEL 381 pH/ORP SENSOR

TABLE OF CONTENTS

Section	Title	Page
1.0	DESCRIPTION AND SPECIFICATIONS	1
1.1	Features and Applications	1
1.2	Sensor Specifications	2
1.3	Ordering Information	3
2.0	INSTALLATION	5
2.1	Installation	5
2.2	Submersion Installation (Code 02)	5
2.3	Insertion Installation (Code 00)	7
2.4	Flow Through Installation (Code 03)	7
2.5	Flow Powered Cleaner Installation (Code 04)	7
2.6	Wiring	7
2.7	Start-Up and Calibration	14
2.8	Model 381 pH and pHE	14
2.9	Model 381 ORP	14
3.0	MAINTENANCE	15
3.1	General	15
3.2	Periodic Maintenance	15
3.3	Troubleshooting	16
3.4	Preamplifier Troubleshooting	18
3.5	T.C. Element Maintenance	18
4.0	ULTRASONIC CLEANER	21
4.1	Ultrasonic Cleaner	21
4.2	Specifications	21
4.3	Installation	21
4.4	Operation	22
4.5	Maintenance	22
4.6	Replacement Parts	22
5.0	RETURN OF MATERIAL	25

LIST OF TABLES

Table No.	Title	Page
2-1	ORP of Saturated Quinhydrone Solutions (in Millivolts)	14
3-1	Troubleshooting	17
3-2	Temperature vs. Resistance of Auto TC Element	18
3-3	Ro & R1 Values for Temperature Compensation Elements	18
3-4	Model 381 Spare Parts	19
3-5	Accessories	19

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