TABLE
OF
CONTENT
9
1
INTRODUCTION ................................................................................................................................ 1
1.1
GENERAL ..................................................................................................................................... 1
1.2
DESCRIPTION .............................................................................................................................. 1
1.2.1
SENSOR UNIT........................................................................................................................ 1
1.2.2
TRANSMITTER UNIT ............................................................................................................ 1
2
INSTALLATION ................................................................................................................................. 3
2.1
MOUNTING
OF
UNIT .................................................................................................................. 3
2.1.1
LOCATION AND LAYOUT .................................................................................................... 3
2.1.2
TRANSMITTER UNITS .......................................................................................................... 4
2.2
SAMPLE
REQUIREMENTS......................................................................................................... 6
2.3
EXTERNAL
PIPING
CONNECTIONS......................................................................................... 6
2.3.1
INLET ..................................................................................................................................... 6
2.3.2
DRAIN .................................................................................................................................... 6
2.4
ELECTRICAL
CONNECTIONS ................................................................................................... 7
2.5
SENSOR
UNIT .............................................................................................................................. 7
2.5.1
TRANSMITTER UNIT ............................................................................................................ 7
2.5.2 WIRING OF BOARDS................................................................................................................ 8
Chassis.................................................................................................................................................. 10
2.6
REMOTE
EQUIPMENT.............................................................................................................. 10
2.6.1
RECORDERS........................................................................................................................ 10
2.6.2
RANGE INDICATION .......................................................................................................... 10
3
START UP .......................................................................................................................................... 12
4
PRINCIPLE OF OPERATIONS ...................................................................................................... 14
4.1
SENSOR
UNIT ............................................................................................................................ 14
4.1.1
A flow schematic is shown in Fig. 4.1................................................................................... 14
4.2
QA/QC
JUNCTION
BOX
SWITCH ............................................................................................ 15
4.2.1
Normal Calibration .............................................................................................................. 15
4.2.2
Process Calibration .............................................................................................................. 15
4.2.3
QA/QC .................................................................................................................................. 15
4.3
TRANSMITTER
UNIT................................................................................................................ 16
4.3.1
ELECTRONICS CHASSIS .................................................................................................... 16
4.3.2
CIRCUIT BOARD FUNCTION ............................................................................................ 16
4.3.3
FRONT PANEL CONTROLS ............................................................................................... 17
4.3-4 ALARMS..................................................................................................................................... 20
4.4
ANALOG
OUTPUTS................................................................................................................... 20
5
CALIBRATION PROCEDURE ....................................................................................................... 22
5.1
SINGLE
POINT
CALIBRATION
USING
STANDARD
SOLUTION ....................................... 22
5.2
CALIBRATION
USING
PROCESS
SAMPLE
AS
A
STANDARD
SOLUTION ....................... 23
6
MAINTENANCE ............................................................................................................................... 24
6.1
CHEMICAL
SOLUTIONS .......................................................................................................... 24
6.1-1
BUFFER SOLUTION ........................................................................................................... 24
6.1.1
Concentrated ammonia solution - 2 liters ............................................................................ 24
6.1-2 STANDARD SOLUTIONS........................................................................................................... 24
6.1-3
NITRIC ACID CLEANING SOLUTION ............................................................................... 26
Note: Waltron L.L.C. offers Nitric Acid in a 2 ounce size part number H1234-556 ........................... 26
6.1-4 HYDRAZINE SENSOR RECHARGE GEL ................................................................................. 26
6.2
SCHEDULED
SERVICING ........................................................................................................ 26
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