Yokogawa EJA438 - Manual (Page 4)

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CONTENTS
IM 1C22J1-01E
6. OPERATION .................................................................................................. 6-1
6.1 Preparation for Starting Operation ...................................................... 6-1
6.2 Zero Point Adjustment ........................................................................ 6-2
6.2.1 When you can obtain Low Range Value from actual
measured value of 0% (0 kPa, atmospheric pressure); .............. 6-2
6.2.2 When you cannot obtain Low Range Value from actual
measured value of 0%; ................................................................ 6-3
6.3 Starting Operation ............................................................................... 6-3
6.4 Shutting Down Operation .................................................................... 6-3
6.5 Setting the Range Using the Range-setting Switch ........................... 6-4
7. BRAIN TERMINAL BT200 OPERATION ..................................................... 7-1
7.1 BT200 Operation Precautions ............................................................. 7-1
7.1.1 Connecting the BT200 ................................................................. 7-1
7.1.2 Conditions of Communication Line .............................................. 7-1
7.2 BT200 Operating Procedures ............................................................. 7-1
7.2.1 Key Layout and Screen Display ................................................... 7-1
7.2.2 Operating Key Functions .............................................................. 7-2
(1) Alphanumeric Keys and Shift Keys .............................................. 7-2
(2) Function Keys ............................................................................... 7-2
7.2.3 Calling Up Menu Addresses Using the Operating Keys .............. 7-3
7.3 Setting Parameters Using the BT200 ................................................. 7-4
7.3.1 Parameter Summary .................................................................... 7-4
7.3.2 Parameter Usage and Selection .................................................. 7-6
7.3.3 Setting Parameters ....................................................................... 7-7
(1) Tag No. Setup ............................................................................... 7-7
(2) Calibration Range Setup .............................................................. 7-7
(3) Damping Time Constant Setup ..................................................... 7-8
(4) Output Signal Low Cut Mode Setup ............................................. 7-9
(5) Integral Indicator Scale Setup ...................................................... 7-9
(6) Unit Setup for Displayed Temperature ........................................ 7-11
(7) Operation Mode Setup ............................................................... 7-11
(8) Output Status Display/Setup when a CPU Failure ..................... 7-11
(9) Output Status Setup when a Hardware Error Occurs ................. 7-11
(10)Range Change while Applying Actual Inputs .............................. 7-12
(11) Zero Point Adjustment ................................................................ 7-12
(12)Test Output Setup ....................................................................... 7-14
(13)User Memo Fields ...................................................................... 7-14
7.4 Displaying Data Using the BT200 ..................................................... 7-14
7.4.1 Displaying Measured Data ......................................................... 7-14
7.4.2 Display Transmitter Model and Specifications ........................... 7-14
7.5 Self-Diagnostics ................................................................................ 7-15
7.5.1 Checking for Problems ............................................................... 7-15
(1) Identifying Problems with BT200 ................................................ 7-15
(2) Checking with Integral Indicator ................................................. 7-16
7.5.2 Errors and Countermeasures ..................................................... 7-17
8. MAINTENANCE ............................................................................................. 8-1
8.1 Overview ............................................................................................. 8-1
8.2 Calibration Instruments Selection ....................................................... 8-1
8.3 Calibration ........................................................................................... 8-1