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vi (PC-000834-MA Issue 5, December 2021) ENVEA UK Ltd
5.4.1 Changing the Display Smoothing Filter .............................................. 17
5.5 Scaling Methods ...................................................................................... 18
5.5.1 Scaling Method 1 –Scaling to % of 4-20 mA Output [SCAL] ................. 18
5.5.2 Scaling Method 2 –Setting a Scaling Factor [SF] ................................ 18
5.6 4-20mA Span [4-20mA] (Scaling Method 2 only)......................................... 19
5.6.1 Adjusting the 4-20mA Settings ......................................................... 19
6INSTRUMENT SETTINGS: ENGINEERING MENU [ENG] _____________ 20
6.1 Advanced Functions ................................................................................. 21
6.1.1 Switching to the Engineering Setup................................................... 21
6.2 4-20mA Filter [4_20 FLTR] ....................................................................... 21
6.2.1 Changing the 4-20mA Filter ............................................................. 21
6.3 Emission Alarm Settings [ALA1, ALA2] ....................................................... 22
6.3.1 Set Points [SP1, SP2] ...................................................................... 22
6.3.2 Averaging Filter .............................................................................. 22
6.3.3 Alarm Delay [DEL1, DEL2] ............................................................... 22
6.3.4 Change the Alarm Settings –Relay 1 [ALA1]...................................... 23
6.3.5 Change the Alarm Settings –Relay 2 [ALA2]...................................... 23
6.4 Plant Stop Function [PL.ST] ...................................................................... 23
6.4.1 Enable the Plant Stop Option............................................................ 24
6.4.2 Summary of Plant Stop Behaviour..................................................... 24
6.5 Comms Settings ...................................................................................... 24
6.5.1 RS-485 Settings [R485] .................................................................. 24
6.5.2 Changing the RS-485 Settings.......................................................... 24
6.5.3 RS-232 Settings [RS232]................................................................. 25
6.6 Engineering Settings [ENG] ...................................................................... 25
6.6.1 Trimming the 4-20mA Outputs [420Z, 420F] ..................................... 25
6.6.2 Test Functions [T.REL, T.DIG, T.LED] ................................................ 26
6.7 Modbus Diagnostics [MOD.R, MOD.E]......................................................... 26
6.7.1 Reading Modbus Register Values [MOD.R] ......................................... 26
6.7.2 Editing Modbus Register Values [MOD.E] ........................................... 26
7QUALITY ASSURANCE AND SELF-TESTS ________________________ 27
7.1 Sensor Tests (Options)............................................................................. 27
7.1.1 Sensor Checks –Pass Levels ............................................................ 27
7.1.2 Frequency of Sensor Checks............................................................. 27
7.1.3 Running Self-tests [RUN.T] .............................................................. 28
7.1.4 Viewing Self-Test Results................................................................. 28
7.1.5 Self-Test LED ................................................................................. 28
8MAINTENANCE____________________________________________ 29
8.1 Safety Information .................................................................................. 29
8.2 Inspecting and Cleaning the Sensor ........................................................... 29
8.3 Changing the Fuse (Mains-powered Sensors only) ....................................... 31
APPENDIX A _________________________________________________ 32
A.1 Resetting the Sensor [RSET]..................................................................... 32
GENERAL COMPLIANCE _________________________________________ 33
Waste of Electrical and Electronic Equipment (WEEE) Directive (2012/19/EU) . 33
RoHS Compliance Statement .................................................................... 33
List of Materials....................................................................................... 33
INDEX ______________________________________________________ 34
ENVEA SERVICE AND SUPPORT CENTRES ___________________________ 36