Figure A.4. 38 - Autocal General Arrangement & Wiring; A4 - Drift And Sample Rate - Ametek OXYvisor Installation, Operation & Maintenance Manual

Installation, Operation & Maintenance Manual
OXYvisor Optical Oxygen Analyzer
APPENDIX No. 4 - AutoCal General Arrangement and Wiring

A4 - Drift and Sample Rate

Auto O Calibration Setup
2
To setup the OXYvisor for Auto-Calibration (AutoCal) there are some additional hardware requirements.
• (QTY 3) Low-Watt Solenoid Valves to operate the Auto-calibration panel. One solenoid for the process isolation valve
and two for the calibration gases, zero and span.
• External Power Supply with proper Area Classification to power the solenoids. The OXYvisor has non-powered on/off
digital relays to control the AutoCal routine.
The AutoCal setup can be setup via the HMI, however it is fairly tedious and it is recommended to use the OXYvisor
OxygenAnalyzer software provided with the analyzer to set up this routine. Refer to the OXYvisor Software Instruction
Manual for detailed setup instructions.
Normal
Process Sample Gas Inlet
Operation
DO3 - Process
Solenoid
DO1 - NORMAL - CLOSED
Normally Open
DO2 - NORMAL - CLOSED
DO3 - NORMAL - OPEN
S
DO2 - Span Gas Solenoid
Normally Closed
S
DO1 - Zero Gas Solenoid
Normally Closed
Cal Zero
Process Sample Gas Inlet
Operation
DO3 - Process
Solenoid
DO1 - ACTIVE - OPEN ACTIVE - CLOSED
DO2 - NORMAL - CLOSED
DO3 - ACTIVE - CLOSED
S
DO2 - Span Gas Solenoid
Normally Closed
S
DO1 - Zero Gas Solenoid
ACTIVE - OPEN
Cal Span
Process Sample Gas Inlet
Operation
DO3 - Process
Solenoid
DO1 - NORMAL - CLOSED ACTIVE - CLOSED
DO2 - ACTIVE - OPEN
DO3 - ACTIVE - CLOSED
S
DO2 - Span Gas Solenoid
ACTIVE - OPEN
S
DO1 - Zero Gas Solenoid
Normally Closed
Figure A.4. 38 - AutoCal General Arrangement & Wiring
Terminal
24 V
24 V
24 V
Customer Supplied
Process Sample Gas Inlet
S
DO2 - Span Gas Solenoid
Normally Closed
(Supplied Seperately)
S
DO1 - Zero Gas Solenoid
Normally Closed
(Supplied Seperately)
O Sensor
DO3 - Process
Solenoid
Normally Open
(Supplied Seperately)
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