Instruction manual

SM425 INSTRUCTION MANUAL 2.0 SPECIFICATIONS
16 42500001 REV A
EN 61326 Class A
EN 55011 Class A Group 1
EN 61000-3-2
AS/NZS CISPR 11
This instrument is a Class A product, and it is designed for use in an industrial environment.
Maximum Distance between Probe and Converter:
Conductor two-way resistance must be 10 Ω or less (when a 1.25 mm cable or equivalent is
used, 300 m or less.)
Construction:
Outdoor installation, equivalent to NEMA 4X/IP66 (with conduit holes completely sealed with a
cable gland)
Wiring Connection:
G 1/2, Pg13.5, M20 X 1.5 mm, 1/2 NPT, eight holes
Installation:
Panel, wall, or 2-inch pipe mounting
Case:
Aluminum alloy
Paint Color: Door:
Silver gray (Munsell 3.2PB7.4/1.2)
Case:
Silver gray (Munsell 3.2PB7.4/1.2)
Finish:
Polyurethane corrosion-resistance coating
Weight:
Approx. 6 kg
2.4.2 Functions
Display Functions:
Value Display; Displays values of the measured oxygen concentration.
Graph Display; Displays trends of measured oxygen concentration
Data Display; Displays maintenance data, such as cell temperature, reference junction
temperature, or maximum/minimum oxygen concentration.
Status Message; Indicates an alarm or error condition with flashing of the corresponding icon.
Indicates status such as warm-up or calibration by symbols.
Alarm, Error Display; Displays alarms such as “Abnormal oxygen concentration” or errors such as
“Abnormal cell emf.”.
Calibration Functions:
Auto-Calibration; Requires an Auto-calibration unit. It calibrates automatically at specified
intervals.
Semi-autocalibration; requires an Auto-calibration unit. Calibration is initiated either by the touch
panel or an input control signal.
Manual Calibration; Calibration performed by manually opening/closing the calibration gas valve.