Instruction manual

2.0 SPECIFICATIONS SM425 INSTRUCTION MANUAL
42500001 REV A 23
2.5.2 SM425CAL Automatic Calibration Unit
An automatic calibration unit supplies a specified flow of reference gas and calibration gas during
automatic calibration of the detector.
Specifications
Used when autocalibration is required for the separate type and instrument air is provided. The solenoid
valves are provided as standard.
Construction:
Dust-proof and rainproof construction:
NEMA 4X/IP67 solenoid valve only (excluding flowmeter)
Mounting:
2-inch pipe or wall mounting, no vibration
Materials:
Body; Aluminum alloy, Piping; SUS316 (JIS), SUS304 (JIS), Flowmeter; MA (acrylic resin).
Bracket; SUS304 (JIS)
Finish:
Polyurethane corrosion-resistance coating, mint green (Munsell 5.6BG3.3/2.9)
Piping Connection:
Refer to Model and Suffix Codes
Power Supply:
24V DC (from SM425), Power consumption; Approx.1.3W
Reference Air Pressure: Sample gas pressure + Approx. 150 kPa (690 kPa max.), (Pressure at
inlet of auto-calibration unit)
Air Consumption:
Approx. 1.5 l/min
Weight:
Approx. 3.5 kg
Ambient Temperature:
- 20 to + 55°C, no condensation or freezing
Ambient Humidity:
0 to 95% RH
Storage Temperature:
- 30 to + 65°C