Datasheet summary
Series 320 - 520
Engineering summary from PDF text extraction for Series 320 - 520. Verify every value with the OEM datasheet.
Summary
Product Identification
Series: 320 and 520 Gas Monitors
Key Features:
- High accuracy and functionality
- Easy to operate and maintain
- Control and data outputs
- Rapid T90 response
- High and low alarm outputs
- Interchangeable sensor heads
- Tamperproof and water resistant
- Data logging functionality (Series 520 and 525)
- Temperature and RH sensor (Series 325 and 525)
Operating Limits
- Operating temperature range: -35°C to 120°C
Feed Water
Available gas sensor heads:
- Ammonia (NH₃)
- Carbon dioxide (CO₂)
- Carbon monoxide (CO)
- Hydrogen (H₂)
- Hydrogen sulphide (H₂S)
- Methane (CH₄)
- Nitrogen dioxide (NO₂)
- Non methane hydrocarbon (NMHC)
- Ozone (O₃)
- Perchloroethylene
- Sulphur dioxide (SO₂)
- Volatile organic compounds (VOC)
Product Water
Measurement units: ppm or mg/m³
Electrical
- Analog output: 0-5V
- External signal functions: Low alarm, high alarm, control (150mA max)
- Power supply: 12V DC (power adaptor/charger supplied 100-250V AC)
- Rechargeable battery - UPS: Ni-MH 9.6V DC | 2100mA/h
Mechanical / Hydraulic
- Enclosure casing and rating: Fibre Reinforced Polycarbonate (FRP); IP41 NEMA 2 equivalent
- Enclosure size: 180 x 252 x 90 (mm); 7⅛ x 9⅞ x 3½ (in)
- Fixing: Screw fix
Additional Features
- Display type: LCD
- Reading functions: Minimum, maximum, average, 15-minute
- Alarm features: Low alarm, high alarm, mute (configurable)
- Display status indicators: Alarm, battery, sensor, standby
- Sensor calibration features: Zero calibration
- Digital interface (Series 520 and 525): Serial RS232
- Data logging capacity (Series 520 and 525): 4,300 data points (3,400 for Series 525)
- PC data logging (Series 520 and 525): Software and data cable supplied
- Clock function (Series 520 and 525): Real time
- Temperature and RH sensor (Series 325 and 525): Range -40°C to 124°C (-40°F to 255°F) | Range 0 to 100% RH
Approvals
- Part 15 of FCC Rules
- EN 50082-1: 1997
- EN 50081-1: 1992
Disclaimer: This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.
Official datasheet (PDF)
Curated from selected public technical reference material for discovery and preliminary comparison. This summary is not a substitute for a current certified manufacturer datasheet. Verify revisions and design limits before use.