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SCC-F Sample Gas Feed Unit
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Material of gas-conducting parts
PVDF, PTFE, PVC, EPDM, FPM, Novoprene

Power supply
Input voltage
230 V (207...250 V) AC, 50 Hz or 60 Hz ± 2 Hz
115 V (100...135 V) AC, 50 Hz or 60 Hz ± 2 Hz

Power consumption during operation
Diaphragm pump approx. 50 VA,
metering pump approx. 3.5 VA



Construction
Design: Surface-mounting housing 1/2 19 inch, 6 height units
Mounting: On the wall with the mounting brackets supplied or in a 19 inch cabinet / rack
Housing material and color: Sheet steel; light gray (RAL 7035), basalt gray (RAL 7012)
Degree of protection of housing: IP 20 to EN 60529

Gas Connections
PVDF coupling for tube of 6 x 4 x 1 mm

Electrical connections
Power supply: Screw clamp terminals for stranded or solid wire with max. 1.5 mm2
Status signals: Screw clamp termin max. 1.5 mm2

Electrical safety
Testing to EN 61010-1
Protective class: I
Overvoltage category / degree of contamination: III / 2
Protective separation: Electrical isolation of the 115 / 230 V AC power supply from the other current circuits by means of reinforced or double insulation. Functional extra-low voltages (PELV) on the low voltage side

Electromagnetic compatibility
Radio interference suppression: Class B to EN 55011
Interference immunity: Testing to EN 50082-2

Mechanical capabilities
Testing to EN 60068-2-27 and EN 60068-2-6
Transport:
Shock: 30 g / 18 ms / 18 shocks
Vibration: 1 g / ±0.15 mm / 5...150 Hz, 3 x 5 cycles
Operation
Vibration: 1 g / ±0.07 mm / 5...55 Hz, 3 x 2 cycles

Ambient conditions
Ambient temperature
Operation: +10...+50 °C,
Storage and transport: –25...+60 °C
Relative humidity
= 75 % annual average, occasional and slight condensation
permitted, = 90 % on 30 days/year

Options
Metering unit
By means of peristaltic pump, flow rate 15 ml/h, feed tank as accessory
for small SO2 measuring ranges (< 1000 mg/m3) or to avoid acid aerosols
I/O card
To connect the SCC-F sample gas feed unit and the SCC-C sample gas cooler to the AO2000 Series continuous gas analyzers via the system bus
– Display and monitoring of the cooler temperature
– Monitoring and processing of status signals of the SCC-F sample gas feed unit (condensate, flow rate)
– Control of an external solenoid valve for zero gas connection, 230 V, 50 Hz
– Digital inputs for monitoring condensate collecting bottles and reagent reservoirs

CSA certification
The SCC-F sample gas feed unit is certified to
– Class 2258 02 Process Control Equipment – For Hazardous
Locations and
– Class 2258 82 Process Control Equipment – For Hazardous
Locations – Certified to U.S. Standards
Class 1, Div. 2, Groups A, B, C and D, Temperature Code T4,
Maximum Ambient Temperature +50 °C.
Approval includes testing per applicable Canadian (CSA) and
US directives.
Certificate No. 1105720

Dimensional drawing (dimensions in mm)
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SCC-E Sample Gas Feed Unit
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Dimensional drawing (dimensions in mm)
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