Hydrocarbon Fluorometer

Main Features

• low weight
• easy handling
• corrosion free housing
• depth range up to 500 m
• output: standard 0 – 10 Volt
• optional serial output: RS-232 (characteristics: 1200, o, 8, 1)
• flash lamp control
• automatic compensation of dropping flash intensity
• optional: data acquisition software SST/SDA running under Windows® 95/98/Me

Materials

• housing: titanium
• screws: stainless steel
• connector: titanium, neoprene

Dimensions and weights

• L (housing): 220 mm
• Ø (housing): 88 mm
• L (overall): 280 mm
• W (in air): approx. 2,7 kg

Emitter

• Light source: Xenon flash lamp
• Repetition rate: 15 / sec
• Flash duration: approx. 1 µsec
• Flash energy: 7 mWsec
• Discharge capacitor: C = 100 nF
• Discharge voltage: 380 Volt
• CWL, BW: 254 nm, 25 nm
• Lamp lifetime: at 254 nm 50 % intensity drop 109 flashes(3 years of continuous operation)

Detector 1 (Flourescence)

• Detector: UV photodiode
• CWL: 360 nm
• BW: 50 nm
• PAH: naphthalene, acenaphthene, phenanthrene, chrysenepyrene, anthracene, benzo(a)

Detector 2 (Flash intensity)

• Detector: UV photodiode
• CWL: 254 nm
• BW: 25 nm

Electronics

• Supply voltage: 9 – 36 Volt
• Current consumption: 180 mA (12 V), 100 mA (24 V), 70 mA (36 V)
• Signal output: 0 – 10 Volt DC
• Serial output: RS-232, 1200, o, 8, 1 (optional)
• Response time: 500 msec
• U out 1: high range fluorescence
• U out 2: low range fluorescence
• U out 3: flash intensity