LD8000 MultiGas

Trace nitrogen, oxygen, moisture, hydrocarbons in helium

The LD8000 MultiGas is an online gas analyzer to monitor trace N2, O2, H2O, CnHm in Helium. The compact 4U unit has been designed to meet the requirements of the Helium cryogenic installations for online measurement.

THE LD8000 MultiGas SPECIFICATION

DETECTOR TYPES
  • Plasma Emission Detector for N2 - O2 - H2O - CnHm
RANGE FOR N2
  • 0 – 10 ppm, resolution to 100 ppb
  • 0 – 100 ppm, resolution to 1 ppm
RANGE FOR O2
  • 0 – 3 ppm, resolution to 100 ppb
  • 0 – 30 ppm, resolution to .1 ppm
RANGE FOR H2O
  • 0 – 3 ppm, resolution to 100 ppb
  • 0 – 30 ppm, resolution to .1 ppm
RANGE FOR CNHM
  • 0 – 3 ppm, resolution to 100 ppb
  • 0 – 30 ppm, resolution to .1 ppm
STANDARD FEATURES
  • Manual or autoranging (user selectable)
  • Microprocessor controlled
  • 5.6'' TFT intelligent LCD module with Touch Screen
  • Self diagnosis system with auto-resolve alarm
  • LAN/Web control
  • 4-20 mA isolated outputs (one for each component)
  • Alarm Historic
  • Safe calibration procedure to avoid any bad calibration
  • Digital ouputs for remote monitoring: (all dry relay contacts)
    • System status (1 output)
    • Range in use (1 output)
OPTIONS
  • Internal sampling system for zero, span and sample
  • Zero calibration gas free system
  • Serial port: RS-232 / 422 / 485 / Profibus
  • 2 alarm outputs (user programmable set point)
GAS CONNECTIONS
  • Sample: 1/8'' compression fittings
  • Vent: 1/8'' compression fitting
CALIBRATION GAS
  • Zero: LDP1000 purified gas or Zero calibration gas free system
  • Span 1: 8.0 ppm N2 and O2 + 3 ppm CH4 in Helium (application dependent)
  • Span 2: 8.0 ppm H2O in Helium (application dependent)
SAMPLE FLOW REQUIREMENTS
  • 50 sccm for N2 channel (PED#1)
  • 20 sccm for O2 channel (PED#2)
  • 20 sccm for H2O channel (PED#3)
  • 20 sccm for CnHm channel (PED#4)
  • Bypass flow per channel : 100 sccm
NITROGEN DOPING GAS FLOW REQUIREMENT
  • 20 sccm for O2 channel (PED#2)
  • 20 sccm for H2O channel (PED#3)
  • 20 sccm for CnHm channel (PED#4)
RECOMMENDED MINIMUM OPERATING PRESSURE
  • 4 PSIG (28 kPAG) optional 1 PSIG (7 kPAG)
OPERATING TEMPERATURE
  • 10 °C to 45 °C
SUPPLY
  • 115 VAC, 50 – 60 Hz or 220 VAC, 50 – 60 Hz
ACCURACY
  • Better than ± 1% full scale
DRIFT
  • < ± 1% over 24 hours
RESPONSE TIME
  • T90 < 60 seconds
WEIGHT
  • 45-60 lbs (20-27kg) (depending of options)

THE LD8000 MULTIGAS ORDERING INFORMATIONS

-X-X-X-X
  • N2: Nitrogen
  • O2: Oxygen
  • H2O: Moisture
  • CnHm: Hydrocarbons
 
-xxx Operating Voltage
  • 120 : 120 volts
  • 220 : 220 volts
-X A: Alarm option  
-XXX Integrated sampling system
  • S1: 1 sample + zero + span
  • S2: 2 samples + zero + span
-X  
  • C: Zero gas free system
-XXX Serial communication:
  • RS2: RS-232
  • RS4: RS-485
  • PFB: Profibus

Certification:

CE

In compliance with EMC directive 2004/108/EC, EN 61000-6-2:2005 for immunity & EN 61000-6-4:2007 for emissions.

LD8000 MultiGas Application Notes

LD16-06 - LD8000 MultiGas online gas analysis solution for high purity compressed Helium used in cryogenic installations.

AN-LD16-06 (398 ko)