LDetek LD8000 Specifications
LD8000MULTIG AS
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.
FEATURES:
• Unique compact chassis (4U rack mount) to cover up to
four measurements (N2, O2, H2O, CnHm)
• Bootloader integrated for software update via Ethernet
• Large scale measurement
• 4-20 mA outputs as standard
• Optional zero gas calibration free system
APPLICATIONS:
• Helium cryogenic installation
• Cryogenic truck loading station
• Process control
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• Range Identication Relay
• LAN/Web control
• Micro-valve for very low dead volume and fast purging time
• Low sample consumption
• Front adjustment valve for sample bypass ow to purge the
sample gas line before the analyzer
• Helium liquication plants
• Research center
2.0 PRODUCTS
233
SPECIFICATIONS:
8 mm
DETECTOR TYPES Plasma Emission Detector for N2 - O2 - H2O - CnHm
RANGE FOR N
RANGE FOR O
2
2
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
OPTIONS • Internal sampling system for zero,
GAS CONNECTIONS Sample: 1/8’’ compression ttings Vent: 1/8’’ compression tting
CALIBRATION GAS Zero: LDP1000 puried gas or Zero calibration gas
SAMPLE FLOW REQUIREMENTS 50 sccm for N2 channel (PED#1)
NITROGEN DOPING GAS FLOW
REQUIREMENT
RECOMMENDED MINIMUM
OPERATING PRESSURE
OPERATING TEMPERATURE
SUPPLY
ACCURACY
DRIFT
RESPONSE TIME
WEIGHT
0 – 10 ppm, resolution to 100 ppb 0 – 100 ppm, resolution to 1 ppm
0 – 3 ppm, resolution to 100 ppb 0 – 30 ppm, resolution to .1 ppm
• 4-20 mA isolated outputs
(user selectable)
• Microprocessor controlled
• 5.6” TFT intelligent LCD module
with Touch Screen
• Self diagnosis system
with auto-resolve alarm
• LAN/Web control
(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)
• Serial port: RS-232 / 422 / 485 / Probus
span and sample
• 2 alarm outputs (user programmable set point)
• Zero calibration gas free system
Span 2: 8.0 ppm H2O in Helium (application
free system
dependent)
Span 1: 8.0 ppm N2 and O2 + 3 ppm CH4 in Helium
(application dependent)
20 sccm for CnHm channel (PED#4)
20 sccm for O2 channel (PED#2)
Bypass ow per channel : 100 sccm
20 sccm for H2O channel (PED#3)
20 sccm for O2 channel (PED#2)
20 sccm for CnHm channel (PED#4)
20 sccm for H2O channel (PED#3)
4 PSIG (28 kPAG) optional 1 PSIG (7 kPAG)
10 °C to 45 °C
115 VAC, 50 – 60 Hz or 220 VAC, 50 – 60 Hz
Better than ± 1% full scale
< ± 1% over 24 hours
T90 < 60 seconds
45-60 lbs (20-27 kg) (depending of options)
ORDERING INFORMATION:
LD8000
MULTIGAS
2.0 PRODUCTS
DIMENSIONS:
32 in
595 mm
812.8 mm
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234
-X-X-X-X -XXX -X -XXX -X -XXX
N2: Nitrogen
O2: Oxygen
H2O: moisture
CnHm : hydrocarbons
23.43 in
482 mm 18.98 in
446 mm
17.56 in
TOP VIEW
Operating
Voltage:
120: 120 volts
220: 220 volts
177 mm
7 in
13 mm
0.51 in
A: Alarm option Integrated
sampling system
S1: 1 sample + zero + span
S2: 2 samples + zero + span
482 mm
18.98 in
FRONT VIEW
177 mm
SIDE VIEW
595 mm
23.43 in
7 in
101 mm
4 in
183 mm
7.2 in
C: Zero gas
free
system
Serial communication
RS2: RS-232
RS4: RS-485
PFB: Probus
450 mm
17.72 in
CUT OUT DIMENSIONS
FOR RACK MOUNTING
101 mm
4 in
0.31
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