Laser Gas Analyzer .LGA – 4500 (Trace level)
Features and Benefits
- Drift free, Maintenance free
- Accurate, real-time measurement
- No tape, No carrier gas, No light source or
probe replacement
- No interference from glycol, methanol or amine
- Reliable in harsh conditions
- ATEX certified
Application Areas
- H2O, H2S in natural gas
- Trace H2O, H2S in chemicals
| Gas | Detection Limit | Measurement Range |
| H2O in natural gas | 1% F.S. | 0-100ppm |
| H2S in natural gas | 1% F.S. | 0-50ppm,0-200ppm |
Composition
Technical Data
Specifications(H2O)
- Repeatability:≤±1%F.S.
- Linearity:≤±1%F.S.
- Span drift:≤±1%F.S/6 months
- Detection limit: 0.1ppm
- Instrument response time:≤1s*
- Warm-up time:≤15min
- Suggested gas flow: 1-5L/min
- *Gas flow＞ L/min,system response time (short
OPL 46cm):T90≤11s,
system response time (long OPL 112cm):T90≤21s.
Specifications (H2S)
- Repeatability:≤±1%F.S.
- Linearity:≤±1%F.S.
- Span drift:≤±2%F.S./6 months
- Detection limit: 0.1ppm
- Instrument response time:≤3s*
- Sample gas: dust/moisture/oil free (filtration≤0.5um)
- *Gas flow＞1L/min,system response time:T90≤30s
- Warm-up time:≤60min
- Suggested gas flow: 1-5L/min
Input & Outputs
- Analog outputs: 2 outputs 4-20mA, max. load 500Ω,
electrically isolated
- Relay outputs: 3 outputs 24V DC/1A
- Communications: RS485(or RS232/Modbus)
Operating Conditions
- Power supply:100-240V AC（H2O), 200-240V AC
(H2S)/48-63Hz
- Power consumption:≤12W(H2O);≤450W(H2S)
- Operating temperature: -20℃ to +50℃
- Protection class: Ip65
Approvals
- Laser class: class 1 conformant with IEC60825-1
- CE certified: conformant with 2004/108/EC