Home Gas Analyzer Indonesia Model 340 Portable O2 & H2 Analyzer (NOVA)
Model 340 Portable O2 & H2 Analyzer (NOVA)

The Model 341 is a dual range O2 version that can be switched between the standard range (0-25.0%) and a lower range (0-2.0%) using the same sensor. For applications requiring a PPM O2 measurement, a special low range version is available (Model 340L). The Models 340 & 341 have rechargeable battery operation, flow meter, filter, sample hose, and dual digital readouts. A recharger is included. Recorder outputs of 4-20mA or 0-1V are optional.

APPLICATIONS
Analysis of oxygen/hydrogen (O2/H2) in exothermic furnace atmospheres for copper, brass, or steel annealing, neutral heating, sintering, glass metal beds, or oxide coating of steel.

FEATURES
• Rugged modular design that is easy to operate and maintain
• Fast warm-up and response
• Long life electrochemical O2 sensor easily detects air infiltration into furnace gas
• Long-life thermal conductivity cell that provides accurate & stable readings of H2
• Separate digital meters with backlight
• Rechargeable battery operation
• Built-in sample pump, filter, & flow meter
• Weatherproof (WP) cabinet with clear Lexan cover

OPTIONS
• Recorder outputs of 0-1 V or -20 mA
• Sample pre-cooler for hot samples
• Condensate removal for wet applications
• Suitcase (K) style cabinet Available
• AC only power operation
• O2 & H2 alarms with LED
• Detachable/portable data logger
• Dual range O2 (0-25.0% & 0-2.00%) (Model 341WP)
• Special PPM O2 sensor (100 to 9,999 PPM) (Model 340L)

CALIBRATION
• On air for H2 zero and % O2 span
• On analyzed mixture of % H2 in N2 for H2 span and O2 zero
• On analyzed mixture of PPM O2 in N2 for PPM O2 span

 


MODELS
• 340L(K or BT - bench top) - % H2 & PPM O2 version(340L not available in WP enclosure)

• 341(K or WP) - % H2 & Dual Range O2

• 340WP - % O2 / % H2 (WP - weather-proof)
• 340K - % O2 / % H2; (K - suitcase-style)

SPECIFICATIONS

Description
Method of Detection: Long-life electrochemical O2 sensor, temperature-compensated thermal conductivity
(T/C) H2 cell, cannot be burned out due to loss of flow or changing gases
Ranges Available: 0-25.0% O2, 0-40.0% H2 (Model 340)
0-2.00% and 0-25.0% O2, 0-40.0% H2 (Model 341)
0-100 to 0-9,999 PPM O2, 0-40% H2 (Model 340L)
Resolution: 0.1 % on % ranges; 1 PPM on PPM O2 ranges
Accuracy and Repeatability: ± 2% of full scale
Drift: ± 1% of full scale per day
Response Time (T-90): Less than 10 seconds to 90% step change
Ambient Temperature Range: 55° to 120°F (12°-50°C)
Linearity: ± 2% of full scale
Size and Weight: WP style - approx. 11½" L x 8" W x 7¼" H @ 8 lbs (29 x 20 x 18 cm @ 3.6 kg)
K style - approx. 14" L x 10½" W x 6" H @ 12 lbs (36 x 27 x 15 cm @ 5.5 kg)
Power: 115VAC 60Hz for recharging (220VAC 50Hz available)
Output Options: 4-20 mA or 0-1 VDC
 
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