All Categories > Multigas Analyzers > Item # 7900P Series  
Download PDF Download PDF     Printable Page     Email Email This Page     Save To Favorites Save To Favorites

Item # 7900P Series, Portable Gas Analyzer for Heat Treating and Other Hydrogen-Based Industrial Processes


The Nova Model 7900P Series Heat Treat analyzers utilize a three channel high stability infrared detector for the simultaneous measurement of CO, CO2, and CH4 in exothermic or endothermic gas mixtures. In addition, the analyzer can be supplied with a fully compensated thermal conductivity cell for H2. A separate O2 detector can also be supplied for measuring low (PPM) or percent levels of oxygen in the atmosphere gas stream. Dew point is detected by a dielectric ceramic sensor and is available in standard and low ranges. All detected gases have a separate LCD digital readout and a linear recorder output. The customer may choose any combination of gases to be measured.

The 7900P series analyzers are complete with integral sampling pump, rechargeable battery, filters, flow meter, and sampling hose. Solenoid valves are used to isolate low range dew point and O2 sensors during purges and when analyzer is not in use to prevent ambient air contamination of the sensors and greatly reduce purge time during start-up.




 Specifications   Applications   Features   Options   Calibration   

Method of Detection
Customer may select one or more combinations of CO, CO2, H2, CH2, O2, or dew point

Ranges Available
0-10% , 0-100.0% CH4
0-10,000 PPM, 0-50.0% O2
0-100% NH3
0-2.00% , 0-100.0% CO2
0-20.0%, 0-100.0% CO
0-40.0%, 0-100.0% H2
-10 to +80°F(-23 to +26°C) Dew Point
-148 to +68°F(-100 to +20°C) Dew Point

Resolution
0.1% on % versions, 10 PPM on PPM versions

Accuracy & Repeatability
±1% of full scale

Drift
±0.5 % of full scale in 8 hours.

Response Time (T-90)
Approximately 20-30 seconds to 90% step range, following warm-up

Ambient Temperature Range
0 to 50 ºC
32 to 122 ºF

Linearity
±1% of full scale for each gas measured

Size & Weight
10" H x 10" W x 14" D (25 x 25 x 35 cm) @ Approx. 20 lbs (9 kg)
Physical data may vary depending on model and options selected

Power
115 VAC, 60 Hz
220 VAC, 50 Hz

Output Options
4-20 mA for each gas measured. 0-1 VDC or serial output also available

Primary Gas to be Measured
Carbon Monoxide (CO)

Industry Type
Heat Treating Atmospheres
Steel Making


 DOWNLOADS 

7900P Portable Multi-Gas Industrial Analyzers21
(PDF, 683KB)