APNA-370/CU-2 Ambient Ammonium NH3 monitor/analyser


Contiuous monitoring for Ammonia in ambient air with high sensitivity.

APNA-370/CU-2 Ambient Ammonium Monitor measures increased nitrogen oxide (NOx) raected through oxide catalyst treatment as Ammonia (NH3) concentration with chemiluminescent (CLD) method. HORIBA’s original Cross-flow modulation method ensures long-term stability and reliable measuring value with 5ppb for min. detectable sensitivity.


ModelAnalyzer unit: APNA-370
Converter unit: CU-2
PrincipleOxidationcatalyst + Chemiluminescence
Range0-(0.1/0.2/0.5)/1 ppm or 0-1/2/5/10 ppm
Min. detectable sensitivity5 ppb
Repeatability±2.0%of F.S.
Linearity±2.0% of F.S.
Zero drift±2.0% of F.S./day
Span drift±2.0% of F.S./day
Sample gas flow rateApprox. 3.0L/min
IndicationMeasuring value, alarm
AlarmsAPNA-370: Calibration error, Battery error, Flow rate error, Pressure error, Converter temperature error, Power failure
CU-2: Catalyzer temperature error
Input/output0-1V, (2 lines from instant value, and integrated value or average value)
Contact inputoutput (range, mode, external reset, telemeter failure, alarm, etc.)
RS-232C (option)
Power100/110/115/120/220/230/240 VAC, 50/60 Hz
APNA-370: approx. 200VA
CU-2: approx. 200VA
DimensionsAPNA-370: 430(W) x 550(D) x 221(H) mm
CU-2: 430(W)x450(D)x310(H) mm
MassAPNA-370: approx. 21kg
CU-2: approx. 20kg






Environmental Protection


NH3 – Ammonia


Automotive, Bio Energy, Bioprocessing, Chemical, Environmental & water treatment, Fermentations, Food & Beverages, Forensics, Laboratories, Petrochemical, Pharmaceutical & Bio Pharma, Polymers, Power Plants, Pulp & Paper, Refinery, Security, customs, fire department, drug agencies, Semi-Conductor, Steel Plants, Sterilization, Universities