Air Quality Detector

Brand: NOHAWK

Features:

The HT-9600 is an “indicative” instrument. It is not a ‘precision’ device in the mould of the Casella CEL-712 or TSI DustTrak.
It is however a very useful, inexpensive option for checking ‘breakthrough’ on recirculating particulate filters etc.
The manufacturer claims a +/- 20% error margin. In field trials running alongside a Casella CEL-712 we have found it to be surprisingly close to the CEL-712 recorded values
The HT-9600 is not suitable for accredited calibration in the normal sense (the calibration costs would be significantly greater than the instrument cost!) however, as an “indicator” of dust breakthrough from recirculating particulate filters it can be very effective
A suggested simple protocol for ‘indicative’ filter breakthrough would be as follows:- ▪ Run the unit in a clean environment and note the values recorded. Repeat to obtain 3 stable readings in total
Monitor at the outlet from a recirculation filter – again 3 times
Empirically, any increase in dust concentrations recorded would suggest that ‘breakthrough’ is occurring
If elevated dust readings are recorded at the filter outlet – investigate immediately
Experience in the field has shown that if filter ‘breakthrough’ is occurring the readings will usually be very significantly higher than those obtained from the clean environment set-up tests
The HT-9600 can also be used by site staff as part of their routine checks on filter integrity, with results being recorded in the LEV system Log Book.

Specification:

Test Particle Size	0.3μm/2.5μm/10.0μm
Light Source	Semiconductor lasers
Formaldehyde Range	12ug/m³
Accuracy	± 5% (HT-9600)
Temperature Range	0~50℃ /32~122℉
Accuracy	± 0.5℃
Humidity Range	0~100%RH
Accuracy	±3% RH
Display	320*240 2.8in LCD display
Counting Efficiency	100±10%@0.5μm
Sampling	Custom(1s~ 59min. 59s)
Sampling Frequency	1~99/Continuous
Alarm Levels	1~100,000(FED209E Standard)
Alarm Levels	2~9(ISO14464-1Standard)
Test Mode	Single/repeat/continuous/timer/Average
Data Storage	2000
Interface	USB
Operating Environment	5~45℃, <90% RH
Storage Environment	-20~60℃, < 90% RH

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SEM Equipment Sdn. Bhd. Malaysia

Malaysia

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