Lutron COH-9902SD เครื่องวัดคุณภาพอากาศ | CO (Carbon monoxide)

COH-9902SD ฟังก์ชั่นการวัด

เครื่องวัดคุณภาพอากาศ CO METER + Humidity/Temp

COH-9902SD จุดเด่น

SD Card Real-Time Data Logger: Saves measuring data along with time information (year, month, date, hour, minute, second) 

into the SD memory card, enabling easy download to Excel for further data analysis without extra software.

Multi-Parameter Measurement: Measures CO, humidity, temperature, dew point temperature, and wet bulb temperature, offering a comprehensive analysis of air quality and environmental conditions.

High Accuracy and Fast Response: Utilizes a galvanic cell type CO sensor for precise CO measurement and a precision capacitance sensor for accurate humidity measurement.

User-Friendly Design: Equipped with a large LCD with green backlight for easy reading, data hold function, and memory recall for maximum and minimum values. Includes an adjustable CO alarm setting with a beeper sound to alert when CO levels exceed the threshold.

Advanced Connectivity: Includes RS232/USB computer interface for data output, enhancing data management and integration with other systems.

Durable and Portable: Constructed with a robust housing and supplied with a hard carrying case, making it easy to carry and durable for long-lasting use in various environments.

COH-9902SD ช่วงการวัด

CO (Carbon Monoxide):

Range: 0 to 1,000 ppm

Resolution: 1 ppm

Accuracy: ± (5% + 2 ppm)

Response Time: < 30 seconds

Repeatability: < 2%

Zero Drift in Long Term: < 5 ppm

Sensitivity Drift: < 5% per year

Humidity:

Range: 10 to 95 %RH

Resolution: 0.1 %RH

Accuracy: 

≥70% RH: ±(3% reading + 1% RH)

<70% RH: ±3% RH

Temperature:

Range: 0 to 50℃, 32 to 122℉

Resolution: 0.1℃

Accuracy: 

±0.8℃ 

±1.5℉

Dew Point Temperature:

Range: -25.3 to 48.9℃

Resolution: 0.1℃

Range: -13.5 to 120.1℉

Resolution: 0.1℉

Wet Bulb Temperature:

Range: -21.6 to 50.0℃

Resolution: 0.1℃

Range: -6.9 to 122.0℉

Resolution: 0.1℉

COH-9902SD Power Supply

AAlkaline or heavy duty DC 1.5 V battery ( UM3, AA ) x 6 PCs, or equivalent.

ADC 9V adapter input. ( AC/DC power Resolution 0.1 ℉. adapter is optional ).

COH-9902SD ขนาดสินค้า

350 g/0.77 LB.

Meter 177 x 68 x 45 mm
Humidity probe 197 mm in length.
CO probe 150 x 38 x 38 mm

COH-9902SD อุปกรณ์ที่มาในชุด

Instruction manual:1 PC
Hard carrying case, CA-06: 1 PC
Humidity probe:1 PC
CO probe:1 PC

COH-9902SD อุปกรณ์เสริม

SD memory card ( 4 GB )
AC to DC 9V adapter.
USB cable, USB-01.
RS232 cable, UPCB-02.
Data Acquisition software, SW-E816
Excel data Acquisition software, SW-E802

COH-9902SD ข้อมูลจำเพาะ

Circuit

Custom one-chip of microprocessor LSI
circuit.
Display

LCD size : 52 mm x 38 mm
LCD with green backlight ( ON/OFF ).

Measurement

CO ( Carbon monoxide )
Humidity
Dew point Temp., Wet bulb Temp
Temperature

Sensor structure

Humidity Precision capacitance sensor
CO Galvanic cell type
Temp. Precision thermistor

Data logger Sampling Time Setting range

Auto 2 sec to 8 hour 59 min. 59 sec.
@ Sampling time can set to 1 second, but memory data may loss.
Manual Push the data logger button once will save data one time.
@ Set the sampling time to 0 second.
@ Manual mode, can also select the 1 to 99 position ( Location ) no

Data error no. 0.1% of total saved data max.
Data Hold Freeze the display reading.
Memory Recall Maximum & Minimum value.
Sampling Time of Display Approx. 1 second.

Data Output
RS 232/USB PC computer interface. (* Connect the optional RS232 cable)
UPCB-02 will get the RS232 plug. (* Connect the optional USB cable)
USB-01 will get the USB plug.

Power Current

Humidity measure-ment:
Normal operation ( w/o SD card save data and LCD Backlight is OFF) : Approx. DC 10.5 mA.
When SD card save the data and LCD Backlight is OFF) : Approx. DC 40 mA
CO measure-ment:
Normal operation ( w/o SD card save data and LCD Backlight is OFF) :Approx. DC 12.5 mA.
When SD card save the data and LCD ℉ Backlight is OFF) : Approx. DC 42.5 mA

Operating Temperature 0 to 50℃. (32 to 122℉).
Operating Humidity Less than 80% R.H.