Đồng hồ đo áp suất Retrotec DM32

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Đồng hồ đo áp suất Retrotec DM32
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Đồng hồ đo áp suất Retrotec DM32

Specifications for Digital Gauge Model:

DM32W

Dimensions:

5.8" × 3.6" × 1.4" (14.7 × 9.2 × 3.5 cm)

Weight:

12 oz (340 g)

Power:

4200 mAh LiPoly rechargeable battery.  Integrated on board charging circuit.

Up to 11 hours battery life on a single charge.

(Battery life and charge cycles vary by use and settings; actual results will vary.)

Screen type:

QVGA Color touchscreen LCD display

Screen dimensions:

3.2” (8.2 cm) diagonal, 2.6" × 1.9" (6.6 × 5.0 cm)

Microcontroller:

32 bit

Pressure channels:

2 independent pressure channels (“A” & “B”)

Pressure sensor type:

Digital

Pressure range:

DM32-4A 
-995 Pa to +995 Pa (-4 to +4 in W.C.)

 

DM32-20A 
-4,976 Pa to +4,976 Pa (-20 to +20 in W.C.)

 

* DM32-20A started shipping Jan 2015

* DM32-4A started shipping Oct 2017

 

DM32-10A 
-2,488 Pa to +2,488 Pa (-10 to +10 in W.C.)

Pressure resolution:

0.1 Pa (0.0004 in WC, 0.002  psf)

Pressure accuracy:

DM32-4A 
±1% of pressure reading or ±0.25 Pa (whichever is greater)

DM32-20A 
±1% of pressure reading or ±1.0 Pa (whichever is greater)

 

DM32-10A 
+/- 0.4% of pressure reading 22 or +/- .07 Pa @ 22 degree (C)

+/- 0.6% of pressure reading 22 or +/- .15 Pa @ 0 – 44 degree (C)

+/- 0.9% of pressure reading 22 or +/- 1 Pa @ 70 degree (C)

Pressure accuracy calibration meets:

USACE, ASTM E779-10, CGSB-149.10, EN 13829, UK ATTMA TSL1 and TSL2, NFPA 2001, ISO 14520, EN15004

Operating temperature:

-40 to 130 F (-40 to 85 C)

PC Connectivity options (MS Windows only):

Ethernet (direct or over network), USB (direct), Wireless via WiFi

WiFi 802.11 protocols:

b/g/n

Recommended calibration interval:

Every 5 years

Supported Units of Measurement and Results

Channel A:

Pressure: Pa, psf, or in WC

Channel B:

Pressure: Pa, psf, or in WC

Flow:  CFM, L/s, m3/s, m3/h

Flow/Area (Permeability):  CFM/sq ft, CFM/100 sq ft, CFM/1000sq ft, (m3/h)/m2, (L/s)/m2

Air changes per hour:  /h

Equivalent leakage area,  “EqLA”: sq ft, sq in, cm2

Effective leakage area,  “EfLA”: sq ft, sq in, cm2


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