MMC272 Duct Static Pressure Transmitter. CSI 3-Part Specifications.

GENERAL

The MMC272 Duct Static Pressure Transmitter is used in airflow control systems. It converts duct static pressure input signals to a 4 to 20 milliampere output signal for pressure ranges from 0-1 to 0-10 inches water column (0-0.25 to 0-2.49 kPa). The MMC272 is intended for use with the DeltaNet Micro Central/Excel Plus System; DeltaNet R7044D, E, and F Excel Plus Controller; MicroCel™; and Excel 5000� System.

FEATURES

• 100 percent solid state

• Piezoresistive silicon sensing element

• Temperature compensated

• Protected against reverse polarity

DESCRIPTION

The MMC272 Duct Static Pressure Transmitter is used in airflow control systems. It converts duct static pressure input signals to a 4 to 20 milliampere output signal for pressure ranges from 0-1 to 0-10 inches water column (0-0.25 to 0-2.49 kPa). The MMC272 is intended for use with the DeltaNet Micro Central/Excel Plus System; DeltaNet R7044D, E, and F Excel Plus Controller; MicroCel™; and Excel 5000� System.

SPECIFICATIONS

Models:
MMC2725nA12Be

Power Supply:
24V dc nominal (18-35V dc)

Input Signal:
Duct static pressure

Output Signal:
4 to 20 mA

Maximum Pressure:
10 psi (69 kPa)

Media Compatibility:
Dry air only

Span and Zero Adjustments:
Potentiometers

Linearity:
�0.1%

Hysteresis:
�0.1%

Repeatability:
0.25% of span

Accuracy:
�1% of span

Compensated Temperature Range:
50 to 105F (10 to 40C)

Thermal Errors:
�0.01%/degree F nominal

Enclosure:
NEMA-1

Panel:
14 gage steel frame

Nominal Loop Resistance:
500 ohms

Air Connections:
Barb connector for 1/4-in. (4-mm) O.D. polyethylene tubing

Dimensions in Inches (mm):

Panel: 4-1/2 (114.3) x 2-1/2 (63.5) x 1-1/2 (38.1)

Enclosure: 4 (101.6) x 3 (76.2) x 2 (50.8)

Weight:

Panel: 0.55 lb (0.25 kg)

Enclosure: 1.07 lb (0.412 kg)

Mounting:

Panel or field (enclosure)