Texas Instruments SERIES 525 RAINFALL SENSORS, TR-525I MODEL TB-2012MBAROMETRIC PRESSURE SENSOR

Texas Electronics, Inc.

5529 Redfield St.

Dallas, Tx 75235

Model TB-2012M Barometer

Remove cover of TB-2012M and adjust for local pressure.

Refer to Pressure vs Voltage/Current Table under the Barometer section of the service manual.

				MICRO
				SWITCH
				USA
			U1	P1	P2
				C1		C99	C4
				C3	U2
			D3	R11			R3
	TB1			R12			R4
			D2	R8			R2
				R9			R1
			R21	C98			R18	R22
			D4	R13			R19
				R14			R20
			D1	R16
SIG.	COM.	+12V	COM.	C7			C5	REF
							R17
				C6			C2	SPAN
ELECTRIC BAROMETER
MODEL NO. TB-2012M					U3		R15
S/N 102795
								NULL

MODEL TB-2012M BAROMETRIC PRESSURE SENSOR

(Shown with cover removed)

DESCRIPTION

The Texas Electronics, Inc. TB-2012M Barometric Pressure Sensor uses an active solid-state device to sense barometric pressure. Self-contained electronics provide a regulated voltage to the solid-state sensor and amplification for the signal output. The unit's range of 26" to 32" or 878 mb to 1080 mb of mercury allows it to be used at elevations up to 1800 feet or 548.64 meters above sea level. The unit is temperature compensated from -18° to +50°C. if elevations above 1800 feet or 548.64 meters are required, contact the factory for higher elevation calibration.

SPECIFICATIONS

Calibration Range:

Supply Voltage:

Current Draw:

Accuracy:

Operating Temperature Range:

Calibrated Temperature Range:

Output:

Optional Output:

Weight:

Dimensions:

Warranty:

26" to 32" or 878 mb to 1080 mb 12 to 15 VDC

<15 mA +/- 1.3mb

-40° to +50°C -18° to +50°C 0-1 VDC 4-20 mA

2 lb. or 8.9 N or .907 kg. w/ 60 ft. or 18.3 meters cable

6" or 15.24 cm H x 5" or 12.7 cm W x 3" or 7.62 cm D (Single enclosure: double enclosure also available)

3 year