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H301 Ss Environmental Control System T ester  The H301 Series Environmentl Control System (ECS)  Tester mesures n isplys prmeters require to test n troubleshoot ircrt heting n ir conitioning systems. These prmeters inclue tempertures, pressures, resistnces, aC n dC voltges, n dC currents. House in wheele ccessory cse tht hols cbles, pressure hoses, pters n temperture probe, the tester comes complete with ll require instrumenttion to mximize mission reiness. Temperature System  Typiclly, the ECS Tester mesures tempertures o the cockpit ir supply, the vionics cooling ir, the mniol n mbient ir. a precise, internlly-gene rte temperture signl is lso vilble to veriy proper opertion o the H301 tempertur e mesuring circuitry. Pressure System  The pressure mesuring system inclues our iferent pressure trnsucers tht mesure rom 0 to 20 inches o H 2 0 n rom 0 to 15, 0 t o 60, n 0 to 300 p sig. a single pressure cn be connecte to the 15 inch H 2 0 trnsucer, while our pressures, selectble by eck- mounte vlves, cn be connecte to ech o the other three psig trnsucers. Multimeter  The ECS Tester lso inclues n utomtic rnging multimeter tht permits the opertor to mesure voltges, currents n resistnces to i in troubleshooting vlves, controllers n sensors in the environmentl control system. Howell Instruments, Inc. 8945 South Freeway Fort Worth, Texas 76140 www.howellinst.com 817-336-7411 Fax: 817-336-7874 [email protected] Port able engine teSt SetS & trimmerS

H301

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H301 Ss

Environmental Control System Tester The H301 Series Environmentl Control System (ECS) Tester mesures n isplys prmeters require

to test n troubleshoot ircrt heting n ir

conitioning systems. These prmeters inclue

tempertures, pressures, resistnces, aC n dC

voltges, n dC currents.

House in wheele ccessory cse tht hols

cbles, pressure hoses, pters n temperture

probe, the tester comes complete with ll require

instrumenttion to mximize mission reiness.

Temperature System

 Typiclly, the ECS Tester mesures tempertures o the

cockpit ir supply, the vionics cooling ir, the mniol

n mbient ir. a precise, internlly-generte

temperture signl is lso vilble to veriy proper

opertion o the H301 temperture mesuring circuitry.

Pressure System

 The pressure mesuring system inclues our iferent

pressure trnsucers tht mesure rom 0 to 20 inches

o H20 n rom 0 to 15, 0 to 60, n 0 to 300 psig. a

single pressure cn be connecte to the 15 inch H20

trnsucer, while our pressures, selectble by eck-

mounte vlves, cn be connecte to ech o theother three psig trnsucers.

Multimeter

 The ECS Tester lso inclues n utomtic rnging

multimeter tht permits the opertor to mesure

voltges, currents n resistnces to i in

troubleshooting vlves, controllers n sensors in the

environmentl control system.

Howell Instrument

8945 South Free

Fort Worth, Texas

www.howellinst.

817-336-741Fax: 817-336-7

info@howellinst.

Portable engine teSt SetS & trimmerS

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Temperature

Input Signal Platinum resistance probe

Range –65 to 999 °F in 1 °F incrementsPressure

Input Pressure

 Transducer Ranges 0 to 15.0 inches H20

0 to 15.0 psig

0 to 60.0 psig

0 to 300 psig

DC Current

Range 0 to 50.00 mA

0 to 500.0 mA

DC Volts

Range 0 to 500 mV

0 to 1 VDC

0 to 5 VDC

0 to 50 VDC

AC Volts

Range 0 to 500 VAC

ResistanceRange 0 to 100 ohms

0 to 1,000 ohms

0 to 10,000 ohms

0 to 100,000 ohms (10 ohm increments)

Power Required 28 (±4) VDC, 1.5A maximum

Dimensions (excluding handle and wheels)

Instrument Case 9.75” H x 16 “ W x 9.75” D

Accessory Case 28” H x 21.5” W x 22” D

Weight 63.5 lbs (including accessories)

©2009 Howell Instruments, Inc. PET301

Howell Instruments, Inc. • 8945 South Freeway • Fort Worth, Texas 76140www.howellinst.com • 817-336-7411 • Fax: 817-336-7874 • [email protected]

Display and Deck Lighting

 The ECS Tester uses 0.4-inch high, seven segment, LEd

isply. a isply test button n isply brightness control

re lso provie, n light locte in the li o the ECS

 Tester provies eck lighting uring nighttime opertion.

Spcfcs

Portable engine teSt SetS & trimmerS