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For more information contact your Grainger Representative or visit

Grainger.com

.

Subject to change without notice.

Not responsible for typographical errors.

Testo 550 Digital Manifold

1-800-227-0729

www.testo.com

Technical Data

Units of measurement:

Pressure:

psi / kPa / MPa / bar

Temperature:

º

F /

º

C

Inputs:

Three 1/4" SAE pressure fittings

2 NTC thermister probe ports

Housing Material:

ABS/PA/TPU

Dimensions:

5.9" x 3.94 "

Display Size:

2.75" x 1.75"

Weight

approx. 3.1 lbs

testo 550 Digital Manifold Kit:

Includes: testo 550 digital manifold,

clamp probe, batteries, and

certificate.

0563 5505

Pipe Wrap Probe (NTC)

0613 4611

Ordering Information

testo 550 Digital Manifold

Delux Kit:

Includes: testo 550 digital

manifold, (2) clamp probes, batteries,

certificate and hard carrying case.

0563 5506

Clamp Probe (NTC)

0613 5505

Surface Probe (NTC), waterproof

0613 1912

Hard carry case for 550, probes,

hoses.

Air Probe (NTC)

0516 5505

Specifications

Measurement cycle time:

0.75 seconds

Selectable refrigerants:

No refrigerant, R12, R22, R123,

R134a, R290, R401A, R401B, R402A,

R402B, R404A, R406A, R407A,R407C,

R408A, R409A, R410A, R411A,

R413A,R414B,R416A, R417A, R420A,

R421A, R421B, R422A, R422B, R422D,

R424A, R427a, R434A, R437A, R438A,

R502,R503, R507, R600, R600a, R718

(H2O), R744 (only up to 50bar/ 725psi)

Sensors:

Pressure: 2 (high side / low side

sensors)

Temperature: 2 NTC thermistor

inputs

Measurement channels:

4

Measurement ranges:

Pressure:

-14.7 to 725 psig (-1 to 50 bar)

Temperature:

-60 to 300

º

F (-50 to 150

º

C)

Max Pressure:

870 psi (60 bar)

Humidity application

range:

10 to 90% RH

Resolution:

Pressure: 0.1 psi / 0.01 bar

Temperature: 0.1

º

F /

º

C

Accuracy:

Pressure: ± 0.75% of reading (± 1

digit)

Temperature: ± 0.5

º

F

Ambient Conditions:

Operating temperature:

14 to 122

º

F (-10 to 50

º

C)

Storage temperature:

-4 to 140

º

F (-20 to 60

º

C)

Power Supply:

4 AA (1.5V) batteries

Battery life: 150 hours

(without back-light on)

Display:

Type: Illuminated LCD

Updating of readings: 1 seconds

Response time: 0.5 seconds

Directives, standards

and tests:

EC Directive: 2004 / 108 / EC

0613 1712

ACCESSORIES:

PART NUMBER

WARRANTY DURATION:

2 years (3 yrs w/ product registration)