Cal Test CT4422 User Manual

CT4422

User Guide

Cal Test Electronics

CT4422 Fused Probe DMM Electrical Kit, User Guide

© 2021 Cal Test Electronics. All rights reserved.
Cal Test Electronics products are covered by US and foreign patents, issued and

pending. Information on this publication supersedes all earlier versions. Specications

are subject to change without notice.

Made in Taiwan

Safety Notice and Symbols

This product is designed to IEC 61010 safety requirements

WARNING A warning statement calls attention to an operating procedure, practice, or

CAUTION A caution statement calls attention to an operating procedure, practice,

The following symbols may appear on the product or in its documentation:

Safety is compromised if instructions are not read, understood, and followed.

condition, which, if not followed correctly, could result in injury or death to
personnel.

or condition, which, if not followed correctly, could result in damage to or
destruction of parts or the entire product.

Caution, see documentation for details

Fuse inside

WARNING Never exceed the maximum interrupt current of the fuse. The fuse protects

WARNING Before use check fuse for continuity and good condition.

WARNING Install only specied fuse, or equivalent, sizing fuse to the required short

Never open fused probe while connected or energized.
Disconnect from all devices and leads before replacing fuse.
Clean with cloth lightly moistened with water only. Dry thoroughly before use.
Do not use if any part is damaged. All maintenance should be referred to qualied

service personnel only.

Do not use in wet or explosive atmosphere.
Always be aware of CAT environment

the equipment against short-circuit but not against over-currents.

circuit current.

Description

The CT4422 Fused Probe DMM Electrical Kit includes a 1,000 V 500 mA fast acting
fused probe to protect both equipment and personnel. Used for both handheld and
bench DMMs, this kit features a unique locking tip cover, fully insulated medium

1

Cal Test Electronics

alligator clips  tting conductors up to 7 mm, and silicone jacketed straight to right angle

4 mm sheathed banana plug test leads.

Fuse

• 6.3 x 32 mm, 0.5A, 1,000 V, 50 kA, p/n CT4049-0.5A

Speci cations

• Voltage Rating: 1,000 V CAT

III/600 V CAT IV, reinforced
insulation, pollution degree 2

• Current Rating: See rating on the

fuse (CT4300), 10 A (CT3754,

CT4439)

• Operating temperature: 0°C to

60°C (32°F to 140°F) and max
RH 85%; altitude up to 2000 m.

• Storage temperature: -20°C to

70°C (-4°F to 158°F)

CE Compliance

This product meets the essential
requirements of the applicable European
Directives as follows:

• Low-Voltage Directive (safety):

2014/35/EU
Standard EN 61010-031:2015
2nd Ed.

• Restriction of Hazardous

Substances Directive (RoHS):
2011/65/EU+AMD 2015/863

Fuse Replacement

• Disconnect from all devices and

test leads

• Unscrew fused probe body

by turning probe tip half
counterclockwise.

• Remove and replace fuse

• Screw probe pieces together

Tip Cover Removal

• Use small blade screwdriver to pry

up tab and slide cover off. Lifting
too much on tab can damage
and reduce the lifetime of the
cover.

Alligator Clip Attachment

• Remove tip cover and push

alligator clip directly onto 2 mm

tip.

2

Denitions

POLLUTION - addition of foreign matter, solid, liquid, or gaseous (ionized gases), that may produce a

reduction of dielectric strength or surface resistivity.

• POLLUTION DEGREE 2 - only non-conductive pollution occurs except that occasionally a

temporary conductivity caused by condensation is expected.

MEASUREMENT CATEGORY - classication of testing and measuring circuits according to the types

of mains circuits to which they are intended to be connected.

• MEASUREMENT CATEGORY II (CAT II) - measuring circuits connected directly to utilization

points of the low-voltage mains installation.

• MEASUREMENT CATEGORY III (CAT III) - measuring circuits connected to the distribution

part of the building’s low-voltage mains installation.

• MEASUREMENT CATEGORY IV (CAT IV) - measuring circuits connected at the source of

the building’s low-voltage mains installation

• The measurement category of a combination of fuse adapter with a test lead, probe, or other

accessory is the lower of assembled products

.

Service

If you have a need for technical or sales support, please contact us:

Industrial Process Measurement, Inc.

3910 Park Ave, Unit #7
Edison, NJ 08820 USA

[phone]

[e-mail]

https://www.instrumentation2000.com/

451041-001 Rev. A