TIP PROBE ADAPTER ACCESSORIES
3900B SERIES
CT3940B
CT3942B
CT3944B
CT3946B
USER GUIDE
CAL TEST ELECTRONICS
Tip Adapter Accessories, User Guide
© 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. Specications are subject to
change without notice.
Made in Taiwan
SYMBOLS AND TERMS
The following symbols may appear on the product or in the documentation.
Caution Symbol (ISO 7000-0434) – Statements or instructions that
must be consulted in order to nd out the nature of the potential
hazard and any actions which must be taken.
Ce symbole de mise en garde (ISO 7000-0434) – indique qu’il
faut consulter les instructions an de déterminer la nature du danger
potentiel et déterminer toutes les mesures adaptées à prendre.
CAUTION
MISE EN GARDE
WARNING
AVERTISSEMENT
A statement calling attention to an operating procedure, practice, or
condition, which if not followed correctly, could result in damage to or
destruction of parts or the entire product.
Une mise en garde attire l’attention sur une procédure, une pratique
ou une condition d’utilisation qui, si elles ne sont pas suivies
correctement, pourraient endommager ou détruire une partie du
produit ou le produit entier.
A statement calling attention to an operation procedure, practice, or
condition, which if not followed correctly, could result in injury or death
to personnel.
Un avertissement attire l’attention sur une procédure, pratique
ou condition de fonctionnement qui, si elles ne sont pas suivies
correctement, pourraient entraîner des blessures, voire la mort de
l’utilisateur.
DEFINITIONS
POLLUTION (P) – addition of foreign matter solid, liquid or gaseous (ionized gases), that may
product a reduction of dielectric strength or surface resistivity.
• Degree 2 (P2) – only non-conductive pollution occurs except that
occasionally a temporary conductivity caused by condensation is
MEASUREMENT CATEGORY (CAT) – classifcation of testing and measuring circuit
expected.
according to the type of mains circuits to which they are intended to be connected.
• CAT II – measuring circuits connected to utilization points of the lowvoltage mains installation.
• CAT III – measuring circuits connected to distribution part of the building’s
low-voltage mains installation.
• CAT IV – measuring circuits connected at the source of the building’s lowvoltage mains installation.
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CAL TEST ELECTRONICS
GENERAL SAFETY INFORMATION
• Safety is compromised if instructions are not read, understood, and followed.
WARNING
AVERTISSEMENT
• Disconnect from all devices and sources before attaching test leads or adapters.
• Check for damage before usage – Do not use if any part is damaged.
• Do not use in wet or explosive atmospheres.
WARNING
AVERTISSEMENT
WARNING
AVERTISSEMENT
• If the probe assembly is used in a manner not specied by this user guide, the protections
provided may be impaired.
Never exceed the maximum voltage, current, or measurement
category of the probe and adapter assembly as congured for usage.
Ne jamais dépasser la tension maximale, le courant, ou le
catégorie de mesure de la sonde ou du produit assemblé.
Due to the high short-circuit currents which can be followed by
high energy levels in measurement categories CAT III and CAT IV,
measurements made within these locations are extremely dangerous.
Great precautions shall be made to avoid any chance of a shortcircuit.
Du fait des courants de court-circuit élevées qui se
traduisent par des niveaux d’énergie élevés dans les
catégories de mesure CAT III et CAT IV, les mesures faites
dans ces conditions sont extrêmement dangereuses.
Prendre toutes les précautions nécessaires pour éviter les
courts-circuits.
The measurement category of a combination of the probe, test lead,
and tip adapter is the lower of the assembled products.
La catégorie de mesure d’un produit constitué d’une
sonde, d’un câble, d’un adaptateur, est la catégorie la plus
faible d’un des composants du produit (sonde, câble ou
adaptateur).
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CAL TEST ELECTRONICS
DESCRIPTION
The Tip Adapters are UL listed accessories intended to enhance the versatility of Cal Test’s
3900 Series DMM probes. The adapters “snap-lock” onto the Ø2 x 19 mm tips of the probes
and provide additional methods to make solid and safe connections.
Note: # : Colors 0 black, 2 red; * Part number for black & red pairs
CT3940B-# / *CT3941B Extended Tip Probe Adapter
CT3942B-# / *CT3943B Alligator Clip Probe Adapter
CT3944B-# / *CT3945B Spade Lug Probe Adapter
CT3946B-# / *CT3947B Sprung-Hook Probe Adapter
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CAL TEST ELECTRONICS
SPECIFICATIONS
Model No.
Voltage: 300 V CAT II <30 VAC / <60 VDC
Current: 3 A 5 A
Operating Temperature: 5° C to 40° C; RH 80% Max.
Storage Temperature: -10° C to 55° C
Pollution Degree: P2
Altitude: 2000 m
CT3940-# /
CT3941
CT3942-# /
CT3943
CT3946-# /
CT3947
3 A
CT3944-# /
CT3945
5 A
SAFETY COMPLIANCE
UL Listed per UL 61010-031:2015 (2nd Edition)
CE COMPLIANCE
Low-Voltage Directive (LVD) 2014/35/EU
Standard EN 61010-031:2015
Reduction of Hazardous Substances Directive (RoHS 2) 2011/65/EU + AMD 2015/863
ANNEX III Exemption 6(c)
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CAL TEST ELECTRONICS
INSTRUCTION FOR USE
WARNING
AVERTISSEMENT
CAUTION
MISE EN GARDE
Probe Attachment:
• Remove the Locking Tip Cover from the probe.
WARNING
AVERTISSEMENT
• Use small at-blade screwdriver, or similar tool, to carefully lift locking tab and then slide cover
forward and o.
Disconnect from all voltage sources before accessory installation.
Se déconnecter de toutes les sources de tension avant
d’installer un accessoire.
Selected adapters have extremely sharp tips. Handle with Care.
Certains adaptateurs présentent des pointes extrêmement
acérées. Manipuler les avec précaution.
Locking tip cover must be in place when probing in CAT III and CAT IV
measurement categories.
L’embout de protection de la pointe doit être en place lors des
mesures dans les catégories de mesure CAT III et CAT IV.
CAUTION
MISE EN GARDE
Tip Accessory Attachment:
• Align tip adapter with 2 mm socket end facing exposed Ø2 mm probe tip.
• Slide adapter onto the probe tip and push until “snap” is felt.
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Do not use excessive lifting force on locking tab or permanent damage
may result.
Ne pas forcer en installant le dispositif de verrouillage, sinon
vous pouvez l’endommager de manière permanente.
CAL TEST ELECTRONICS
CLEANING
Clean adapters with cloth lightly moistened with water only. Dry thoroughly before use.
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INFORMATION
If you have a need for technical or sales support, please contact us.
Cal Test Electronics, Inc.
22820 Savi Ranch Parkway
Yorba Linda, CA 92887
714-221-9330
www.caltestelectronics.com
UserMan_3900TipAdapters_rB
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