Greenlee CM-1100 Bedienungsanleitung
999 2185.5 © 1999 Greenlee Textron IM 1279 REV 1 8/99
CM-1100
CLAMP-ON METER
MEDIDOR CON PINZA
COMPTEUR A PINCES
INSTRUCTION MANUAL
MANUAL DE INSTRUCCIONES
MANUEL D’INSTRUCTIONS
Read and understand all of the instructions and safety
information in this manual before operating or servicing this tool.
Lea y entienda todas las instrucciones y la información sobre
seguridad que aparecen en este manual, antes de manejar estas
herramientas o darles mantenimiento.
Lire attentivement et bien comprendre toutes les instructions et
les informations sur la sécurité de ce manuel avant d’utiliser ou de
procéder à l’entretien de cet outil.
2
Description
The Greenlee CM-1100 Clamp-on Meter is intended to measure frequency and AC/DC current.
The DCA Auto Zero function eliminates the effect of residual magnetism, while the Peak Hold
feature allows peak measured values to be displayed.
Safety
Safety is essential in the use and maintenance of Greenlee tools and equipment. This
instruction manual and any markings on the tool provide information for avoiding hazards
and unsafe practices related to the use of this tool. Observe all of the safety information
provided.
Purpose
This instruction manual is intended to familiarize all personnel with the safe operation and
maintenance procedures for the Greenlee CM-1100 Clamp-on Meter.
Keep this manual available to all personnel.
Replacement manuals are available upon request at no charge.
and are registered trademarks of Greenlee Textron.
KEEP THIS MANUAL
CM-1100
3
Important Safety Information
This symbol is used to call your attention to hazards or unsafe practices which could
result in an injury or property damage. The signal word, defined below, indicates the
severity of the hazard. The message after the signal word provides information for
preventing or avoiding the hazard.
SAFETY ALERT SYMBOL
Immediate hazards which, if not avoided, WILL result in severe injury or death.
Hazards which, if not avoided, COULD result in severe injury or death.
Hazards or unsafe practices which, if not avoided, MAY result in injury or property
damage.
Read and understand this material before operating or servicing
this equipment. Failure to understand how to safely operate this
tool can result in an accident causing serious injury or death.
4
Important Safety Information
• Do not operate with the case open.
• Before opening the case, remove the jaw from the circuit and shut off the unit.
Failure to observe these warnings can result in severe injury or death.
Electric shock hazard:
Contact with live circuits can result in severe injury or death.
Electric shock hazard:
Do not use the unit if it is wet or damaged.
Failure to observe this warning can result in severe injury or death.
Electric shock hazard:
Do not measure current in uninsulated conductors with more than rated voltage
between conductor and ground.
Failure to observe this warning can result in severe injury or death.
CM-1100
5
Important Safety Information
• Do not attempt to repair this unit. It contains no user-serviceable parts.
• Do not expose unit to extremes in temperature or high humidity. See Specifications.
Failure to observe these precautions can result in injury and can damage the instrument.
Using this unit near equipment that generates electromagnetic interference can result
in unstable or inaccurate readings.
6
Identification
1. Display
2. Lever
3. Jaw
4. ON/OFF ( ) button
5. FREQ. (Hz) button
6. DCA Auto Zero (O A ) button
7. DC/AC ( /) button
8. Peak Hold ( ) button
9. Wrist Strap
10. Polarity Indicator
9
10
2
3
8
7
6
5
4
1
CM-1100
7
Display Icons
10.
-
+
Low Battery
11. DC DC measurement is selected.
12. AC AC measurement is selected.
13. Peak Hold is enabled.
14. k Kilo (103)
15. Hz Hertz Cycles/Second
16. ΩOhms
17. OL or –OL Overload
18 – Polarity Indicator
Symbols on the Unit
Read the instruction manual
Double Insulation
Battery
12
17
11
10
13 14–15 16
18
8
Operation
Electric shock hazard:
Contact with live circuits can result in severe injury or death.
1. Turn the unit ON.
2. See Typical Measurements for illustrations of typical uses.
3. Choose DC or AC measurement by pressing the DC/AC button. For frequency
measurement, press the FREQ./Hz button.
4. Press the DCA Auto Zero button to fully compensate for residual magnetism when making
DC current measurements.
5. Test the unit on a known functioning circuit or component.
• If the unit does not function as expected on a known functioning circuit, replace the
battery.
• If the unit still does not function as expected, send the unit to Greenlee for repair.
6. Take the reading from the circuit to be tested.
7. Press PEAK HOLD to hold the peak measured value on the display ( icon will be
displayed).
Note: Set clamp so that DC current is positive before using PEAK HOLD.
CM-1100
9
Typical Measurements
Clamp Around Wire
Notes:
• Clamp the jaw around one conductor only.
• Close the jaw completely.
• Center the wire in the jaw for highest
accuracy.
Note: Current flowing through the jaw in the
direction indicated by the arrow produces a
positive reading.
Clamp Around Line Splitter
Notes:
• The Greenlee 93-30 Line Splitter is divided.
One section renders amps; the other renders
amps multiplied by 10.
• Close the jaw completely.
• Center the line splitter in the jaw for highest
accuracy.
10
Accuracy
Accuracy is specified as follows: ±(a percentage of the reading + a fixed amount)
at 23 °C ±5 °C (73.4 °F ±9 °F), 0% to 75% relative humidity.
See the Specifications section for operating conditions.
Accuracy Table
Value Range Accuracy Overload Protection
Current 0 to 100.0 A ±(2.9% + 0.8 A)
(DC) 100 to 399.9 A ±(1.9% + 0.5 A)
400 to 1000 A ±(2.9% + 5 A)
Current 0 to 39.9 A ±(1.9% + 0.8 A)
(AC) 40 to 399.9 A ±(1.9% + 0.7 A) AC/DC 2000 A
400 to 1000 A ±(2.9% + 5 A) for 1 min.
Frequency* 20 Hz to 3.999 kHz ±(0.5% + 3 Hz)
4 to 10 kHz ±(0.5% + 30 Hz)
Peak Hold 0 to 399.9 A ±(3.0% + 1 A)
400 to 1000 A ±(3.0% + 10 A)
*Sensitivity: 6 A RMS (10 A RMS 1 kHz to 10 kHz)
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