User Guide

Fieldpiece
400AAC Current Clamp
Accessory Head
Model: ACH4
OPERATOR’S MANUAL
Description
The ACH4 current clamp is a small size accesso-
ry head for quickly reading up to 400 AC amps. The
new claw feature at the top of the clamp allows for
quickly picking out the wire you need to measure
and isolating it in the clamp. Once the current car-
rying conductor is isolated, the amperage is con-
verted to mVAC for reading directly on the meter.
The ACH4 works with the Fiedpiece “Stick”
meter, EHDL1 Electronic Handle, DL2 Data Logger,
or any digital multimeter (with mVAC range) con-
nected by Fieldpiece ADLS2 leads or AHDL1.
Use it your way
EHDL1 AHDL1 w/ Meter DL2 HS30
For your safety...
Do not attempt to measure any circuit in which
the circuit-to-ground voltage exceeds 600V rms.
Measurement of AC power sources with induc-
tive loads or AC power sources during electrical
storms may result in extremely high-voltage, high-
energy transients that could damage the meter and
consequently expose the user to a dangerous
shock hazard.
Inspect the test leads for isulation damage or
exposed metal. Replace or don’t use if suspect.
When disconnecting from a voltage measure-
ment, disconnect the “hot” lead first, then the com-
mon.
Discharge capacitors prior to making resistance
or capacitance measurements.
Work with others.
Use one hand.Hands, shoes, and floor must be
dry when taking measurements.
Avoid use of the ACH4 under humid or damp
conditions which could affect the dielectric with-
standing voltage of the clamp.
Specifications
Current range: 1AAC to 400AAC rms
Conversion rate: 1AAC to 1mVAC
Frequency: 50Hz to 60Hz
Operating temperature: 32°F to 122°F
Storage temperature: -4°F to 140°F
Temperature coefficient: 0.1 x (specified accura-
cy) per °F. (32°F to 64°F, 82°F to 122°F).
Altitude: 6561.7 Feet (2000m).
Resolution: 0.1A
Accuracy: ±(1.5%rdg + 0.2A), 1 to 20AAC;
±(2.5%rdg + 0.3A), 20 to 100AAC;
±(3.5%rdg + 0.5A), 100 to 400AAC
Maximum conductor diameter: 1.18 in. (30mm)
Accessories: operator’s manual
Safety: Designed to meet IE C61010-1 (EN61010-
1) and IEC61010-2-032 (EN61010-2-032),
CATIII 300V, class 2 and pollution degree II
indoor use comply with CE.
CAT.III
300V
400A
CLAMP
ACH4
AC Current
Clamp
1AAC / 1mVAC
400AAC MAX
!
WARNING
Do not attempt to measure 600V circuits.
!
!
Prime wire location
The ACH4 is a very accu-
rate current clamp. Even still,
there is a prime location for
the most accurate reading
possible. Try to place the
center of the conductor
going through the clamp
as shown.
Operation
1. Connect the ACH4 to Volts
and COM jacks. (Polarity is
not important.)
2. Set the multimeter to mVAC range.
3. Use the claw shape to pick out the conductor
you need to measure. Snap the jaws of the
ACH4 around one of the current-carrying con-
ductors. Make sure the jaws are tightly clamped.
4. For best accuracy, the wire should be centered
according to the arrow indents on the back of
the clamp.
5. Directly read the current value (in amperes) indi-
cated on the display.
5. If meter displays overload, change range to next
highest (2000mVAC or 2VAC. For 2VAC range,
multiply reading by 1000.)
Cleaning
When the case gets dirty, clean with a damp cloth
and mild detergent. Do not use abrasives or sol-
vents.
Symbols used
Caution, risk of electric shock.
Caution, refer to manual.
Double insulation.
Warranty
The product is warranted to the original purchas-
er against defects in material or workmanship for a
period of one (1) year from the date of purchase.
During the warranty period, Fieldpiece Instruments
will, at its option, replace or repair the defective unit.
This warranty does not apply to defects resulting
from abuse, neglect, accident, unauthorized repair,
alteration, or unreasonable use of the instrument.
Any implied warranty arising out of the sale of
Fieldpiece's products including but not limited to
implied warranties of merchantibility, and fitness for
purpose, are limited to the above. Fieldpiece shall
not be liable for incidental or consequential dam-
ages.
Service
Any defective ACH4 should be returned to
Fieldpiece Instruments for warranty service along
with proof of purchase. Call Fieldpiece for a return
material authorization (RMA). For out of warranty
service, send the ACH4 along with a check or
money order for $20.00 to Fieldpiece. Your ACH4
will be repaired or replaced at Fieldpiece's discre-
tion.
Fieldpiece Instruments, Inc.
580 West Central Ave. Suite A
Brea, CA 92821
Phone: [phone] Fax: [phone]
OFF
2000
CAT.III
300V
400A
CLAMP
CAT.III
300V
400A
CLAMP
CAT.III
300V
400A
CLAMP
CAT.III
300V
400A
CLAMP
ACH4
AC Current
Clamp
1AAC / 1mVAC
400AAC MAX
!
ACH4
AC Current
Clamp
1AAC / 1mVAC
400AAC MAX
!
ACH4
AC Current
Clamp
1AAC / 1mVAC
400AAC MAX
!
ACH4
AC Current
Clamp
1AAC / 1mVAC
400AAC MAX
!
CAT.III
300V
400A
CLAMP
ACH4
AC Current
Clamp
1AAC / 1mVAC
400AAC MAX
!
!