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Quick Start
1. For electrical testing, connect test leads to
"COM" and "+" jacks. For temperature testing,
remove test leads and slide TEMP switch to
the right.
2. Rotate the dial to your desired function. Press
SEL to cycle through the parameters within
the switch position.
3. Connect to test points and read measurement
on display.
Certifications
UL 61010-1, Second Edition
IEC/EN61010-1
IEC/EN61010-2-032
EMC EN61326-1
C-Tick (N22675)
WEEE
CATIII 600V, class II and pollution degree 2
indoor use comply with CE, RoHS compliant.
Description
Your SC54 is a swivel clamp meter specially
designed for the HVACR technician. The swivel
on the SC54 allows you to get a good viewing
angle on the display while taking amperage
readings through the clamp, regardless of the
wire orientation. The SC54 has the functions
you want as an HVACR technician.
Get fast manual ranging performance on an
easy to use auto-ranging clamp meter.
The SC54 is compatible with Fieldpiece
accessory heads allowing you to measure many
parameters on the SC54 display.
The bright blue backlight
O
F
F
MFD
NCV
VAC VDC
AAC
Hz
Hz
%
°C
°F
SC56
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SEL
HOLD
INRUSH
makes it easier
to use in any lighting condition. True RMS helps
you take more accurate voltage and amperage
readings on variable frequency drives.
The unique temperature circuit allows the
SC54 to get accurate temperature readings
faster when moving from a rooftop to a freezer.
The easily accessible field calibration allows
you to calibrate the temperature on your SC54
without hassle.
Controls
Rotate dial to the function you want to use.
Cycle through parameters or ranges
within a dial position
Press to illuminate backlight for 3 min
Press to freeze maximum or minimum
reading
Press to freeze the reading
Fieldpiece
Swivel
Clamp
Meter
OPERATOR'S
MANUAL
Model SC54
Display
SC57
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SC57
O
F
F
WIRELESS ENABLED
SEL
HOLD
HOLD
MAX
MIN
SYNC
SYNC
MAX
MIN
Battery Life Indicator
O
F
F
MFD
NCV
V
AC
V
DC
A
AC
Hz
Hz
%
°C
°F
SC56
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SEL
HOLD
INRUSH
Auto Power Off Enabled
O
F
F
MFD
NCV
V
AC
V
DC
A
AC
Hz
Hz
%
°C
°F
SC56
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SEL
HOLD
INRUSH
High Voltage Warning (+30V)
Manual Ranging
SC57
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SC57
O
F
F
WIRELESS ENABLED
SEL
HOLD
HOLD
MAX
MIN
SYNC
SYNC
MAX
MIN
Data Hold Mode
SC57
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SC57
O
F
F
WIRELESS ENABLED
SEL
HOLD
HOLD
MAX
MIN
SYNC
SYNC
MAX
MIN
Maximum Reading
SC57
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SC57
O
F
F
WIRELESS ENABLED
SEL
HOLD
HOLD
MAX
MIN
SYNC
SYNC
MAX
MIN
Minimum Reading
O
F
F
MFD
NCV
V
AC
V
DC
A
AC
Hz
Hz
%
°C
°F
SC56
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SEL
HOLD
INRUSH
Continuity Test
O
F
F
MFD
NCV
V
AC
V
DC
A
AC
Hz
Hz
%
°C
°F
SC56
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SEL
HOLD
INRUSH
Frequency Test (hertz)
O
F
F
MFD
NCV
V
AC
V
DC
A
AC
Hz
Hz
%
°C
°F
SC56
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SEL
HOLD
INRUSH
Resistance Test (ohms)
O
F
F
MFD
NCV
V
AC
V
DC
A
AC
Hz
Hz
%
°C
°F
SC56
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SEL
HOLD
INRUSH
Capacitance Test (farads)
O
F
F
MFD
NCV
V
AC
V
DC
A
AC
Hz
Hz
%
°C
°F
SC56
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SEL
HOLD
INRUSH
Micro Unit (10
−6
, one millionth)
SC57
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SC57
O
F
F
WIRELESS ENABLED
SEL
HOLD
HOLD
MAX
MIN
SYNC
SYNC
MAX
MIN
Milli Unit (10
−3
, one thousandth)
Specifications
Display:
10000 count display with backlight
Overrange:
(OL) or (-OL) is displayed
Measurement rate:
2 times per second, nominal
Zero:
Automatic
Operating environment:
32°F to 122°F (0°C to 50°C) at <70%
relative humidity
Storage temperature:
-4°F to 140°F (-20°C to 60°C), 0 to 80% RH
(with battery removed)
Accuracy:
Stated accuracy @ 73°F±9°F (23°C±5°C), <75%RH
Temperature coefficient:
0.1 x (specified accuracy) per °C [0°C to
18°C (32°F to 64°F), 28°C to 50° C(82°F to 122°F)]
APO (Auto Power Off):
Approx. 30 minutes
Power:
Single standard 9-volt battery, NEDA 1604, JIS 006P, IEC 6F22
Battery life:
100 hours typical alkaline
Low battery indication:
Battery icon will be empty (
). "batt"
displays along with a continuous beep when the battery voltage
drops below the operating level. Meter shuts off in 5 seconds.
Dimensions:
258.3mm(H) x 71.2mm(W) x 42.7mm(D)
Weight:
Approx. 278g including battery
Altitude:
6562 feet (2000m)
Overload protection:
600VDC or 600VAC rms unless otherwise
stated in the individual test sections.
Test leads:
Shall use UL listed test leads complied UL61010-031
rated CATIII 600V or above.
Functions
Voltage AC (VAC) (50Hz-400Hz)
Test power lines (120, 220, 480), test 24V going to controls, and
test for transformer failure.
Ranges:
0 to 600V
Resolution:
0.1V
Accuracy:
±(1.0% + 5 dgts) 50-100Hz
±(6%+5 dgts) 100-400Hz
True RMS:
Yes
Crest factor:
≤ 3
Input impedance:
1MΩ
Voltage DC (VDC)
Select VDC to measure DC voltage.
Ranges:
0 to 600V
Accuracy:
±(1.0% + 5 dgts) on 600V range
Resolution:
0.1V
Input impedance:
1MΩ
MilliVolt DC (mVDC)
Select the mVDC range to display measurements from any
Fieldpiece accessory head. See Modular Expandability section on
reverse page for more details.
Ranges:
1000mV and 10000mV
Accuracy:
±(0.5% + 5 dgts)
Resolution:
0.1mV or 1mV
Input impedance:
1MΩ
MicroAmps DC (µADC)
Microamps for flame rectifier diode test on a heater control.
Connect leads between flame sensor probe and control module and
turn heating unit on to read µA measurement. When the flame is on,
there should be a measurable µADC signal, typically under 10µADC.
Compare measurement to manufacture’s specification to determine if
replacement is necessary.
Ranges:
1000µA
Resolution:
0.1µA
Accuracy:
±(1.0% + 5 dgts)
Voltage burden:
1V
Overload Protection:
600VDC or 600VAC rms
Frequency (Hz) Through Leads
Check variable frequency drives. Check incoming voltages to
ensure they are cycling at 60Hz or desired frequency. Select VAC/Hz
and press SEL button.
Ranges:
20 to 400Hz
Resolution:
0.1Hz
Accuracy:
±(0.5% + 5)
Sensitivity:
5V rms on VAC range.
Capacitance (MFD)
Capacitors are one of the most failure prone components in
a HVAC/R system. Set to MFD/Ω/
O
F
F
MFD
NCV
V
AC
V
DC
A
AC
Hz
Hz
%
°C
°F
SC56
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SEL
HOLD
INRUSH
to test motor start and run
capacitors. Discharge the capacitor and disconnect from power and
resistors between terminals before testing.
Ranges:
0 to 1000µF
Resolution:
0.1µF
Accuracy:
±5% + 15 dgts
Overload Protection:
600VDC or 600VAC rms
O
F
F
MFD
NCV
V
AC
V
DC
A
AC
Hz
Hz
%
°C
°F
SC56
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SEL
HOLD
INRUSH
O
F
F
MFD
NCV
VAC VDC
AAC
Hz
Hz
%
°C
°F
SC56
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SEL
HOLD
INRUSH
SC57
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SC57
O
F
F
WIRELESS ENABLED
SEL
HOLD
HOLD
MAX
MIN
SYNC
SYNC
MAX
MIN
O
F
F
MFD
NCV
VAC VDC
AAC
Hz
Hz
%
°C
°F
SC56
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
SEL
HOLD
INRUSH
O
F
F
O
F
F
O
F
F
Discharge Cap First!
O
F
F
SC54
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
O
F
F
SEL
HOLD
HOLD
MAX
MIN
MAX
MIN
SYNC
MAX
MIN
O
F
F
SC54
AUTO OFF
TRUE RMS
CAT III
600V
TEMP
K-TYPE
30V
MAX
O
F
F
SEL
HOLD
HOLD
MAX
MIN
MAX
MIN
SYNC
MAX
MIN
O
F
F
SEL
RNG
Air Velocity
& Temperature
Head
English
READ
LO BATT
ON
LCD X
100
Average
(16 sec)
Metric
Real
time
AAV3
AUTO-
OFF
English
Metric
Ft/min
M/s
KM/hr
MPH
ºF
ºC
OFF
O
F
F
