Fieldpiece SC44 - Mini Clamp Meter User Manual download pdf

Using the best range

Autoranging meters automatically select the range

that gives you the best resolution. For example, when

measuring 24VAC, the meter will select the 40VAC

range and display "24.0". In the 400Vrange, you'd

see "24" and in the 4V range you'd see "OL" for over-

load. When an n (nano), m (micro), m (milli), K, or M

shows up in the display, you must multiply by 10

-9

-6

, 10

-3

, 10

, and 10

respectively.

You can manually select the range by pressing the

O button until you get the range you want. This can

keep the decimal from bouncing around when meas-

uring a parameter that varies from just a little below

the top of the range to a little over.

Backlight (SC46)

The SC46 has a backlight that allows the user to

read the display in any lighting conditions. Make sure

the area being tested is well lit. The backlight comes

on when the button is depressed and stays on for

60sec before turning off to conserve battery life.

Symbols used:

Caution, risk of electric shock

Caution, refer to manual.

Ground

Double insulation

OPERATOR’S MANUAL

CAT.III

CLAMP

400A

300V

NCV

For your safety...

General: Disconnect the test leads before opening

the case. Inspect the test leads for damage to the

insulation or exposed metal. Replace if suspect.

Never ground yourself when taking electrical meas-

urements. Do not touch exposed metal pipes, outlets,

fixtures, etc., which might be at ground potential.

Keep your body isolated from ground by using dry

clothing, rubber shoes, rubber mats, or any approved

insulating material. When disconnecting from a cir-

cuit, disconnect the "RED" lead first, then the com-

mon lead. Work with others. Use one hand for test-

ing. Turn off power to the circuit under test before cut-

ting, unsoldering, or breaking the circuit. Keep your

fingers behind the finger guards on the probes. Do

not measure resistance when circuit is powered. Do

not apply more than rated voltage between input and

ground.

All voltage tests: All voltage ranges will withstand

up to 600V. Do not apply more than 600VDC or

600VAC rms.

AC tests: Disconnect the meter from the circuit

before turning any inductor off, including motors,

transformers, and solenoids. High voltage transients

can damage the meter beyond repair. Do not use

during electrical storms.

Maintenance

Clean the exterior with clean dry cloth. Do not use

liquid.

Battery replacement: When the multimeter dis-

plays " " the battery must be replaced.

Disconnect and unplug leads, turn meter off, and

remove the battery cover. Replace both of the two

AAA (1.5V) batteries.

Limited warranty

This meter is warranted against defects in materi-

al or workmanship for one years from date of pur-

chase. Fieldpiece will replace or repair the defective

unit, at its option, subject to verification of the defect.

This warranty does not apply to defects resulting

from abuse, neglect, accident, unauthorized repair,

alteration, or unreasonable use of the instrument.

Any implied warranties arising from the sale of a

Fieldpiece product, including but not limited to

implied warranties of merchantability and fitness for a

particular purpose, are limited to the above.

Fieldpiece shall not be liable for loss of use of the

instrument or other incidental or consequential dam-

ages, expenses, or economic loss, or for any claim of

such damage, expenses, or economic loss.

State laws vary. The above limitations or exclu-

sions may not apply to you.

Obtaining service

Call Fieldpiece Instruments for one-price-fix-all

warranty service pricing. Send check or money order

for the amount quoted. Send the meter freight pre-

paid to Fieldpiece Instruments. Send proof of date

and location of purchase for in-warranty service. The

meter will be repaired or replaced, at the option of

Fieldpiece, and returned via least cost transportation.

www.fieldpiece.com

AUTO-RANGING DIGITAL

CLAMP METERS:

SC44, SC45, SC46

Description

The mini clamp-on meters are made for the tech-

nician who is looking for a small, low cost meter that

has most of the functions he needs, day in and day

out, without some of functions and convenience fea-

tures available on bigger meters.

Non-contact voltage

With the grey tip on the amp clamp head close to

an AC voltage, press and hold the NCV button. The

NCV LED will light and the beeper will beep. The

closer you get to AC voltage, the louder the beep.

The NCV function is sensitive enough to detect

24VAC on thermostats. (24V to 600V, 50Hz to 60Hz)

Capacitance (SC45 amd SC46)

For motor-start and motor-run capacitors.

Disconnect the capacitor from power first. If the

capacitor is connected to the meter and “dsc” symbol

is shown on the LCD, it means there is voltage exist-

ing in the tested capacitor and needs to be dis-

charged before testing. Short the terminals to dis-

charge the capacitors. Disconnect any resistors that

might be between the terminals of the capacitor.

Hold

Press HOLD once to keep the latest reading dis-

played on the meter in the memory. Press the HOLD

button again to go back to normal mode.

True RMS (SC46)

Digital multimeters use two different types of AC

sensing. The most common is average sensing, nor-

malized to a true RMS value of a sine wave. The

other is true RMS sensing. The actual true RMS

value is sensed. Either sensing method will give the

same results on a clean sine wave but they may dif-

fer on a non-sinusoidal waveform.

Temperature (SC45 and SC46)

Plug any K-type thermocouple directly into the

meter to measure temperature. Temperature meas-

urement will be accurate even in fast changing envi-

ronments because of excellent temperature compen-

sation. No thermocouple adapter is required.

Field Temperature calibration

(SC45 & SC46)

For accuracies of ±1°, calibrate to a known tem-

perature. A glass of stabilized ice water is very close

to 32°F (0°C) and is usually very convenient but any

known temperature can be used.

1. Select 400°F/C range and connect thermocouple.

2. Remove back case (2 screws on back, one near

clamp, other near base). Leave battery cover

attached so batteries stay

within back case.

3. Stabilize a large cup of ice

water.

4. Immerse the thermocouple

tip and let it stabilize.

5. To change the temperature

scale to °C, close the

jumper just below VR5.

6. Adjust VR5 calibration pot

with a small screwdriver to

get within 0.1° of 32°F

(0°C). Each 1/4 turn should adjust the tempera-

ture about 3°, no more than 10° total. There’s no

need rotating the screw more than 360°; doing so

gets you back to where you started.

7. Attach case without screws to preview the tem-

perature and continue until you have it dialed in.

Disable auto off

Set to OFF position, press and hold (SC44 and

SC45) or (SC46) button while turning rotary dial to

desired range position. Release the button when

LCD displays normally. Note: “APO” annunciator will

be missing from the display. The Auto Power Off

mode is on when “APO” indicated on the display.

VR5

Jumper

v14

1 2

Summary of Contents

Page 1

Using the best rangeAutoranging meters automatically select the rangethat gives you the best resolution. For example, whenmeasuring 24VAC, the meter w

Page 2

SPECIFICATIONSDisplay: 3¾ digit liquid crystal display (LCD) with a maxi-mum reading of 3999.Range : Manual ranging mode (SC44 & SC45), holdbutton

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Fieldpiece SC44 - Mini Clamp Meter User Manual

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