AMPROBE ACD-30P, ACD-31P Service Manual

ACD-30P & ACD-31P
1000A Clamp-on Power Meters

CAT

600V

These instruments combine the standard features of professional clamp-on
meters, with full Power analyzing capabilities! Measure: Active (W), Reactive
(VAR) and Apparent (VA) Powers along with dual display Power Factor readout.
Increase measuring efficiency with an optional PC interface kit.

• TRMS sensing

• Back light display (ACD-31P)

• AutoVA - Auto Selection of AC Volts,
DC Volts or AC Amps

• Measurements:

- AC/DC Voltage up to 600V, AC Current
up to 1000A, Resistance, Frequency

- Active (W), Reactive (VAR) & Apparent
(VA) Power with dual-display Power
Factor readout

-Temperature (ACD-31P)

• Optional PC interface capability

• Audible continuity

• Auto power off

TRUE

RMS

z

• Automatic polarity

• Low battery indication

• Peak hold

• Data hold

• Large, easy to read LCD display

• Accommodates conductors up to

1.77” (45mm) in diameter

• Carrying case, test leads,
batteries (installed), thermocouple
(ACD-31P), and manual included

• Voltage overload protection for all
functions up to 600V AC/DC

• Safety CAT III 600V

FEATURES ACD-30P ACD-31P BASIC ACCURACY

TRMS Measuremaent
AC Current

DC Voltage
AC Voltage
Resistance
Frequency

Active Power (W)

Reactive Power (VAR)

Apparent Power (VA)

Power Factor
Temperature

40.0 / 400.0 / 1000 A +/-(1.0% Rdg + 5 LSD) @ 50 and 60Hz

Yes

600.0V +/-(0.5% Rdg + 5 LSD)

600.0V +/-(0.5% Rdg + 5 LSD) @ 50 / 60 Hz

999.9 Ohms +/-(1.0% Rdg + 6 LSD)

5.00Hz to 500.0Hz +/-(0.5% Rdg +4 LSD)
0 to 600.0 kW +/-(2.0% Rdg + 6 LSD) @ Harmonics

Fund to 10th & PF > 0.7

0 to 600.0 kVAR +/-(2.0% Rdg + 6 LSD) @ Harmonics

Fund to 10th & PF > 0.7

0 to 600.0 kVA +/-(2.0% Rdg + 6 LSD) @ Harmonics

Fund to 10th

0.10 to 0.99 +/- 3 LSD @ Harmonics Fund to 21th

-58 F to 572 F

(-50 C to 300 C)

+/-(2.0% Rdg + 6F)

+/-(2.0 % Rdg + 3C)

www.AMPROBE.com

CAT

600V

TRUE

RMS

z

These instruments combine the standard features of
professional clamp-on meters, with full Power
analyzing capabilities! Measure: Active (W), Reactive
(VAR) and Apparent (VA) Powers along with dual dis­play Power Factor readout. Increase measuring
efficiency with an optional PC interface kit.

OPTIONAL ACCESSORIES PART NUMBER

PC Interface kit (PC connection cable with software) RS-232 KIT2
Line splitter (Energizer) A47L
5000A Clamp-on Current Transformer (50 to 1) CT50-1
3000A Clamp-on Current Transformer (50 to 1) CT50-2
Dual input Thermocouple adapter with two ther­mocouples -50°F to 600°F
Alligator Clips (For test leads) VRC-320

DKTA-620 and
two of TPK-56

Update Rate:
Power function: 1 per second nominal

ACA clamp-on, Ohm, Hz & Temperature

oltage,

V
functions: 4 per second nominal

Polarity: Automatic
Low Battery: Below approx. 2.4V
Operating Temperature: 0˚C to 40˚C
Relative Humidity: Maximum relative humidity

80% for temperature up to 31˚C decreasing
linearly to 50% relative humidity at 40˚C

Altitude: Operating below 2000m
Storage Temperature: -20˚C to 60˚C, < 80%

R.H. (with battery removed)
Temperature Coefficient: nominal 0.15 x (spec
ified accuracy)/ ˚C @(0˚C -18˚C or
28˚C -40˚C), or otherwise specified

Sensing: True RMS sensing for all models
Safety: Meets IEC61010-2-032 (1994),

EN61010-2-032(1995), UL3111-2-032(1999).
Measurement Category: III 600 Volts ac & dc

REPLACEMENT PARTS

(supplied with product)

Test leads with set of alligator clips

(alligator clips are not supplied with product)

Thermocouple TPK-59
Carrying case SV-U
Instruction Manual

Transient protection: 6.5kV (1.2/50µs surge)
for all models

Pollution degree: 2
E.M.C.: Meets EN61326(1997, 1998/A1),

EN61000-4-2(1995), and EN61000-4-3(1996)
an RF field of 3V/m:

otal Accuracy = Specified Accuracy + 45 digits

T
erformance above 3V/m is not specified
Overload Protections: ACA

rms continuous + & COM terminals (all

1000A
functions): 600VDC/V
Power Supply : standard 1.5V

or IEC LR03) battery X 2

24A

-

Power Consumption: V
Power functions: 10mA

HM & Temperature functions: 4mA typical
APO Timing: Idle for 17 minutes
APO Consumption: 10µA typical
Dimension: L224mm X W78mm X H40mm
Weight: 224 gm approx

Clamp-on jaws: AC

AC RMS

AAA Size (NEDA

oltage, ACA, Hz &

typical

PART NUMBER

MTL-90B

.AMPROBE.com

www

Jaw opening & Conductor diameter: 45mm max
Special features: Backlight display (model ACD-

31P & ACD-41PQ only); AutoVATM
(Auto Selection on ACV, DCV or ACA functions);
Power measurement of selectable W,
VAR & VA with dual-display Total Power Factor
features; Total harmonic distortion THD%-F
(model ACD-41PQ only); PEAK-rms HOLD

ELECTRICAL SPECIFICATIONS

Accuracy is ±(% reading digits + number of dig­its) or otherwise specified, at 23 oC ±5 oC
less than 75% R.H. & True RMS (all models)
ACV & ACA clamp-on accuracies are specified
from 0% to 100% of range or otherwise speci­fied. Maximum Crest Factor is as specified
below, and with frequency spectrums, besides
fundamentals, fall within the meter specified AC
bandwidth for non-sinusoidal waveforms.
Fundamentals are specified at 50Hz and 60Hz.

www.AMPROBE.com

AC Voltage

RANGE Accuracy

50Hz / 60Hz

600.0V 0.5% + 5d

45Hz ~ 500Hz

600.0V

1.5% + 5d

500Hz ~ 3.1kHz 9 (ACD-16 TRMS only)

600.0V 2.5% + 5d

CMRR: >60dB @ DC to 60Hz, Rs=1kΩ
Input Impedance: 2MΩ, 30pF nominal
Crest Factor: < 2.3 : 1 at full scale & < 4.6: 1 at half scale
ACV AutoVATM Threshold: 30VAC (40Hz ~ 500Hz only)

nominal

DC Voltage

RANGE Accuracy

600.0V 0.5% + 5d

NMRR: >50dB @ 50/60Hz
CMRR: >120dB @ DC, 50/60Hz, Rs=1kΩ
Input Impedance: 2MΩ, 30pF nominal
DCV AutoVATM Threshold: 2.4VDC nominal

Ohms

RANGE Accuracy

999.9Ω 1.0% + 6d

Open Circuit Voltage: 0.4VDC typical
Audible Continuity Tester
Audible threshold: between 10Ω and 300Ω.
Response time: 250µs

ACA Current (Clamp-on)

RANGE Accuracy

1) 2)

50Hz / 60Hz

40.00A, 400.0A, 1000A 1.0% + 5d

45Hz ~500Hz

40.00A, 400.0A 2.0% + 5d
1000A 2.5% + 5d

500Hz ~ 3.1kHz

40.00A, 400.0A 2.5% + 5d
1000A 3.0% + 5d

ACA AutoVATM Threshold: 1A AC (40Hz ~ 500Hz only)
nominal

Crest Factor:

< 2.5:1 at full scale & < 5.0:1 at half scale for 40.00A &

ranges

400.0A
< 1.4:1 at full scale & < 2.8:1 at half scale for 1000A range

1)

Induced error from adjacent current-carrying conductor:
< 0.06A/A

2)

Specified accuracy is from 1% to 100% of range and for
measurements made at the jaw center
conductor is not positioned at the jaw center, position
errors introduced are: Add 1% to specified accuracy for
measurements made WITHIN jaw marking lines away
from jaw opening) Add 4% to specified accuracy for
measurements made BEYOND jaw marking lines toward
jaws opening)

. When the

Temperature (ACD-31P only)

RANGE Accuracy

1)

-50˚C ~ 300˚C 2.0% + 3˚C

-58˚F ~ 572˚F 2.0% + 6˚F

1)

Add 3˚C (or 6˚F) to specified accuracy @

-20˚C ~ -50˚C (or @ -4˚F ~ -58˚F)
Type-K thermocouple range & accuracy not included

otal Power Factor (PF)

T

RANGE Accuracy

1)

0.10 ~ 0.99 F ~ 21st 22nd ~ 51st
3d 5d

1)

Specified accuracy @ ACA fundamental

Frequency

RANGE Accuracy

5.00Hz ~ 500.0Hz 0.5%+4d

Sensitivity (Sine RMS)

40A range: > 4A
400A range: > 40A
1000A range: > 400A
600V range: > 30V

Frequency

RANGE Accuracy

5.00Hz ~ 500.0Hz 0.5%+4d

40A range: > 4A

> 2A ; ACV fundamental > 50V

Power

RANGE Accuracy

1) 2)

0 ~ 600.0kVA F ~ 10th 11th ~ 46th 47th ~ 51st
@ PF = 0.99 ~ 0.1

RANGE Accuracy

2.0%+6d 3.5%+6d 5.5%+6d

1) 3)

0 ~ 600.0kW / kVAR F ~ 10th 11th ~ 25th 26th ~ 46th 47th ~ 51st
@ PF = 0.99 ~ 0.70
@ PF = 0.70 ~ 0.50
@ PF = 0.50 ~ 0.30
@ PF = 0.30 ~ 0.20

1)

Specified accuracy is for ACA clamp measurement at the center of jaws. When the
conductor is not positioned at the jaw center

2.0%+6d 3.5%+6d 4.5%+6d

3.0%+6d

4.5%+6d
10%+6d 15%+6d

, position errors introduced are:

10%+6d

Add 1% to specified accuracy for ACA measurements made WITHIN jaw marking
lines (away from jaw opening)

measurement made BEYOND jaw marking lines

Accuracy is not specified for

ACA

(toward jaws opening)

2)

Add 1% to specified accuracy @ ACA fundamental < 5A or ACV fundamental < 90V.
Accuracy is not specified @ ACA fundamental < 1A or ACV fundamental < 30V

3)

Add 1% to specified accuracy @

fundamental < 5A or ACV fundamental < 90V.

ACA

Accuracy is not specified @ ACA fundamental < 2A or ACV fundamental < 50V

A-lags 1)Indication:

lags

“A-lags” LCD annunciator turns on to indicate an inductive circuit, or Current

A

Voltage V (i.e., phase-shift angle£c is “+”).

1)

A-lags Indication is specified at 50/60Hz fundamental without harmonics, and at ACV >

90V, ACA > 9A, & PF < 0.95

www.AMPROBE.com

ACD-30P & ACD-31P
1000A Clamp-on Power Meters

Miramar, FL 33025 • Toll Free: 800-327-5060 • Phone: [phone] • Fax: [phone] • www.Amprobe.com

www.AMPROBE.com