Snap-On EETA308D Manuale utente

Low Amp Probe

EETA308D

Reference Manual

SAFETY

WARNING

Risk of Personal injury

•Do not apply over 150 VAC (RMS) or DC.

•Do not change the battery while the

instrument is attached to a power

source. Make sure the unit power is

“OFF” before opening the battery

compartment.

•Keep yourself, test leads, clothing,

and other objects clear of electrical

connections and hot or moving

engine parts.

•Do not use if the probe or any part of the

probe (including the lead and connectors)

appear to be damaged or if a malfunction of

the instrument is suspected.

WARNING

Risk

of electrical shock

•This product is intended for Measurement

Category I (for example, automotive 12V

systems). Do not use it for Measurement

Categories II, III, and IV.

•Measurement Category I is for measurements

performed on circuits not directly connected to

MAINS or MAINS circuits (an example of

MAINS circuit is 120VAC or 240VAC

household or industrial circuits.

•Do not connect this product to MAINS or

MAINS circuits

•Do not exceed voltage limits between inputs

as indicated on the rating label.

•Use extreme caution when working with

circuits that have greater than 40 VAC or 24

VDC

•Do not connect to damaged or un-insulated

conductors.

SAFETY

Safety Standards

BSEN61010-1: 2001

BSEN61010-2-032: 2002

BSEN61010-031: 2002

150 V

RMS

, Category I

Rated Transient Overvoltage 800V

Pollution Degree 2

EMC Standards

BSEN 61326-2-

2:2006 1998 FCC

Part 15 Class B

SAFETY

The following symbols appear on the products:

Complies with the relevant European

standards

This equipment should for disposal, be

separated as Waste Electrical and

Electronic Equipment, according to the

EU directive 2002/96/EC

WARNING

Read instruction manual and safety

messages

before using product

Double/Reinforced Insulation.

To avoid electric shock; use

caution during installation and

use of this product. High

voltages and currents may be

present in circuit under test.

Read all instructions completely

before using this product.

Low Amp Probe

EETA308D

Reference Manual

March 2011

For Technical Assistance Call

1 800 424 7226 (North America)

+44 (0) 845 601 4736 (Unite King om)

For technical assistance in all other markets, contact

your selling agent

The information, specifications and illustrations in this

manual are based on the latest information available

at the time of publication. The manufacturer reserves

the right to make equipment changes at any time

without notice.

Contents Page

1.0 Introduction .......................................................... 2

2.0 Specifications ....................................................... 3

2.1 Electrical Data.........................................................3

2.2 General Data .........................................................3

3.0 Operating Instructions ........................................ 4

3.1 Connecting the Probe ............................................4

3.2 Switch on................................................................ 4

3.3 Low Amp Current Probe Zero Adjustment..............4

3.4 Error Factor ............................................................4

3.5 Reading the mV Scale............................................5

3.6 Current Measurement Applications......................... 5

4.0 Current Probe Characteristics........................... 10

5.0 Battery Replacement.......................................... 11

6.0 Cleaning .............................................................. 12

7.0 Warranty ............................................................. 13

8.0 Declaration of Conformity ................................. 14

JAWS

BATTERY COVER

ON / OFF & RANGE

SELECTOR SWITCH

ON / OFF & LOW

BATTERY INDICATING LED

ZERO BUTTON

BATTERY COVER

RELEASE SCREW

(UNDERNEATH)

1.0 INTRODUCTION

The Snap-on Low Amp Current Probe measures AC or

DC current with digital multimeters, oscilloscopes, and

other suitable recording instruments. The probe

provides accurate and reliable non-intrusive testing of

ignition coils, injectors, fuel pumps, relays, electric

motors, and parasitic draw. The jaws of the probe are

designed with a built in hook feature to help isolate wires

(refer to Figure 1).

Using advanced Hall Effect technology, the Snap-on Low

Amp Probe accurately measures currents from 10 mA to

60 Amps with a resolution of 1mA over the frequency

range of DC to 50 kHz. The probe has two scales, 0 to

20 Amps and 0 to 60 Amps. The Snap-on Low Amp

Current Probe outputs an analog voltage based on current

flow through the circuit. The output is millivolts AC or

DC. For example, in the 0 to 20-Amp range, the probe

output is 100 mV per 1 Amp. In the 0 to 60-Amp range,

the probe output is 10 mV per 1 Amp.

Figure 1

2.0 SPECIFICATIONS

2.1 Electrical Data

Current ranges : 20A / 60A AC PEAK or DC

Measuring range : +/- 20A / 60A

Output sensitivity : 100mV / 10mV/A

Accuracy (20A Range) : +/- 1% of reading +/- 5mA

Accuracy (60A Range) : +/- 2% of reading +/- 50mA

Resolution : +/- 1mA / 10mA

Load impedance : >10kOhm and ≤100pF

Conductor position

Sensitivity : +/- 1% relative to center

reading

Frequency range : DC to 50kHz (-3dB)

Temperature coefficient : +/- 0.1% of reading / °C

Power supply : 9V Alkaline,

PP3/MN1604

: 50 Hours, low battery

indicator

Working voltage (see Safety Standards section)

: 150V AC (RMS) or DC.

2.2 General Data

Maximum conductor size : 12mm diameter

Output connection : 4mm safety plugs

Output zero : Auto zero via push button

Cable length : 1.5 meters

Operating temperature

range : : 0 to +50 °C / 32 to +122 °F

Storage temperature range: -20 to +85 °C / -4 to +185 °F

Operating humidity : 15% to 85% (non

condensing)

Weight : 250g / 0.55lb

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