AC Current Probe
Models SR701 and SR704
User Manual
DESCRIPTION:
The SR701/SR704 (Catalog #211 6.29 and #2116.30) a re designed fo r use in indus trial envi ronments. T he
ergonomic design allows th em to eas ily atta ch to cabl es or sm all bus ba rs. The “ci rcular ” jaws gu arantee a
very good accurac y and low pha se shift. T he probes hav e a measu rement ra nge up to 100 0Arms and are
compatible with any AC ammeter, multimeter, or other current measurement instrument with an input
impedance lower than 5Ω. To ac hiev e the stat ed acc urac y, us e the S R70 1/S R704 with a n am meter hav ing
an accuracy of 0.75% or better .
WARNING
The safety warnings are provided to ensure the safety of personnel and proper operation of the
instrument. Read the instruction completely.
• Use caution on any circ uit: potentially high voltag es and currents may be prese nt and may pose a
shock hazard.
• Do not use the probe if dama ged. Al ways co nnect th e cur rent pr obe to the m easuri ng devic e bef ore it
is connected around the conductor
• Do not use on non-insulated c onduct or with a potential to gr ound gr eater tha n 600V C AT III pollutio n
2. Use extreme caution when clamping around bare conductors or bus bars.
• Before each use, inspect the probe; look for cracks in housing or output cable insulation.
• Do not use clamp in wet environment or in locations that hazardous gases exist.
• Do not use the probe anywhere be yond the tactile barrier.
INTERNATIONAL ELECTRICAL SYMBOLS
This symbol si gnifi es t hat the c urre nt prob e is p rotect ed b y doubl e or r einforc ed ins ulat ion. Us e onl y
factory specified replacement parts when servicing the instrument.
This symbol signifies CAUTION! and requests that the user refer to the user manual before using
the instrument.
This is a type A current sensor. This symbol signifies that application around and removal from
HAZARDOUS LIVE conductors is permitted.
DEFINITION OF MEASUREMENT CATEGORIES
CAT II: For measurements performed on circuits directly connected to the electrical distribution system.
Examples are measurements on household appliances or portable tools.
CAT III: For measurements performed in the building installation at the distribution level such as on
hardwired equipment in fixed installation and circuit breakers.
CAT IV: For measurements performed at the primary electrical supply (<1000V) such as on primary
overcurrent protection devices, ripple control units, or meters.
RECEIVING YOUR SHIPMENT
Upon receiving yo ur shipm ent, mak e sure that the c ontent s are co nsistent with th e pack ing list. N otify your
distributor of an y missing i tems. If th e equi pment ap pears to b e damag ed, file a c laim im mediatel y with t he
carrier and notify your distributor at once, giving a detailed description of any damage.
SR701
SR704
ELECTRICAL SPECIFICATIONS
Current Range:
1mA to 1200A AC
Transformation Ratio: 1000:1
Output Signal: 1mA AC/A AC (1A AC at
1000A)
Accuracy and Phase Shift*:
Accuracy:
1mA to 100mA: ± 3% Reading ± 5mA
0.1 to 1A: ± 2% Reading ± 3mA
1 to 10A: ± 1% Reading
10 to 100A: ± 0.5% Reading
100 to 1200A: ± 0.3% Reading
P
hase Shift:
1mA to 100mA: Not Specified
0.1 to 1A: Not Specified
1 to 10A: ≤ 2°
10 to 100A: ≤ 1°
100 to 1200A: ≤ 0.7°
*Reference conditions: 23°C±3°K, 20 to 75% RH,
48 to 65Hz, external magnetic field <40A/m, no
DC component, no external current carrying
conductor, test sample centered.
Load impedance ≤ 1Ω.
Overload: 12 00A f o r 40m n on, 20m n o ff
Accuracy: Per IEC 185