AC Current Probe
Models SR601 and SR604
User Manual
DESCRIPTION: The SR601/SR604 (Cat. #2113.43/2113.44) are designed for use in industrial environments.
The ergonomic design allows them to easily attach to cables or small bus bars. The “circular” jaws guarantee
a very good accuracy and low phase shift. The probes have a measurement range up to 1000Arms
continuous and are compatible with any AC ammeter, multimeter, or other current measurement instrument
with an input impedance lower than 5Ω. To achieve the stated accuracy, use the SR601/SR604 with an
ammeter having an accur ac y of 0.7 5% 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 devi ce 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 CAT III pollution
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 signifi es t hat the c urre nt prob e is p rotect ed b y dou ble 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 s ystem.
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 protect ion 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 clai m imm ediatel y with the
carrier and notify your distributor at once, giving a detailed description of any damage.
ELECTRICAL SPECIFICATIONS
Current Range:
0.1 to 1000A AC, continuous cycle @ ≤ 1kHz
Transformation Ratio: 1000:1
Output Signal:
1mA AC/A AC (1A AC at 1000A)
Accuracy and Phase Shift*:
(*Reference conditions: 23°C±3°K, 20 to 75% RH, 48 to
65 Hz, external magnetic field <40 A/m, no DC
component, no external current carrying conductor, test
sample centered.) Load impedance 5Ω.
Overload: 1200 A for 40mn on, 20mn off
Accuracy: Per IEC 185
Frequency Range : 30Hz to 5kHz; current derating
above 1 kHz using the formula: