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What precautions should be taken before using the AEMC INSTRUMENTS 193-24-BK compatible current probes and sensors?

The protection assured by the current probe can be compromised if it is used in a way that is not recommended by the manufacturer. Follow these precautions:

• Comply with the rated maximum voltage and current, and the measurement category. Do not use the current probe on networks where the voltage or category exceeds those specified.

• Comply with the conditions of use (e.g. temperature, humidity, altitude, degree of pollution, location).

• Do not use the current probe if its housing is open, deteriorated, or incorrectly reassembled. Before each use, check the integrity of the insulation of the unit, jaws, clamps, housing, and leads.

• Do not subject the current probe to water or other liquids.

• Keep the jaw contacts of the clamp absolutely clean.

• Use suitable personal protective equipment when hazardous voltages may be accessible in the installation where the measurement is made.

• Any repairs must be carried out by accredited skilled personnel.


What do the symbols on the AEMC INSTRUMENTS 193-24-BK and compatible probes mean?

Warning symbol WARNING, risk of DANGER! The operator must refer to these instructions whenever this danger symbol appears.
Electric shock symbol CAUTION! Risk of electric shock. The voltage at the parts marked with this symbol may be dangerous.
Authorized application symbol Application or withdrawal authorized on conductors carrying dangerous voltages. Type A current sensor as per IEC 61010-2-032.
Not authorized application symbol Must not be applied to or removed from conductors at dangerous voltages. Type B current sensor as per IEC 61010-2-032.
Equipment is protected by double insulation.
🔋 Battery
Important instructions to read and to fully understand.
ℹ️ Useful information or tip to read.
CE The CE marking guarantees conformity with European directives and with regulations covering EMC.
🗑️ The trash can with a line through it means that in the European Union, the product must undergo selective disposal for the recycling of electric and electronic material, in compliance with Directive WEEE 2002/96/EC.

What are the definitions of the Measurement Categories (CAT) for the AEMC INSTRUMENTS 193-24-BK?

CAT IV: Measurement category IV corresponds to measurements taken at the source of low-voltage installations. Example: power feeders, counters and protection devices.

CAT III: Measurement category III corresponds to measurements on building installations. Example: distribution panel, circuit-breakers, machines or fixed industrial devices.

CAT II: Measurement category II corresponds to measurements taken on circuits directly connected to low-voltage installations. Example: power supply to domestic electrical appliances and portable tools.


What should I do upon receiving my shipment of AEMC INSTRUMENTS 193-24-BK compatible probes?

Upon receiving your shipment, make sure that the contents are consistent with the packing list. Notify your distributor of any missing items. If the equipment appears to be damaged, file a claim immediately with the carrier and notify your distributor at once, giving a detailed description of any damage. Save the damaged packing container to substantiate your claim.


What are the control features of the AEMC INSTRUMENTS 193-24-BK AmpFlex® sensor?

1. Flexible sensor

2. Sensor opening connector

3. Shielded lead

4. Custom 4-pin input connector


What are the control features of the MiniFlex® Model MA193-BK?

1. Flexible sensor

2. Sensor opening device

3. Shielded lead

4. Custom 4-pin input connector


What are the control features of the AC/DC Current Probe Model J93?

1. Jaws

2. 4-point CA connector

3. Safety guard

4. Zero adjustment knob

5. Power ON/Low battery indicator

6. Three-position switch: ON, OFF, battery test


What are the control features of the AC Current Probe Models MN93-BK & MN193-BK?

1. Jaws

2. Protective guard

3. Two-position range switch (MN193 only)

4. Jaw opening lever

5. Shielded lead

6. Custom 4-pin input connector


What are the control features of the AC Current Probe Model MR193-BK?

1. Jaws

2. Protective guard

3. Jaw opening lever

4. Two-position range switch

5. Shielded lead

6. Zero adjustment

7. Custom 4-pin input connector


What are the control features of the AC Current Probe Model SL261?

1. Jaws

2. Zero adjust knob

3. Range selection switch

4. Battery compartment screw

5. Battery compartment cover

6. BNC Adapter (sold separately – Cat. #2140.40)


What are the control features of the AC Current Probe Model SR193-BK?

1. Jaws

2. Protective guard

3. Jaw opening lever

4. Shielded lead

5. Custom 4-pin input connector


How do I operate the AEMC INSTRUMENTS 193-24-BK and compatible current probes/sensors?

The current probes and flexible sensors measure current in a conductor or bus bar without opening the circuit.

1. For three-phase measurements, use the color-coded ID markers to associate a color for each current input to match the phase identifiers on the measured system.

IMPORTANT NOTE: Always connect the probes or sensors with the indicating arrows pointing toward the load.

2. Connect the current probe or sensor to the current terminals of the instrument.

For Rigid Probes:

• Press the jaw opening lever on the probe to open the jaws.

• Clamp the probe around the conductor to be tested. For best results, center the conductor in the jaws of the clamp.

For AmpFlex® and MiniFlex® Sensors (like the AEMC INSTRUMENTS 193-24-BK):

• To open the AmpFlex® sensor, press simultaneously on both sides of the opening connector.

• To open the MiniFlex® sensor, press the opening device.

• Clamp the sensor around the conductor to be tested. For best results, center the conductor in the jaws of the clamp.

• Close the sensor by pushing the moving part into the connector until it clicks.

NOTE: For details of the measurement configuration and technical specifications, refer to the user manual of the instrument the current probe is being used with.


What are the specific operating instructions for the MR193 and SL261 probes?

MR193: Set the switch to 1mV/A; the ON indicator will light up.

SL261: Set the switch to 10mA or 100mA/A; the ON indicator will light up.

• Connect the probe to the instrument.

• Adjust the zero by turning the potentiometer with no conductor in the jaws of the clamp.

• When the measurement is finished, turn the probe switch to OFF.


What are the electrical specifications and compatibility for the AEMC INSTRUMENTS 193-24-BK and other compatible probes?

NOTE: The measurement ranges specified are for the probes and sensors. In some cases, they may differ from the ranges that can be measured by the instrument with which they are used.

Model Measurement Range Compatibility
AmpFlex® 193-24-BK (1) 24″ (610mm) 200mA to 10kAAC (2) (12,000A) (3) 8333, 8336 & PEL Series
AmpFlex® 193-36-BK (1) 36″ (910mm) 200mA to 10kAAC (2) (12,000A) (3) 8333, 8336 & PEL Series
AmpFlex® 196A-24-BK (1) 24″ (610mm) 200mA to 10kAAC (2) (12,000A) (3) 8435
MiniFlex® MA193 (1) 10″ (250 mm) 200mA to 3000A (10,000A peak) 8333, 8336 & PEL Series
MiniFlex® MA193 (1) 14″ (355 mm) 200mA to 3000A (10,000A peak) 8333, 8336 & PEL Series
J93 50 to 3500; 50 to 5000 (DC only) 8333, 8336, 8435 and PEL
MN93 2 to 240AAC (I >200A not permanent) All PowerPads and PEL
MN193 5A: 0.005 to 6AAC
100A: 0.1 to 120AAC
All PowerPads and PEL
MR193 10 to 1000AAC; 10 to 1300A PEAK AC+DC All PowerPads and PEL
SL261 100mV/A: 100mA to 10A peak
10mV/A: 1 to 100A peak
8333, 8336, 8435 and PEL
SR193 1 to 1200AAC (I > 1000A not continuously) All PowerPads and PEL

(1) 10 to 6500AAC for Model 8435

(2) 200mA to 10,000A measurement range for the PEL 100 Series.

(3) 12,000A is specified for the PEL 100 Series only.

Battery: 9V Alkaline NEDA 1604A, 6LR61

Battery Life:

• MR193 – 100H typical

• SL261 – 55H typical

• J93 – 70H typical

NOTE: Battery life is twice the typical value when using Lithium batteries.


What are the environmental and mechanical specifications for the AEMC INSTRUMENTS 193-24-BK and compatible probes?

Environmental Specifications:

Use: Indoor use.

Operating Temperature: 14° to 131°F (-10° to 55°C); 10% to 85% RH

Storage Temperature: -40° to 158°F (-40° to 70°C); 10% to 90% RH

Degree of pollution: 2

Altitude: < 2000 m

Mechanical Specifications:

Model Lead Length (nominal) Clamping Diameter Dimensions Weight
AmpFlex® 193-24-BK 24″ (610mm) 10 ft (3m) 7.64″ (190mm) 6.6 x 6.2 x .98″ (170 x 158 x 25mm) 7.7 oz (270g)
AmpFlex® 193-36-BK 36″ (910mm) 10 ft (3m) 11.46″ (290mm) 11 x 10.4 x .98″ (280 x 265 x 25mm) 9.5 oz (220g)
AmpFlex® 196A-24-BK 24″ (610mm) 10 ft (3m) 7.64″ (190mm) 6.6 x 6.2 x .98″ (170 x 158 x 25mm) 7.7 oz (270g)
MiniFlex® MA193-10-BK 10″ (250mm) 10 ft (3m) 2.75″ (70mm) 4.0 x 2.5 x 1.1″ (103 x 64 x 28mm) 1.94 oz (55g)
MiniFlex® MA193-14-BK 14″ (350mm) 10 ft (3m) 3.94″ (100mm) 4.0 x 2.5 x 1.1″ (103 x 64 x 28mm) 2.11 oz (60g)
J93 10 ft (3m) 2.84″ (72mm) 13.23 x 5.00 x 1.65″ (336 x 127 x 42mm) 3.75 lbs (1.7kg)
MN93 10 ft (3m) 0.8″ (20mm) 5.47 x 2.00 x 1.18″ (135 x 51 x 30mm) 24 oz (690g)
MN193 10 ft (3m) 0.8″ (20mm) 5.47 x 2.00 x 1.18″ (135 x 51 x 30mm) 24 oz (690g)
MR193 10 ft (3m) One 1.6″ (42mm) or two 0.98″ (25mm) or two bus bars 1.96 x 0.19″ (50 x 5mm) 8.8 x 3.82 x 1.73″ (224 x 97 x 44mm) 19 oz (540g)
SL261 6.5 ft (1.9m) 0.46″ (11.8mm) 9.09 x 1.42 x 2.64″ (231 x 36 x 67mm) 11.6 oz (330g)
SR193 10 ft (3m) 2″ (52mm) 8.5 x 4.4 x 1.8″ (216 x 111 x 45mm) 24 oz (690g)

What are the safety ratings for the AEMC INSTRUMENTS 193-24-BK and compatible probes?

Protection Index: IP 40 for the probes and IP 30 jaws open, according to IEC 60 529.

IP 65 for the AmpFlex® according to IEC 60 529.

IK 04 according to IEC 50102.

Drop test: According to IEC 61010-1.

Electrical safety: According to IEC 61010-2-032.

Maximum applicable voltage:

AmpFlex®: 1000V CAT III; 600V CAT IV

MiniFlex®: 1000V CAT III; 600V CAT IV

J93: 600V CAT III; 300V CAT IV

MN93/MN193: 600V CAT III; 300V CAT IV

MR193: 600V CAT III; 300V CAT IV

SL261: 600V CAT III

SR193: 1000V CAT III; 600V CAT IV

Specifications are subject to change without notice.


How do I clean the AEMC INSTRUMENTS 193-24-BK compatible probes and sensors?

CAUTION: Risk of electric shock. Disconnect the instrument from any source of electricity.

• Use a soft cloth, dampened with soapy water. Rinse with a damp cloth and dry rapidly with a dry cloth.

• Do not use alcohol, solvents, or hydrocarbons.

• Do not splash water directly on the instrument.


How do I replace the battery in the Model MR193 probe?

1. Disconnect the MR193 completely and turn the rotary switch to OFF.

2. Use a screwdriver to unscrew the screws and remove the battery compartment cover on the backside of the unit.

3. Withdraw the battery from its compartment.

4. Disconnect the old battery without pulling on the wires and replace with a new one, observing the polarity.

5. Put the battery into its compartment.

6. Put the cover back in place and screw the screws back in.


How do I replace the battery in the Model SL261 probe?

1. Disconnect the SL261 completely and turn the rotary switch to OFF.

2. Unscrew the battery compartment screw and pull off the battery compartment cover.

3. Replace the battery with a new one, observing the polarity.

4. Put the cover back in place and screw the screw back in.


How do I replace the battery in the Model J93 probe?

1. Insert a tool, not more than 3mm in diameter, in the hole in the battery compartment cover.

2. Push to unlock the battery compartment cover, then slide it off.

3. Remove it completely by hand.

4. Remove the battery and the shim from the compartment.

5. Place the new battery in the compartment with the polarity as indicated on the label. Then replace the shim.

6. Put the battery compartment cover back in the slide and push it in until you hear a click.

Used batteries must not be treated as ordinary household waste. Recycle them appropriately.

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