SISCO SISCO-ETCR7350B (01) PDF Document

The SISCO SISCO-ETCR7350B is a device designed and manufactured for field testing of AC large current. It can also function as a multimeter to measure AC voltage, DC voltage, resistance, and continuity testing. It is widely used in electric power, communications, meteorology, railways, construction, and scientific research environments. It is especially suitable for dense flat cable locations, transformer grounding core testing, and environments with serious signal distortion.

The technical specifications for the SISCO SISCO-ETCR7350B are as follows:

The SISCO SISCO-ETCR7350B utilizes Rogowski Coil technology. This is a loop coil uniformly wound on non-ferromagnetic materials. It features no hysteresis effect, almost zero phase error, no magnetic saturation, high linearity, and strong anti-interference ability. The sensor restores input current by integrating the output voltage signal, which is the differential of the current with respect to time.

Step 1. Read the instruction manual in detail and comply with all safety regulations.

Step 2. Pay special attention to safety as the communication interface and internal circuits are non-isolated.

Step 3. Never connect the computer while testing voltage, as it may burn the meter or cause electric shock.

Step 4. Pull out the voltage test line before connecting the communication data line to a computer.

Step 5. Use, disassembly, and maintenance should only be performed by authorized personnel.

This symbol indicates that the operator must strictly follow safety rules. Failure to do so creates a danger of electric shock, which could cause personal injury or an injury accident.

To turn the meter on, press the POWER key. The LCD will display and the device will enter measurement mode. To turn the meter off, press the POWER key again. The SISCO SISCO-ETCR7350B also features an automatic shutdown function that triggers after 10 minutes of inactivity to reduce battery consumption.

Press the MODE key to cycle through the three different measurement modes: Current/AC voltage, Current/DC voltage, and Current/resistor.

Step 1. Start up the meter and enter measurement mode.

Step 2. Rotate the lock catch toward the OPEN direction to unscrew the flexible coil lock catch.

Step 3. Clamp the measured wire with the flexible coil clamp.

Step 4. Rotate the lock catch toward the CLOSE direction to lock the coil.

Step 5. Observe the reading value on the LCD. Ensure the tested wire is in the central position of the coil for the most accurate reading.

The measured conductor should be in the center of the coil. Positioning the wire near the opening and closing point can increase test error by twice or more. Positioning the wire near the coil edges can increase error by about 1%.

You can improve the test resolution by wrapping the flexible coil around the measured wire multiple times before closing it. The actual current will be equal to the display value divided by the number of windings. For example, if you wrap the wire 5 times and the meter shows 50A, the actual current is 10A.

Step 1. Start up the meter.

Step 2. Press the MODE key to switch to either AC V (AC voltage mode) or DC V (DC voltage mode).

Step 3. Connect the test lines to the meter and the voltage source. The display will show the voltage value.

Step 1. Start up the meter.

Step 2. Press the MODE key to switch to the RES resistance gear.

Step 3. Connect the test line to the meter and the object being measured. The LCD will display the resistance value.

Step 1. Start up the meter and press the MODE key to switch to the RES resistance gear.

Step 2. Press the SET key to enable the continuity testing function. A symbol will appear on the screen to indicate it is active.

Step 3. Connect the test lines. If the measured resistance is smaller than 20 ohms, the buzzer will ring to alert you.

After starting up the meter, press the backlight key (indicated by a sun/star icon) to turn the backlight on or off. The backlight is open by default when the device starts up and is designed for use in dark sites.

Press the HOLD key to freeze the current display data; a HOLD symbol will appear on the LCD. The meter will automatically number and save this data. The SISCO SISCO-ETCR7350B can store up to 600 groups of data. Press the HOLD key again to cancel the hold and return to active measurement.

Step 1. While in measurement mode, press the MEM key to enter data query mode. The READ symbol will be displayed.

Step 2. Data starts at “READ:001”. Press the HOLD key to increase the query index.

Step 3. Press the MEM key to decrease the query index.

Step 4. Press the MODE key to return to standard measurement mode.

Step 1. In data query mode, press the SET key to enter the delete option.

Step 2. Press the MODE key to toggle the cursor between YES and NO.

Step 3. Select YES to delete data or NO to return to query mode.

Step 4. Press the SET key to confirm your selection.

Step 1. Install the USB driver and upload software on your computer.

Step 2. Connect the meter to the computer using the standard communication cable.

Step 3. Run the software, select history query, and then read, save, report, or print the data. Data can be saved in Txt or Excel formats.

Step 4. Ensure the meter is not under voltage testing while connected to the computer to avoid damage.

The “OL” symbol on the display indicates an overflow function. This happens when the measurement exceeds the upper limit range of the meter.

When the battery voltage drops to 4.8V, the meter will display a low battery symbol to remind you to replace the batteries. If the LCD display is dark after starting up, it is likely that the battery voltage is too low and the batteries should be replaced immediately.

Step 1. Press the POWER key to shut down the meter and ensure it is in the off state.

Step 2. Open the battery cover on the back of the meter.

Step 3. Remove the old batteries and replace them with four new 6V DC LR03 Alkaline dry cells, paying attention to the correct polarity.

Step 4. Replace and secure the battery cover plate before attempting to use the meter.

The SISCO SISCO-ETCR7350B should be used in temperatures between -10 degrees Celsius and 40 degrees Celsius with humidity below 80%RH. For storage, the temperature should be between -10 degrees Celsius and 60 degrees Celsius with humidity below 70%RH. Avoid storing the meter in high temperature, high humidity, dewy places, or under direct sunlight for long periods.

The SISCO SISCO-ETCR7350B complies with suitable safety standards including IEC1010-1, IEC1010-2-032, Pollution Degree 2, CAT VI (1000V), and IEC61326 (EMC standard).

The SISCO SISCO-ETCR7350B comes with the following accessories:

1. Meter (1 PCS)

2. Tool bag (1 PCS)

3. Probe test lines (2 PCS: red and black, 1 each)

4. Communication cable (1 PCS)

5. Package, Manual, Warranty card, and Certification (1 SET)

The insulation resistance is 100M ohms or more at 1000V.

After voltage is measured, the test line should be removed from the tested wire first, and then pulled out from the meter to avoid electric shock. Always clean the clamp head and maintain the meter after use.

The working current of the SISCO SISCO-ETCR7350B is 80mA when the backlight is on and 40mA when the backlight is turned off.

The double square symbol indicates that the SISCO SISCO-ETCR7350B has double insulation.

The SISCO SISCO-ETCR7350B features a 2.8 inch TFT colorful screen with a display area of 58mm by 44mm.

No, the SISCO SISCO-ETCR7350B cannot be used to measure voltage lines that exceed 1000V. Doing so creates a high danger of electric shock and personal injury.

The communication cable included with the SISCO SISCO-ETCR7350B is 1.8 meters long.

The SISCO SISCO-ETCR7350B automatically detects and supports frequencies of 50Hz and 60Hz.

The dimensions (Length x Width x Height) for the SISCO SISCO-ETCR7350B are 300mm by 470mm by 35mm.

Yes, due to its small size, light weight, and soft, flexible coil, the SISCO SISCO-ETCR7350B is suitable for narrow environments and places where flat cables are densely packed.

The SET key is used to enter the data delete option from the query mode and then used again to confirm the final choice (YES or NO) for deleting the data.

The output signal of the flexible CT is the differential of the current with respect to time. By integrating this output voltage signal, the input current is accurately restored for measurement.

If the SISCO SISCO-ETCR7350B is not intended for use over a long period, please take out the batteries to prevent damage.

The meter must not be used for testing if the battery cover plate is not properly covered. Doing so is extremely dangerous.

Yes, the SISCO SISCO-ETCR7350B can be used as a multimeter to measure DC voltage by selecting the appropriate mode via the MODE key.

The gear shifting on the SISCO SISCO-ETCR7350B is automatic.

The structure consists of the flexible coil CT, a lock catch for opening and closing the coil, an LCD screen, function keys, a voltage and current test interface, a resistor test interface, a communication interface, and pen probe test lines.

When the HOLD key is pressed, the LCD screen will display a HOLD symbol to indicate the present display data is being frozen.

When measuring voltage, pay close attention to connecting the measurement lines correctly to avoid short-circuiting the tested circuit.

The MEM key is used to enter the data reading and query mode, allowing you to browse through stored data records.

The SET key is used to switch display channels, navigate inquiry data pages, and manage data deletion.

While in data query mode, press the MODE key to exit and return back to the active measurement mode.

No, because the Rogowski Coil technology uses non-ferromagnetic materials, the SISCO SISCO-ETCR7350B has no magnetic saturation.

The display area on the SISCO SISCO-ETCR7350B screen measures 58mm by 44mm.

The SISCO SISCO-ETCR7350B can measure AC current from 0.0A up to 6000A.

The SISCO SISCO-ETCR7350B is rated for CAT VI (1000V) safety standards.

Yes, according to the product model specifications, the SISCO SISCO-ETCR7350B is capable of measuring power, power factor, energy, frequency, and phase.

Placement of the tested wire near the opening and closing joint (Area C) of the coil will significantly increase the measurement error, potentially by twice or more.