The KEW SNAP 2002PA and 2002R are digital clamp meters designed for safe and accurate electrical measurements. These instruments adhere to IEC Publication 61010 safety requirements for electronic measuring apparatus, specifically Measurement Categories CAT. III 600V and CAT. II 1000V, with a pollution degree of 2. They are equipped with double or reinforced insulation for enhanced safety.
Function Description:
These clamp meters are primarily used for measuring AC current, AC voltage, DC voltage, and resistance. The KEW SNAP 2002R model offers true-RMS readings for AC current and voltage, which is particularly useful for distorted waveforms, ensuring greater accuracy compared to conventional average-sensing clamp meters.
Current Measurement:
The devices offer a wide measuring range for AC current, from 0 to 2000A.
- KEW SNAP 2002PA:
- 400A range: 0 to 400.0 A with 0.1 A resolution. Accuracy: ±1.0%rdg±3dgt (50/60Hz), ±2.0%rdg±3dgt (40~1 kHz). Continuous measurement.
- 2000A range: 0 to 1000 A with 1 A resolution. Accuracy: ±1.0%rdg±3dgt (50/60Hz). 1000 to 1500 A with 1 A resolution. Accuracy: ±3.0%rdg±3dgt (40~1 kHz). Maximum measurement time: 15 minutes. 1500 to 2000 A with 1 A resolution. Accuracy: ±3.0%rdg (50/60Hz). Maximum measurement time: 5 minutes.
- KEW SNAP 2002R (True RMS):
- 400A range: 0 to 400.0 A with 0.1 A resolution. Accuracy: ±1.5%rdg±3dgt (45~65Hz), ±2.5%rdg±3dgt (40~1kHz). Continuous measurement.
- 2000A range: 0 to 1000 A with 1 A resolution. Accuracy: ±2.0%rdg±5dgt (45~65Hz), ±3.0%rdg±5dgt (40~1kHz). Maximum measurement time: 15 minutes. 1500 to 2000 A with 1 A resolution. Accuracy: ±4.0%rdg (50/60Hz). Maximum measurement time: 5 minutes.
Both models feature a peak hold function that measures current variations as short as 10 msec. The peak current value displayed is the crest value divided by the square root of two, which equals the RMS value for sinusoidal currents.
Voltage Measurement:
The instruments provide auto-ranging for both AC and DC voltage measurements.
- AC Voltage (~V) Auto-ranging:
- 40V range: 0 to 40.00 V with 0.01 V resolution. Accuracy: ±1.0%rdg±2dgt (50/60Hz) for 2002PA, ±1.0%rdg±2dgt (45~65Hz) for 2002R.
- 400V range: 15.0 to 400.0 V with 0.1 V resolution. Accuracy: ±1.5%rdg±3dgt (40~1 kHz).
- 750V range: 150 to 750 V with 1 V resolution.
- Input impedance is approximately 1 MΩ.
- DC Voltage (V) Auto-ranging:
- 40V range: 0 to ±40.00 V with 0.01 V resolution.
- 400V range: ±15.0 to ±400.0 V with 0.1 V resolution.
- 1000V range: ±150 to ±1000 V with 1 V resolution.
- Accuracy: ±1.0%rdg±2dgt.
- Input impedance is approximately 1 MΩ.
Resistance Measurement:
Auto-ranging is also available for resistance measurements, along with a continuity check function.
- Resistance (Auto-ranging):
- 400Ω range: 0 to 400.0 Ω with 0.1 Ω resolution.
- 4kΩ range: 0.150 to 4.000 kΩ with 1 Ω resolution.
- 40kΩ range: 1.50 to 40.00 kΩ with 10 Ω resolution.
- 400kΩ range: 15.0 to 400.0 kΩ with 100 Ω resolution.
- Accuracy: ±1.5%rdg±2dgt.
- Continuity Check: Fixed to the 400 Ω range. A buzzer beeps when the reading is not more than 50 ± 35 Ω.
Output for Recorder:
Both models provide a DC voltage output proportional to the input current on the "~400A" or "~2000A" range, allowing for current variation recording with a chart recorder or other recording device.
- Output voltage: 1mV/A on the "~400A" range and 0.1mV/A on the "~2000A" range.
- Output impedance: approximately 10kΩ.
Important Technical Specifications:
- Operating System: Dual Integration.
- Display: Liquid crystal display with a maximum count of 4000.
- Conductor Size: Approximately 54.5mm diameter max.
- Frequency Range: 40Hz to 1kHz (for current measuring range 0-1500A).
- Overload Protection: 2400A AC for 10sec, 1200V AC/DC for 10sec, 600V AC for 10sec.
- Withstand Voltage: 5320V AC for 5 seconds between electrical circuit and housing cases or metal parts of jaws.
- Insulation Resistance: 10MΩ or greater at 1000V between electrical circuit and housing cases or metal parts of jaws.
- Dimensions: 247(L) × 105(W) × 49(D)mm.
- Weight: Approximately 470g (battery included).
- Power Source: Two R6P (DC1.5V) batteries or equivalent.
- Current Consumption: Approximately 5mA max. (Approximately 20μA in sleep mode).
- Electromagnetic Compatibility (EMC):
- EN61000-4-3 Radiated RF electromagnetic field immunity: RF field strength <= 1V/m, total accuracy: specified accuracy. RF field strength = 3V/m, total accuracy: specified accuracy + 2% of range (KEW SNAP 2002PA).
- EN61000-4-2 Electrostatic discharge immunity (ESD): Performance criteria B (KEW SNAP 2002R).
- Crest Factor (KEW SNAP 2002R): CF=3 or less. Accuracy +1% (45~65Hz), less than AC3000A/AC1200V Peak.
Usage Features:
- Tear-drop-shaped jaws: Designed for ease of use in crowded cable areas and tight spaces.
- Terminal cover: Prevents the use of incorrect terminals.
- Data Hold function: Allows freezing of the measured value on the display for easy reading in dimly lit or hard-to-read locations. The "H" symbol indicates data hold mode.
- Mode Switching Function: A single mode switch allows cycling through measurement modes (Normal, Peak, Continuity Check) on relevant ranges.
- Low Battery Warning: A "BATT" symbol is displayed on the digital display when the battery voltage is low.
- Overrange Indication: "OL" is displayed when the input exceeds the upper limit of a range.
- Operating Environmental Conditions: Indoor use, altitude up to 2000m, operating temperature 0~40℃, relative humidity up to 85% without condensation.
- Storage Temperature and Humidity: -20~60℃, relative humidity up to 85% without condensation.
Maintenance Features:
- Sleep Function: Automatically powers down the instrument in about 10 minutes after the last switch operation to conserve battery power. This function can be disabled for continuous use by pressing the data hold switch while turning the function selector switch from "OFF" to another position.
- Battery Replacement: Requires two R6P (DC1.5V) batteries. The battery compartment cover is located on the bottom of the instrument and secured by screws. Users are warned to set the function selector switch to "OFF" and remove test leads before replacing batteries. It is also advised not to mix new and old batteries and to ensure correct polarity during installation.
- Cleaning: The instrument should be cleaned with a cloth dipped in water or neutral detergent. Abrasives or solvents should not be used.
- Calibration and Repair: Users are advised not to install substitute parts or make any modifications to the instrument. For repair or re-calibration, the instrument should be returned to the distributor.
Optional Accessories:
- Multi-Tran MODEL 8008: Extends the current measurement capability up to 3000A or for large bus-bars/conductors. It requires clamping the KEW SNAP 2002PA/R onto its pickup coil and then clamping the MODEL 8008 onto the bus-bar/conductor under test, with the reading multiplied by 10.
- Test leads M-7107
- Recorder Output Plug M-8201
- Carrying case M-9094
- Multi-Tran M-8008
- Output Probe M-7014
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