Ideal ND2351 User Manual

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#61-494 #61-495

49 0 Series

Industrial Grade Multimeter

1. LCD Display

2. Function Buttons

3. Data Log Features

4. Rotary Function Switch

5. Input Connectors

WARNING!

1. DO NOT UNDER ANY CIRCUMSTANCES EXCEED THESE RATINGS:

- Voltage is not to exceed 1000 Volts.

- Resistance, Capacitance, Logic and Continuity functions are not to be performed on circuits capable of delivering greater than 600 Volts.

- Current measurements are not to be performed on circuits capable of delivering greater than 500 Volts

True RMS Data Logging

M/M/A

True RMS Data Logging

M/M/A

Auto Hold Button

• The auto hold button toggles the auto hold function on or off.

• Place the meter in manual range mode to activate this feature.

• Auto hold is activated when the first stable reading is achieved.

• When activated, the meter beeps when the reading is updated, and it is displayed in the sub-display with

annunciator.

• This function is not available on the 2GΩ range.

Blue Button

• The blue button toggles between the black and blue functions on the dial.

M/M/A Button

• The M/M/A button toggles between the stored minimum, maximum and average values captured during peak hold.

• The MIN/MAX/AVG value is displayed in the sub-display with the appropriate annunciator.

• To escape this function, press the M/M/A button for 2 seconds.

• Pressing the M/M/A button for > 2 seconds prior to entering M/M/A mode enables the store function.

Store Function

• Press the M/M/A button for 72 seconds to enter the store function.

• Pressing the M/M/A key in store mode stores the displayed measurement into the memory.

• Up to 1000 data points can be stored into memory for future analysis.

• When memory is full, the meter will beep twice after each key press.

• Pressing the range button for > 2 seconds exits store mode and returns to normal measurements.

REL Button

• This function displays the differential between the measurement and a stored value.

• The displayed measurement is stored in memory when this function is activated.

• This value is displayed in the sub-display with the annunciator.

• All new measurements will be subtracted from the stored value, and the difference will be displayed in the main display.

• Pressing the REL for > 2 seconds enables the recall function.

Recall Function

• In recall mode, use arrow keys, ▲ ▼, above the light and bar buttons to scroll through the stored readings.

• Press and hold the arrow keys to scroll faster (10 data points/second)

• Press the REL button for > 2 seconds to exits recall function and returns to normal measurements.

2. To avoid electrical shock hazards and/or damage to the meter:

- Do not exceed the voltage ratings for the meter. Use caution when measuring voltage.

- Do not use during electrical storms. AC power sources with inductive loads or electrical storms may result in high voltage. High energy transients can damage meter and present a dangerous shock hazard.

- Turn off power to the circuit or device being measured before taking resistance and capacitance measurements. Fully discharge all capacitors before measuring.

3. Ensure meter is in proper working order before using. Visually inspect meter for damage. Performing a continuity check can verify proper operation. If the meter reading goes from overload to zero, this typically means the meter is in proper working order.

4. Visually inspect leads for damage before using. Replace if insulation is damaged or leads appear suspect.

5. Never ground yourself when taking electrical measurements. Do not touch exposed metal pipes, outlets, fixtures etc. Keep your body isolated from ground by using dry clothing, rubber shoes, mats, or any other approved insulating material. Keep your fingers behind the finger guards on the probes. Work with others.

6. Before beginning all unknown measurements, set meter to highest possible range.

7. Before breaking a circuit for testing, turn off the power to the circuit. When disconnecting from a circuit, disconnect the hot lead first, then the common lead.

8. Disconnect the meter from the circuit before turning off any indicator, including motors, transformers and solenoids.

Function Buttons

The meter beeps once for every valid key-press, and beeps twice for every invalid key-press.

Backlight Button

• The light button is used to turn the backlight on or off.

• This function is disabled in DATA LOG mode.

BAR Button

• The bar button toggles the analog bar graph between left justified and zero centered.

• Available for DC voltage and current measurements only.

• This function is disabled in DATA LOG mode.

Peak Hold Button

• The peak hold button toggles the peak hold function on or off.

• The beeper sounds when a new minimum or maximum value is detected.

Data Log Functions (continued)

Data log-in

A. Press the Peak Hold button for > 2 seconds while in data logging mode enables the data log-in func-

tion. B. The meter begins storing data points into memory according to the selected log rate. C. Pressing the Peak hold button while in the mode interrupts data log-in for log-rate resetting. “PAUS”

is displayed on the secondary menu while the data flow is interrupted. D. While data is being stored into memory, “-“ is shown on the secondary display. E. When 40K data points have been stored, the data log-in stops, the bar is full, the “-“ begins blinking,

and FULL is displayed on the secondary display.

Log Rate Function

Press the auto hold button while in data logging mode to select the log rate. Select from 0.5”, 1”, 10”, 30”, 60”, 120”, 180”, 240”, 300”, 360”, 480”, and 600”. Press the auto hold button to escape and return to data logging mode.

Overload Protection

Function Overload Protection

VAC & VDC 1000V AAC & ADC 1A/500V

10A/500V Ohms (Ω) 600VAC/600VDC Diode 600VAC/600VDC Continuity 600VAC/600VDC

Unit of Measure Multipliers

For your reference, the following symbols are often used to make measurement easier: Symbol

Verbal Multiplier M mega x 1,000,000 K kilo x 1,000 m milli ÷ 1,000 µ micro ÷1,000,000

Additional Features Auto fuse detection: The meter checks the integrity of the internal fuses for the mA and A measurements. Probe input guard: The meter beeps continuously and displays “ProbE” if a probe is inserted in a current

input connector for other measurement functions.

Buzzer: A single beep indicates correct operation; two beeps indicate a warning or error condition. Peak Hold: ±(0.7% +20) additional error for > 20% of full scale and pulse width greater than 0.5mS;

±(10% +20) additional error for > 50% of full scale on 2V range.

Range Button

• Pressing the range button for 2 seconds toggles the meter between auto and manual ranging mode.

• When in manual range mode, pressing the button changes the measurement range.

• Pressing the range button while in AC voltage measurements for > 2 seconds enables the dB/dBm function.

• While in dB/dBm mode, pressing the range button toggles between dB and dBm.

dB/dBm Function

• The reading of dB or dBm appears on the secondary display.

• The reference resistance reading for dBm is 600Ω_and the reference voltage for dB is 1V.

• Pressing the range button for > 2 seconds exits dB/dBm mode and returns to AC voltage measurements.

Data Log Features

The range button and the M/M/A are the only buttons enabled in data logging mode. All other buttons perform the data logging functions labeled in red directly above the button. The auto power off function is also disabled.

Press the blue button for > 2 seconds to enter data logging mode. Changing the rotary function switch escapes data logging mode without storing data to memory. Pressing the blue button while in data logging mode returns to normal measurements.

Data quantities (61-495): 40K readings form as sequence number on sub-display up to 9999 and each 1 ⁄4 scale of bar indicates 10K. (61-494) 6K readings form as sequence number on sub-display up to 6000.

Max pause time: 4095 seconds; exceeding the maximum pause times stores data as 4095 seconds. Max pause and log rate: 3.6k

▲ ▼ Functions

While in data logging mode, the light button and bar button scroll up and down through the data logging menu selections.

Data Log Functions

Data log-out

A. Press the Peak Hold button while in data logging mode enables the data log-out function. B. The first data displayed is the last data point logged in. C. Pressing the ▲ ▼ buttons scrolls up and down through the data. D. Pressing the ▲ ▼ buttons for > 2 seconds scrolls up and down through the data at a rate of 10 data

points/seconds, and stops at the reading when the button is released.

E. Pressing the M/M/A button while in this mode toggles between the maximum and minimum values

logged into memory. Pressing for > 2 seconds escapes.

F. Pressing the range button while in this mode toggles the turning points logged-in with “MAX” or

“MIN” symbol depending on the comparison from the current reading and the next reading. Press the range key again to escape.

AC Frequency Resolution Accuracy Accuracy Voltage Range (61-494) (61-495)

20mV 40 ~ 100Hz 1µV ±(0.7% +80) ±(0.7% +80)

100 ~ 1kHz ±(1.0% +80) ±(1.0% +80)

200mV 40 ~ 100Hz 10µV ±(0.7% +80) ±(0.7% +80)

100 ~ 1kHz ±(1.0% +80) ±(1.0% +80)

2V 40 ~ 100Hz 100µV ±(0.7% +50) ±(0.7% +50)

100 ~ 1kHz ±(1.0% +50) ±(1.0% +50) 1k ~ 10kHz ±(2.0% +60) ±(2.0% +60) 10k ~ 20kHz ±(3.0% +70) ±(3.0% +70) 20k ~ 50kHz ±(5.0% +80) ±(5.0% +80) 50k ~ 100kHz ±(10.0% +100) ±(10.0% +100)

20V 40 ~ 100Hz 1mV ±(0.7% +50) ±(0.7% +50)

100 ~ 1kHz ±(1.0% +50) ±(1.0% +50) 1k ~ 10kHz ±(2.0% +60) ±(2.0% +60) 10k ~ 20kHz ±(3.0% +70) ±(3.0% +70) 20k ~ 50kHz ±(5.0% +80) ±(5.0% +80) 50k ~ 100kHz ±(10.0% +100) ±(10.0% +100)

200V 40 ~ 100Hz 10mV ±(0.7% +50) ±(0.7% +50)

100 ~ 1kHz ±(1.0% +50) ±(1.0% +50) 1k ~ 10kHz ±(2.0% +60) ±(2.0% +60) 10k ~ 20kHz ±(3.0% +70) ±(3.0% +70) 20k ~ 50kHz ±(5.0% +80) ±(5.0% +80)

750V 40 ~ 100Hz 10mV ±(0.7% +50) ±(0.7% +50)

100 ~ 1kHz ±(1.0% +50) ±(1.0% +50)

Auto power off: The meter turns itself off within 30 minutes if no controls or settings are changed. Restore power by switching dial.

Power-up Options: Press button while turning meter on from OFF position. Light button: Disable backlight auto off Range button: Turn off buzzer Blue button: Disable Auto Power Off Auto H: Set temperature measurement default as °F M/M/A: Clear memor y area for storage

Voltage Measurements (DC, AC, AC+DC)

DC Voltage Resolution Accuracy Accuracy

(61-494) (61-495)

20mV 1µV ±(0.06% +60) ±(0.06% +60) 200mV 10µV ±(0.06% +20) ±(0.06% +20) 2V 100µV ±(0.06% +10) ±(0.06% +10) 20V 1mV 200V 10mV 1000V 100mV

dBm (typical): -15dBm ~ 55dBm (0dBm = 1mW

into 600Ω) dBm (typical): -80dBV ~ 50dBV = 1VRMS) Input Impedance: 10MΩ, <100pF Overload Protection: 1000VDC, 750VRMS AC Conversion Type: AC Coupled, True RMS responding AC+DC Volts: Same as ACVRMS +1.00% + 8 digits Crest Factor: +1.5% addition error for C.F. from 1.4 ~ 3

+3.0% addition error for C.F. from 3 ~ 4

To Measure Voltage:

1. Plug the Black test lead into the COM port and the Red test lead into the VΩHz port.

2. Set the rotary switch to either the V or mV position.

3. Push the blue button to choose between DC, AC, or AC+DC measurements.

4. Connect the meter in parallel with the load or circuit.

5. Measure the voltage

6. The AC and AC+DC measurements provide a True RMS measurement.

7. For AC Measurements, the frequency of the measured signal > 20% of full scale is displayed on the secondary display.

Current Measurements (DC, AC, AC+DC)

DC Current Resolution Accuracy Accuracy Range (61-494) (61-495)

20mA 1µA ±(0.3% +40) ±(0.2% +40) 200mA 10µA 2A 100µA ±(0.3% +40) ±(0.2% +40) 10A 1mA

AC Current Frequency Resolution Accuracy Accuracy Range Range (61-494) (61-495)

20mA 40Hz ~ 500Hz 1µA

±(0.8% +50) ±(0.8% +50)

500Hz ~ 1kHz ±(1.2% +80) ±(1.2% +80)

200mA 40Hz ~ 500Hz 10µA

±(0.8% +50) ±(0.8% +50)

500Hz ~ 1kHz

±(1.2% +80) ±(1.2% +80)

1kHz ~ 3kHz

±(2.0% +80) ±(2.0% +80)

2A 40Hz ~ 500Hz 100µA

±(0.8% +50) ±(0.8% +50)

500Hz ~ 1kHz

±(1.2% +80) ±(1.2% +80)

10A 40Hz ~ 500Hz 1mA

±(0.8% +50) ±(0.8% +50)

500Hz ~ 1kHz

±(1.2% +80) ±(1.2% +80)

1kHz ~ 3kHz

±(2.0% +80) ±(2.0% +80)

Voltage Burden: 800mV max. for mA input; 1V max. for A input. Input Protection: Equipped with high energy fuse.

1A, 600V, IR 10kV fuse for mA input

15A, 600V, IR 100kV fuse for A input. AC Conversion Type: AC Coupled, True RMS responding AC+DC Volts: Same as ACVRMS +1.00% + 8 digits Crest Factor: +1.5% addition error for C.F. from 1.4 ~ 3

+3.0% addition error for C.F. from 3 ~ 4

To Measure Current:

1. Plug the Black test lead into the COM port and the Red test lead into the mA or A port.

2. Set the rotary switch to either the mA or A position.

3. Push the blue button to choose between DC, AC, or AC+DC measurements.

4. Connect the meter in series with the load or circuit.

5. Measure the current.

6. The AC and AC+DC measurements provide a True RMS measurement.

7. For AC Measurements, the frequency and period of the measured signal are displayed on the secondary

displays.

Warning

Limit large current measurements (10~20A to 30 seconds, and allow two minutes of cooling between readings. Do not connect to circuits with >600V.

Resistance and Low Voltage Resistance Measurements (Ohms)

Resistance Resolution Accuracy Accuracy Range (61-494) (61-495)

200Ω 10mΩ ±(0.3% +30) ±(0.3% +30) 2kΩ 100mΩ 20kΩ 1Ω 200kΩ 10Ω 2MΩΩ 100Ω ±(0.3% +50) ±(0.3% +50) 20MΩ 1kΩ ±(5.0% +50) ±(5.0% +50) 200MΩ 10kΩ ±(5.0% +20 ±(5.0% +20) 2GΩ 100kΩ ±(5.0% +8) ±(5.0% +8)

Low Voltage Resolution Accuracy Accuracy Resistance (61-494) (61-495) Range

2kΩ 100mΩ ±(0.6% +20) ±(0.6% +30) 20kΩ 1Ω 200kΩ 10Ω 2MΩ 100Ω ±(0.6% +50) ±(0.6% +50) 20MΩ 1kΩ ±(7.0% +50) ±(7.0% +50) 200MΩ 10kΩ ±(7.0% +20) ±(7.0% +20)

Open circuit voltage: 3.3V Open circuit low voltage: 0.6V Input protection: 600V rms

To Measure Resistance:

1. Turn the power off to the circuit or device that is to be measured and discharge all capacitors before attempting a measurement.

2. Plug the Black test lead into the COM port and the Red test lead into the VΩHz port.

3. Set the rotary switch to the Ω LV Ω position.

4. Press the blue button to choose between Ω and LVΩ.

LV setting reduces the maximum test voltage level to about 0.5V to avoid turning on semiconductor devices.

Frequency and Duty Factor Measurements

Freqency Resolution Accuracy Accuracy Range (61-494) (61-495)

20Hz 0.001Hz ±(0.01% +50) ±(0.01% +50) 200Hz 0.01Hz ±(0.01% +10) ±(0.01% +10) 2kHz 0.1Hz 20kHz 1Hz 200kHz 10Hz 1MHz 100Hz

Duty Factor Resolution Accuracy Accuracy

(61-494) (61-495)

20% ~ 80% 0.1% +6 digits +6 digits

Sensitivity: 0.5Vp-p for 15Hz ~ 1MHz

1Vp-p for 1 MHz ~ 4MHz Min. frequency: 5Hz Input protection: 600V rms

To Measure Frequency:

1. Plug the black test lead into the COM port and the red test lead into the VΩHz port.

2. Set the rotary switch to the Hz %DF position.

3. For duty factor, push the blue button until % is shown on the main display, and Hz is shown in the upper

right secondary display.

4. Connect the meter in parallel with the load or circuit.

5. Measure frequency or duty factor. Duty factor is the percentage of the signal that is high

Capacitance Measurements

Range Resolution Accuracy Accuracy

(61-494) (61-495)

4nF 1pF ±(1.9% +10) ±(1.5% +10) 40nF 10pF 400nF 100pF ±(1.4% +5) ±(0.9% +5) 4µF 1nF 40µF 10nF ±(1.7% +5) ±(1.2% +5) 400µF 100nF 4mF 1µF ±(2.0% +5) ±(1.5% +5) 10mF 10µF

To Measure Capacitance:

1. Turn the power off to the circuit or device that is to be measured and discharge all capacitors before attempting a measurement.

2. Plug the Black test lead into the COM port and the Red test lead into the VΩHz port.

3. Set the rotary switch to the __ position.

4. Measure capacitance.

Temperature Measurements

Temperature Resolution Accuracy Accuracy Range (61-494) (61-495)

-200°C ~ -100°C 0.1°C ±(0.1% +6°C) ±(0.1% +6oC)

-100°C ~ 1200°C 1°C ±(0.1% +3°C) ±(0.1% +3oC)

To Measure Temperature

1. Plug the temperature probe and adapter into the COM the VΩHz port.

2. Set the rotary switch to the °C °F position.

3. For correct reading, ensure that the device being tested contains no voltage.

4. Press the blue button to chose between a °C or °F display. Multiply the accuracy by 2 for °F

Input protection: 600V rms Note: The readings <360°C on 1°C resolution range when settled as manual range, display reads “Er” to change to lower range for best measurements.

Diode Testing

Diode Check:

To ensure a proper functioning diode, the meter will develop a voltage across the component from a test current. The diode test function allows measurements of forward voltage drops across diode and transistor junctions.

1. Turn off power to the device or circuit that is being tested and discharge all capacitors.

2. Plug the Black test lead into the COM port and the Red test lead into the VΩHz port.

3. Set the rotary switch to the position.

4. Press the blue button until is shown on the display

5. Connect the test leads to the diode. Forward bias: Good = 0.4 to 0.9V

Bad = 0 or ≥ 2.0V

Reverse bias: Good = OL

Bad = <2.0V Test current: 1.1mA (typical) Open circuit voltage: 3.3VDC (max) Input Protection: 600V rms

General Specifications

V connector: 1100 Vp AC+DC

850 Vp m m AC+DC

LVΩΩ• )( Hz% DF °C°F Temperature coefficient: 0.1 X (Spec. Accuracy) per °C, <18°C or >28°C Battery Life: 100 hours typical (alkaline)

Physical Characteristics

Dimensions: 200mm x 90mm x 42mm

212mm x 100mm x 55mm (w/holster) Weight (w/battery): 0.4Kg Weight (w/holster): 0.6Kg

Enviornmental Characteristics

Temperature Operating: 0 to +50°C Temperature Non-Operating: -20 to +60°C Humidity (Operating): <80% R.H. Altitude (Operating): 2,222m (7290 ft.) Altitude (Non-Operating): 12,300m (40354 ft.) Vibration & Shock (Operating): MIL-T-28800E Type II Class 5

2.66g RMS, 5 to 500 Hz, 3 axes, (10 min. each)

Dust/Water Protection IP Rating: IP 64

Certifications & Compliances

Safety: Designed to IEC 1010-1, UL3111 and CSA Specifications Input Rating: 1000VDC Category II

600VDC Category III 750VAC Category II 600VAC Category III

Overvoltage Category: Cat III: Distribution level mains, fixed installations

Cat II: Local level mains, appliances, portable equipment Cat I: Signal level, special equipment or parts of equipment, telecommunication, electronics

Pollution Degree 2: Do not operate in environments where conductive pollutants may be

present.

Continuity Check

To Verify Continuity:

A continuity test ensures that all circuit connections are intact.

1. Plug the Black test lead into the COM port and the Red test lead into the VΩHz port.

2. Set the rotary switch to the position.

3. Press the blue button until is shown in the display.

4. Connect the test leads to the circuit to be measured. The buzzer will sound if the resistance of the circuit measured is lower than 50Ω.

Continuity threshold: Approx. 50Ω Continuity Indicator: 2kHz tone buzzer Input protection: 600V rms

General Specifications

Stated accuracies are at 23°C +5°C at less than 80% RH and without battery indicator displayed. LCD display digits: 4-1/2 or 3-3/4 Bargraph segements: 42 segment graph Display count 20,000 or 4,000 Numeric update rate: 2 times/sec (20,000 count) Bargraph: 20 times/sec Polarity display: Automatic Overrange display: OL is displayed Low voltage indicator: is indicator Automatic power-off time: Automatic backlit off = 15 minutes Power source One 9V dr y cell batter y Maximum input voltage: 1000V (750VAC) Cat II between V and COM Maximum floatin voltage: 1000V (750VAC) Cat IIbetween any terminal and earth ground Maximum input current: 200mA between mA and COM 10A continuous between A and COM

(20A for 30 seconds) Maximum open circuit 600V between A and COM and Voltage (current inputs): between mA and COM Overload protection mA 1A (600V)fast blow fuse connector: A connector: 15A (600V) fast blow fuse

CUS

1817

Maintenance Battery Installation or Replacement:

1. The #61-492 is powered by one 9 volt battery.

2. Remove the test leads from the front terminals and turn the meter off.

3. Remove the screw from the battery cover and lift to remove.

4. Replace batteries.

5. Make sure the battery box leads do not become pinched between the case and batter y cover before

replacing the battery cover and screw.

Fuse Replacement

1. Remove the test leads from the front terminals and turn the meter off.

2. Remove the screw from the battery cover and lift to remove.

3. Remove the battery.

4. Remove the three screws connecting the top and bottom cases of the meter.

5. Separate the top case and PCB of the meter.

6. Replace the fuse (Fuse 1 or Fuse 2)

7. Re-assemble the top case and PCB of the meter

8. Assemble the top case, PCB and bottom case of the meter.

9. Re-install the battery and batter y cover.

Warning

To avoid electrical shock, remove test lead before opening the cover. Repairs or servicing not covered in this manual should only be performed by qualified personnel.

IDEAL INDUSTRIES, INC.

Sycamore, IL 60178, U.S.A. 800-304-3578 Customer Assistance www.testersandmeters.com

ND 2351-1 Made in Taiwan

Lifetime Limited Warranty

This meter is warranted to the original purchaser against defects in material or workmanship for the lifetime of the meter. During this warranty period, IDEAL INDUSTRIES, INC. will, at its option, replace or repair the defective unit, subject to verification of the defect or malfunction.

This warranty does not apply to defects resulting from abuse, neglect, accident, unauthorized repair, alteration, or unreasonable use of the instrument.

Any implied warranties arising out of the sale of an IDEAL product, including but not limited to implied warranties of merchantability and fitness for a particular purpose, are limited to the above. The manufacturer shall not be liable for loss of use of the instrument or other incidental or consequential damages, expenses, or economic loss, or for any claim or claims for such damage, expenses or economic loss.

State laws vary, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

Ideal ND2351 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual