• True RMS Auto Ranging DMM offers increased accuracy over average responding multimeters
• 1MHz Oscilloscope can be used to view power signals to determine quality as well as correct amplitude and frequency, assisting in finding and preventing problems
• Trend Mode enables surges and dropouts to be graphed
• Communication to a PC using optional RS-232 cable and software
• cULus 61010-1

Model 440 Applications

• View industrial signals such as motor control, UPS, switching power supplies, and PLC controls with 1MHz bandwidth
• Capture noise spikes, glitches, and intermittents with 20 megasamples per second sampling rate
• Full autoranging, True RMS, DMM capabilities
• Measure resistance and test for continuity
• Continually updated display provides a live presentation

Category Ratings:

• Category I: Usually electronic equipment or equipment where measures have been taken to limit transient over voltages.


• Category II: Single phase loads like appliance personal computers, television sets, and other household loads. Outlets located more than 30 feet froma CAT III source or more than 60 feet from a CAT IV source.


• Category III: Distribution level fixed installations like distribution panel devices, short branch and feeder circuits, three phase loads, and single phase commercial lighting.


• Category IV: Equipment and lines located on the power line side of a service panel or where a low voltage connection is made to utility power

SPECIFICATIONS

OSCILLOSCOPE FUNCTIONS

Horizontal

• Sample Rate: 20 Megasamples/second
• Record Length: 256 in all modes (pixel)
• Samples/Division: 20
• Update Rate: Real time
• Modes: Single shot
• Accuracy: ±0.01%
• Sweep Rate: 1µS to 1S in 1,2,5 sequence

Vertical

• Bandwidth: 1MHz
• Resolution: 8 bits
• Channels: Single
• Coupling: AC, DC
• Input Impedance: 1.11 M Ohm
• Accuracy: ±3%
• Max Input Volts: 1000 Vp-p

Triggering

• Type: Internal
• Coupling: AC, DC, Glitch Capture
• Slope: + or - edge
• Internal Trigger Sensitivity: 2/20 Division

Other

• Glitch Capture: Over 0.05 Horizontal division, 0.25 Vertical division spike. Minimum time 1µS
• Digital Trigger Delay Time: 0-512 Samples
• Logic Test Display: 3V & 5V CMOS, TTL

DIGITAL MULTIMETER FUNCTIONS

a. DCV

Range	Resolution	Accuracy	Impedance
400mV	0.1mV	±0.3% of reading, ±2 digits	More then 100MΩ
4V	0.001V	±0.3% of reading, ±2 digits	10MΩ
40V	0.01V	±0.3% of reading, ±2 digits	10MΩ
400V	0.1V	±0.3% of reading, ±2 digits	10MΩ
1000V	1V	±0.3% of reading, ±2 digits	10MΩ

b1. ACV (20Hz to 50Hz)

Range	Resolution	Accuracy	Impedance
300mV	0.1mV	±1.5% of reading, ±10 digits	1.11MΩ
3V	0.001V	±1.5% of reading, ±10 digits	1.11MΩ
30V	0.01V	±1.5% of reading, ±10 digits	1.11MΩ
300V	0.1V	±1.5% of reading, ±10 digits	1.11MΩ
750V	1V	±1.5% of reading, ±10 digits	1.11MΩ

b2. ACV (50Hz to 1kHz, 1kHz to 10kHz)

Range	Resolution	Accuracy	Impedance
300mV	0.1mV	±0.75% of reading, ±10 digits	1.11MΩ
3V	0.001V	±0.75% of reading, ±10 digits	1.11MΩ
30V	0.01V	±0.75% of reading, ±10 digits	1.11MΩ
300V	0.1V	±0.75% of reading, ±10 digits	1.11MΩ
750V	1V	(N/A for 1kHz to 10kHz)	1.11MΩ

b3. ACV (10kHz to 30kHz, 30kHz to 100kHz, 100kHz to 200kHz)

Range	Resolution	10kHz - 30kHz	30-100kHz	Impedance	Impedance
300mV	0.1mV	±2.5% of reading, ±30 digits	±4% of reading, ±200 digits	±10% of reading, ±300 digits	1.11MΩ
3V	0.001V	±2.5% of reading, ±30 digits	±4% of reading, ±200 digits	±10% of reading, ±300 digits	1.11MΩ
30V	0.01V	±2.5% of reading, ±30 digits	±4% of reading, ±200 digits	±10% of reading, ±300 digits	1.11MΩ
300V	0.1V	±2.5% of reading, ±30 digits	±4% of reading, ±200 digits	±10% of reading, ±300 digits	1.11MΩ
750V	1V	N/A	N/A	N/A

c. DCA

Range	Resolution	Accuracy	Overload Protection
400µA	0.1µA	±0.5% reading, ±5 digits	Fuse* (fast below) F600V, 0.5A, 31CM
4000µA	1µA	±0.5% reading, ±5 digits	Fuse* (fast below) F600V, 0.5A, 31CM
40mA	0.01mA	±0.5% reading, ±5 digits	Fuse* (fast below) F600V, 0.5A, 31CM
400mA	0.1mA	±0.5% reading, ±5 digits	Fuse* (fast below) F600V, 0.5A, 31CM
4A	0.001A	±0.75% reading, ±10 digits	F600V, 0.5A, 31CM
10A	0.01A	±0.75% reading, ±10 digits	F600V, 0.5A, 31CM

d. ACA

Range	Resolution	20-50Hz	50Hz-3kHz	3-10kHz	10-30kHz
300µA	0.1µA	±1% reading, ±10 digits	±0.75% reading, ±10 digits	±2% reading, ±20 digits	±2% reading, ±40 digits
3000µA	1µA	±1% reading, ±10 digits	±0.75% reading, ±10 digits	±2% reading, ±20 digits	±2% reading, ±40 digits
30mA	0.01mA	±1% reading, ±10 digits	±0.75% reading, ±10 digits	±2% reading, ±20 digits	±2% reading, ±40 digits
300mA	0.1mA	±1% reading, ±10 digits	±0.75% reading, ±10 digits	±2% reading, ±20 digits	N/A
3A	0.001A	±1% reading, ±10 digits	±0.75% reading, ±10 digits	N/A	N/A
10A	0.01A	±1% reading, ±10 digits	±0.75% reading, ±10 digits	N/A	N/A

e. OHM (Resistance, Ω)

Range	Resolution	Accuracy	Overload Protection
400Ω	0.1Ω	±0.3% reading, ±10 digits	600V DC or AC Peak
4kΩ	0.001kΩ	±0.3% reading, ±2 digits	600V DC or AC Peak
40kΩ	0.01kΩ	±0.3% reading, ±2 digits	600V DC or AC Peak
400kΩ	0.1kΩ	±0.3% reading, ±2 digits	600V DC or AC Peak
4MΩ	0.001MΩ	±1.0% reading, ±10 digits	600V DC or AC Peak
30MΩ	0.01MΩ	±1.5% reading, ±20 digits	600V DC or AC Peak

f. Continuity Buzzer

Test Voltage	Max Test Current	Overload Protection
3V	100 digits	600 V DC or Peak AC

g. Diode Test

Test Voltage	Max Test Current	Overload Protection
3V	Approx. 2.5mA	600 V DC or Peak AC

*Warning: Use only correct size, voltage and current rated fuses.
Test Leads: Use only correct type and overvoltage category rating

i. Capacitance

Range	Resolution	Accuracy	Overload Protection
400.0nF	100pF	±3% reading, ±5 digits	600V DC or AC Peak
4.0µF	0.001µF	±3% reading, ±5 digits	600V DC or AC Peak
40.0µF	0.01µF	±3% reading, ±5 digits	600V DC or AC Peak
400.0µF	0.1µF	±3% reading, ±5 digits	600V DC or AC Peak

j. Frequency

Range	Resolution	Accuracy	Overload Protection
100.00Hz	0.01Hz	±0.05% reading, ±1 digits	600V DC or AC Peak
1.0000kHz	0.1Hz	±0.05% reading, ±1 digits	600V DC or AC Peak
10.000kHz	1Hz	±0.05% reading, ±1 digits	600V DC or AC Peak
100.00kHz	10Hz	±0.05% reading, ±1 digits	600V DC or AC Peak
1.0000MHz	100Hz	±0.05% reading, ±1 digits	600V DC or AC Peak
2.0000MHz	100Hz	±0.05% reading, ±1 digits	600V DC or AC Peak

* * Sensitivity (square wave)
1Hz below N/A
2Hz to 1kHz 1V
1kHz to 2MHz 1.5V

GENERAL SPECIFICATIONS

Max. Volt. between any input and Ground	1000V
Basic DC Accuracy	0.3%
Frequency Counter Range	2 MHz
Meter AC Bandwidth	200 kHz
Waveform Display Bandwidth	1 MHz
Fuse Protection	mA: 0.5Amp/600VAC; A: 10Amp/600VAC
Display Type	Super-twist LCD, 160 x 240 pixels
Operating Temperature	0° to 50°C (32° to 122°F)
Storage Temperature	-20° to 60°C (-4 to 140°F)
Relative Humidity 0% to 80%	(0°-35°C / 32°-95°F) 0% to 70%: (35°-55°C / 95°-131°F)
Temp. Coefficient	0.1 x (Specified Accuracy) per °C for temperature <18°C to >28°C
Power Supply	Nicad Battery 7.2V, AA Cell x 8
Battery Life Time	5 Hours
Battery Charge Time	3 Hours
Safety Designed	Pollution degree 2, Overvoltage Cat. II 1000V, Cat III 600V per IEC 1010, UL3111 and C22.2 No. 1010-1
Size (H x L x W)	52 x 220 x 100mm
Weight	1 lb. 6 oz