VC77 Digital Multimeter 2 in 1 4-20MA Signal Output Multimeter Process Signal Source

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Features
1.Multimeter & Signal Source 2 in1
2. Loop detection function
A. Simultaneously supply 24V loop and measure current.
B. Built-in 250 HART loop resistor for easy access to HART communication devices without the need to carry load resistors separately.
3. Analog output function
A. 4~20mA current setting by bit, manual step output function.
B. SIMULATE function simulates the transmitter.
C. Can be displayed in mA and percentage.
D. The output accuracy is 0.2%, and the output is displayed as 5 bits.
4. Measurement function
A. AC voltage, DC voltage, ohmic, DC current, on and off, diode.
B. The measurement accuracy is 0.5%, and the current measurement is displayed as 5 bits, which is displayed as 4 bits.
C. Measurement rate:2.5 times / sec
D. Can be displayed in mA and percentage.
E. Data retention function.
5. Use panel calibration technology.
Specifications
Display Screen:display in four digits(5 in current measurement and output)
Refresh display:2.5 displays/second
Operation temperature and moisture range:0~40 ºC, relative moisture≤85%(no condensation)
Storage temperature and moisture range:-20 ºC~60 ºC,relative moisture≤90%( no condensation)
Accuracy required temperature and moisture range:23±5ºC,relative moisture≤75%( no condensation)
Temperature co-efficiency:0.1 * basic accuracy / ℃(temperature range
28℃)
Continuity/open test:Beeper sounds for resistance readings below threshold, or to indicate a momentary open circuit
Battery type:two AA 1.5V Alkaline (LR6) batteries(Not included)
DC current output(SIMULATE):about 50 hours;
DC current output (SOURCE)20mA(1000Ω load):about 2.5 hours.
Battery life:when using alkaline battery:measures any parameter:about 100 hours;
Low battery:displays battery symbol
Automatic power-off:The default value is 5 mins if no operation which is adjustable.
Preheating time:10min
Measuring detailed accuracy indicator
Measuring part:range:frequency:accuracy:remark
DC voltage:50V:10mV:0.5%+4:• Measuring impedance 10 MΩ (standard value)
• Common mode restrain:50Hz or 60Hz > 100Db
• String mode restrain:50Hz or 60Hz > 45dB
• Overload protection:600V (pea’k –pea’k value)
AC voltage:500V:100mV:0.5%+20 ( 45Hz~100Hz ):• frequency beeps:45Hz~400Hz
• Adaptive to range from 10% to 100%
• AC conversion:mean value
• Measuring impedence:10 MΩ(standard value)
• Common mode restrain:50Hz or 60Hz > 100Db
• Overload protection:600V(pea’k –pea’k value)
2%+20 ( 100Hz~400Hz )
Ohm:5kΩ:0.001kΩ:0.5%+4:• open-circuit voltage
• short-circuit current:about 0.1mA.
• leads resistance excluded in the accuracy;
• overload protection:600V
continuity:500Ω:0.1Ω:Short-circuit beep is about 20Ω:• open-circuit voltage
• short-circuit current:about 0.1mA.
• overload protection:600V(pea’k –pea’k value)
diode:2V:0.001V:1%+20
DC current:20mA:0.001mA:0.2%+4:• overload protection:100mA/250V fast-melt protection;
• loaded voltage:about 18mV/mA
Outputting detailed accuracy indicator
output function:range:output designated range:frequency:accuracy:remark
DCI
DC current:20mA:0.000~22.000mA:0.001mA:0.2%+4:• Max. load:1kΩ at 20mA
SIMULATE
Simulate transmitter:-20mA:0.000~-22.000mA:0.001mA:• external power supply:5~28V
• Max. load:1kΩ at 20mA
LOOP
Loop-circuit power:24V:::±10%:• Max. output current 25mA
Package inlcudes
1 x Multimeter
Detail pictures: