Multimeter
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Product Name : Multimeter
Product Origin : Hong Kong S.A.R., China
Product Category : Tektronix
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Contact Details : 運揚有限公司 WANCO LIMITED
Product Code : 7708
Product Details

Multimeter



 

萬用錶

Model : 7708


 

FEATURES

• 40 differential channels for general-purpose measurements.


• 2- or 4-wire measurements.


• Oversize screw terminal connection blocks are standard for easier connection.


• 300V, 1A capacity for voltage channels; 60W, 125VA.


• Configurable as two independent banks of multiplexers.


• Built-in CJC sensors automatically linearize thermocouples.


• Relay closures stored in on-board memory.


 


GENERAL


40 CHANNELS: 40 channels of 2-pole relay input. All channels configurable to 4-pole.


RELAY TYPE: Latching electromechanical.


ACTUATION TIME: <3ms.


FIRMWARE: Specified for Model 2700 rev. B02, 2701 rev. A01, and 2750 rev. A01


or higher.


 


CAPABILITIES


CHANNELS 1–40: Multiplex one of 40 2-pole or one of 20 4-pole signals into DMM.


 


INPUTS


MAXIMUM SIGNAL LEVEL:


Channels (1–40): 300V DC or rms, 1A switched, 60W, 125VA maximum.


CONTACT LIFE (typ): >105 operations at max. signal level.


>108 operations cold switching.


CONTACT RESISTANCE: <1Ω at end of contact life.


CONTACT POTENTIAL: <±500nV typical per contact, 1μV max.


<±500nV typical per contact pair, 1μV max.


OFFSET CURRENT: <100pA.


CONNECTOR TYPE: Screw terminal, #20 AWG wire size.


ISOLATION BETWEEN ANY TWO TERMINALS: >1010Ω, <100pF.


ISOLATION BETWEEN ANY TERMINAL AND EARTH: >109Ω, <200pF.


CROSS TALK (10MHz, 50Ω Load): <–40dB.


INSERTION LOSS (50Ω Source, 50Ω Load): <0.1dB below 1MHz.


<3dB below 2MHz.


COMMON MODE VOLTAGE: 300V between any terminal and chassis.


TEMPERATURE ACCURACY USING INTERNAL CJC: 1.0°C (see mainframe specification


for details).


 


ENVIRONMENTAL


OPERATING ENVIRONMENT: Specified for 0°C to 50°C.


Specified to 80% R.H. at 35°C.


STORAGE ENVIRONMENT: –25°C to 65°C.


WEIGHT: 0.52kg (1.16 lb).


ACCESSORIES AVAILABLE:


Model 7401 Type K Thermocouple Wire, 30.5m (100 ft).