Multimeter Model: 7703

 Multimeter

 

 

萬用錶

Model : 7703

 

 

* FEATURES

 

• There are 32 channels for general purpose measurement.

 

• Relay actuation time of less than 1ms for high-speed scanning.

 

• 2 or 4 wire measurement.

 

• Two 50-pin female “D-sub” connectors are standard for secure hook-up and

 

quick teardown.

 

• Configurable as two independent banks of multiplexers.

 

• Reed relay based design with 300 volt, 500mA; 10VA.

 

• Two mating connector with solder cup (Model 7788) are supplied.

 

• Relay closures stored in on-board memory.

 

 

 

* GENERAL

 

32 CHANNELS: 32 channels of 2-pole relay input.

 

All channels configurable to 4-pole.

 

RELAY TYPE: Reed.

 

ACTUATION TIME: <1ms.

 

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

 

or higher.

 

CAPABILITIES

 

CHANNELS 1-32: Multiplex one of 32 2-pole or one of 16 4-pole signals into DMM.

 

 

 

* INPUTS

 

MAXIMUM SIGNAL LEVEL:

 

Channels (1-32): 300V DC or rms, 0.5A switched, 10W maximum.

 

Contact Life (typ): >5×104 operations at max signal level.

 

>108 operations cold switching.

 

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

 

CONTACT POTENTIAL: <±3μV typical per contact, 6μV max.

 

<±3μV typical per contact pair, 6μV max.

 

OFFSET CURRENT: <100pA.

 

CONNECTOR TYPE: 50 pin D-sub×2.

 

RELAY DRIVE CURRENT: 20mA per channel.

 

ISOLATION BETWEEN ANY TWO TERMINALS: >109Ω, <200pF.

 

ISOLATION BETWEEN ANY TERMINAL AND EARTH: >109Ω, <400pF.

 

CROSS TALK (1 MHz, 50Ω Load): <–40dB.

 

INSERTION LOSS (50Ω Source, 50Ω Load): <0.35dB below 1MHz.

 

<3dB below 2MHz.

 

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

 

 

 

* 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: 0.8kg (1.75 lbs).

 

ACCESSORIES AVAILABLE:

 

Model 7705-MTC-2 50 Pin Male to Female DSUB Cable, 2m (6.6 ft).