Datasheet
TEK.COM 37
DAQ6510 Data Acquisition and Logging, Multimeter System
The 7710 plug-in module offers 20 channels of 2-pole or 10 channels
of 4-pole relay input that can be configured as two independent
banks of multiplexers. The relays are solid state, providing long
life and low maintenance. Solid-state relays usually have 100
times longer life than mechanical relays. It is ideal for long-term
data logging applications as well as for demanding high-speed
applications.
Key Features
• 20 channels for general purpose measurements with scanning
speeds up to 800 channels/s
• High speed production or ATE testing up to 500 channels/s
• Long lifetime solid state relay
• Removable screw terminals
Series 7700 Plug-In Switch Modules
Card Source
Card Sense
Channel 1
Ch. 21
Ch. 22
Channel 10
Channel 11
Channel 20
HI
LO
HI
LO
HI
LO
HI
LO
HI
LO
HI
LO
HI
LO
HI
LO
To Mainframe
Backplane
Channel 23
2-Pole (closed)
4-Pole (open)
Cold Junction
Ref 3x
Cold Junction
Ref 3x
7710 20-channel Solid-state Differential Multiplexer
with Automatic CJC
Datasheet
Specifications
Capabilities
Maximum Signal Level
Any channel to any channel (1–20) 60 VDC or 42 V
rms, 100 mA switched, 6 W, 4.2 VA maximum.
Common Mode Voltage
300 VDC or 300 Vrms (425 V peak) maximum between
any terminal and chassis.
Contact Life >10
10
operations at cold switching or max signal level
(guaranteed by design).
Relay Drive Current 6 mA per channel continuous, 25 mA during initial
pulse.
Contact Resistance <10 Ω per channel or <5 Ω per conductor. Refer to the
7710 User’s Guide for measurement considerations
when used on the instrument 1 Ω or 10 Ω ranges.
Contact Potential <3 μV per pair.
Offset Current <3 nA @ 23°C (per channel); additional 0.13 nA/°C
>23°C.
Connector Type 3.5 mm removable screw terminals, #20 AWG
wire size.
Isolation Between Any Two Terminals: >10
10
Ω @ 23°C, > 8×10
9
Ω @ 50°C,
<100 pF.
Isolation Between Any Terminal and Earth: >10
10
Ω, <100 pF.
Crosstalk (CH-CH, 500 kHz, 50 Ω Load): <–40 dB.
Insertion Loss (50 Ω Source, 50 Ω Load)
<1 dB below 500 kHz.
Scanning Speeds (see mainframe specifications for details)
Multiple Channels, Into Memory
7710 Scanning DCV: >800.
7710 Scanning DCV alternating 2WΩ: >400.
General
Channels 20 channels of 2-pole relay input. All channels
configurable to 4-pole.
Relay Type Solid state opto-coupled FET.
Actuation Time <0.5 ms (100 mA load).
Environmental Operating Environment: Specified for 0° to 50°C.
Specified to 80% R.H. at 35°C.
Storage Environment: –25° to 65°C.
EMC: Conforms to European Union EMC Directive.
Safety: Conforms to European Union Low Voltage
Directive
RoHS: Conforms to European Union RoHS Directive
Warranty: 1 year
Weight 0.45 kg (1 lb).
Supplied Accessories
CC-92-1 Set of 20 Cable Ties
TL-23 Screwdriver
Available Services
7710-3Y-EW 1-year factory warranty extended to 3 years from date
of shipment
Ordering Information
7710 20-channel Solid-state Differential Multiplexer Module