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Features
High-density 300 V/2 Amp multiplexing scanning
Can be configured as 2- or 4-wire multiplexers under program control
Supports thermocouple, RTD and thermistor measurements
Optional screw-terminal junction box includes built-in cold junction compensation
Direct routing to DMM through internal analog measurement bus simplifies field wiring
Stub-breaking relays isolate the module from interfering with measurements being made on other modules
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EX1200-3164 Datasheet
16 (1x4) 2-wire 300 V/ 2 A Multiplexer
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Overview
The EX1200-3164 high-density multiplexer module is designed to provide a flexible switching multiplexing architecture with 16 individual 1 x 4 2-wire multiplexers. Up to 96 1 x 4 two-wire channels can be accommodated in a single EX1200 full rack mainframe for maximum density, or mixed and matched with other EX1200 plug-ins for flexibility. Applications include cable harness testing, semiconductor and PCB testing, and those in which multiple points need to be switched to a common resource. All relays also have individual control, and each path allows for hot switching of up to 300 V and 2 A (60 W dc max).
Each bank can be interconnected within a module under program control (via bussing relays) to form larger 2-wire muxes, up to a maximum of 1 x 64. The EX1200 analog bus can be used to configure larger multiplexers across modules as required to eliminate external wiring and helps reduce unterminated stubs effects. The analog bus can also be routed directly to the optional EX1200 series 6.5 digit DMM for direct measurements across the backplane further reduce external wiring. Stub-breaking relays remove the module from the analog bus to minimize a module’s effect on measurements being made through other modules.
An optional terminal block provides screw termination points for external field wiring. This terminal block also includes cold junction compensation reference for more precise temperature measurements.
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Specifications
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Channel Count
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Configured as either 16 (1x4), 8 (1x8), 4 (1x16), 2 (1x32) or 1 (1x64) 2-wire
multiplexers |
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Relay Type
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Electromechanical, Fail-safe
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Maximum Switching Voltage
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300 V AC, 300 V DC
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Maximum Switching Current
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2 A
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Maximum Switching Power
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60 W DC, 125 VA
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Path Resistance
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< 500 mΩ
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Insulation Resistance
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> 1x109 Ω
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Maximum Thermal Offset
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Per Channel (HI-LO)
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< 3 μV
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Capacitance
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Open Channel
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< 50 pF
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Channel-Mainframe
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< 20 pF
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High-Low
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< 50 pF
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Bandwidth (-3 dB), typical 1x4 |
40 MHz typical (1x4) |
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Crosstalk |
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1 MHz
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< -70 dB
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10 MHz
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< -50 dB
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Isolation
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1 MHz
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< -55 dB
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10 MHz
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< -35 dB
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Rated Switch Operations
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Mechanical
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1 x 108 (no load)
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Electrical
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5 x 105 @ 50 V dc, 0.1 A resistive or 10 V dc, 10 mA (resistive)
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Switching Time
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< 3 ms
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Front Panel Connector
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160p DIN
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Ordering Information
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EX1200-3164 |
16 (1x4) 2-wire, 300V/2A multiplexer |
| 70-0363-504 |
Strain relief bracket kit (includes connector – recommended accessory) |
| 70-0363-503 |
Strain relief bracket kit (no connector) |
| 52-0109-000 |
Crimp pin (includes 100 crimp pins) |
| 27-0088-160 |
Mating connector (one per board) |
| 46-0010-000 |
Crimp tool (DIN) |
| 46-0011-000 |
Extraction tool (DIN) |
| 70-0367-008 |
EX1200-TB160-2, differential module |
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