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TH0240 Resistance Multiplexer

TH0240 is a precise resistance channel-switch device, integrates ultra sensitive, high efficiency, polarized sealed relay, which can eliminate the self-heating effect in the relay. TH0240 improves the efficiency by eliminating the need to continually change leads when measuring groups of resistors.
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  • TH0240

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TH0240 Standard Resistance Multiplexer

TH0240 Standard Resistance Multiplexer

1. Summary

TH0240 is a precise resistance channel-switch device, integrates ultra sensitive, high efficiency, polarized sealed relay, which can eliminate the self-heating effect in the relay. TH0240 improves the efficiency by eliminating the need to continually change leads when measuring groups of resistors.


2. Features

10 four terminal channels.

Sealed Relays with 3 A carrying capacity.

Copper tellurium terminal.

Insulation resistance> 1012 Ω.

The LED indicator on front panel is convenient for observing the selected channel.

Front Panel or RS232 interface.


3. Application

Establish automatic resistance measurement system

TH0240 Establish automatic resistance measurement system

• Multiple (up to 10) standard resistors.

• The channel of reference standard resistance can be automatically switched according to the value of measured resistance.


4. Specifications

Wiring

Four terminal

Terminal type

Tellurium copper

Input channel

10 channels (rear panel)

Output channel

Single channel (rear panel)

Thermal EMF’s

< 50 nV

Error contribution

< 20 nV

Max carrying/switching current

3 A @ 30 V(DC)

Contact resistance

< 0.05 Ω

Communication interface

RS232


5. General Specifications

Power supply

AC ( 220±22 )V,( 50±2 ) Hz

Warm up time

≥ 30 min

Temperature performance

Operating temperature: (23±5) °C ~ 45°C;

Storage temperature: 0°C ~ 40°C

Humidity performance

Operating humidity: ( 20% ~ 85% ) R·H, No condensation;

Storage humidity: < 95% R·H, No condensation;

Communication interface

RS232

Weight

About 6.5 kg

Dimensions

380 mm(W)X 260 mm(D)X 200 mm(H)



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