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Devis Rapide: Keithley 3740

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Keithley 3740

Configuration

32 Channel Isolated Switch Card

Modèle

3740

Gamme de produits

Multimeter

Fabricant

Keithley

Cette configuration a les caractéristiques suivantes:

MultimeterData AcquisitionCounters & Function GeneratorsData Acquistion

Configurations

Caractéristiques principales

Description produit

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Configuration

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Description produit

The 3740 offers 28 general-purpose form C channels that are ideal for routing power or other control devices. For higher power applications of up to 7 A, four additional high current form A channels are provided.

If any general purpose signal requires routing to the Series 3700A mainframe backplane, terminal blocks are located on the card, which are enabled with jumpers. Custom configurations can be created with the user accessible terminal blocks. For additional protection, an onboard temperature sensor will notify the mainframe when the card’s operating temperature exceeds 70°C, compromising system specifications.

The 3740 uses two 50-pin male D-sub connectors for signal connections. For screw terminal connections, use the detachable 3740-ST accessory.

Key Features

28 general purpose Form C relays rated for 300 V, 2 A switched or 3 A carry signal capacity; 60 Ω, 125 VA

4 high current Form A relays rated for 250 VAC, 7 A or 30 VDC, 7 A switched capacity; 210 Ω

Analog backplane connection relays provided for user interconnections

Screw terminal connections provided on removable 3740-ST accessory

Relay closures stored in onboard memory

Latching electromechanical relays

Specifications
Series 3700A System Switch/Multimeter and Plug-In Cards
Model Overview
Model	Description
Mainframes
3706A	Six-Slot System Switch with High Performance DMM
3706A-NFP	Six-Slot System Switch with High Performance DMM, Without front panel display and keypad
3706A-S	Six-Slot System Switch
3706A-SNFP	Six-Slot System Switch Without front panel display and keypad
Plug-in Cards	Description
3720	Dual 1×30 Multiplexer Card (Auto CJC when used with 3720-ST)
3721	Dual 1×20 Multiplexer Card (Auto CJC when used with 3721-ST)
3722	Dual 1×48, High Density, Multiplexer Card
3723	Dual 1×30, High Speed, Reed Relay Multiplexer Card
3724	Dual 1×30 FET Multiplexer Card
3730	6×16, High Density, Matrix Card
3731	6×16 High Speed, Reed Relay Matrix Card
3732	Quad 4×28, Ultra-High Density, Reed Relay Matrix Card
3740	32 Channel Isolated Switch Card
3750	Multifunction Control Card
3760	10-Channel High Current Multiplexer Card
3761	10-Channel Low Current Multiplexer Card
3762	10-Channel High Voltage Multiplexer Card
3765	Hall Effect Card

Specifications
Plug-in Cards for; Series 3700A Mainframes
Model Overview
Model	Channels	Card Configuration	Type of Relay	Contact Configuration	Max. Voltage	Max. Current Switched
3720	60 (Dual 1×30)	Multiplexer	Latching electro mechanical	2 Form A	300 V	1 A
3721	40 (Dual 1×20)	Multiplexer	Latching electro mechanical	2 Form A	300 V (ch 1–40) 60 V (ch 41–42)	2 A (ch 1–40) 3 A (ch 41–42)
3722	96 (Dual 1×48)	Multiplexer	Latching electro mechanical	2 Form A	300 V	1 A
3723	60 (Dual 1×30) or 120 single-pole (Dual 1×60)	Multiplexer	Dry reed	1 Form A	200 V	1 A
3724	60 (Dual 1×30)	Multiplexer	FET solid-state	2 Form A	200 V	0.1 A
3730	6×16	Matrix	Latching electro mechanical	2 Form A	300 V	1 A
3731	6×16	Matrix	Dry reed	2 Form A	200 V	1 A
3732	448 crosspoints (Quad 4×28)	Matrix	Dry reed	1 Form A	200 V	0.75 A
3740	32	Independent	Latching electro mechanical	28 Form C 4 Form A	300 VDC/250 VAC (Form A)	2 A (Form C) 7 A (Form A)
3750	40 digital I/O 4 counter/totalizers 2 isolated analog outputs	Independent	N/A	N/A	N/A	N/A
3760	10	Multiplexer	Non latching electro mechanical	2 Form C	500 V	5 A
3761	10	Multiplexer	Dry reed	Form A	30 V	100 mA
3762	10	Multiplexer	Dry reed	2 Form A	1000 V	0.5 A
3765	4×5	Matrix	Non latching electro mechanical and Dry reed	Form A	8 V	100 mA

Specifications
Plug-in Cards for; Series 3700A Mainframes
Series Overview
Model	Comments
3720	2 independent 1×30 multiplexers. Automatic temperature reference when used with screw terminal accessory (3720-ST)
3721	2 independent 1×20 multiplexers. Automatic temperature reference when used with screw terminal accessory (3721-ST)
3722	2 independent 1×48 multiplexers
3723	2 independent 1×30 multiplexers
3724	2 independent 1×30 multiplexers. Automatic temperature reference when used with screw terminal accessory (3724-ST)
3730	Columns can be expanded through the backplane or isolated by relays
3731	Relay actuation time of 0.5 ms. Columns can be expanded through the backplane or isolated by relays
3732	Banks can be connected together via bank configuration relays to create a single 4×112 or dual 4×56 matrix. Analog backplane relays also included for card-to-card expansion. Row expansion with 3732-ST-R accessory to create a dual 8×28 or single 16×28 matrix.
3740	32 general purpose independent channels.
3750	All-in-one card design. 40 bidirectional I/O. Four 32- bit counter/totalizers. 2 programmable analog (V or I) outputs.
3760	Single 1×10 high current multiplexer
3761	Single 1×10 low current multiplexer
3762	Single 1×10 high voltage multiplexer
3765	Specialty 4×5 matrix for Hall Effect and van der Pauw measurements.

Specifications
3740 General Purpose Card with 32 Independent Channels
Accessories Available
Model Number	Description
3721-MTC-1.5	50-pin D-sub Female to Male Cable, 1.5 m (5 ft.)
3721-MTC-3	50-pin D-sub Female to Male Cable, 3 m (10 ft.)
3740-ST	Screw Terminal Block
3790-KIT50-R	50-pin Female D-sub Connector Kit (contains 2 female D-sub connectors and 100 solder cup contacts)

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