SET-1250 4-20mA Current Sink Card

SET 1250 – 32Ch 4-20mA current sink card

The SET-1250 4-20mA Current Sink Card provides current sink simulation for 32 isolated channels and supports an extended range of 0-24.6mA.

Each channel provides a disconnection relay and a short circuit MOSFET, by which open and short circuit faults can be simulated.

The short circuit MOSFET has an overcurrent protection with an integrated current limitation.

The desired simulation value and fault insertion can be set for each channel independently.

The SET-1250 provides both RTI API and SLSC API for configuring the outputs.

Specifications

	Condition	Value	Comment
Max. Input Voltage	Any Front Pin to GND (Except the GND pins)	60 VDC
Min. Input Voltage	Any Front Pin to GND (Except the GND pins)	-60 VDC
Max. Differential Input Voltage	Max. voltage between positive and negative signal pin of a channell needed for 24.6mA	+30 VDC	Higher voltage might cause damage.
Min. Differential Input Voltage	Min. voltage between positive and negative signal pin of a channel needed for 24.6mA	+3.2 VDC	Lower voltages will lead to a lower current limit.
Min. Differential Input Voltage		0 VDC	Negative voltages might cause damage.
Max. Input Current when Short Circuit MOSFET is active		200 mA	Higher currents might cause damage

	Condition	Value
Max. Current Sink Value		24.6 mA
Min. Input Current when Short Circuit MOSFET is active	Differential Input Voltage > 2 V	160mA
Expected Electrical Lifetime	1 A, 30 V DC resistive	Min 105 operations
Min. Resistance in normal operation		100Ω ± 1%
Resistance of Short Circuit MOSFET	@ 200 mA	< 2 Ω
Gain Error		+1% / -2.6%
Offset Error		± 0.09 mA

	Condition	Value	Comment
Module Dimensions	Excluding ejector	144.32mm x 30.48mm x 302mm (H x W x D)	Standard SLSC card size
Front Panel Connector		2x female DB -44 high-density D-Sub with 4-40 UNC screw lock	For mating connectors and cables, see below
RTI Connector		2mm hard metric per IEC 61076-101	Any RTI marked

	Condition	Value
Operating Humidity	Relative, non-condensing	10% – 90%
Storage Humidity	Relative, non-condensing	5% – 95%
Operating Temperature	Forced-air cooling from chassis	0 °C to +40 °C
Storage Temperature		-40 °C to +85 °C
Maximum Altitude		2000 m