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ABB Digital I O Module AI893 3BSC690141R1 ABB S800 I/O modules 500 V a.c.

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ABB Digital I O Module AI893 3BSC690141R1 ABB S800 I/O modules 500 V a.c.

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Brand Name :	ABB
Model Number :	AI893
Price :	Negotiations
Delivery Time :	2-3 working days

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ABB Digital I O Module AI893 3BSC690141R1 ABB S800 I/O modules 500 V a.c.

ABB Digital I O Module AI893 3BSC690141R1 ABB S800 I/O modules 500 V a.c.

Intrinsic Safety parameters

U0 (Groups CENELEC USA)	IIC
I0 (Groups CENELEC USA)	IIB
P0 (Groups CENELEC USA)	IIA
U0 - C0 (uF)	1.41
U0 -L0 (mH)	88
U0 -L/R (uH/O)	586
I0 - C0 (uF)	9
I0 -L0 (mH)	352
I0 -L/R (uH/O)	2347
P0 - C0 (uF)	36
P0 -L0 (mH)	706
P0 -L/R (uH/O)	4707

Environment and certification

CE mark	Yes
Electrical safety	IEC 61131-2, FM
Hazardous Location	C1 Div 2 cULus, C1 Zone 2 cULus, ATEX Zone 2
Marine certification	-
Protection rating	IP20 according to IEC 60529
Corrosive atmosphere ISA-S71.04	G3
Climatic operating conditions	0 to +55 °C (Storage -40 to +70 °C), RH=5 to 95 % no condensation, IEC/EN 61131-2
Pollution degree	Degree 2, IEC 60664-1
Mechanical operating conditions	IEC/EN 61131-2
EMC	EN 61000-6-4, EN 61000-6-2
Overvoltage categories	IEC/EN 60664-1, EN 50178
Equipment class	Class I according to IEC 61140; (earth protected)
Max ambient temperature	55 °C (131 °F), for vertical mounting in compact MTU 40 °C (104 °F)
RoHS compliance	EN 50581:2012
WEEE compliance	DIRECTIVE/2012/19/EU

Detailed data

Resolution	15 bit + sign
Input impedance	>10 MΩ
Isolation	Groupwise isolated from ground
Error	TC/mV: <20 µV ; RTD (0-400 Ω): <0.1 Ω ; RTD (0-4000 Ω): <1 Ω
Temperature drift	TC/mV: <20 µV/10°C ; RTD (0-400 Ω): <0.1 Ω/10°C ; RTD (0-4000 Ω): <1 Ω/10°C
Update cycle time	(no of active channels) x 125 + 125 ms
Common mode voltage input	+/- 5V
CMRR, 50Hz, 60Hz	>100 dB
NMRR, 50Hz, 60Hz	>80 dB
Rated insulation voltage	50V
Dielectric test voltage	500 V a.c.
Power dissipation	0.5 W
Current consumption +5 V Modulebus	Typ. 90 mA, Max. <125 mA

The AI893 Analog Input Module has 8 channels. The module includes Intrinsic Safety protection components on each channel for connection to process equipment in hazardous areas without the need for additional external devices.

The module can be configured for either 2 or 3-wire RTD sensors or for TC sensors. In TC mode, channel 8 be used for Cold Junction (ambient) temperature measurements, thus serving as CJ-channel for channel 1...7. The junction temperature may be measured locally on the MTUs screw terminals, or on a connection unit distant from the device. The cold junction temperature is measured with a 3-wire Pt 100 sensor. Alternatively, a fix junction temperature for the module may be set by the user (as parameter). Channel 8 may be used in the same manner as channel 1-7 when no CJ-temperature measurement is needed.

TU890 and TU891 Compact MTU can be used with this module and it enables three wire connection to the process devices without additional terminals. TU890 for Ex applications and TU891 for non Ex applications.

Features and benefits

• 8 differential input channels for 2 or 3-wire RTD and Thermocouple.

• 1 group of 8 channels isolated from ground.

• 15 Bit + sign resolution.

• Ex certified inputs.

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