AI843  3BSE028925R1 | Analog input module | CI862K01 3BUA000037R1

Product model: AI843

Item number: 3BSE028925R1

Category Description: Analog input module

Product color: new, not new

Warranty: One year

Stock: Yes

Brand: ABB

dimension

Width 45 mm (1.77 in)

Depth 102 mm (4.01 “), 111 mm (4.37 “) including connector

Height 119 mm (4.7 in)

Weight 0.157 kg (0.35 lb)

Signal specification -30… 75 mV linear, TC type B, C, E, J, K, L, N, R, S, T, and U

Number of channels 8

Detailed data

Resolution 16 bit

Input impedance > 1 MΩ

Isolation groups are isolated from the ground

Error maximum 0.1%

The typical temperature drift is 10 ppm/°C and the maximum is 25 ppm/°C

Input filter (rise time 0-90%) 1.1 Hz

Update cycle time 320 + 80 * (number of active channels) at 50 Hz ms 267 + 67 * (number of active channels) at 60 Hz

Maximum field cable length: 600 meters (656 yards) or up to 500 Ω

Common mode rejection ratio (CMRR), 50Hz, 60Hz 100 dB

NMR, 50 Hz, 60 Hz > 40 dB

Rated insulation voltage: 50 volts

Dielectric test voltage: 500 V AC

Power consumption 1.5W

Current consumption +5 V Modulebus: 60 MA

Current consumption +24 V Modulebus: 50 MA

The AI843 Thermocouple /mV input module provides 8 differential input channels for thermocouple /mV measurements. Each channel can be configured for measurement ranges from -30 mV to +75 mV linear, or TC types B, C, E, J, K, L, N, R, S, T, and U. A separate Pt100 channel is used for “cold end” (ambient) temperature measurement and is therefore used as Ch.1… CJ channel of 8.

The junction temperature can be measured either locally on the MTU screw terminal or on a connection unit far from the device. Alternatively, the fixed junction temperature of the module can be set by the user (as a parameter) or by the application.

Characteristics and advantages

8 differential input channels for thermocouple /mV

Single or redundant operation

A separate channel used as a CJ channel (4-wire Pt100 RTD)

Various thermocouples having the following characteristics: B, C, E, J, K, L, N, R, S, T, and U

16-bit resolution (A/D converter)

The input is monitored to prevent disconnection