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NEW ABB 3BSC690141R1 S800 I/O Analog Input Module AI893 PR:C
Description of AI893 :
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.
General Information
| Type | Analog Input |
| Signal specification | RTD or TC |
| Article number | 3BSC690141R1 |
| Number of channels | 8 |
| Signal type | Differential |
| HART | No |
| SOE | No |
| Redundancy | No |
| High integrity | No |
| Intrinsic safety | Yes |
| Mechanics | S800 |
I/O Modules
| AI801 | AI810 | AI815 | AI820 | AI825 |
| AI830A | AI835A | AI843 | AI845 | AI880A |
| AI890 | AI893 | AI895 | AO801 | AO810V2 |
| AO815 | AO820 | AO845A | AO890 | AO895 |
| DI801 | DI802 | DI803 | DI810 | DI811 |
| DI814 | DI818 | DI820 | DI821 | DI825 |
| DI828 | DI830 | DI831 | DI840 | DI880 |
| DI890 | DO801 | DO802 | DO810 | DO814 |
| DO815 | DO818 | DO820 | DO821 | DO828 |
| DO840 | DO880 | DO890 | DP820 | DP840 |
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 |
Diagnostics
| Front LED’s | F(ault), R(un), W(arning) |
| Supervision | Open circuit, Short circuit for RTD |
Features and benefits
• 1 group of 8 channels isolated from ground.
• 15 Bit + sign resolution.
• Ex certified inputs.
Compability
| Use with MTU | TU890, TU891 |
| Keying code | BA |
Dimensions
| Height | 119 mm (4.7”) |
| Width | 45 mm (1.77”) |
| Depth | 102 mm (4.01”), 111 mm (4.37”) including connector |
| Weight | 0.16 kg (0.35 lbs.) |
Terminal:
| TU814V1 | TU810V1 | TU833 | TU838 | TU812V1 | TU850 | TU830V1 |
Some ABB items sold by WTL:
WTL is not liable for any personal injury or property damage resulting from the use of this equipment. It is
buyer’s responsibility as to the safe handling & operation of this equipment and to verify equipment is
compliance to their machinery.
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