1. General Introduction
The AO890 Analog Output 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.
Each channel can drive up to 20 mA loop current into a field load such as an Ex certified current-to-pressure converter and is limited to 22 mA in overload conditions.
TU890 and TU891 Compact MTU can be used with this module and it enables two wire connections to the process devices without additional terminals. TU890 for Ex applications and TU891 for non Ex applications.
2. Specification of AO890
General info | |
Type | Analog Output |
Signal specification | 0..20 mA, 4..20 mA |
Article number | 3BSC690072R1 |
Number of channels | 8 |
Signal type | Unipolar single ended |
HART | No |
SOE | No |
Redundancy | No |
High Integrity | No |
Intrinsic safety | Yes |
Mechanics | S800 |
Detailed data | |
Resolution | 12 bits |
Isolation | GroupWise isolated from ground |
Under/over range | 0 / 22 mA |
Output load | <725 ohms at 20 mA, no over-range <625 ohms at up to 22 mA |
Error | Typ. 0.05%, Max. 0.1% at 650 ohms |
Temperature drift | Typ. 50 ppm/°C, Max. 100 ppm/°C |
Rise Time | 1 ms (10% to 90%) |
Current limiting | Short circuit proof current limited output |
Maximum field cable length | 600 meters (656 yards) |
Rated insulation voltage | 50 V |
Dielectric test voltage | 500 V a.c. |
Power dissipation | 3.1 W |
Current consumption +5 V Module bus | 80 mA |
Current consumption +24 V Modulebus | Typ. 110 mA , Max. <150 mA |
Current consumption +24 V external | Typ. 220 mA, Max. <300 mA |
Diagnostics | |
Front LED’s | F(ault), R(un), W(arning), O(SP) |
Supervision | Internal process supply, Open wire if > 1 mA is set |
Environmental and certification | |
CE mark | Yes |
Electrical safety | IEC 61131-2, UL 508 |
Hazardous location | ATEX/IECEx Zone 2 with interface to Zone 0, cFMus C1, Div 2/Zone 2 with interface to C1, C2, C3 Div 1/Zone 0 |
Marine certification | ABS, BV, DNV-GL, LR, RS, CCS BV, DNV-GL, LR |
Protection rating | IP20 according to IEC 60529 |
Corrosive atmosphere ISA-S71.04 | G3 |
Climatic operating conditions | 0 to +55 °C (Storage -25 to +70 °C), RH=5 to 95 % no condensation, IEC/EN61131-2 |
Pollution degree | Degree 2, IEC 60664-1 |
Mechanical operating conditions | IEC/EN 61131-2 |
EMC | EN 61000-6-4 and 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 40 °C (104 °F) |
RoHS compliance | DIRECTIVE/2011/65/EU (EN 50581:2012) |
WEEE compliance | DIRECTIVE/2012/19/EU |
Comp ability | |
Use with MTU | TU890 and TU891 |
Keying code | AD |
Intrinsic Safety parameters | |
U0 (Groups CENELEC USA) | IIC |
I0 (Groups CENELEC USA) | IIB |
P0 (Groups CENELEC USA) | IIA |
U0 - C0 (uF) | 0.089 |
U0 -L0 (mH) | 4.1 |
U0 -L/R (uH/O) | 55 |
I0 - C0 (uF) | 0.704 |
I0 -L0 (mH) | 16.4 |
I0 -L/R (uH/O) | 222 |
P0 - C0 (uF) | 2.23 |
P0 -L0 (mH) | 16.4 |
P0 -L/R (uH/O) | 443 |
Dimensions | |
Width | 45 mm (1.77”) |
Depth | 102 mm (4.01”), 111 mm (4.37”) including connector |
Height | 119 mm (4.7”) |
Weight | 0.2 kg (0.44 lbs.) |
3. Selection table of I/O Modules
Name | HART | High Integrity | Intrinsic safety | Mechanics | Redundancy | SOE | Type |
AI801 | No | No | No | S800L | No | No | Analog Input |
AI810 | No | No | No | S800 | No | No | Analog Input |
AI815 | Yes | No | No | S800 | No | No | Analog Input |
AI820 | No | No | No | S800 | No | No | Analog Input |
AI825 | No | No | No | S800 | No | No | Analog Input |
AI830A | No | No | No | S800 | No | No | Analog Input |
AI835A | No | No | No | S800 | No | No | Analog Input |
AI843 | No | No | No | S800 | Yes | No | Analog Input |
AI845 | Yes | No | No | S800 | Yes | No | Analog Input |
AI880A | Yes | Yes | No | S800 | Yes | No | Analog Input |
AI890 | No | No | Yes | S800 | No | No | Analog Input |
AI893 | No | No | Yes | S800 | No | No | Analog Input |
AI895 | Yes | No | Yes | S800 | No | No | Analog Input |
AO801 | No | No | No | S800L | No | No | Analog Output |
AO810V2 | No | No | No | S800 | No | No | Analog Output |
AO815 | Yes | No | No | S800 | No | No | Analog Output |
AO820 | No | No | No | S800 | No | No | Analog Output |
AO845A | Yes | No | No | S800 | Yes | No | Analog Output |
AO890 | No | No | Yes | S800 | No | No | Analog Output |
AO895 | Yes | No | Yes | S800 | No | No | Analog Output |
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