1. General Introduction
The AO820 Analog Output Module has 4 bipolar analog output channels. The choice of current or voltage output is configurable for each channel. There are separate sets of terminals for voltage and current outputs, and it is up to the user to wire outputs properly. The only differences between current or voltage channel configuration is in software settings.
To supervise the communication to the A/D-converters the output data is read back and verified. The open circuit diagnostics are read continuously as well. The process voltage supervision input give channel error signals if the voltage disappears. The error signal can be read via the Module Bus.
2. Specification of AO820
General info | |
Type | Analog Output |
Signal specification | -20 mA...+20 mA, 0...20 mA, 4...20 mA, -10 V...+10 V, 0...10 V, 2...10 V |
Article number | 3BSE008546R1 |
Number of channels | 4 |
HART | No |
SOE | No |
Redundancy | No |
High Integrity | No |
Intrinsic safety | No |
Mechanics | S800 |
Detailed data | |
Resolution | 12 bits including sign |
Isolation | Individually isolated - channel-to-channel and channel to circuit common |
Under/over range | ±15% |
Output load | ≤ 550 Ω ≥ 5 kΩ (voltage output) |
Error | Max. 0.1% (voltage); Typ. 0.1% at 250 ohms, Max 0,15% (current) |
Temperature drift | Max 90 ppm/°C |
Rise Time | < 0.7 ms |
Update cycle time | ≤ 1.5 ms |
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 | Typ. 6 W |
Current consumption +5 V Module bus | Max 100 mA |
Current consumption +24 V Module bus | Max 260 mA |
Diagnostics | |
Front LED’s | F(ault), R(un), W(arning), O(SP) |
Supervision | Module Error: Output power low. Channel Error: Open circuit (for current>1 mA) |
Status indication of supervision | Module Error, Module Warning, Channel error |
Environmental and certification | |
CE mark | Yes |
Electrical safety | IEC 61131-2, UL 508 |
Hazardous location | C1 Div 2 cULus, C1 Zone 2 cULus, ATEX Zone 2 |
Marine certification | ABS,BV,DNV-GL,LR,RS,CCS |
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 | TU810, TU812, TU814, TU830, TU833 |
Keying code | BC |
Dimensions | |
Width | 45 mm (1.77”) |
Depth | 102 mm (4.01”), 111 mm (4.37”) including connector |
Height | 119 mm (4.7”) |
Weight | 0.18 kg (0.4 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 |
