1. General Introduction
The AI825 Analog Input Module has 4 individually galvanic isolated, bipolar current/voltage inputs. Each channel can be either a voltage or current input.
The module has a direct current input that withstand up to 6.3 V and a over voltage protected current input that withstand up to +30 V d.c. The current is limited by a PTC resistor.
Power to the input stages is converted from the 24 V on the Module Bus
2. Specification of AI825
General info | |
Type | Analog Input |
Signal specification | -20..+20 mA, 0(4)..20 mA, -10..+10 V, 0(2)..10V |
Article number | 3BSE036456R1 |
Number of channels | 4 |
HART | No |
SOE | No |
Redundancy | No |
High Integrity | No |
Intrinsic safety | No |
Mechanics | S800 |
Detailed data | |
Resolution | 14 bit plus sign |
Input impedance | 10 MΩ (voltage input) 50 Ω (current input) |
Isolation | Individually isolated, channel-to-channel and to circuit common |
Under/over range | ± 15% |
Error | Max 0,1% |
Temperature drift | Max. 47 ppm/°C (0..10V), Max. 34 ppm/°C (±10V), Max. 78 ppm/°C (0..20mA), Max. 57 ppm/°C (±20mA) |
Input filter (rise time 0-90%) | 115 ms (voltage input), 130 ms (current input)290 ms |
Update cycle time | <10 ms |
Maximum field cable length | 600 meters (656 yards) |
CMRR, 50Hz, 60Hz | 120 dB |
NMRR, 50Hz, 60Hz | > 40dBat 50 Hz, >55 dB at 60 Hz |
Rated insulation voltage | 250 V |
Dielectric test voltage | 1900 V d.c. ch-ch, 3250 V d.c. ch-ground/system, |
Power dissipation | Typ. 2.5 W, Max. 3.2 W |
Current consumption +5 V Module bus | Typ. 70 mA, Max. 100 mA |
Current consumption +24 V Module bus | Typ. 90 mA, Max. 110 mA |
Current consumption +24 V external | 0 |
Diagnostics | |
Front LED’s | F(ault), R(un), W(arning) |
Supervision | Internal Power Supply |
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 | - |
Marine certification | - |
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 | TU811, TU813, TU831 |
Keying code | DA |
Dimensions | |
Width | 45 mm (1.77”) |
Depth | 102 mm (4.01”), 111 mm (4.37”) including connector |
Height | 119 mm (4.7”) |
Weight | 0.22 kg (0.49 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 |
