Product Short Description
Product Name: 8‑Channel Safety‑Rated Analog Input Module (PAC8000 Series)
Product Overview:
A safety‑certified analog input module that acquires 4‑20 mA field signals in hazardous (Zone 2 / Div 2) and general industrial areas, with HART pass‑through and galvanic isolation.
Description
Technical Specifications:
|
Parameter
|
Specification
|
|---|---|
|
Input Channels
|
8 single‑ended, 4‑20 mA (full range 1‑23 mA)
|
|
Resolution
|
16‑bit per channel
|
|
Scan Time
|
25 ms per channel
|
|
HART Polling
|
0.75 s per channel
|
|
Accuracy
|
±0.1 % of full scale (temp‑stable)
|
|
Isolation
|
100 V AC (channel‑to‑railbus) galvanic
|
|
Field Power
|
24 V DC bussed from carrier (8914‑PS‑AC)
|
|
System Current
|
70 mA
|
|
Protection
|
Overvoltage, short‑circuit, surge; open/short detection
|
|
Safety Certification
|
ATEX, IECEx, FM, CSA (Zone 2 IIC T6; Class I Div 2)
|
|
Operating Temp.
|
‑40 °C to +70 °C
|
|
Storage Temp.
|
‑40 °C to +85 °C
|
|
Humidity
|
5 – 95 % RH, non‑condensing
|
|
Dimensions
|
69 mm (W) × 232 mm (D) × 138 mm (H)
|
|
Weight
|
≈ 1.2 kg
|
|
Mounting
|
DIN rail or panel via PAC8000 carrier
|
Functional Features:
-
SIL‑rated Acquisition – Suitable for Safety Instrumented Systems (SIS) and critical process monitoring.
-
HART Pass‑Through – Access diagnostics, variables, and status from HART‑enabled transmitters.
-
Hot‑Swappable – Module replacement without system shutdown.
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Non‑Incendive Field Circuits – Zone 2 / Div 2 certified.
-
Comprehensive Diagnostics – Per‑channel fault reporting.
Application Scenarios: SIS loops, emergency shutdown (ESD) analog inputs, process safety monitoring, hazardous‑area transmitter interfacing.
Working Principle: Each channel receives a 4‑20 mA signal, conditions it through a 16‑bit ADC, applies galvanic isolation, and transmits digitized data over the PAC8000 railbus; HART tones are extracted and passed to the host.
Installation Requirements: Mount onto a compatible PAC8000 carrier (8704/8707/8709‑CA); ensure 24 V DC field power is supplied from 8914‑PS‑AC; wire field devices using non‑incendive wiring practices.
Usage Notes: Do not exceed 23 mA input; verify SIL requirements before deployment; perform proof‑test per safety plan.
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