7.4
7.1.9 Analogue Outputs
2 x mA outputs, plus 3 x relay outputs. Optionally additional 2 x mA, plus 2 x relay
outputs.
All analogue mA outputs are assignable and selected as 0-20mA or 4-20mA (max.
impedance 1KOhm) or alternatively 0-10V or 2-10V (min. impedance 1MOhm).
Dual ranges on every Analogue output. Optional additional mA outputs should be
specified for 3 component analysers.
All relay outputs are assignable contact pairs selected by links as NC or NO, and are
rated 240VAC/1.0A, 30VDC/1.0A.
7.1.10 Serial Output
Single ASCII data logging output port (RS232).
7.1.11 Inputs
Terminals for external switch contacts are provided for:
• Range change
• Autocalibration/Autocheck initiate
• Key switch (password)
• Flow Sensor
7.1.12 Ingress Protection
Designed to IP65 (without electrical cell heater, IP50 with electrical cell heater).
7.1.13 Optical Purge
Where used, end bosses require total 200cm
3
/min clean, dry purge gas (see Section 4.2)
delivered at 1-3 psig.
Table 7.5 – Serial Output Specification
Baud Rate 2400
Parity Even
Stop Bits 1
Data Bits 8
Handshake Hardware
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