GENERAL
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Measurement
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Oxygen
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Configuration
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Rack or table unit
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Measuring range
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4 linear measuring ranges free selectable, lowest span 1 %,
basis selection 0 to 1, 0 to 10, 0 to 25, and 0 to 100 vol% O2,
Manual, automatic or remote range control and range indication is possible
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External range indication
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Two line 16-sign LCD display, resolution 0.01 vol.% O2, continuous O2 indication and call off
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Display text
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Languages: English, French or German.
O2 transducer temperature, mA-signal, measuring range, time, date, failure/alarm information (and process pressure)
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Response time for 90 % FSD
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< 3 seconds at 60 Nl/hr air
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Accuracy after calibration
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Deviation ±1 % of 2 to 100 % span, ±2 % of 1 % span
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Reproducibility
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Deviation: <1 % of span
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Influence of ambient temperature
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No influence up to 50 °C
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Influence of barometric pressure
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No influence within the range 0.6 to 1.6 bar abs. with integrated pressure compensation
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Influence of sample gas flow
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Variation of gas flow between 0 to 60 Nl/hr air will cause a difference of < 0.1 vol.% O2
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Sample gas inlet pressure
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0.01 up to 0.6 bar g (PMA100 and 100L require positive pressure for adequate flow rate, no pump inside)
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Sample gas outlet pressure
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Recommendation: discharge freely into atmosphere, however max. 0.6 to 1.6 bar abs
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Flow rate of sample gas
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25 to 60 Nl/hr air
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Temperature of sample gas
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-10 to +50 °C, dry gas
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O2 transducer temperature
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Fixed at 55 °C
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Ambient temperature
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-10 to +50 °C
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Storage temperature
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-20 to +60 °C, relative humidity 0 to 90 %RH
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Certification
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European
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CE marked
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IP protection
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IP 40 EN 60529
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Electrical standard
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EN 61010
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Shipping
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Shipping weight
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11 Kg
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MECHANICAL
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Dimension
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4 U H x 84 HP W x 350 mm D + approx 60 mm installation space
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Enclosure
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19 inch rack mounting with front handles, grey RAL 7032
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Wetted materials
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Platinum, Glass, 316Ti Stainless Steel, Epoxy resin, PTFE, PVDF, FPM
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ELECTRICAL / UTILITIES
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Power
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Internal power unit 230 VAC standard, 115 VAC available ± 10%, 40 to 60 Hz. 35 VA
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Connections
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Mains: 3-pole chassis plug, signals: 4x sub-D plug
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Cable length
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2 m for mains supply
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Sample gas connection
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1/8 " NPT internal thread, option with tube connector DN 4/6 / PVDF available
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Binary inputs free configurable
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Potential free, 4 x 12 to 24 VDC, max. 20 mA or internal supply voltage 12 VDC
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Flow alarm
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Thermo-conductive flow sensor, mounted downstream O2 measuring cell
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Status alarm
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For min. flow alarm, O2 transducer temperature < 50 °C, central processing unit failure, pressure sensor: LED indication and potential free contact output, NO, max. 48 VDC, 500 mA, 15 W
and mA-output indication - example 22 mA
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Alarm contact
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For exceed/remain measuring range truncate calibration, external alarm, alternatively oxygen level alarms: LED indication and potential free contact output, NO, max. 48 VDC, 500 mA, 15 W
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Outputs
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Output signal
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Selection: isolated 0 to 20, 2 to 20, 4 to 20, 4 to 20.5 mA for the selected range, max. load 500 Ω(i)
(interface RS232 type AK-communication protocol - bi-directional, option interface RS485 type)
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Binary outputs
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Drive of 3 external solenoid valves for calibration, 3 x 24 VDC, max. 400 mA (PMA 100L: 24 VDC, max. 400 mA)
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All specifications subject to change
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