19" rack mounted oxygen measurement at % levels
PMA100
temperature controlled
zero supression
auto calibration
RS232 & 485 option
Microprocessor based 19" rack mounting oxygen measurement.
The 19" rack mounting PMA100 and PMA100-L provide fast, accurate and reliable oxygen measurement. The microprocessor based system provides a temperature controlled environment for the sensor, housed in a 19" rack mounting unit.
Paramagnetism is significantly higher for oxygen than other common gases. The M&C magneto-dynamic measurement cell uses this physical phenomenon to provide the most accurate and reliable measurements available.
The small (2 ml) flow cell houses a robust sensor that can have a flow rate of up to 1 l/min. The small cell design improves speed of response and the paramagnetic sensor measures oxygen concentrations with a response time of less than 3 seconds.
The analyser is able to have user selectable ranges. See details on the PMA100 and PMA100-L by selecting the "Versions" tab for the most suitable unit for your application.
| PMA100-L |
PMA100-L Datasheet for oxygen analyser PMA100L The PMA100-L provides user configurable ranges and outputs from 0 to 1% to 0 to 100%. Zero suppression is provided as standard to improve oxygen purity measurements. |
| PMA 100 |
PMA100 Datasheet for oxygen analyser PMA100 The PMA100 provides the same level of performance as the PMA100-L with the addition of:
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GENERAL |
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Measurement |
Oxygen |
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Configuration |
Rack or table unit |
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Measuring range |
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 |
Two line 16-sign LCD display, resolution 0.01 vol.% O2, continuous O2 indication and call off |
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Display text |
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 |
< 3 seconds at 60 Nl/hr air |
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Accuracy after calibration |
Deviation ±1 % of 2 to 100 % span, ±2 % of 1 % span |
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Reproducibility |
Deviation: <1 % of span |
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Influence of ambient temperature |
No influence up to 50 °C |
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Influence of barometric pressure |
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 |
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 |
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 |
Recommendation: discharge freely into atmosphere, however max. 0.6 to 1.6 bar abs |
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Flow rate of sample gas |
25 to 60 Nl/hr air |
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Temperature of sample gas |
-10 to +50 °C, dry gas |
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O2 transducer temperature |
Fixed at 55 °C |
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Ambient temperature |
-10 to +50 °C |
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Storage temperature |
-20 to +60 °C, relative humidity 0 to 90 %RH |
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Certification |
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European |
CE marked |
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IP protection |
IP 40 EN 60529 |
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Electrical standard |
EN 61010 |
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Shipping |
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Shipping weight |
11 Kg |
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MECHANICAL |
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Dimension |
4 U H x 84 HP W x 350 mm D + approx 60 mm installation space |
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Enclosure |
19 inch rack mounting with front handles, grey RAL 7032 |
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Wetted materials |
Platinum, Glass, 316Ti Stainless Steel, Epoxy resin, PTFE, PVDF, FPM |
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ELECTRICAL / UTILITIES |
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Power |
Internal power unit 230 VAC standard, 115 VAC available ± 10%, 40 to 60 Hz. 35 VA |
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Connections |
Mains: 3-pole chassis plug, signals: 4x sub-D plug |
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Cable length |
2 m for mains supply |
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Sample gas connection |
1/8 " NPT internal thread, option with tube connector DN 4/6 / PVDF available |
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Binary inputs free configurable |
Potential free, 4 x 12 to 24 VDC, max. 20 mA or internal supply voltage 12 VDC |
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Flow alarm |
Thermo-conductive flow sensor, mounted downstream O2 measuring cell |
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Status alarm |
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 |
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 |
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 |
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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