M&C TechGroup PMA 50 EEX Operator's manual - Manual (Page 10)

10
Gas sampling and gas conditioning technology 9-3.15-ME
10 TECHNICAL DATA
Part Number
05A1000 :
05A1000a :
05A2500 :
05A2500a
05A2505 :
05A2505a :
PMA 50 EX, power supply 230V
PMA 50 EX, power supply 115V
PMA 50 EX/P/PD-1-50, power 230V, (not with SIL-certification)
pressure compensation 0,6 - 1,5 bar abs. with purging the enclosure via
two certified ventilate arrestors in the in-
and outlet NPT1/4“i
PMA 50 EX/P/PD-1-50, power 115V, (not with SIL-certification)
pressure compensation 0,6 - 1,5 bar abs. with purging the enclosure via
two certified ventilate arrestors in the in-
and outlet NPT1/4“i
PMA 50 EX/P/PD, power 230V, (not with SIL-certification)
pressure compensation 0,6 - 1,1 bar abs.
PMA 50 EX/P/PD, power 115V, (not with SIL-certification)
pressure compensation 0,6 - 1,1 bar abs.
Power supply 230VAC (standard) or 115VAC (a) -15% to +10%, 40-60Hz, 35,5VA
Electrical connections via EEx e connection box 3x PG-cable gland
cable diameter : 6mm - 13mm (M20x1,5), 10mm - 17mm (M25x1,5)
terminals 2,5mm
2
,
(power, signals, range position and remote choice, status signal)
Measuring ranges selectable for 0-1, 0-3, 0-10, 0-30 and 0-100 vol.% O
2
linear
choice via rotary selection switch at PMA 50 or remote switching
External range indication Potential free contact for all measuring ranges.
Capacity 48V DC 200mA DC,
Minimum contact rating 5V/1mA
Remote range selection Measuring ranges selectable via potential free contacts max. 30V DC
3mA DC. The function is displayed at the PMA 50 via LED.
Combined analogue/digital indi-
cator analogue meter with a scale of 0-30 and 0-100% for each selected range
digital meter 4 1/2 digit 9 mm high LCD-indicator for 0-100% O
2
reading,
selectivity 0,01vol.% O
2
Output signals 0/4-20mA burden 270 Ω for every measuring range, electrically isolated;
output voltage max. 15V (ex works).
Switchable max. burden 800
Ω, output voltage max. 30V.
Output current limiting adjustable 20mA-22mA (20,5mA ex works)
0-10V DC, burden >100 K
Ω for range 0-100 % isolated.
Response time for 90% FSD < 5 seconds at 60 Nl/hr air
Accuracy after calibration

1% of the span value of measuring range after calibration or

0,02%O
2
depending on which value is the higher one
Reproducibility Analogue output = < 1% of measuring range / digital indication =
± 0,01 Vol.% O
2
Influence of ambient tempera-
ture No influence up to 50 °C
Influence of barometric pressure
The oxygen reading varies in direct proportion to changes of the bar-
ometric pressure.
No influence from 0,6-1,5 bar abs. at PMA 50 EEX/P/PD-1-50 with
process pressure compensation
Influence of sample gas flow
Variation in gas flow between 0-60 Nl/hr air will cause a difference of
< 0,2 vol.% O
2
Sample gas inlet pressure
0,01-0,1 bar g standard or in case of purging up to 0,5 bar g
(PMA 50 EEX required admission pressure for competent flow rate, no
pump inside)
Sample gas outlet pressure outlet of analyser must discharge freely into atmosphere
or 0,6-1,5 bar abs. at version PMA 50 EEX/P/PD-1-50 with process pres-
sure compensation
Flow rate of sample gas Min. 10 Nl/hr up to max. 60 Nl/hr adjustable externally via flow meter (no
flowmeter inside)
Temperature of sample gas -10 °C up to +50 °C dry gas
O2-transmitter temperature fixed at +55 °C