Catalogue EXPLOSION PROTECTED ZIRCONIA BASED HIGH TEMPERATURE OXYGEN ANALYSER - ATEX
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The probe mod. 4153 ia is based on a stabilized zirconium oxide cell which is warmed by the temperature of the process. Inside the probe is fitted a B type thermocouple (that does not need compensated cable). The signals of the thermocouple is used by the electronic unit to continuously compensate the output of the zirconia cell to the real temperature of the probe. The flue gas does not circulate inside the probe; it get in contact with the measuring cell on the tip of the probe by diffusion The probe is connected to the process normally by a 4" 150 RF ANSI flange or similar. The probe can be optionally equipped with a housing which contain the flame arresters, which completely divides the atmosphere inside and outside the industrial furnace.
The microprocessor based field transmitter mod. 8045 Pro Oxy is housed in an Ex enclosure with glass window for display reading. Inside the enclosure a double channel barrier is housed. Magnetic switches that can be operated without opening the housing by using a magnet through the glass window. They enable to manage all functions of the electronic unit.
The flow-meters box mod. 60 receives instrumentation air and gas from gas cylinder and drives reference airand test air and gas to the probe.
TECHNICAL SPECIFICATIONS
Measuring field:
0,0001-25% O2 by volume.
Precision:
±0,5% of the theoretical value or 0,1% O2 (which ever is the greater).
Stability:
within 1%.
Response time (T90):
zirconia cell < 1", the hole system < 15"
Storage temperature:
probe -40 °C/+80°C.
Working temperature:
probe 500 -r 1600°C for the temperature of the process. Room temp.< 150 °C for the head of the probe; industrial converter and barrier: -20 °C/ +50 °C.
Outputs:
analog 4-20 mA 500 ohm or 0 - 10 V 10 mA linear on one of the following
fields: 0-1999 ppm; 0-5%; 0-10%; 0-25% O2.
If the fault alarm is activated the analog output is forced to 2 mAor0 V.
Alarms
Potential free (SPST) contacts, O2 high and low, fault (fail safe) service and
calibration in progress.
For all contacts 250 V, 1 A max.
time constant adjustable between 0 and 900 sec.
Power supply:
115V and 230 V ±10%, 50-60 Hz, 50 V.A max. Safety according EN 61010
Protection:
Ex d IIC 2 GD c T6 IP 65
EMC
According E 50081 and EN 50082
Connecting cable:
4x1.5 shielded. Max length 100 mt.
Probe dimensions:
Immersion lengths = 650, 500, 310 mm; Diameter = 27 mm; With suitable extension tubes 1500 mm maximum immersion length can be reached.
Inox compression fittings for 6x4 tubing or W" NPT-F
Options:
Hart & Mod-bus protocols
FER STRUMENTI srl Italia - 20038 SEREGNO (MI) - Via Ripamonti, 58 tel. +39 0362 231203 - Fax +39 0362 330349
e-mail:ferstrumenti@fer-strumenti.com
FER STRUMENTI S.r.l. reserves the right, without any notice, to make any modifications needed for improving the product.
C-I00048 rev.O
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