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Model
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NC-1732
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Inputs
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- One or two zirconia oxygen probes or sensors
- One zirconia sensor & auxiliary thermocouple type J, K, R or S
- Burner “On” signal (dry contact)
- Purge air flow switch
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Outputs
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- Four programmable alarm relays
- Two isolated 4-20mA or 0-20mA
- SSR outputs to purge & calibration check gas solenoid valves
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Range of Outputs
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- Linear oxygen sensor 1
- Linear oxygen sensor 2
- Average oxygen
- Very low oxygen
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- Logarithmic oxygen
- Reducing oxygen
- Oxygen deficiency
- Carbon dioxide
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- Probe EMF
- Auxiliary temperature
- Combustibles
- Burner Efficiency
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Alarms
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Common alarm relay with 20 user selectable instrument alarm functions. Three programmable process alarm relays for very low oxygen, low oxygen, high oxygen, oxygen deviation, probe temperature low, cal check in progress, purge in progress, plus any alarms that were not selected for the common alarm. Multiple selections can be made for all relays.
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Alarm Contacts
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- Normally open failsafe (open for alarm state)
- 2A / 240VAC, 2A / 30VDC
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Range of Logical Indication
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- 1.0 x 10-30% to 100% O2
- 0.01ppm to 10,000ppm – automatically defaults to exponential format below 0.01ppm and percent format above 10,000ppm (1%)
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Serial / Network Interface
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RS232, RS485 MODBUS™
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Sekundäre Anzeigeparameter
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Einige oder alle der folgenden Punkte können für die untere Displayanzeige ausgewählt werden:
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- Probe #1 temperature
- Probe #2 temperature
- Probe #1 EMF
- Probe #2 EMF
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- Probe #1 impedance
- Probe #2 impedance
- Oxygen % probe #2
- Average oxygen %
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- Auxiliary temperature
- Ambient temperature
- Ambient RH %
- Carbon dioxide
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- Brennstoffe
- Sauerstoffmangel
- Brennereffizienz
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Accuracy
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± 1% of the actual O2 reading with a repeatability of 0.5%. For example, at 2% O2 the accuracy would be ±0.02% O2.
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Operating Temp. & Humidity
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-25°C to +55°C, 5% to 95% RH (non-condensing)
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Power Requirements
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85VAC to 265VAC 50 / 60 hz, 5W
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Degree of Protection
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IP65, IP54 with internal reference air pump
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Dimensions & Weight
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Approx. 260 x 160 x 90 mm, 3 kg |