Zirconia Type Oxygen Analyzers (O2 Meters)
TF-III
Features
- Designed for operation under harsh combustion gas conditions, including high-temperature exhaust gas
- Direct furnace wall mounting eliminates the need for sampling piping or pretreatment equipment
- No standard gas or reference air required (Calibration can be performed using air-point calibration)
Usage
- TF-III
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- Heating furnaces, soaking furnaces, and hot blast furnaces (combustion monitoring and control)
- Boilers (combustion monitoring and control)
- TF-IIIG
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- Glass melting furnaces (combustion monitoring and control)
Specifications
| Model | TF-IIID102 (TF-III Transmitter + DTF-102 Receiver) |
TF-IIIGD102 (TF-IIIG Transmitter + DTF-102 Receiver) |
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|---|---|---|---|---|
| (For Boilers) | (For Steel Plants) | |||
| Measuring Principle | Zirconia type limiting current method | |||
| Sampling Method | Direct furnace wall mounting / ejector suction | |||
| Measuring Range | 0–5 / 0–10 / 0–25% O2 (System data change required for 0–5% range) | |||
| Accuracy | Repeatability | ±1% FS (0–5% range), ±0.5% FS (0–10 / 0–25% range) | ||
| Linearity | ±2% FS (0–5% range), ±1% FS (0–10 / 0–25% range) | |||
| Response Time | ≤10 seconds (90% response when switching calibration gas) | |||
| Output | DC 4–20 mA, isolated output, load resistance ≤550 Ω | |||
| Calibration | Air-point calibration (no standard gas required) | |||
| Contact Input |
Voltage-free contacts Number of contacts: 3 inputs Selectable functions: Calibration start / Purge start / Range switching / Output hold / Sleep mode |
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| Contact Output |
Voltage-free relay contacts (AC 250 V 1 A / DC 30 V 1 A, resistive load) Number of contacts: 4 outputs Selectable functions: Analyzer fault / H range / High concentration alarm / Low concentration alarm / Ready (normal measurement) / Under maintenance / Air cal. / Span cal. / Zero cal. / Purge / Air cal. or Purge / High-low concentration alarm / Analyzer fault or High-low concentration alarm |
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| Power Supply | AC 100 V ±10%, 50/60 Hz, 300 VA | |||
| Air Supply |
Instrument air equivalent Pressure: 0.4–0.7 MPa(G) During calibration: 1 L/min During purge: 10–20 L/min When using ejector air: 3–12 L/min |
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| Measured Gas Conditions* | Temperature | ≤700 °C | ≤1350 °C | ≤1350 °C |
| External Dimensions | Transmitter Body | 155 (W) × 200 (H) × 265 (D) (excluding protrusions) | 155 (W) × 200 (H) × 350 (D) (excluding protrusions) | |
| Receiver Unit |
400 (W) × 700 (H) × 260 (D) mm DTF-102 receiver, flowmeter, and solenoid valve integrated in unit panel |
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| Mounting Flange | JIS 5K 65AFF (Contact us for other sizes) | |||
| Weight | Transmitter body: approx. 5 kg; Probe (L = 1,000 mm): 2.2 kg | |||
* Please consult us for other gas conditions.
Resources
Instruction Manuals
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TF-III Transmitter
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DTF-102 Receiver
Product Inquiries
Please contact us via the link below for any questions about our Measuring Instrument Products.
