Environmental Monitoring Instruments
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| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Instrument Type | Laboratory Benchtop CEMS |
| Detection Principle | Selective Catalytic Oxidation + Flame Ionization Detection (FID) |
| Measurement Targets | CH₄, NMHC, THC |
| Detection Range | 0–50 / 200 / 500 / 1000 / 2000 ppm (selectable full-scale ranges) |
| Response Time | <150 s at sample inlet |
| Configuration | Integrated VOC Analyzer for Stack/Flue Gas Applications |
| Compliance Context | Designed for regulatory-grade monitoring per EPA Method 25A, ISO 12039, and EN 12619 requirements |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | APMA-370 |
| Instrument Type | Portable Gas Analyzer |
| Detection Target | Single-component (CO) |
| Measurement Range | 0–5 / 0–10 / 0–20 / 0–50 ppm (selectable) |
| Repeatability | ±1.0% F.S. |
| Response Time (T90) | ≤60 s (at lowest range) |
| Zero Drift | ±0.1 ppm/day or ±1.0% F.S./day (whichever is greater) |
| Span Drift | ±2.0% F.S./day or ±3.0% F.S./week |
| Linearity Error | ±1.0% F.S. |
| Detection Limit | 0.05 ppm (2σ, for ranges ≤10 ppm) |
| Sample Flow Rate | ~1.5 L/min |
| Operating Temperature | 5–40 °C |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Dimensions | 430 × 550 × 221 mm (W×D×H) |
| Weight | ~16 kg |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | APNA-370(G) |
| Instrument Type | Online Continuous Emission Monitor |
| Measured Gases | Nitric Oxide (NO), Nitrogen Dioxide (NO₂), Total Nitrogen Oxides (NOₓ) |
| Response Time (T90) | ≤120 s |
| Detection Limit | 0.5 ppb (2σ, ≤0.2 ppm range) / 1.0% F.S. (2σ, >0.2 ppm range) |
| Measurement Range | 0–10 ppm (4 selectable sub-ranges, max span ratio 10:1) |
| Accuracy | ±1.0% F.S. (linearity & repeatability) |
| Zero Drift | ±1.0 ppb/day or ±1.0% F.S./day (whichever greater) |
| Span Drift | ±1.0% F.S./day |
| Sample Flow Rate | ~0.8 L/min |
| Operating Temperature | 5–40 °C |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Dimensions | 430 × 550 × 221 mm (W×D×H) |
| Weight | ~21 kg |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | APNA-370 |
| Measurement Principle | Dual-Flow Modulated Chemiluminescence Detection (CLD) |
| Range Options | 0–0.1 / 0.2 / 0.5 / 1.0 ppm (standard) |
| LOD | 0.5 ppb (2σ, ≤0.2 ppm range) or 1.0% F.S. (2σ, >0.2 ppm range) |
| Repeatability | ±1.0% F.S. |
| Linearity | ±1.0% F.S. |
| Zero Drift | ±1.0 ppb/day or ±1.0% F.S./day (whichever greater) |
| Span Drift | ±1.0% F.S./day |
| Response Time (T₉₀) | ≤120 s (at minimum range) |
| Sample Flow Rate | ~0.8 L/min |
| Operating Temperature | 5–40 °C |
| Power Supply | 100–240 VAC, 50/60 Hz (configurable) |
| Dimensions | 430 W × 550 D × 221 H mm |
| Weight | ~21 kg |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | APOA-370 |
| Measurement Principle | Non-Dispersive Ultraviolet (NDUV) Absorption |
| Range | 0–0.1 / 0.2 / 0.5 / 1.0 ppm (standard) |
| Detection Limit | 0.5 ppb (2σ, ≤0.2 ppm range) or 0.5% F.S. (2σ, >0.2 ppm range) |
| Repeatability | ±1.0% F.S. |
| Linearity | ±1.0% F.S. |
| Zero Drift | ±1.0% F.S./day, ±2.0% F.S./week |
| Span Drift | ±1.0% F.S./day, ±2.0% F.S./week |
| Response Time (T90) | ≤120 s |
| Sample Flow Rate | ~0.7 L/min |
| Operating Temperature | 5–40 °C |
| Power Supply | 100–240 VAC, 50/60 Hz (configurable) |
| Dimensions | 430 × 550 × 221 mm (W×D×H) |
| Weight | ~20 kg |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | APOA-370 |
| Instrument Type | Fixed-Position |
| Measurement Range | 0–10 ppm |
| Detection Limit | 0.5 ppb |
| Response Time (T90) | ≤120 s |
| Zero Drift | ±1% F.S./day |
| Resolution | 0.1 ppb |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | APSA-370 |
| Detection Principle | Ultraviolet Fluorescence (UVF) |
| Measurement Range | 0–100 ppb to 0–10 ppm (field-selectable) |
| Detection Limit | <50 ppt (3σ, 1-minute average) |
| Accuracy | ±1% of full scale |
| Response Time (T90) | <60 seconds |
| Sample Flow Rate | 0.5–1.0 L/min |
| Operating Temperature | 0–40 °C |
| Humidity Tolerance | 0–90% RH (non-condensing) |
| Power Supply | 100–240 VAC, 50/60 Hz |
| Compliance | EPA EQOA-01, ISO 7935:1990, JIS K 0301 |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | APSA-370 |
| Measurement Principle | Ultraviolet Fluorescence (UVF) |
| Range | 0–0.05 / 0.1 / 0.2 / 0.5 ppm (standard) |
| LOD | 0.5 ppb (2σ, for ranges ≤0.2 ppm) or 0.5% F.S. (2σ, for ranges >0.2 ppm) |
| Repeatability | ±1.0% F.S. |
| Linearity | ±1.0% F.S. |
| Zero Drift | ±1.0% F.S./day (lowest range), ±2.0% F.S./week (lowest range) |
| Span Drift | ±1.0% F.S./day (lowest range), ±2.0% F.S./week (lowest range) |
| Response Time (T₉₀) | ≤180 s |
| Sample Flow Rate | ~0.7 L/min |
| Output Signals | 0–1 V / 0–10 V / 4–20 mA (configurable) |
| Operating Temperature | 5–40 °C |
| Power Supply | 100–240 VAC, 50/60 Hz (user-specified) |
| Dimensions | 430 × 550 × 221 mm (W×D×H) |
| Weight | ~19 kg |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-173 |
| Instrument Type | Portable/HANDHELD Water Quality Analyzer |
| Conductivity Range | 0–199 µS/cm, 0.2–1.99 mS/cm, 2–19.9 mS/cm |
| Resolution | 1 µS/cm, 0.01 mS/cm, 0.1 mS/cm |
| Accuracy | ±2% of reading |
| Salinity Range | 0–1.1% (w/w) |
| Temperature Compensation | Automatic, 5–35 °C with 2%/°C coefficient |
| Power Supply | Two 3V CR2032 batteries (approx. 500 hours lifespan) |
| Dimensions | 15 × 2 × 2 cm (L × W × H) |
| Included | Calibration standard solution (1410 µS/cm KCl) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-712 |
| Measurement Principle | Glass Electrode Method |
| pH Range | 2.0–12.0 |
| Accuracy | ±0.1 pH (after calibration, using standard buffer solutions) |
| Calibration | 1-point or 2-point automatic calibration |
| Minimum Sample Volume | 0.05 mL (with optional sampling film B) or ≥0.1 mL |
| Temperature Compensation | Automatic (ATC) |
| Auto-Hold Function | Yes |
| Ingress Protection | IP67 (1 m submersion for 30 min |
| Operating Environment | 5–40 °C, ≤85% RH (non-condensing) |
| Power Supply | Two CR2032 lithium batteries |
| Dimensions (L×W×H) | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | Approx. 50 g (instrument only, excl. batteries) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-722 |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measurement Range | 23–2300 ppm (mg/L) [1.0 × 10⁻³ – 1.0 × 10⁻¹ mol/L] |
| Minimum Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| Calibration | Two-Point Calibration |
| Accuracy | ±10% of reading |
| Temperature Compensation | Automatic (2%/°C fixed coefficient) |
| Auto-Hold Function | Yes |
| Ingress Protection | IP67 |
| Operating Environment | 5–40 °C, <85% RH (non-condensing) |
| Power Supply | Two CR2032 batteries |
| Dimensions (L×W×H) | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | Approx. 50 g (instrument only, batteries excluded) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-722 |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measurement Range | 23–2300 ppm (mg/L) [1.0 × 10⁻³ – 1.0 × 10⁻¹ mol/L] |
| Minimum Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| Calibration | Two-Point Calibration |
| Accuracy | ±10% of reading |
| Temperature Compensation | Automatic (fixed coefficient: 2%/°C) |
| Auto-Hold Function | Yes |
| Ingress Protection Rating | IP67 |
| Operating Environment | 5–40 °C, <85% RH (non-condensing) |
| Power Supply | Two CR2032 batteries |
| Dimensions (L×W×H) | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | Approx. 50 g (instrument only, batteries excluded) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-722 |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measurement Range | 23–2300 ppm (mg/L) [10⁻³–10⁻¹ mol/L] |
| Accuracy | ±10% of reading |
| Calibration | Two-point calibration |
| Temperature Compensation | Automatic (2%/°C fixed coefficient) |
| Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| IP Rating | IP67 |
| Operating Environment | 5–40 °C, RH <85% (non-condensing) |
| Power Supply | Two CR2032 batteries |
| Dimensions | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | Approx. 50 g (instrument only) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-722 |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measuring Range | 23–2300 ppm (mg/L) / 1.0 × 10⁻³ – 1.0 × 10⁻¹ mol/L |
| Minimum Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| Calibration | Two-Point Calibration |
| Accuracy | ±10% of reading |
| Temperature Compensation | Automatic (2%/°C fixed coefficient) |
| Auto-Hold Function | Yes |
| Ingress Protection Rating | IP67 |
| Operating Environment | 5–40 °C, RH <85% (non-condensing) |
| Power Supply | Two CR2032 batteries |
| Dimensions (L×W×H) | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | Approx. 50 g (instrument only, excl. batteries) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-722 |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measurement Range | 23–2300 ppm (mg/L) [1.0 × 10⁻³ – 1.0 × 10⁻¹ mol/L] |
| Minimum Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| Calibration | Two-Point Calibration |
| Accuracy | ±10% of reading |
| Temperature Compensation | Automatic (fixed coefficient: 2%/°C) |
| Auto-Hold Function | Yes |
| Ingress Protection Rating | IP67 |
| Operating Environment | 5–40 °C, <85% RH (non-condensing) |
| Power Supply | Two CR2032 batteries |
| Dimensions (L×W×H) | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | Approx. 50 g (instrument only, excl. batteries) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-722 |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measurement Range | 23–2300 ppm (mg/L) / 1.0 × 10⁻³ – 1.0 × 10⁻¹ mol/L Na⁺ |
| Minimum Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| Calibration | Two-Point Calibration |
| Accuracy | ±10% of reading |
| Temperature Compensation | Automatic (fixed coefficient: 2%/°C) |
| Auto-Hold Function | Yes |
| Ingress Protection | IP67 |
| Operating Environment | 5–40 °C, RH <85% (non-condensing) |
| Power Supply | Two CR2032 batteries |
| Dimensions (L×W×H) | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | Approx. 50 g (instrument only, batteries excluded) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-722 |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measurement Range | 23–2300 ppm (mg/L) [1.0 × 10⁻³ – 1.0 × 10⁻¹ mol/L] |
| Minimum Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| Calibration | Two-Point Calibration |
| Accuracy | ±10% of reading |
| Temperature Compensation | Automatic (2%/°C fixed coefficient) |
| Auto-Hold Function | Yes |
| Ingress Protection Rating | IP67 |
| Operating Environment | 5–40 °C, <85% RH (non-condensing) |
| Power Supply | Two CR2032 batteries |
| Dimensions (L×W×H) | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | Approx. 50 g (instrument only, batteries excluded) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-731 |
| Measurement Principle | Solid-State Ion-Selective Electrode (ISE) Method |
| Measuring Range | 39–3900 ppm (mg/L) [10⁻³–10⁻¹ mol/L] |
| Accuracy | ±10% of reading |
| Calibration | Two-point calibration |
| Temperature Compensation | Automatic (NTC sensor) |
| IP Rating | IP67 |
| Operating Environment | 5–40 °C, <85% RH (non-condensing) |
| Power Supply | Two CR2032 batteries |
| Dimensions | 164 × 29 × 20 mm (excl. probe protrusion) |
| Weight | ~50 g (instrument only) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-731 |
| Measurement Principle | Solid-State Ion-Selective Electrode (ISE) Method |
| Measuring Range | 39–3900 ppm K⁺ (10⁻³–10⁻¹ mol/L) |
| Minimum Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| Calibration | Two-Point Calibration |
| Accuracy | ±10% of reading |
| Temperature Compensation | Automatic (NTC thermistor, 2%/°C fixed coefficient) |
| Protection Rating | IP67 |
| Operating Environment | 5–40 °C, ≤85% RH (non-condensing) |
| Power Supply | Two CR2032 lithium batteries |
| Dimensions | 164 × 29 × 20 mm (excl. probe protrusion) |
| Weight | Approx. 50 g (instrument only, excluding batteries) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-731 |
| Measurement Principle | Solid-State Ion-Selective Electrode (ISE) Method |
| Measuring Range | 39–3900 ppm (mg/L) [10⁻³–10⁻¹ mol/L] |
| Accuracy | ±10% of reading |
| Minimum Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| Temperature Compensation | Automatic (NTC thermistor) |
| Environmental Rating | IP67 |
| Operating Temperature | 5–40 °C |
| Relative Humidity | <85% RH (non-condensing) |
| Power Supply | Two CR2032 batteries |
| Dimensions | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | ~50 g (instrument only) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-731 |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measuring Range | 39–3900 ppm (mg/L) [10⁻³–10⁻¹ mol/L] |
| Minimum Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| Calibration | Two-Point Calibration |
| Accuracy | ±10% of reading |
| Temperature Compensation | Yes |
| Auto-Hold | Yes |
| Ingress Protection | IP67 |
| Operating Environment | 5–40 °C, RH <85% (non-condensing) |
| Power Supply | Two CR2032 batteries |
| Dimensions (L×W×H) | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | ~50 g (instrument only) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-731 |
| Measurement Principle | Solid-State Ion-Selective Electrode (ISE) Method |
| Measurement Range | 39–3900 ppm K⁺ (10⁻³–10⁻¹ mol/L) |
| Minimum Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| Calibration | Two-Point Calibration |
| Accuracy | ±10% of reading |
| Temperature Compensation | Automatic (NTC sensor, 2%/°C fixed coefficient) |
| Environmental Rating | IP67 |
| Operating Temperature | 5–40 °C |
| Relative Humidity | <85% RH (non-condensing) |
| Power Supply | Two CR2032 lithium batteries |
| Dimensions | 164 × 29 × 20 mm (excluding protrusions) |
| Weight | ~50 g (instrument only, excluding batteries) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-731 |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measuring Range | 39–3900 ppm (mg/L) or 1.0 × 10⁻³ – 1.0 × 10⁻¹ mol/L K⁺ |
| Minimum Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| Calibration | Two-point calibration |
| Accuracy | ±10% of reading |
| Temperature Compensation | Automatic (NTC thermistor) |
| IP Rating | IP67 |
| Operating Environment | 5–40 °C, RH <85% (non-condensing) |
| Power Supply | Two CR2032 batteries |
| Dimensions (L×W×H) | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | Approx. 50 g (instrument only) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-741 / B-742 / B-743 |
| Ion Measured | Nitrate (NO₃⁻) |
| Measurement Principle | Solid-state ion-selective electrode (ISE) method |
| Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| NO₃⁻ Range | 62–6200 ppm (mg/L), equivalent to 10⁻³–10⁻¹ mol/L |
| NO₃⁻-N Range | 14–1400 ppm (mg/L) |
| Accuracy | ±10% of reading |
| Temperature Compensation | Automatic, 2%/°C fixed coefficient |
| IP Rating | IP67 |
| Operating Environment | 5–40°C, <85% RH (non-condensing) |
| Power | Two CR2032 batteries |
| Dimensions | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | ~50 g (instrument only) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-743 |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measuring Range | NO₃⁻: 62–6200 ppm (mg/L) [1.0 × 10⁻³ – 1.0 × 10⁻¹ mol/L] |
| NO₃⁻-N | 14–1400 ppm (mg/L) |
| Minimum Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| Calibration | Two-point calibration |
| Accuracy | ±10% of reading |
| Temperature Compensation | Automatic, with coefficient fixed at 2%/°C |
| Environmental Rating | IP67 |
| Operating Temperature | 5–40 °C |
| Power Supply | Two CR2032 batteries |
| Dimensions | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | ~50 g (instrument only) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-743 Nitrate Ion Meter |
| Instrument Type | Portable Ion-Selective Electrode (ISE) Meter |
| Measurement Principle | Potentiometric Detection via Nitrate-Selective Electrode |
| Measuring Range | NO₃⁻: 62–6200 ppm (mg/L) [1.0 × 10⁻³ – 1.0 × 10⁻¹ mol/L] |
| NO₃⁻–N | 14–1400 ppm (mg/L) |
| Detection Limit | Same as measuring range (defined by electrode Nernstian response and signal-to-noise threshold) |
| Response Time | ≤30 s (t₉₀) |
| Accuracy | ±10% of reading |
| Temperature Compensation | Automatic (5–40 °C) |
| Environmental Operating Conditions | 5–40 °C, <85% RH (non-condensing) |
| Ingress Protection | IP67 |
| Power Supply | Two CR2032 lithium coin cells |
| Dimensions (L×W×H) | 164 × 29 × 20 mm (excl. probe protrusion) |
| Weight | ~50 g (instrument body only) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-743 Portable Nitrate Ion Meter |
| Measurement Principle | Solid-State Ion-Selective Electrode (ISE) Method |
| Measuring Range | NO₃⁻: 62–6,200 ppm (mg/L) [1.0 × 10⁻³ – 1.0 × 10⁻¹ mol/L] |
| NO₃⁻–N | 14–1,400 ppm (mg/L) |
| Accuracy | ±10% of reading |
| Calibration | Two-point calibration with standard solutions |
| Temperature Compensation | Automatic (NTC sensor, 2%/°C fixed coefficient) |
| Sample Volume | ≥0.05 mL (dual measurement mode) or ≥0.3 mL (single measurement) |
| Environmental Rating | IP67 |
| Operating Temperature/Humidity | 5–40 °C, RH <85% non-condensing |
| Power Supply | Two CR2032 lithium coin cells |
| Dimensions/Weight | 164 × 29 × 20 mm (L×W×H), approx. 50 g (instrument only) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-743 Nitrate Pen-Type Ion Meter |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measurement Range (NO₃⁻) | 62–6,200 ppm (mg/L) [10⁻³–10⁻¹ mol/L] |
| Measurement Range (NO₃⁻–N) | 14–1,400 ppm (mg/L) |
| Minimum Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| Calibration | Two-Point Calibration |
| Accuracy | ±10% of reading |
| Temperature Compensation | Automatic (fixed 2%/°C coefficient) |
| Auto-Hold Function | Yes |
| Ingress Protection Rating | IP67 |
| Operating Environment | 5–40 °C, RH <85% (non-condensing) |
| Power Supply | Two CR2032 batteries |
| Dimensions (L×W×H) | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | Approx. 50 g (instrument only, excl. batteries) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-743 |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measuring Range | NO₃⁻: 62–6,200 ppm (mg/L) [1.0 × 10⁻³ – 1.0 × 10⁻¹ mol/L] |
| NO₃⁻–N | 14–1,400 ppm (mg/L) |
| Minimum Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| Calibration | Two-point calibration |
| Accuracy | ±10% of reading |
| Temperature Compensation | Automatic (2%/°C fixed coefficient) |
| Auto-Hold Function | Yes |
| Ingress Protection | IP67 |
| Operating Environment | 5–40 °C, RH <85% (non-condensing) |
| Power Supply | Two CR2032 batteries |
| Dimensions (L×W×H) | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | Approx. 50 g (instrument only, excl. batteries) |
| Brand | HORIBA |
|---|---|
| Origin | Japan |
| Model | B-743 |
| Measurement Principle | Ion-Selective Electrode (ISE) Method |
| Measuring Range | NO₃⁻: 62–6,200 ppm (mg/L) [1.0 × 10⁻³ – 1.0 × 10⁻¹ mol/L] |
| NO₃⁻–N | 14–1,400 ppm (mg/L) |
| Accuracy | ±10% of reading |
| Calibration | Two-point calibration |
| Temperature Compensation | Automatic (2%/°C fixed coefficient) |
| Sample Volume | 0.05 mL × 2 or ≥0.3 mL |
| IP Rating | IP67 |
| Operating Environment | 5–40 °C, RH <85% (non-condensing) |
| Power | Two CR2032 batteries |
| Dimensions | 164 × 29 × 20 mm (excl. protrusions) |
| Weight | ~50 g (instrument only) |