84 Installation Guide
Maximum switching (breaking) power
(AC1 [resistive])
1500 VA, 250 V AC
Contact resistance 100 mΩ (at 1 A/6 V DC)
Rated insulation voltage 250 V AC
Rated impulse
withstand
voltage U
imp
between coil and
contacts
4 kV 1 min
between open contacts 1 kV 1 min
Environmental specifications
Operating ambient temperature –50 °C to 55 °C (–58 °F to 131 °F)
Operating ambient humidity 5% to 95% RH, non-condensing
Shipping/storage temperature –40 °C to 70 °C (–40 °F to 158 °F)
Pollution degree 4 (outdoor use), 2 (internal)
Operating altitude –610 m to 2000 m (–2001 ft to 6562 ft)
Oil temperature at valve –20 °C to 120 °C (–4 °F to 248 °F)
Oil pressure at valve 0 to 1000 kPa/0 to 10 bar/0 to 145 psi
Mechanical specifications
Sensor head
Dimensions (L × W ×H) 392 × 264 × 158 mm (15.43 × 10.39 × 6.22 in)
Weight 8.0 kg (17.6 lb)
Interface to transformer 1.5 NPT, male thread
Enclosure IP67/NEMA 4X/C4
Analytical unit
Dimensions (with mount) (L × W ×H) 685 × 863 × 292 mm (26.76 × 33.97 × 11.49 in)
Weight 64.9 kg (143.3 lb)
Enclosure IP66/NEMA 4X
Measurement specifications
Hydrogen (H₂)
Range (ppm) 25 to 5,000
Accuracy (ppm) ±25 (or ±20%, whichever is higher)
Repeatability H₂ (ppm) ±15 (or ±10%, whichever is higher)
Response time T90 typical 30 minutes, T90 max 60 minutes
Moisture (H₂O)
Measurement range (aw) 0 to 1 (0 to 100% RH)
Measurement accuracy (aw) ±0.02 (±2% RH)
Range (ppm) 0 to 60 @ 25 °C (77 °F) or 0 to 180 @ 55 °C (131 °F) ±3%
Temperature measurement accuracy ±0.2 °C (±0.4 °F)
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