Cubemass DCI
Endress+Hauser 9
Cable specifications Any suitable cable with a temperature specification of at least 20 °C (68 °F) higher than the ambient
temperature of the application. We recommend the use of a cable with a temperature specification of +80 °C
(+176 °F).
Remote version:
• 6 × 0.38 mm
2
(20 AWG) PVC cable with common shield and individually shielded cores
• Conductor resistance: ≤ 50 Ω/km (≤ 0.015 Ω/ft)
• Capacitance core/shield: ≤ 140 pF/m (≤ 42.7 pF/ft)
• Cable length: max. 20 m (65.6 ft)
• Permanent operating temperature: max. +105 °C (+221 °F)
!
Note!
The cable must be installed securely, to prevent movement.
MODBUS RS485 (cable type A):
• Characteristic impedance: 135 to 165 Ω at a measuring frequency of 3 to 20 MHz
• Cable capacity: < 30 pF/m (< 9.2 pF/ft)
• Core cross-section: > 0.34 mm
2
(AWG 22)
• Cable type: twisted pairs
• Loop-resistance: ≤ 110 Ω/km (≤ 0.034 Ω/ft)
• Signal damping: max. 9 dB along the entire length of the cable cross-section
• Shield: Copper braided shielding or braided shielding and foil shielding
Power consumption AC: < 15 VA (including sensor)
DC: < 15 W (including sensor)
Switch-on current
• max. 13.5 A (< 50 ms) at 24 V DC
• max. 3 A (< 5 ms) at 260 V AC
Power supply failure Lasting min. 1 power cycle:
• EEPROM or HistoROM T-DAT saves measuring system data if power supply fails.
• HistoROM/S-DAT: exchangeable data storage chip which stores the data of the sensor (nominal diameter,
serial number, calibration factor, zero point etc.)
Potential equalization No measures necessary.
For explosion-protected equipment → separate Ex-documentation supplied
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