Cameron NUFLO MC-III - Page 8

8
Section 1 MC-III™ Panel Mount Flow Analyzer
Table 1.1—MC-III Panel Mount Specications
System Power Internal power supply
• 3.6 VDC, D-size lithium battery (2-year typical life)
External power supply (6 to 30 VDC at 6 mA) with internal battery backup
(reverse polarity protected)
Loop-powered (4-20 mA) with internal battery backup
(reverse polarity protected)
Loop power: 8 to 30 VDC
Load resistance: 1100 ohms @ 30 VDC
200 ohms @ 12 VDC
Operating Temperature Lithium-Powered: -40°C to 70°C (-40°F to 158°F)
LCD contrast is reduced below -20°C (-4°F)
Environmental Humidity: 0 to 90% non-condensing
Altitude: Up to 2000 m, maximum
LCD Display 8-digit Total (volume) display (7-segment characters)
6-digit Rate display (11-segment characters for easy-to-read prompts)
0.3” character height
Adjustable contrast and update period
User-selectable units of measurement (Total):
• Preprogrammed units: BBL, GAL, LIT, M
3
, CF, SCF, any unit x 1000
• User-dened units
User-selectable units of measurement (Rate):
• Preprogrammed units: BBL, GAL, LIT, M
3
, CF, SCF (per DAY, HR,
MIN, SEC), any unit x 1000 (per DAY, HR, MIN, SEC)
• User-dened units
Keypad 6-key membrane switch
Communications/
Archive Retrieval
RS-485 Modbus
®
communications with transfer speeds up to 115.2K (allows
full download in less than 1 minute)
Logging 384 daily logs
768 hourly logs
345 event logs
Inputs Turbine Meter Input
Congurable sensitivity adjustment via front panel
Sensitivity adjustment range: 20 mV P-P to 40 mV P-P
Frequency range: 0 to 3500 Hz
Remote Reset Input
Optically-isolated input
3.0 to 30 VDC
Pulse duration > 3 seconds to reset
Pulse Input
Optically-isolated input
3.0 to 30 VDC