Emerson daniel 1500 series, Руководство пользователя

Страница: 42 / 104

2.2 Specifications for the LTM
2.2.1 Interface parameters
WARNING!
EXCEEDING PARAMETER HAZARD
Turbine meter parameters are set for safe equipment use. Do not exceed these parameters.
Failure to comply may result in death, serious injury and/or damage to the equipment.
2818 Dual channel preamplifier performance Table 2-3:
Parameter type Description
Inputs Supply voltage: 10-30 VDC
Sensor type: Reluctance
Signal: Sine wave
Preamplifier sensitivity: 40 mV peak to peak minimum
Temperature range: -40 ºC to 85 ºC (-40 ºF to 185 ºF)
Outputs Powered pulse output:
• Type: Square wave
• Frequency range: 0 to 5 kHz
• Amplitude: 0 to 5 V
• 1000 Ohm internal pull-ups, 20 mA, max.
Variable voltage output:
• Type: Square wave
• Frequency range: 0 to 5 kHz
• Amplitude: 0 to Supply voltage
• 1000 Ohm internal pull-ups, 70 mA, max.
Construction Delrin housing
Solid epoxy encapsulation
2415 Intrinsically safe preamplifier performance Table 2-4:
Parameter type Description
Inputs Supply voltage: 13-25 Vdc @ ≤12 mA
Sensor type: Reluctance
Signal: Sine wave
Preamplifier sensitivity:
• 60 mVpp
• 10Hz - 1KHz (60mVpp)
• 10Hz - 3KHz (115mVpp)
• 10Hz - 5KHz (200mVpp)
Temperature range: -40 ºC to 85 ºC (-40 ºF to 185 ºF)
Operating conditions and specifications
32 Daniel Series 1500 Liquid Turbine Meter, NPS 3-24