DANIEL 1500 Series User Manual page 38

SERIES 1500 LIQUID TURBINE METER
User manual
P/N 3-9008-507
Table 2-8: 2415 Intrinsically safe preamplifier configuration
Designator
Customer connection
Pickoff (1)
Table 2-9: 1815B Zero crossing preamplifier configuration
Designator
Customer connection
Pickoff (1)
Table 2-10: 1817X Bi-directional preamplifier configuration
Designator
Customer connection
Pickoff (2)
Pickoff coils
The Series 1500 LTM has the capacity for dual pickoff coils mounted 90º electrically out of
phase. Each pickoff produces a low level sine wave signal which varies in amplitude (mV)
and frequency (Hz) proportional to the velocity of the turbine blades. This signal
information is coupled to the input terminals of the preamplifier.
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Operating conditions and specifications
Terminal connections Description
1 Supply voltage
2 Common
3 Output signal (half frequency)
4 Output signal
5 White
6 Red
Terminal connections Description
1 Supply voltage
2 Common
3 Output signal (x1)
4 Output signal (x2)
5 White
6 Red
Terminal connections Description
1 Supply voltage
2 Common
3 Direction Forward (A before B): OVDC, OC
Reverse (B before A): Vs, OC
4 Channel A output
5 Channel B output
6 Optional (X2)
7 White
8 Red
9 White
10 Red
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