Neptune TRICON E, Installation And Maintenance Manual

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3-4 TRICON/E/E2/E3 Transmitter Installation and Maintenance Guide
Meter Size Maximum Maximum Minimum Number of Pulse Output Flow Range
(in) Flow Rate Continuous Flow Rate Pulses per @ Maximum of 4-20mA
(gpm) Flow Rate (gpm) (gpm) Gallon
1
Flow Rate (Hz)
1
Output (gpm)
5/8 20 10 1/4 473.60 157.87 0–24.41
2
3/4 30 15 1/2 329.14 164.57 0–29.40
1 50 25 3/4 126.55 105.46 0–59.58
2
1 1 /
2
100 50 1 1 /
2
47.86 79.77 0–141.18
2
2 160 80 2 25.60 68.27 0–234.37
2
1 For the High-Resolution Output of TRICON/E2 transmitter, multiply these values by 36 , and for the TRICON/E3, multiply by 40 .
2 T-8 disc meters are no longer manufactured. Therefore, all TRICON/E transmitters manufactured for disc meters are the T-10
type. In most cases, the newer T-10 meter chamber is smaller than its corresponding T-8 meter chamber, which results in the
TRICON/E having a theoretical “Flow Rate at 20mA Output” that is greater than the Maximum Flow Rate allowed for the meter.
This means that the T- 10 type TRICON/E running on a T-8 meter will never actually reach the 20mA output level during normal
operation. The calculated flow rate required to produce a 20mA output is provided as a reference for use in calibrating the 4-
20mA receiving instrument.
1 For the High-Resolution Output of the TRICON/E2 transmitters, multiply these values by 9 and for the TRICON/E3, multiply
these values by 10 .
Table 3.6 T-8 Disc Meters
Meter Size Maximum Minimum Number of Pulse Output Flow Range
(in) Continuous Flow Rate Pulses per @ Maximum of 4-20mA
Flow Rate (gpm) (gpm) Gallon
1
Flow Rate (Hz)
1
Output (gpm)
2 200 3 4.608 15.36 0 – 200
3 450 5 2.89 21.68 0 – 450
4 1,000 10 1.59 26.50 0 – 1,000
6 2,000 20 0.464 15.47 0 – 2,000
8
(through S/N 31918014)
3,500 35 0.2493 14.54 0 – 3,500
8
(from S/N 31918274)
3,500 35 0.2253 13.14 0 – 3,873
10
(through S/N 31919282)
5,500 50 0.16 14.67 0 – 5,500
10
(from S/N 31919300)
5,500 50 0.1472 13.49 0 – 5,981
Table 3. 7 Trident Turbine (TT) Meters