Neptune TRICON E - Table 6 - T-8 Disc Meters

Meter
Size
(In)
Maximum
Flow Rate
(gpm)
Maximum
Continuous
Flow Rate
(gpm)
Minimum Flow
Rate (gpm)
Number of
Pulses per
Gallon*
Pulse Output @
Maximum Flow
Rate (Hz)*
Flow Range of 4-
20MA Output
(gpm)
⅝ 20 10 ¼ 473.60 157.87 0–24.41
1
¾ 30 15 ½ 329.14 164.57 0–29.40
1 50 25 ¾ 126.55 105.46 0–59.58
1
1½ 100 50 1½ 47.86 79.77 0–141.18
1
2 160 80 2 25.60 68.27 0–234.37
1
Table 6 – T-8 Disc Meters
Meter Size (In)
Maximum
Continuous
Flow Rate
(gpm)
Minimum
Flow Rate
(gpm)
Number of
Pulses per
Gallon*
Pulse Output @
Maximum Flow
Rate (Hz)*
Flow Range of
4-20MA
Output (gpm)
2 200 3 4.6080 15.36 0–200
3 450 5 2.8900 21.68 0–450
4 1,000 10 1.5900 26.50 0–1,000
6 2,000 20 0.4640 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 0.1600 14.67 0–5,500
10 (from S/N 31919300) 5,500 50 0.1472 13.49 0–5,981
*For the High Resolution Output of TRICON/E2 transmitters, multiply these values by 36, and for the
TRICON/E3, multiply by 40.
1
T-8 disc meters are no longer manufactured, so 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 a reference for calibrating the 4-20mA receiving instrument.
Table 7 – Trident
®
Turbine (TT) Meters
*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.
6 TRICON
®
E/E2/E3 Installation and Maintenance Guide
Chapter 2: Specifications