Contrec 104D Flow Rate Totalizer

The Contrec 104D Flow Rate Totalizer bridges the gap between a pulse-output flowmeter and a 4-20mA control system, taking the pulse or frequency signal from a turbine, positive displacement, or paddlewheel meter and converting it into a loop-powered display with its own 4-20mA retransmit output. That makes it a practical way to bring a pulse-output meter into a plant that standardizes on analog signaling, without adding a separate converter and power supply.

A 10-point calibration curve linearizes the input across the full flow range, and both rate and running total stay visible simultaneously on the dual LCD display. Two open-collector alarm outputs handle high and low flow signaling independently, a pulse output is available for feeding a remote counter, and the same IP67 watertight enclosure and non-volatile memory used across the 100-series keep the unit reliable in the field and its settings safe through a power interruption.

Compatible MetersTurbine, positive displacement, and paddlewheel flowmeters (pulse/frequency output)
Frequency Range0.01Hz to 10kHz
Signal TypesSine wave (15mV min.), open collector, reed switch, or pulse
K-Factor Range0.000001 to 999,999 pulses per unit, programmable
Linearization10-point calibration curve
Rate Display5-digit, 8.5mm (0.33in) LCD
Total Display7-digit, 10mm (0.4in) LCD
Power Supply4-20mA, 2-wire loop-powered; 2.5V max. voltage drop
Backup Power2 internal lithium batteries, approx. 2-year life
Retransmit Output4-20mA analog, 0.05% accuracy
Additional OutputsPulse output; 2 x open-collector alarm outputs (high/low), 200mA/30V DC max.
Resolution/Linearity0.05% of span
Accuracy0.05% @25°C; 0.1% over full temperature range
Update Time0.5 second
Enclosure ProtectionIP67 (NEMA 4X) watertight
Enclosure MaterialPolycarbonate and ABS
Dimensions151mm (W) x 98mm (H) x 43mm (D)
Operating Temperature-20 to +60°C (-4 to +140°F)
Mounting VariantsWall mount (standard), .1 panel mount bracket, .6 pipe mount adapter

Download Contrec 104D Flow Rate Totalizer information here

Datasheet: Contrec_104D_Rate_Totaliser

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