Daniel Series 1500 LTM Standard Preamplifiers are critical signal conditioning components designed for precision liquid turbine meter applications in oil & gas, industrial process and custody transfer flow measurement environments.
Installed within the local mounted enclosure (LME) of the Series 1500 liquid turbine meter, these turbine meter preamplifiers convert the low-voltage, high-impedance output from variable reluctance pickoff coils into robust, high-voltage, low-impedance signals suitable for transmission over long distances (up to 3,000 ft / 914 m).
The standard offering includes the Model 2818 dual-channel preamplifier with powered pulse, variable voltage and open collector outputs — ideal for integration with remote totalisers, transmitters and automation systems.
Complementary models such as zero crossing, intrinsically safe and bi-directional preamplifiers extend suitability across hazardous area and reverse-flow measurement scenarios, ensuring superior signal fidelity and repeatability for refined product pipelines, tank farms and fiscal metering installations.
Available Models Standard
- The Model 2818 Dual Channel Preamplifier is the standard Daniel offering for most liquid turbine meter applications. The signals from two inductive pickoff coils, positioned 90° electrically out of phase, are strengthened and conditioned by a single preamplifier. Fully potted in POM (Polyoxymethylene), the Model 2818 preamplifier has three possible outputs: powered pulse, variable voltage and open collector.
- The Model 2415 Intrinsically Safe Preamplifier is for hazardous area use (Zone 0).
- The Model 1815B Zero Crossing Preamplifier produces an output pulse with each zero crossing of the input signal. It ensures high resolution, producing twice the pulses from a single pickoff.
- The Model 1817X2 Bi-Directional Preamplifier is used on liquid turbine meters when the requirement is to accumulate flow in both forward and reverse directions.
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