Pulsafeeder Pulsar DLCM - Manual (Page 94)

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9. Specifications
9.1 Overview
The DLCM controller for Pulsar Pumps is an upgrade from the DLC stroke length controller, which
provides all of the same functions, but adds the capability of motor speed control using SCR control of
the armature voltage applied to a permanent magnet DC motor.
S TROKE L ENGTH C ONTROL : 0-100% control range. (Software programmable, 0% – 100% factory default)
0.1% resolution
10:1 turndown for accuracy specification.
Motor Speed Control: 5-100% control range. (Software programmable, 10% – 100% factory default)
0.1% resolution
20:1 turndown for accuracy specification.
Combined Calibrated Flow: 50:1 total turndown for accuracy specification.
6 significant digits for displayed units of flow.
Pump Accuracy:
Turndown Range Accuracy Standard
Diaphragm
Diaphragm
With Leak
Detection
Single Solid
Teflon
Diaphragm
Capacity
Reference
Stroke
Length
Motor
Speed
Combined
Turndown
Steady State ±0.5% ±0.5% ±0.5% Set Point 10:1 20:1 50:1
Repeatability ±0.5% ±1.0% ±1.0% Full Rating 10:1 20:1 50:1
Linearity ±1.0% ±3.0% ±3.0% Full Rating 10:1 20:1 50:1
Adjustment Response: 1% per second on stroke length.
1% per second on steady state speed.
Temperature: –18 °C to 40°C (0°F to 104°F) Operation.
–18 °C to 60°C (0°F to 140°F) Storage.
Low Voltage Inputs
Inputs Field Wiring
Location
Specification / Description
Analog Input Channel 1 J4 Pin 1 is +
J4 Pin 2 is – Any signal within the range of 0 to 25mA (e.g.: 4-20)
or 0 to 5 volts (e.g.: 1-5)
Minimum span of 2mA or 0.4 volts.
Note: No jumpers used. Displayed in mA.
Split Ranging, Reverse Acting and Ratio Control
standard on all units; accessible via calibration.
Fused at 50mA. Protected against mis-wiring.
Surge Protection: 7.4 Joules
Isolation: 500 volts from all other inputs, outputs, and ground.
Analog Input Channel 2 J4 Pin 7 is +
J4 Pin 8 is – Specifications same as Channel 1.