The DLT 2.0 Differential Level Transmitter is a simple solution for differential level measurement including applications found in wastewater treatment plants, pump stations, and combined sewer systems. The Differential Level Transmitter includes two differential level sensors. Position each sensor at your desired location, above a channel, up and downstream from a bar screen for example, and the DLT 2.0 can display and transmit differential level measurement. The downstream sensor could even be positioned above a flume or weir to measure and totalize open channel flow.
To make the most out of your DLT 2.0, install one sensor on each side of a mechanical bar screen to continuously monitor level. Using the built-in relays or 4-20mA outputs to automatically activate the bar screen rake at pre-set levels. Three 4-20mA outputs are configured to transmit upstream level, downstream level (or flow), and differential level. The built-in relays of the Differential Level Transmitter can be calibrated for level control, differential level control, or open channel flow.
Other applications for the DLT 2.0 include two-tank inventory, where you can monitor levels within two tanks with just one instrument, aiding stock control and process efficiency. The Differential Level Transmitter will alternate a display of level in both tanks, plus it will transmit 4-20mA outputs.
Measures Level, Differential Level, and Open Channel Flow
Two, Non-Contacting Ultrasonic Sensors
Large White Backlit LCD Display
Three Isolated 4-20mA Outputs
Built-in 5-Key Calibration
2 Programmable Control Relays
Optional 2 Million Point Data Logger
Optional Intrinsically Safe Sensors
General Specifications
Spec name:
Description:
Electronics Enclosure
NEMA4X (IP 66) polycarbonate with clear, shatterproof cover
Accuracy
±0.25% of range or 2 mm (0.08 in), whichever is greater. Repeatability and Linearity: ±0.1%
Display
White, backlit matrix - displays upstream, downstream, and differential level, open channel flow and totalizer, relay states, operating mode, and calibration menu
Programming
Built-in 5-key calibrator with English, French, or Spanish language selection
Power Input
100-240 V AC 50/60 Hz (see Options), 3 W maximum with standard features
Outputs
3 x Isolated 4-20mA, upstream and downstream level (or open channel flow), and differential level, 1000 ohm maximum
Control Relays
2 total, rated 5 A SPDT; programmable for level control, differential control, or flow proportional pulse
Temperature probe inside the level sensor for high accuracy in changing temperatures
Sensor Cable
RG62AU coaxial, 7.6 m (25 ft) standard length (see Options)
Options
Options:
Description:
Sensors
10 m (32 ft) measurement range / Intrinsically safe models
Sensor Cable
15 m (50 ft) or 30 m (100 ft) RG62AU coaxial continuous from the sensor - or splice up to a total of 150 m (500 ft) with optional JB watertight NEMA4 steel with connection terminal strip
Power Input
9-32 V DC
Extra Control Relays
4 additional (6 total) rated 5 A SPDT
Data Logger
2 million point logger with USB output and Windows software - 3 channel logging (A & B sensors plus Differential or Open Channel flow
Enclosure Heater
Thermostatically controlled - recommended for temperatures below 0 °C (32 °F)
Intrinsic Safety Barriers
For sensor mounting in Class I, II, III, Div. I, II, Groups C, D, D, F, G hazardous locations
Sensor Mounting Stand
Adjustable, includes galvanized steel pipe, flanges, fittings, and hardware
Sunscreens
Sensor sunscreen and enclosure sunscreen for outdoor installations
