4-20 mA Current Output Transmitter & Dual Pulse Input Totalizer

Pulse Input
Types Signal Ground Minimum Signal Maximum Signal Maximum Frequency Contact Debounce	AC, pulses from NPN, PNP transistors, contact closures, magnetic pickups. Common ground for channels A & B. Nine ranges from (-12 to +12 mV) to (+1.25 to +2.1V). 250 Vac 1 MHz, 30 kHz, 250 Hz (selectable). 0, 3, 50 ms (selectable).
Analog Output (standard)
Output Levels Compliance, 4-20 mA Compliance, 0-10V Output Resolution Output Accuracy Output Update Rate Output Isolation	4-20 mA and 0-10 Vdc (selectable) 10V ( 0-500 Ω load ) 2 mA ( 5 kΩ load ) 16 bits (65,536 steps) 0.02% of output span Programmed gate time + 30 ms + 0-2 signal periods 250V rms working, 2.3 kV rms per 1 minute test
Transducer Excitation Output (standard)
Jumper Selection 1 Jumper Selection 2 Jumper Selection 3	10V @ 60 mA, isolated to 50V from signal ground 5V @ 50 mA, isolated to 50V from signal ground 15V @ 60 mA, non-isolated
Dual Relay Output (optional)
Relay Type Load Rating	Two solid state relays, SPST, normally open, Form A 130 mA at 140 Vac or 180 Vdc
Power Input
Standard Power Low Power Option Power Frequency Power Isolation Power Consumption	85-264 Vac or 90-300 Vdc (DC operation not UL approved) 10-48 Vdc or 12-32 Vac DC or 47-63 Hz 250V rms working, 2.3 kV rms per 1 min test 2W typical, 3W with max excitation output
Mechanical
Dimensions Mounting Electrical Connections	129 x 104 x 22.5 mm case 35 mm rail per DIN EN 50022 Plug-in screw-clamp connectors
Environmental
Operating Temperature Storage Temperature Relative Humidity Cooling Required	0°C to 55°C -40°C to 85°C 95% at 40°C, non-condensing Mount transmitters with ventilation holes at top and bottom. Leave 6 mm (1/4") between transmitters, or force air with a fan.

Up/Down Totalizing
	Up/down totalizing is provided by a mode of the Extended totalizing transmitter where pulses are either added or subtracted on Channel A based on a direction input on Channel B. The unit can also be programmed so that counting by Channel A is inhibited by an input on Channel B.
Combining Two Totals
	A+B, A-B, A/B and AxB arithmetic functions are available with the Extended totalizing transmitter. A+B can sum two totals, while A-B subtracts the outflow total from inflow total. A/B ratio applied to two totals helps assure the proper mixing of components.
Up or Down Counting with Preset
	A single Laureate dual-channel totalizing transmitter will handle two repetitive fill operations by counting from zero up to a preset, or down from a preset to zero. The dual relay option is required.
Machine ON Time and Utilization
	An easy way to measure the ON time of machines is to count AC line cycles and scale the total to hours. To display machine utilization or duty cycle in percent, use the Extended totalizing transmitter. Connect Channel A to switched AC and Channel B to the AC line, and apply a 100 multiplier to the A/B ratio.
Custom Curve Linearization
	The Extended version of the Laureate dual channel totalizing transmitter can transmit scaled rate or total for the same channel at the push of a button, and alarm both the rate and total. The Extended version can also do curve linearization, thereby extending the working range and accuracy of flow transducers.

Laureate 4-20 mA Transmitter & Dual Pulse Input Totalizer