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Technical Data
Measuring transducer ORT 7
Inputs / outputs
2 Photocells for inputs: directly transmitted light / scattered light,
Voltage output for light emitter, – 2 V, pulse-amplitude modulated,
Signal input for separator ON/OFF,
GPS input RS 485, 4800 Baud, NMEA 83 protocol, data record GPRMC,
3 Volt-free change-over contacts for alarm , 2 and purging valve (Clw),
contact material AgNi 0.5,
max. contact rating for switching voltages 24 V AC/DC, 5 V AC and 230 V AC: resistive / inductive 4 A,
Current output 0/4 – 20 mA as actual value output, max. load 500 ohm.
Indicators and adjustors
LCD display for indicating the actual value, limits, status and malfunctions,
8 Membrane keys,
4 LEDs for indicating alarm, status and malfunction
3 Green LEDs on basic circuit board for monitoring the operating voltages
Data storage
DataFlashcard 8 MB
Measuring range
0 to 25 ppm (ppm = parts per million)
Actual value output
0 or 4 mA = 0 ppm, 20 mA ≥ 25 ppm
Limits for alarm 1 and 2, adjustment range
Adjustable between 0 and 5 ppm
Delay of response for alarm 1 and 2, adjustment range
Adjustable between 0 and 5 sec.
Mains voltage
24 V +0 / –5 %, 50/60 Hz
230 V +0 / –5 %, 50/60 Hz (optional)
5 V +0 / –5 %, 50 / 60 Hz (optional)
Power consumption
50 VA
Fuse
24 V: Thermal fuse M .6 A 5 x 20,
230 V: Thermal fuse M 0.2 A 5 x 20
5 V: Thermal fuse M 0.4 A 5 x 20
Housing
Field case for wall mounting,
Case material: die-cast aluminium
Cable gland / Electrical connection
8 cable glands with integrated cable clamps, M 6 x .5
3 Three-pole screw-type terminal strips, conductor size 0.75 mm
8 Multi-pole screw-type terminal strips, detachable, conductor size .5 mm
Protection
IP 65 to EN 60529
Admissible ambient temperature
0 – 55 °C
Weight
3.6 kg
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