Specifications - London Electronics EasyReader ER2C Instruction Manual

Specifications

Bezel size
Case Depth
Weight
Case Material
Connectors
Operating Temp.
Storage Temp.
Power supply
Power consumption
Input Signals
Pull up/down resistor
Input Frequencies
Operating Overload
Display type
Digit height
Viewing distance
Accuracy
Scaling tempco
Excitation voltage
Filtering
Display update rate
Memory
260mm wide x 140mm high
75mm
600 grammes
Black uPVC with Acrylic lens
Internal Detachable Screw Terminal connectors
0 to 50 degrees C, non condensing humidity
-20 to 70 degrees C
95-265 VAC or 11-30 VDC optional
8 watts maximum
3 Jumper selectable thresholds with hysteresis:-
1. 2.5 to 3.5V (default) for signals 0-5V to 0-30V
2. 1V AC or more
3. 0-20mV RMS or more
Accepts any of these sensor types:-
NPN proximity or opto
PNP proximity or opto
Contact closure
CMOS 5V to 18V
PLC 5V, 12V 24V or 48V Logic
Passive inductance pickup, signal more than 40mV p-p
22 Kilohms to Excitation + or 0V respectively
With debounce jumpers 0 to 30 Hz. scalable
Without debounce jumpers 0 to 50 KHz. scalable
Can accept up to 60V without damage
High efficiency LED, red or green
57mm (A 102mm high model is also available)
25 metres (50 metres with 102mm digit model)
+/-0.05% of range +/-2 counts in Frequency mode
20ppm/Degree Celsius max. for Rate/Frequency
24VDC +/- 20% rated at 100mA. Noise 200mV max
(50Hz-100KHz)
Selectable time constants up to 5 secs in 0.5sec
increments
In any of the 6 Counting modes:
The display will update with each incoming pulse up to 10
updates per second for frequencies above 10 Hz.
In rate mode:
For frequencies above 3Hz., display will update 3 times per
second.
For frequencies below 3 Hz. the display will update on each
input pulse, provided the interval between pulses is less than
the chosen timeout period of 3, 10, 30 or 60 seconds.
Programme settings and accumulated total have 10 year data
retention in solid-state memory which does not need batteries to
operate.
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