London Electronics EasyReader ER4P, Instruction Manual, Page: 15 / 20

Specifications
12
Bezel size 415mm wide x 195mm high
Case Depth 75mm
Weight 900 grammes
Case Material Black uPVC with Acrylic lens
Connectors Internal Detachable Screw Terminal connectors
Operating Temp. 0 to 50 degrees C, non condensing humidity
Storage Temp. -20 to 70 degrees C
Power supply 95-265 VAC or 11-30 VDC optional
Power consumption 8 watts maximum
Input Signal Ranges +/-20mA +/-10V
Operating Overload +/-22mA +/-12V
Maximum Overload +/-150mA +/-100V
Input Resistance 33 Ohms +/-2% 1 Megohm nominal
Display type High efficiency LED, red or green
Digit height
102mm (A 57mm high model is also available)
Display Rangability Fully digitally scalable for ZERO and SPAN readings anywhere in
the range -1999 to 9999 with selectable decimal point positon
Viewing distance 50 metres (25 metres with 57mm digit model)
Accuracy +/-0.1% of range +/-2 counts
Span tempco 100ppm/Degree Celsius max
Zero Tempco 50ppm/Degree Celsius
Excitation voltage 24VDC +/- 20% rated at 30mA. Noise 200mV max
(50Hz-100KHz)
Filtering Selectable time constants up to 5 secs in 0.5sec
increments
Count-by (roundup) 1, 2, 5, 10, 20 or 50
A/D conversion Dual slope -1999 to +9999 count maximum resolution
CMRR 100dB 0-60Hz. 250V max.
NMRR 60 db at 50/60 Hz.
Display update rate 2.5 readings per second
Memory
10 year data retention. No batteries required.