SKU:
Trumeter HED 251 4 Digit panel mount counter 24mm X 48mm
24 X 48mm 4 digit totalising counter suitable for many OEM applications. Ideal for contact closure and reed switch signal inputs.
These miniature 4 digit totalising counters are suitable for either direct PCB mounting or panel mounting.
Description
24 X 48mm 4 digit totalising counter suitable for many OEM applications. Ideal for contact closure and reed switch signal inputs.
These miniature 4 digit totalising counters are suitable for either direct PCB mounting or panel mounting.
Features
- Uses the latest CMOS circuitry to achieve very low quiescent current consumption
- 10mm black character high contrast LCD display
- Backlit version HED251-T
- Counts pulses up to 10Hz frequency
- External reset input
- UL and cUL/CSA approved
Specification
Supply Voltage
- 1.5VDC
Display
- 4 digit black LCD, 10mm characters with leading zero blanking
Count Range
- 0-9999
Count Input
- Contact closure open collector input. 10Hz max, negative edge triggered, 0.7V threshold 1.8V max, 25mS min pulse width
Reset Input
- Negative edge triggered, 0.7V threshold, 15mS minimum pulse length, TTL/CMOS Compatible
Operating Temp
- -10°C to +50°C
Storage Temp
- -20°C to +70°C
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