Accsence VersaLog - Channel and Sensor Specifications; VL-P - State;Event;Pulse Inputs, Range Programmable

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Accsense VersaLog Data Loggers User’s Manual Page 25

Channel and Sensor Specifications:

Channels

CH1 – Excitation sense input

CH2 - ±8 mV input range

Excitation Voltage Output

2.5VDC (Max load current: 10mA)

Accuracy

± 0.2% @ 25°C

VL-P – State/Event/Pulse Inputs, Range Programmable

VersaLog P is a 7-channel, battery powered, stand-alone pulse/state/event data logger. The

logger detects electronic or mechanical pulse counts, state changes or events in any of the seven

channels. Data is stored in non- volatile flash memory for later retrieval. It works with

gas/water/power meter, rain gauge, flow rate meter and any other digital signal/switch closure

output devices.

State channel is used to detect a state changes. It records the time stamp when a state changed from

Off/Close to On/Open and from On/Open to Off/Close . The resolution of the time stamp is the

sampling interval. i.e. if a state changed more than once during a sampling interval period only the

first state will be recorded (the third period in the diagram below). A typical application is to

monitor how long a device is on and off.