Siemens 200 P821 Spike Filter, P822 Narrow Echo Filter, Filters out echoes of a specific width

P821 Spike Filter

Dampens spikes in the echo profile to reduce false readings.

Primary Index		Single Point Model			Dual Point Model
	Global				Transducer
Values	0			Off
	1		*	On
	•		P820 Algorithm
Related	• P822 Narrow Echo Filter
	•		P823 Reform Echo
	• P825 Echo Marker Trigger

Use P821 if interference spikes are on the long shot Echo Profile display.

P822 Narrow Echo Filter

Filters out echoes of a specific width.

Primary Index		Single Point Model		Dual Point Model
	Global			Transducer
Values	0 = OFF (preset), nearest acceptable value returned
	greater = wider
	•	P820	Algorithm
Related	•	P821	Spike Filter
	•	P823 Reform Echo
	• P825		Echo Marker Trigger

Use this for transducer acoustic beam interference (e.g. ladder rungs). Enter the width of false echoes (in ms) to be removed from the long shot Echo Profile. When a value is keyed in, the nearest acceptable value is entered.

7ML19981FB06 MultiRanger 100/200 – INSTRUCTION MANUAL Page 205

Parameters