961-20A0-010 Datasheet, PDF (16/36 Pages) Magnetrol International, Inc. – Ultrasonic Single and Dual Point Level Switches

2.5.2.4 High/Low DIP Switch
The Hi/Lo DIP switch is used to select whether the 961
will be used as high level fail-safe switch or low level fail-safe
switch. Normal process level operation produces an 8 mA
value, and 16 mA is produced when the unit is in a level
alarm state. The table can be used to assist in configuring
the Hi/Lo DIP switch.
High/Low DIP Switch Configuration (Model 961 Loop-powered)
Hi/Lo DIP
Gap
Level
Switch Condition Condition
Output
Signal
8 mA
LED
16 mA
LED
FAULT
LED
Dry
8 mA
(±1 mA)
On
Off
Off
Hi
(HLFS)
Normal
Wet
16 mA
(±1 mA)
Off
On
Off
Alarm
Wet
8 mA
(±1 mA)
On
Off
Off
Lo
(LLFS)
Normal
Dry
16 mA
(±1 mA)
Off
On
Off
Alarm
NOTE: The FAULT LED only turns on during a fault condition.
2.5.2.5 22/3.6 DIP Switch
The 22/3.6 DIP switch is used to select whether the 961
will produce a 22 mA or a 3.6 mA output when the unit
detects a fault condition.
NOTE: Fault current will be greater than 21 mA, or less than 3.6 mA.
16
51-646 Echotel^® Model 961 & 962 Ultrasonic Level Switches