Lakeshore Learning Materials 622 - Manual (Page 75)

Lake Shore Model 620/622/623/647 Magnet Power Supply User’s Manual
Options & Accessories 6-7
IBS? Magnetic Field Summary Query
Input: IBS?
Returned: [IOUT], [BFLD], [STB]
Remarks: Returns 23 characters plus up to two terminators.
LALM Program Level Alarm
Input: LALM [alarm] where [alarm] is the level value between 0 and ±999.9 that activates the
alarm. The value is truncated (not rounded) to the tenths place.
Remarks: The initial condition is 0. The alarm value uses the existing units. Conversion is made if units
are changed.
LALM? Level Alarm Query
Input: LALM?
Returned: The value returned is a number between ±999.9000.
Remarks: Nine characters plus up to two terminators are returned.
LALMS Program Level Alarm Status
Input: LALMS [status] where [status] = 0 for OFF, or 1 for ON.
Remarks: The initial condition is 0.
LALMS? Level Alarm Status Query
Input: LALMS?
Returned: 0 or 1. 0 indicates that the level alarm has not been reached. 1 indicates that the level is
below the alarm value and the alarm has been activated.
Remarks: Returns one character plus up to two terminators.
LEVL Read LHe Level
Input: LEVL [status] where [status] = 1 to read the level, or 0 not to read it.
Remarks: Reading the level requires a minimum of 5 seconds to update the level reading.
LEVL? LHe Level Query
Input: LEVL?
Returned: A number between ±999.9000.
Remarks: Returns nine digits plus up to two terminators.
LUNI Program LHe Level Units
Input: LUNI [units] where [units] = "%" for percentage, "E" for English units (inches), or "M" for
metric units (centimeters).
Remarks: The initial condition is E (inches). Make sure there is a space between the command and the
units parameter.