Keithley 3730 - Version 1.51 Release; Supported Models; Overview; Critical Fixes

Version 1.51 Release - Supported models Series 3700A Firmware Release Notes
3706A-850SV1.55a / June 2017
16
Version 1.51 Release
Supported models
This firmware is used on the following Keithley Instruments products:
Models 3706A, 3706A-S, 3706A-NFP, 3706A-SNFP, and all Series 3700 cards
Overview
Note: The 1.51 release can only be used on 3700A models. This release is not compatible with 3700 (non-A)
models.
The following table lists the exact version numbers of the available Series 3700 components.
Model
Version
Series 3700A Mainframe
1.51b
Series 3700A High Performance DMM
1.50b
3720 Dual 1x30 Multiplexer
1.40h
3721 Dual 1x20 Multiplexer
1.40h
3722 Dual 1x48 High Density Multiplexer
1.40h
3723 Dual 1x30 High Speed Reed Relay Multiplexer
1.40j
3724 Dual 1x30 FET Multiplexer
1.40j
3730 Dual 6x16 High Density Matrix
1.40h
3731 Dual 6x16 High Speed Reed Matrix
1.40j
3732 Quad 4x28 High Speed Reed Matrix
1.40m
3740 32 Channel Isolated Switch
1.40h
3750 Multifunction I/O Card
1.40j
Critical fixes
NOTE: Firmware version 1.51 is the initial firmware release for the 3700A series and should not be installed on
non-A (for example 3706) models. For non-A series instruments, V1.41c is the latest firmware version. The
information provided below is only used to inform customers who had been previously using a model 3706 with
firmware release 1.41c.
Models affected:
3706A, 3706A-S, 3706A-NFP, 3706A-SNFP
Symptom:
A repeated call to dmm.open was causing a memory leak.
Resolution:
The firmware was modified to free up allocated memory correctly.
Models affected:
3706A, 3706A-S, 3706A-NFP, 3706A-SNFP
PR45880
PR45951