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PMM - Barometer module not able to be selected as ATM/Barometer reference

If you have a barometer module for a 6270A, 2271A, 8270A or 8370A pressure calibrator and it cannot be selected as the ATM/barometer module then it may have a parameter set wrong. The parameter can only be read or set by remote commands directly sent to the module. It cannot be read or set when installed in a controller.

Use a PMM-CAL-KIT—20M or PMM-CAL-KIT-40M (PM module calibration kit) to communicate directly with a module.

Note that eligible barometer modules for these controllers are PM200-A100K, PM500-BA120K, PM500-A120K, or BRM600-BA100K, All other modules cannot be selected as the ATM/barometer module.

Send the command "PORTS?" to the PMM (without the quotation marks, all commands/replies below are shown by quotiation marks although they are not used or included in the replies).

A. If the module is a BRM600-BA100K then the reply needs to be “R” for it to be selected as a barometer and to operate correctly in a controller. The BRM600-BA100K is unique in that it can only be used as a barometer and cannot be used as the active module (whether in Auto, Fast or Fixed mode). It's TEST and REFERENCE ports are common to each other internally.

If the reply is not “R”, then send the command “PORTS R” to set the parameter to “R”. Send the command “PORTS?” again to the module to verify that the reply is “R”

B. For all other eligible modules (PM200-A100K, PM500-BA120K, or PM500-A120K) the reply needs be "A" to be recognized for use as a barometer. When not selected as the barometer, these modules can be used like any other module.

If the reply is not “A”, then send the command “PORTS A” to set the parameter to “A”. Send the command “PORTS?” again to the module to verify that the reply is “A”

A reply of "TR" is normal for all other modules. The reply R, A or T informs the controller what type of module is present and when it is OK, and not OK, to open/close the slot's REF valve.

If the port setting is correct and an eligible module cannot be selected as the ATM/barometer module then choose some other module in Fixed mode and ensure that the pressure is vented and stable, and try again. Contact Fluke Calibration Pressure Technical Support if problems persist.

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Comments

  • Avatar
    Alec Zhou

    Does PM500-A160K and PM500-A200K support the barometer mode?

    Edited by Alec Zhou
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  • Avatar
    Kyle Clark

    Hi Alec - These are the modules that can be used as a barometer module for 2271A, 6270A, 8270A and 8370A controllers. Note that the BRM600-BA100K can only be used as a barometer module. The others can be used as regular measurement modules if they aren't designated as the barometer module.

    BRM600-BA100K
    PM200-A100K
    PM500-BA120K
    PM500-A120K

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