To Next PageTo Next PageWhy is the zero output unstable on my MKS Measuring Instruments?
If the zero output of your MKS Measuring Instruments is unstable, it might be due to the ambient temperature being too high or varying significantly. Refer to the Startup section to ensure the ambient temperature complies with the product requirements.
What to do if the measurement on my MKS Baratron DMA slowly goes positive?
If the measurement from your MKS Measuring Instruments slowly increases positively over time, it could be due to overpressure or contamination buildup in the measurement cavity. In this case, you should return the device to MKS for servicing or transducer replacement.
How to fix overrange signal on MKS Measuring Instruments?
An overrange positive or negative signal in MKS Measuring Instruments can be caused by a shorted transducer or a damaged interconnect cable. To resolve this, measure the supply voltages at the connector, inspect the cable and transducer, and replace them if necessary.
General| Materials Exposed to Process | Stainless Steel |
|---|---|
| Output Signal | 0 to 10 VDC |
| Power Supply | ±15 VDC |
| Zero Drift | ±0.01% of Full Scale/°C |
| Connector | 9-pin D-sub |
Defines WARNING, CAUTION, and NOTE messages used in the manual.
Instructions against unauthorized modifications and part replacements.
Specifies that only qualified personnel should perform service.
Advises caution when using hazardous materials and proper safety precautions.
Instructions for purging the unit after installation or removal.
Details on safe purging procedures, including ventilation and gloves.
Warning against operating in explosive environments unless certified.
Guidelines for using correct fittings and tightening procedures.
Emphasizes checking connections for leaks.
Recommendation to install a burst disc for safety with pressurized gas.
Instructions to prevent contaminants from entering the unit.
Importance of warm-up time for temperature-controlled units.
Introduces the MKS Baratron Type DMA Absolute Pressure Transducer with DeviceNet interface.
Instructions for carefully unpacking the Type DMA unit and checking for damage.
Details on compliance with EC directives and requirements for DeviceNet cables.
Details the power supply requirements for the DMA unit.
Provides top and side view dimensions of the DMA transducer.
Provides guidance on mounting the transducer correctly.
Describes the digital communications and analog interface connectors on the unit.
Details the power-up sequence and LED indications for the DMA transducer.
Explains the need for initial and periodic zero adjustments.
Details manual or DeviceNet service methods for zeroing digital and analog signals.
Explains DeviceNet service for fine zero adjustments with a target of zero or offset.
Explains how digital output is read and pressure is measured.
Describes conditions that cause minor recoverable or unrecoverable faults.
Explains major unrecoverable faults due to hardware or memory issues.
Explains how to set the data rate via software or rotary switch.
Covers maintenance requirements, specifically zero adjustment.
Explains how to interpret the model code for transducer options.
Lists attributes for Object Models by Class Code, including details like Data Type and Access Rule.
Explains DeviceNet messaging protocol and message interpretation.
Details how to request information and interpret responses for explicit messages.
Provides an example command to send an I/O poll request message.
