Honeywell RMA805 Enraf FlexLine Remote Indicator
Documentation
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Installation and Startup
Installation Site Evaluation
Evaluate the site selected for the RMA805 Enraf FlexLine Remote Indicator installation with respect to the process system design specifications and Honeywell’s published performance characteristics for your particular model. Some parameters that you may want to include in your site evaluation are:
- Environmental Conditions:
- Ambient Temperature
- Relative Humidity
- Potential Noise Sources:
- Radio Frequency Interference (RFI)
- Electromagnetic Interference (EMI)
- Vibration Sources
- Motorized System Devices (e.g., pumps)
Display Installation Precautions
Temperature extremes can affect display quality. The display can go blank if the temperature is below -20°C or above +70°C; however, this is only a temporary condition. The display will again be readable when temperatures return to within operable limits.
Mounting Remote Indicator
Summary Remote Indicator models can be attached to a two-inch (50-millimeter) vertical or horizontal pipe using Honeywell’s optional pipe mounting bracket. Honeywell’s optional wall mounting bracket is also shown below. Figure 1 shows typical bracket-mounted installations.
Mounting Dimensions
Refer to Honeywell drawing number 50094836 for detailed electronic housing dimensions. Refer to Honeywell drawing numbers 50095917 for detailed pipe mounting dimensions and 50095918 for detailed wall mounting dimensions. Abbreviated overall dimensions are also shown on the Specification Sheets for the Remote Indicator models. This section assumes that the mounting dimensions have already been taken into account and the mounting area can accommodate the Remote Indicator.
Overview
The Remote Indicator must be connected to the local HART-compatible bus of the Enraf Smartradar FlexLine or the Enraf SmartServo 954. The Remote Indicator has 3 terminals. The following table provides the connection details:
Electrical Wiring
The Remote Indicator shall be connected to the Loop + and Loop – terminals of the FlexLine Gauge. Typically, these are terminals 24 and 25. See the installation manual of the FlexLine Gauge for more information. It is possible that other devices such as a VITO temperature convertor and a pressure transmitter must be connected to the same loop. All devices must be wired in parallel. Ensure all devices are set to 4 mA digital multi-drop mode before connecting to the FlexLine Gauge. for a connection diagram.
Jumper Settings
On the Remote Indicator, there is a failsafe jumper and a write-protect jumper behind the display on the Communication Module. The top jumper is the failsafe jumper. It is highly recommended to put the failsafe jumper to DOWN (Downscale). The bottom jumper sets the right to protect.
Configuration Guide
The Remote Indicator 3-button interface provides user interface and operation capability without opening the Remote Indicator. The user must press the button to call up the Main Menu. To exit the Main Menu and return to the PV display screen, select. Use the button to scroll through the list of menu items. Press the button to select an item for data entry or activation. When an item is selected for data entry or activation, the cursor is positioned over the leftmost digit to allow editing of the value. No action is taken against a menu item until the button is pressed.
A.3 Conditions of Use” for Ex Equipment”, Hazardous Location Equipment or “Schedule of Limitations”:
- Consult the manufacturer for dimensional information on the flameproof joints for repair.
- The painted surface of the RMA 800 series may store electrostatic charge and become a source of ignition in applications with low relative humidity of less than approximately 30% relative humidity where the painted surface is relatively free of surface contamination such as dirt, dust, or oil. Cleaning of the painted surface should only be done with a damp cloth.
- The ambient temperature range and applicable temperature class of the equipment are as follows: RMA805 series: T4 for -50˚C < Ta < 70˚C
- The RMA800 series enclosure contains aluminum and is considered to present a potential risk of ignition by impact or friction. Care must be considered during installation and use to prevent impact or friction to avoid impact.
- If a charge-generating mechanism is present, the exposed metallic part on the enclosure is capable of storing a level of electrostatic charge that could become incendive for IIC gases. Therefore, the user/installer shall implement precautions to prevent the buildup of electrostatic charge, e.g. earthing the metallic part. This is particularly important if the equipment is installed in a zone 0 location.
- On installation, the RMA800 series shall be provided with supply transient protection external to the apparatus such that the voltage at the supply terminals of the RMA800 series does not exceed 140% of the voltage rating of the equipment. However, when an RMA805 is connected to a SmartRadar FlexLine or a SmartServo 954 the supply transient protection is included in the SmartRadar FlexLine or SmartServo 954.
WARRANTY/REMEDY
Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Contact your local sales office for warranty information. If warranted goods are returned to Honeywell during the period of coverage, Honeywell will repair or replace without charge those items it finds defective. The foregoing is Buyer’s sole remedy and is instead of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose.
Specifications may change without notice. The information we supply is believed to be accurate and reliable as of this printing. However, we assume no responsibility for its use. While we provide application assistance personally, through our literature and the Honeywell website, it is up to the customer to determine the suitability of the product in the application.
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