Pressure calibration 4/20mA menus allow the user to set the minimum and maximum pressure values
that are represented by current values of 4 and 20mA respectively. These values should be present or
deducible from the datasheet for the sensor used. The BundGuard will calculate pressure using a
proportional ratio of pressure/current set by the max min values provided.
Pressure thresholds are available for configuration when using transducer type sensors. The pressure
threshold in PSI is selectable using the keypad. A filter over-pressure alarm will be raised should the
pressure recorded be higher than the value set in this menu page.
4.1.10.16 Flow metering
Flow metering is only set if a flow meter has been fitted to the pump(s) outlet. The Flow metering can is
configured from the installer menu system. The options available for configuration are:
-Meter enable
-View flow-rate
-Flow meter calibration 20mA
-Flow meter calibration 4mA
The meter enable configuration allows the installer to enable or disable the counting of liquid pumped.
4.1.10.17 GSM
The GSM menu is only available if the GSM module is installed. The menu pages available are:
-GSM enable (default: OFF)
-GSM forwarding number (default: blank)
-GSM info
The GSM forwarding number can be any number up to 15digits in length. This is the telephone number
that all alarms will be forwarded to, when they occur. The number cannot have spaces or dashes within
it, and so must be a consecutive string of numbers to be valid. This rule is enforced in the phone number
entry page in the menu system.
The GSM info screen allows the user to scroll through details of the GSM and it’s connectivity status.
Within this page, the following information is available:
-SIM status
-Network status
-Operator name
These screens are refreshed every 0.5seconds and may take a few seconds or more to update any values
to reflect any changes such as SIM insertion.
A GSM SMS message will always conform to a set layout. These are described below. All messages
contain a timestamp when the message was generated, and the serial number of the BundGuard
sending the message.
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