Network Meter Block Installation, Operation, & Maintenance Manual
Monitoring and Configuring the NMB 26
• Pulse Output to Samplers—The NMB is used to control a sampler and is connected to the
sampler grab input. A pulse is generated on this output each time a sample is required.
• Flow Direction Indication High Is Reversed—The output is asserted (on) when the flow is in
the reverse direction and off when the flow is in the forward direction.
• Flow Direction Indication High Is Forward—The output is asserted (on) when the flow is in the
forward direction and off when the flow is in the reverse direction.
• Pulse Security Alarm—Sets the output to asserted (on) when a pulse security alarm is
detected.
• Low Flow Alarm—The output is asserted (on) when the flow rate drops below the configured
threshold.
• High Flow Alarm—The output is asserted (on) when the flow rate exceeds the configured
alarm threshold.
• Active Turbine Alarm—The output is asserted (on) when a turbine meter alarm is detected
(only available when using the TMD firmware).
• Active General Alarm—The output is asserted (on) when a general alarm is detected (only
available when using the TMD firmware).
• Previous General Alarm—The output is asserted (on) when any previous alarm has not yet
been acknowledged (only available when using the TMD firmware).
• Alarm for Wrong Setup—The output is asserted (on) when a configuration parameter is set
incorrectly (only available when using the TMD firmware).
• Alarm for Bent Blades—The output is asserted (on) when a bent turbine meter blade is
detected (only available when using the TMD firmware).
• Alarm for Bearing—The output is asserted (on) when a bad bearing or irregular flow is
detected in the turbine meter (only available when using the TMD firmware).
• In the LED (D4) field, select one of the following display options for the red LED light on the front of
the NMB:
• Off—The light is always off.
• On—The light is always on (when the NMB is connected to a power supply).
• MQTT Controlled—The light is controlled by an MQTT message broker.
• MQTT Connection Status—The light blinks when the NMB is successfully communicating with
the MQTT broker.
• In the Input #1 and #2 fields, select one of the following functions to be used for each input. These
field correspond to the Din1 and Din2 inputs on the NMB.
• Not Configured—No action is taken.
• Flow Direction—Determines whether the current flow is added to the forward or reverse totals.
When this input is asserted (on), the flow is counted as forward; when the input is off, the flow
is counted as reverse.
• Seal Parameters—Prevents changes to configuration settings when this input is de-energized
by disabling tabs in the configuration area.