The B3000 flow monitor incorporates state-of-the-art, digital signal processing technology, designed to provide the user with
exceptional flexibility at a very affordable price. Though designed for use with Blancett flow sensors, this monitor can be used
with almost any flow sensor producing a low amplitude AC output or contact closure signal.
This monitor is capable of accepting low-level frequency input signals typically found in turbine flow sensors. The output
signal for these type of sensors is a frequency proportional to the rate of flow. The B3000 monitor uses the frequency
information to calculate flow rate and total flow. Through the use of the programming buttons the user can select rate units,
total units and unit time intervals among other functions. All B3000 flow monitors come pre-configured from the factory, if
ordered with a Blancett flow sensor. If required, however, it can easily be re-configured in the field. Finally, the user can choose
between simultaneously showing rate and total, or alternating between rate and grand total.
The monitor is available in two different levels of functionality and two packaging options. The base model provides all
the functions necessary for the most common flow metering applications. The advanced version adds communications
capabilities over an RS485 bus using Modbus RTU and control outputs. Completing the line is a solar powered model
(NEMA 4X Only).
Packaging options include a polycarbonate, NEMA 4X version and an aluminum explosion proof enclosure.
Auto switching between internal battery and external loop power; B30A/Z includes isolation
between loop power and other I/O
B30A/B/X/Z
Battery: 3.6V DC lithium “D Cell” gives up to 6 years of service life
Loop: 4-20 mA, two wire, 25 mA limit, reverse polarity protected, 7V DC loop loss
B30L/M/W/YLoop: 4-20mA, 7V DC loop loss
B30S
Internal battery (3.6V DC Nicd) provides up to 30 days of power after 6…8 hours exposure of the
integrated photovoltaic cell to direct sunlight.
Inputs
Frequency Range: 1…3500 Hz
Magnetic Pickup
Frequency Measurement Accuracy: ±0.1%
Over Voltage Protection: 28V DC
Trigger Sensitivity: 30 mV
(High) or 60 mV
p-p
(Low) - (selected by circuit board jumper)
p-p
)
Amplified PulseDirect connection to amplified signal (pre-amp output from sensor)
Outputs
Analog 4-20 mA
4-20 mA, two-wire current loop
25 mA current limit
One pulse for each Least Significant Digit (LSD) increment of the totalizer
Pulse Type:(selected by circuit board jumper)
Opto-isolated (Iso) open collector transistor
Totalizing Pulse
Non-isolated open drain FET
Maximum Voltage: 28V DC
Maximum Current Capacity: 100 mA
Maximum Output Frequency: 16 Hz
Pulse Width: 30 mSec fixed
Type: Open collector transistor
Adjustable flow rate with programmable dead band and phase.
Status Alarms
B30A/M/Y/Z
Maximum Voltage: 28V DC
Maximum Current: 100 mA
Pullup Resistor: External required (2.2 k Ohm minimum, 10 k Ohm maximum)
Page 7 March 2014
Compact Digital Flow Monitor, Model B3000
Status Alarms
B30B/L/S/W/X
B30A/M/Y/Z
B30B/L/S/W/XNone
B30A/B/L/M/W/X/
Y/Z
Common Functions
Totalizer Reset
None
Modbus Digital Communications
Modbus RTU over RS485, 127 addressable units / 2-wire network, 9600 baud, long integer and
single precision IEEE754 formats; retrieve: flow rate, job totalizer, grand totalizer, alarm status and
battery level; write: reset job totalizer, reset grand totalizer.
Data Configuration and Protection
Two four-digit user selectable passwords; level one password enables job total reset only, level two
password enables all configuration and totalizer reset functions
OTE:NNot applicable on solar powered units.
Totalizer Operation
Monitors contain two totalizers: Job and Grand. The user can enable or disable the grand totalizer
function. If grand totalizer is enabled, it shares the seven-digit display line with the job totalizer –
alternating between job and grand. Grand totalizer rollovers are displayed with a count value that
increments at each rollover. Totalizers are automatically backed up into non-volatile FLASH memory
every twenty minutes and prior to battery expiration; manually via keypad or when signaled via
Modbus (B30A/M/Y/Z only).
B30A/B/L/M/S only: The job totalizer can be reset by momentarily contacting the total reset
terminal to ground or pressing MENU and ENTER simultaneously. The grand totalizer can be reset
via selection in the advanced menu or modbus.
OTE:NModbus not applicable on solar powered units.
B30W/X/Y/Z: *The job totalizer can be reset via the “through the glass” touch sensor, by
momentarily contacting the total reset terminal to ground or pressing MENU and ENTER
simultaneously. The grand totalizer can be reset via selection in the advanced menu or Modbus
command.
Totalizer PresetUser can preset job total values.
B30A/B/L/M/S: Class I Division 1, Groups C, D; Class II, Division 1 Groups E, F, G; Class III for US and
Canada. Complies with UL 913 and CSA C22.2 No. 153
Safety
B30W/X/Y/Z: Class I Division 1 Groups B, C, D; Class II, Division 1, Groups E, F, G; Class III for US and
Canada Complies with UL 1203 and CSA C22.2 No. 30
ATEX II 2 G Ex d IIC T4 Gb and ATEX II D Ex tb IIIC T125 °C Db
Complies with Directive 94/9/EC.
B30A/B/L/M only4-20 mA Loop: Vmax = 28V DC Imax = 26 mACi = 0.5 FLi = 0 mH
B30A/B/L/M/S onlyPulse Output: Vmax = 28V DCImax = 100 mA Ci = 0 FLi = 0 mH
*For hazardous locations the monitor must be installed on an Explosion-Proof rated meter. To
maintain compliance, optional kit P/N B280-737 for meter mounting is required.
Page 9 March 2014
Compact Digital Flow Monitor, Model B3000
INSTALLATION
Connecting the B3000 to a Frequency Output Device
Most turbine flow sensors produce a frequency output that is directly proportional to the volumetric flow through the sensor.
There are, however, different output waveforms that can be presented to the display device depending on the transducer that
converts the mechanical motion of the turbine into an electrical signal.
The B3000 monitor has two jumpers that are used to set the type of signal and the minimum amplitude of the signal that it
accepts. The first thing to established is the type of output provided by the flow sensor. The outputs almost always fall into
one of two types.
Type 1 – This is the unaltered frequency signal coming from an un-amplified magnetic pickup. This signal is
normally a sine wave in appearance and the amplitude of the waveform varies with the flow. Small turbines have
comparatively small rotating masses so they produce a smaller amplitude waveform and higher frequencies than
larger turbine sensors.
Type 2 – The frequency signal from the transducer is amplified, wave shaped or both to produce a waveform of a
specified type and amplitude. Most amplified transducers output a square wave shape at one of many standard
amplitudes. For example a popular amplified output is a 10V DC square wave.
If the flow sensors output signal is type 1, the minimum amplitude of the frequency output must also be determined. The
B3000 has a high or low signal sensitivity setting. High signal sensitivity (30 mV) is used with low amplitude (usually small)
turbine flow sensors. The low signal sensitivity setting (60 mV) is typically used for larger turbines and amplified transducers
(see Figure 3 and Figure 4).
OTE:NThe high signal sensitivity setting is used where the minimum signal amplitude is below 60 mV. Setting the sensitivity
lower than necessary opens the instrument up to a greater possibility of noise interference.
Once the type of waveform and input signal level (amplitude) are determined the jumpers on the B3000 circuit board are set.
For typical variable reluctance magnetic pickups the waveform selection jumper should be set for Mag. The setting for
the input level must be determined from looking at the magnetic pickup specifications. If the minimum amplitude at the
minimum rated flow is greater than 60 mV use the low signal sensitivity jumper position (see Figure 3 and Figure 4).
If the minimum signal level is below 60 mV use the high signal sensitivity jumper position.
Again all B3000 flow monitors come pre-configured from the factory, if ordered with a Blancett flow sensor.
Page 10 March 2014
Iso Total Pluse
OC Total Pluse
Programming Manual
TR_B
P1
TR_A
RS485 Gnd
Setpoint 1
Setpoint 2
Gnd
+
Freq. In
JP1
Input Total Pulse Signal
Pulse
–
Mag
+
4-20mA
JP2
–
OC
+
Iso
–
JP3
High
Total Reset
Low
Signal Gnd
TB1
Pulse
Mag
JP1
Input
Input
JP1
MagPulse
JP2
LowHigh
Signal
Input
JP1
Total Pulse
Iso Total Pluse
OC Total Pluse
Freq. In
4-20mA
Total Reset
Signal Gnd
ISO OC
MagPulse
TB2
+
–
+
–
+
–
JP3
P1
P1
TB1
Gnd
Setpoint 2
Setpoint 1
RS485 Gnd
TR_A
TR_B
+
–
P2
3.6Vdc
Battery
Figure 5: Typical magnetic pickup connection (NEMA 4X)Figure 6: Typical magnetic pickup connection (Ex-Proof)
For amplified input signals the input jumper should be set to Pulse and the signal jumper set to Low
(see Figure 7 and Figure 8).
OTE:NAmplified magnetic pickups require an external power source. The B3000 does not supply power to an
The power supply used in the B30A/B/X/Z is an internal lithium 3.6V DC “D” cell that will power the monitor for about six years
when no outputs are used. The monitor can also get power from a 4-20 mA current loop (see Figure 9 and Figure 10). If the
current loop is used a sensing circuit within the monitor detects the presence of the current loop and disconnects the battery
from the circuit. The B30L/M/W/ versions use loop power only and the B30S uses solar power only.
JP2
LowHigh
10…28V DC
4-20 mA
Current Loop
(10…28V DC)
Load
RS485 Gnd
Setpoint 1
Setpoint 2
Freq. In
4-20mA
Iso Total Pluse
Total Reset
OC Total Pluse
Signal Gnd
Signal
TR_B
TR_A
Gnd
+
–
+
–
+
–
P1
JP1
Input Total Pulse Signal
Pulse
Mag
JP2
OC
Iso
JP3
High
Low
TB1
P2
P1
P1
TB1
Gnd
Setpoint 2
Setpoint 1
RS485 Gnd
TR_A
TR_B
3.6Vdc
Battery
+
–
Iso Total Pluse
Total Pulse
Input
JP1
Freq. In
4-20mA
Total Reset
OC Total Pluse
Signal Gnd
ISO OC
JP3
MagPulse
TB2
+
10…28 VDC
–
+
–
4-20 mA
Current Loop
(10…28V DC)
+
–
Load
Figure 9: Loop power connections (NEMA 4X)Figure 10: Loop power connections (Ex-Proof)
CAUTION
GROUNDING FOR THE EXPLOSION PROOF ENCLOSURE IS NECESSARY. THE EXPLOSION PROOF ENCLOSURE IS
PROVIDED WITH A GROUNDING SCREW ON THE INSIDE OF THE ENCLOSURE. THE CONDUCTOR USED FOR GROUNDING
MUST BE OF A WIRE GAGE EQUAL TO OR GREATER THAN THE SIGNAL WIRES BEING USED. SEE FIGURE 11.
The explosion proof enclosure is provided with a grounding screw on the inside of the enclosure. The conductor used for
grounding must be of a wire gage equal to or greater than the signal wires being used.
To Earth Ground
Figure 11: Required grounding for Ex-proof enclosure
Page 12 March 2014
Programming Manual
Solar
A solar cell mounted on the top of the monitor in the B30S charges an internal 3.6V DC nickel-cadmium battery that powers
the monitor. A fully charged battery powers the monitor for approximately 30 days. The solar powered B3000 has a single
totalizing pulse output and cannot be powered by a 4-20 mA loop.
Solar Cell
2
1
Figure 12: Solar powered B3000
Page 13 March 2014
Compact Digital Flow Monitor, Model B3000
OPERATING THE MONITOR
The monitor has three modes of operation referred to as the Run, Programming, and Extended Programmingmodes.
Communications
Indicator
Rate
Alarm
Activation
2
1
Battery
Indicator
Rate
Units
Totalizer
Multiplier
Total
Totalizer
Units
Figure 13: Display annunciators
To access the program mode, momentarily press and then release MENU until the first programming screen is displayed. The
extended programming mode is entered by pressing and holding MENU until the first programming option appears. After
programming the display with the necessary information, a lock out feature is available to prevent unauthorized access or
changing of the meter’s setup parameters.
Programming Mode
COM
1
2
Figure 14: Keypad detail
Menu
Up
Enter
S1
12
S3
S4
1 2
COM
1
Down
S2
J1
Page 14 March 2014
Programming Manual
Buttons
MENU – Switches between normal running and programming modes.
UP Arrow (▲) – In programming mode scrolls forward through the parameter choices and increments
numeric variables.
RIGHTArrow (►) – In programming mode scrolls backward through the parameter choices and moves the active
digit to the right.
ENTER – Used to save programming information, advance to the next programming parameter, and in the
reset process.
TOTAL FLOW RESET – This touch sensor button allows the total to be reset without opening up the case. This button
pertains to the explosion proof version only.
OTE:NThe “through the glass” touch sensor button is currently under development in the explosion proof version
of the B3000.
Special Functions
MENU + ENTER – Simultaneously press and hold to reset the current totalizer.
MENU - Press and hold menu for three seconds to enter extended programming mode.
UP Arrow (▲) + Right Arrow (►) – Simultaneously press and hold to show the firmware version number, then the
grand total.
UP Arrow (▲) – In run mode increases display contrast.
RIGHT Arrow (►) – In run mode decreases display contrast.
Modes
RUN – Normal operating mode.
PROGRAM – Used to program variables into the display.
EXTENDED PROGRAM – Used to program advanced variables into the display.
TEST – Used as a diagnostic tool to show input frequency and totalizer counts.
If your monitor was ordered with a Blancett flow meter, the two components ship from the factory configured as a set. If the
monitor is a replacement, the turbine’s K factor changed, or the monitor is used with some other pulse generating device;
programming is necessary.
Page 15 March 2014
Compact Digital Flow Monitor, Model B3000
Programming Using Frequency Output Turbine Flow Meters
Each Blancett turbine flow meter is shipped with either a K factor value or frequency data. If frequency data is provided, the
data must be converted to a K factor before programming the monitor. K factor information, when supplied, can usually be
found on the neck of the flow meter or stamped on the flow meter body. The K factor represents the number of pulses per
unit of volume (see K FACTORS EXPLAINED on page 38). The K factor is required to program the monitor.
Essentials
The B3000 monitor is engineered to provide several levels of programming tailored to the needs of the user. The first or
standard level provides access to the most commonly used setup parameters bypassing the more advanced settings. The first
level programming is entered by pressing and holding MENU for about one second.
The second level or extended settings are accessed by pressing and holding MENU until the extended programming
menu starts.
With the standard and solar liquid monitors there is a third level. For the most basic unit setup choices the B3000 monitor
employes a simple and advanced setup option accessed through the Rate SU parameter. If Simple is selected the rate and total
choices are reduced to the five most common combinations avoiding the need to make unit and interval choices.
Liquid MetersStandardSolarAdvanced I/O
Basic FunctionsPress MENU for about one second and then release.
Extended FunctionsPress and hold MENU until the extended programming menu starts.
Simple SetupSelect Rate SU in the extended functions and choose Simple.
Advanced SetupSelect Rate SU in the extended functions and choose Advanced.
Table 1: Display mode selection information
Not Applicable
Enter Programming Mode
The programming modes are accessed by pressing MENU for basic functions. Extended functions are accessed by pressing
and holding MENU until the first programming parameter appears.
Battery
Indicator
Units
Indicator
Totalizer
Multiplier
Numeric
Values
Function
Figure 15: Programming mode display
2
1
Totalizer
Units
Page 16 March 2014
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