Kimray BK2900 Series Owner's manual

LIQUID FLOW METER MONITOR
BK2900

Compact Digital Flow Monitor, Model BK2900
Page ii March 2016

User Manual
Page iiiMarch 2016
CONTENTS
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Scope of This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Terminology and Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connecting the BK2900 Monitor to a Frequency Output Device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Operating The Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Programming Using Frequency Output Turbine Flow Meters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Enter Programming Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Liquid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Gas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Return to Run Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Troubleshooting Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Default K-Factor Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Menu Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
K-Factors Explained . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Calculating K-factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Modbus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Modbus Register / Word Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Mounting Options and Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Meter Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Remote Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Swivel Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Compact Digital Flow Monitor, Model BK2900
Page iv March 2016

Introduction
Page 5March 2016
INTRODUCTION
The BK2900 flow monitor incorporates state-of-the-art, digital signal processing technology, designed to provide exceptional
flexibility at a very affordable price. Though designed for use with Kimray flow sensors, this monitor can be used with almost
any flow sensor producing a low amplitude AC output or contact closure signal.
This monitor can accept low-level frequency input signals typically found in turbine flow
sensors. The output signal for these types of sensors is a frequency proportional to the rate of flow. The BK2900 monitor uses
the frequency information to calculate flow rate and total flow. Through the use of the programming buttons, you can select
rate units, total units and unit time intervals among other functions. All BK2900 flow monitors come pre-configured from the
factory, when ordered with a Kimray flow sensor. If required, the monitor can easily be re-configured in the field. Finally, you
can choose between simultaneously showing rate and total, or alternating between rate and grand total.
The package is a polycarbonate NEMA 4X enclosure.
BK2900 SERIES FLOW MONITORING SYSTEM
TOTAL FLOW RESET
405-525-6601 www.kimray.com
Kimray BK2900 Keypad.pdf 1 3/9/16 4:48 PM
Figure 24: BK2900 Flow monitor (NEMA 4X)

Scope of This Manual
Page 6 March 2016
SCOPE OF THIS MANUAL
This manual is intended to help you get the BK2900 flow monitor up and running quickly.
MPORTANTI
Read this manual carefully before attempting any installation or operation. Keep the manual accessible for future reference.
UNPACKING AND INSPECTION
Upon opening the shipping container, visually inspect the product and applicable accessories for any physical damage such
as scratches, loose or broken parts, or any other sign of damage that may have occurred during shipment.
OTE:N If damage is found, request an inspection by the carrier’s agent within 48 hours of delivery and file a claim with the
carrier. A claim for equipment damage in transit is the sole responsibility of the purchaser.
SAFETY
Terminology and Symbols
Indicates a hazardous situation, which, if not avoided, is estimated to be capable of causing death or
serious personal injury.
Indicates a hazardous situation, which, if not avoided, could result in severe personal injury or death.
Indicates a hazardous situation, which, if not avoided, is estimated to be capable of causing minor or
moderate personal injury or damage to property.
Considerations
The installation of the BK2900 monitor must comply with all applicable federal, state, and local rules, regulations, and codes.
EXPLOSION HAZARD - SUBSTITUTION OF COMPONENTS MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION 2.
AVERTISSMENT
RISQUE D’EXPLOSION - LA SUBSTITUTION DE COMPOSANTS PEUT RENDRE CEMATÉRIEL INACCCEPTABLE POUR LES
EMPLACEMENTS DE CLASSE I, DIVISION 2.
DO NOT CONNECT OR DISCONNECT EITHER POWER OR OUTPUTS UNLESS THE AREA IS KNOWN TO BE NON-
HAZARDOUS.
AVERTISSMENT
RISQUE D’EXPLOSION. NE PAS DÉBRANCHER TANT QUE LE CIRCUIT EST SOUSTENSION, À MOINS QU’LL NE S’AGISSE
D’UN EMPLACEMENT NON DANGEREUX.
MPORTANTI
Not following instructions properly may impair safety of equipment and/or personnel.
Electrical Symbols
Function Direct
Current
Alternating
Current
Earth
(Ground)
Protective
Ground
Chassis
Ground
Symbol

Installation
Page 7March 2016
INSTALLATION
Connecting the BK2900 Monitor to a Frequency Output Device
The BK2900 monitor has two jumpers for setting the type of signal and the minimum amplitude of the signal that it accepts.
First, establish the type of output provided by the flow sensor. The outputs almost always fall into one of two types.
• Type 1 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 is 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, you must also determine the minimum amplitude of the frequency output. The
BK2900 monitor has a high or low signal sensitivity setting. Use the high signal sensitivity (30 mV) with low amplitude (usually
small) turbine flow sensors. Use the low signal sensitivity setting (60 mV) for larger turbines and amplified transducers (see
Figure 2).
OTE:N Use the high signal sensitivity setting where the minimum signal amplitude is below 60 mV. Setting the sensitivity
higher than necessary may allow noise interference.
JP1
JP2
JP3
Input Total Pulse Signal
TB1
Mag
Pulse
Iso
OC
Low
High
Input Waveform Selection
(Magnetic Pickup Selection Shown)
Input Signal Level Selection
(Low Signal Sensitivity (60 mV) Selection Shown)
Figure 1: Input jumper settings (NEMA 4X)
When the type of waveform and input signal level (amplitude) are determined, set the jumpers on the BK2900 monitor
circuit board.
For typical variable reluctance magnetic pickups, set the waveform selection jumper for Mag. Determine the setting for the
input level by 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 2).
If the minimum signal level is below 60 mV, use the high signal sensitivity jumper position.

Installation
Page 8 March 2016
JP1
JP2
JP3
Input Total Pulse Signal
P1
Freq. In
4-20mA
Iso TotalPluse
RS485 B (–)
RS485 A (+)
RS485 Gnd
Setpoint 1
Setpoint 2
Gnd
+
–
+
–
+
–
TotalReset
OC TotalPluse
Signal Gnd
TB1
Mag
Pulse
Iso
OC
Low
High
Mag
Pulse
JP1
Input
Figure 2: Typical magnetic pickup connection (NEMA 4X)
For amplified input signals, set the input jumper to Pulse and the signal jumper to Low (see Figure 4).
OTE:N Amplified magnetic pickups require an external power source. The BK2900 monitor does not supply power to an
amplified pickup.
JP1
JP2
JP3
Input Total Pulse Signal
P1
Freq. In
4-20mA
Iso TotalPluse
RS485 Gnd
Setpoint 1
Setpoint 2
Gnd
+
–
+
–
+
–
TotalReset
OC TotalPluse
Signal Gnd
TB1
Mag
Pulse
Iso
OC
Low
High
POWER
SUPPLY
Mag
Pulse
JP1
Input
RS485 B (–)
RS485 A (+)
Figure 3: Typical amplified pickup connection (NEMA 4X)

Power Connections
Page 9March 2016
POWER CONNECTIONS
Standard
The power supply used in the BK2900 monitor is an internal lithium 3.6V DC D cell that powers 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 5). 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.
JP1
JP2
JP3
Input Total Pulse Signal
P1
Freq. In
4-20mA
Iso Total Pluse
RS485 Gnd
Setpoint 1
Setpoint 2
Gnd
+
–
+
–
+
–
Total Reset
OC Total Pluse
Signal Gnd
TB1
Mag
Pulse
Iso
OC
Low
High
4…20 mA
Current Loop
(10…28V DC)
Load
10…28V DC
RS485 B (–)
RS485 A (+)
Figure 4: Loop power connections (NEMA 4X)

Operating The Monitor
Page 10 March 2016
OPERATING THE MONITOR
Buttons
BK2900 SERIES FLOW MONITORING SYSTEM
TOTAL FLOW RESET
405-525-6601 www.kimray.com
Kimray BK2900 Keypad.pdf 1 3/9/16 4:48 PM
Figure 5: Keypad detail
MENU Switches to PROGRAM mode, press and hold for three seconds to enter EXTENDED
PROGRAMMING mode, and is used in reset process
UP Scrolls forward through the parameter choices, increments numeric variables and
increases display contrast in RUN mode
RIGHT Scrolls backward through the parameter choices, moves the active digit to the right and
decreases display contrast in RUN mode
ENTER Saves programming information, advances to the next programming parameter, and is
used in the reset process
Special Functions
MENU + ENTER Simultaneously press and hold to reset the current totalizer
UP + RIGHT Simultaneously press and hold to show the firmware version number, then the grand total