42213 Sarah Way, Temecula, CA 92590,
Tel: 800-854-8530 (USA)
Micro Series Dual-Channel
Up/Down Totalizer & Rate Meter
With two independently scalable channels &
- Available in three digit heights:
0.56" for panel mounting,
5.0" (Mighty-5) for
- Independent, scalable totals for
Channels A & B.
- Totals stored in non-volatile
- Inputs from NPN or PNP proximity
switches, contact closures, digital logic,
magnetic pickups down to 12 mV, or AC inputs up
to 250 Vac.
- Up counting from zero to preset
value using positive scale factor.
- Down counting from preset to zero
using negative scale factor.
- Data rates up to
- Isolated 5, 10 or 24 Vdc
excitation supply to power sensors.
- Green or red LED display.
- Choice of isolated plug-in
options for control and computer interface:
4-20 mA & 0-10
V analog output,
RS232/485 serial I/O,
low voltage AC & DC power.
version environmentally sealed to NEMA-4X from front panel.
- 1/8 DIN
version certified to UL 3101-1, CAN/CSA-C22.2,
EN 61010-1 (CE Mark).
of the Standard Counter, plus:
- Channel A total and Channel B
- Up/down counting on Channel A,
using Channel B to control count direction.
- Counting on Channel A, using
Channel B to inhibit counting.
- Arithmetic functions A+B, A-B,
Micro dual-channel up or down totalizer is a basic operating mode of the
Micro counter with the FR dual-channel signal conditioner board.
Each channel (A or B) may be independently set
up and scaled to count up from zero (or other value) to a preset limit, or to count down
from a preset value to zero (or other limit). Countdown operation is set up by entering a
negative scale factor.
The six-digit counter display is capable of
displaying any value from -999,999 to 999,999 with programmable decimal point. Scaling
allows direct readout in engineering units, such as gallons or cubic feet based on counts
from a turbine flowmeter, or the count of cans based on the count of six-packs. The
displayed channel (A or B) is selected via a front panel pushbutton. The totals are stored
in non-volatile memory so as to be retained in the absence of power.
The minimum recommended complementary option
for the Micro totalizer is the dual setpoint controller output board, which is
available with either 8A relays or AC/DC solid state relays.
An optional Extended
counter version provides capabilities beyond those of the standard counter:
Rate and total simultaneously. Channel
A can display total while Channel B displays rate. The selection of A or B for display is
via a front panel pushbutton. This mode is ideal for flow applications.
Up/down counting. Channel A
can serve as an up/down counter, where the count direction is dynamically changed by
applying a signal to Channel B. For instance, Channel A can count and scale pulses from a
turbine flowmeter, while Channel B inputs the direction of flow. This allows total volume
to be tracked in case of reversible flow.
Totalizing with external inhibit. Totalizing
by Channel A can be temporarily inhibited by applying a signal to Channel B. For instance,
60 Hz AC pulses can be counted by Channel A and be scaled to display elapsed hours. A
signal can be applied to Channel B to start or stop pulse counting when a process is in
Exceptionally accurate custom curve linearization is achievable, for
linearize the low end of turbine flowmeters. For setup, up to 240 data points can be
input into a spreadsheet or text file by the user. The computer then calculates
spline fit segments, which are downloaded into the meter via RS232. The linearized rate can then be
totalized by the Extended counter.
Arithmetic functions. The
Extended counter makes arithmetic functions available, namely A+B, A-B, A*B, A/B and
A/B-1. These solve many applications. For instance, A+B allows two input flows to be
summed for total volume, while A-B allows outflow to be subtracted from inflow for net
volume. A/B allows the mixing of ingredients in a specified ratio. By monitoring and
alarming the A/B volume ratio, ingredient B can be added to A until the proper ratio is
Universal Signal Conditioner
The dual-channel signal
conditioner accepts inputs from proximity switches with PNP or NPN output, TTL or CMOS
logic, magnetic pickups, contact closures, low-level outputs from turbine flow meters down
to 12 mV, and high-level AC line inputs up to 250 Vac. Jumper
selections provide optimum operation for different sensor types and noise
A built-in isolated 5, 10, or 24 Vdc
excitation supply can power proximity switches and other sensors, and eliminate the need
for an external power supply.
output, dual relay controller,
serial communication boards can
upgrade Micro and Mighty Series totalizer from a stand-alone monitor to system interface and control. The
ability of the Micro Series totalizer to output an isolated 4-20 mA signal which tracks a total may be
unique among totalizers.
meters can be powered from
95-240 Vac ±10% and 95-370 Vdc, or
optionally from 12-34 Vac and 10-48 Vdc.
Any setup functions and front panel keys may be locked out for
simplified usage and security. The popular
DIN version with 0.56" high digits is environmentally sealed to
NEMA-4X (IP65) from the front when panel mounted, and is
available with red or green LEDs.
6 digits, 7-segment
Available with 0.56", 1.0", 4.0" or 5.0" digits.
High brightness red. Green available with 0.56" digits.
-999999 to +999999,
XXXXEX scientific notation beyond 999999
Four LED lamps
Channel A Frequency
Channel B Frequency
pulses from NPN, PNP transistors, contact closures, magnetic pickups
Common ground for channels A & B
0 Hz to 1 MHz
0 Hz to 250 kHz
-12 mV to +12 mV, +30 mV to +60 mV, -30 mV to -20 mV,
-150 mV to +150 mV, +350 mV to +600 mV, -600 mV to -350 mV,
-1.15 V to +1.15 V, +1.25 V to +2.1 V, -2.1 V to -1.25 V
Selectable: 1 MHz, 30 kHz, 250 Hz
Selectable: 0, 3, 50 ms
95-240 Vac ±10% and 95-370 Vdc
12-34 Vac and 10-48 Vdc
DC or 49-440 Hz
Safety-rated to 250 Vac, meter ground to earth ground,
DC to 60 Hz, 4.2 kVp per High Voltage Test
Vdc ±5%, 100 mA max
10 Vdc ±5%, 120 mA max
24 Vdc ±5%, 50 mA max
50 Vdc to meter ground
-40°C to 85°C
95% at 40°C, non-condensing
NEMA-4X (IP-65) when panel mounted
Up/down totalizing is provided by a mode
of the Extended counter where pulses are either added or subtracted on Channel A based on
a direction input on Channel B. The counter can also be programmed so that counting by
Channel A is inhibited by an input on Channel B.
Combining Two Totals
A+B, A-B and A/B arithmetic functions are
available with the Extended counter. A+B sums both totals, while A-B subtracts the outflow
total from inflow total. The A/B ratio applied to total helps assure the proper mixing of
Up or Down Counting with Preset
A single Micro dual-channel counter
will handle two repetitive fill operations by counting from zero up to a preset, or down
from a preset to zero. A dual setpoint relay board is required.
Machine ON Time and Utilization
An easy way to measure the ON time of
machines is to count AC line cycles and scale the total to hours. To display machine
utilization or duty cycle in percent, use the Extended counter. Connect Channel A to
switched AC and Channel B to the AC line, and have the counter display the A/B ratio with
a 100 multiplier.
Total and Rate Simultaneously
The Extended version of the
channel counter can display scaled rate or total for the same channel at the push of a
button, and alarm both the rate and total. The Extended version can also do
curve linearization, thereby extending the working range and accuracy of flow
The Micro Series dual-channel totalizer can
independently scale, display and alarm two totals, and the totals plus alarm data can be
transmitted via RS232 or RS485. The displayed totals can also be transmitted as
a scaled 4-20 mA analog output. The Extended version can further display
and transmit arithmetic combinations of the two totals.
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