KEP MINItrol-S Data sheet

MINITROL-S

Features

• Separate Scaling Factors For Rate & Total

• Display Rate & Total

• 30mV Magnetic Pickup Inputs (optional)

• Count Inhibit Input for Meter Proving

Totalizer/Ratemeter with
Separate Scaling of Rate/Total

• Security Lockout

• RS422/RS232 Serial Communication (optional)

• NEMA 4X / IP65 Front Panel

• 4-20mA or 0-20mA Analog Output (optional)

• CSA Listed

DESCRIPTION:

The totalizer and ratemeter display each have their own 5 digit
dividing scale factor. The two 5 AMP preset relay outputs can be
programmed by the user to apply to the “A” total counter or the
“A” ratemeter. The user can view the rate, total and grand total.
The B relay can be used to create a scaled pulse output. Magnetic
pickup input, analog output and RS232 communication options
are available.

SPECIFICATIONS:
DISPLAY: 6 digit, 0.55" High LED
INPUT POWER:

110 VAC ± 15% or 12 to 15 VDC
220 VAC ± 15% or 12 to 15 VDC
24 VAC ± 15% or 12 to 15 VDC

CURRENT: 250 mA DC max. or 6.5 VA (6.5W) AC
OUTPUT POWER (AC powered units only)

+12 VDC @ 50 mA, unregulated -10 + 50%

TEMPERATURE:

Operating: +32°F (0°C) to +130 F (+54°C)
Storage: -40 F (-40°C) to +200°F (93°C)

MEMORY: EEPROM stores data for 10 years if power is lost.
INPUTS:

3: High Impedance DC pulse input 4-30 VDC (high), Open or

0-1 VDC (low),10 KΩ imp. 10 kHz max. speed.

3M: Mag. Input, Rate/total input only, accepts 30mV input (50 V

max. P/P) signals 10 KΩ imp. 5 kHz max. (Inhibit input,

4-30V)
NOTE: The Mag. input has filtering as follows: 30mV trigger
level up to 300Hz , 0.25 V trigger level at 5KHz

RESET:

Front Panel: Resets displayed total value and control output.
Remote: 4-30 VDC (75-240 V AC/DC, Input 8) negative

edge resets the A total and relay control output.

NOTE: The remote reset does not reset the grand total.

LISTING: CSA (File No. LR91109), CE Compliant ,

NRTL/C pending

K FACTOR/SCALING:

The K-Factors are used to convert the input pulses to
engineering units. The 5 digit K-Factor dividers, with decimal
keyed into any position, allow easy direct entry of any K­Factor from 0.0001 to 99999. Separate factors may be
entered for rate and total permitting rate display to be in a
different unit of measure than the total.

RATEMETERS/TOTALIZERS

Flow Instruments

CONTROL OUTPUTS:

Relays:

2 each N.O. Relay; 5 Amps, 120/240 VAC or 28 VDC. (N.C.
relay contacts and NPN transistor output available via solder
jumpers.

Analog Output:

An optional 4-20mA (0-20mA) output is available for the
Minitrol series. The output can be programmed to track rate
or total. This feature is available by adding suffix A to the
part number. Connections are via a 2 terminal pluggable
screw connector. Programming is accomplished by using
the front panel in conjunction with rear dip switches.
Accuracy: ± 0.25% FS
Compliance Voltage: 3 to 30 VDC non inductive.

RS232/RS422

If the serial interface option is supplied, multiple units can be
linked together. (The terminal addressing the unit must be
capable of driving all loads in the loop.) Unit status and new
set points can be communicated by serial communication.
Mode changes, however, must always be made on the front
panel.
Data is received and transmitted over standard EIA RS232
or RS422 levels. Unit number, baud rate and parity are
entered in the “Program Setting” set up mode and remain in
memory even if power is off.

RS232/RS422/RS485 with Modbus RTU Protocol:

The serial port can be used for serial printing or also for data
acquisition. The unit can assign addresses up to 247 units
(The terminal addressing the unit must be capable of driving
all loads in the loop.) The unit can communicate with a master
device through a Modbus-RTU protocol. The data given for
each parameter is in IEEE float format comprising of 2 words.
The unit can be connected in a network.
Device ID: 01-247
Baud Rates: 300, 600, 1200, 2400, 4800, 9600
Parity: None, Odd, Even
Protocol: Modbus RTU (Half Duplex)

PRESETS:

Two control outputs are provided. To set relay A or B's
functionality, press “menu” button until “Relay” appears on
the display, the A and B outputs can be assigned to the rate
alarm (high/low), or for total/grand total. A 5 digit value can
be entered for both presets A and B. The decimal point
location is the same as the counter. The outputs can be set
to energize from 0.1 to 99.9 seconds or latch (0.0). If a value
other than 0.0 is entered, the corresponding totalizer will auto
reset at the preset. This may be used to create a relay scaled
pulse output.

Kessler-Ellis Products • 800-631-2165 F-15 • Flow Instruments • Page 49

LOCKOUT:

Unauthorized front panel changes can be prevented by
entering a user selected 5 digit code, in the “LOC" mode.
The front panel can be completely locked out or the presets
can remain accessible.

RATEMETER

Accurate to 4 1/2 digits (±1 display digit). The rate meter can
be programmed to:

• accept almost any number of pulses per unit of
measurement

• determine rate for slow pulsing signals (up to 24 sec).

• auto-range up to 5 digits of significant information.

The display can be programmed to read in units per Second
(

sec

), Minute (

min

TOTALIZER:

The two 6-digit totalizers can count at 10kHz speed. They
share a 5-digit dividing scale factor. The totalizer advances
on the positive edge of each pulse.

TYPICAL SENSOR HOOKUP:

Flow Instruments

High Level Pulse

), Hour (

hour

), or Day (

day

Dimensions:

3.925
(99.7)

4.437

(112.7)

).

2.625

(66.68)

4.245

0.587

(14.91)

(107.8)

RATEMETERS/TOTALIZERS

Flowmeter

RELAYS

A

B

1 COMMON

2 N.O. (N.C./NPN)

3 COMMON

OUTPUT
POWER
GROUND

4 N.O. (N.C./NPN)

5 A INPUT

6INHIBIT TOTAL INPUT

*

* PULLUP RESISTOR REQUIRED FOR
OPEN COLLECTOR OUTPUTS

4.7KΩ TYPICAL

Low Level Pulse (Mag Pickup)

RELAYS

A

B

1 COMMON

2 N.O. (N.C./NPN)

3 COMMON

4 N.O. (N.C./NPN)

SIGNAL
GROUND

Flowmeter

with Mag. Pickup

7 12 V OUTPUT/ + DC INPUT

8 - DC (GROUND)

9 RESET INPUT

10 NOT USED

11 AC INPUT

12 AC INPUT

5 A INPUT

6INHIBIT TOTAL INPUT

7 12 V OUTPUT/ + DC INPUT

8 - DC (GROUND)

9 RESET INPUT

10 NOT USED

11 AC INPUT

12 AC INPUT

CUSTOMER PANEL

BEZEL

GASKET

Panel Thickness 0.062" (1.5)
to 0.187" (4.7) max.

3.622
(92)

1.772
(45)

Ordering Information

Example: MRTS A 3 1
Series:

MRTS=6 digit counter / 5 digit ratemeter

with presets and scaling.

Operating Voltage:

A= 110 VAC ± 15% or 12 to 15 VDC
B= 220 VAC ± 15% or 12 to 15 VDC
C= 24 VAC ± 15% or 12 to 15 VDC

Count Inputs:

3 = Standard, 4-30 VDC simultaneous inputs.
3M = Mag. Input, rate/total input only, 30mV input

(Inhibit input, 4-30V)

Options

1= RS232 Communications
2= RS422 Communications

3= Modbus RTU RS232
4= Modbus RTU RS422/RS485

A= Analog Output (4-20/0-20 mA)

NOTE: RS232/RS422/RS485 & Analog Output options can not be

combined

Accessories

Separate non keyboard panel order #34235
Separate keyboard panel - order #34234
NEMA4 wall mount enclosure available, see NEMAtrol
Explosion proof enclosure available, see XHV
Serial printer available, see P1000, P295
Ethernet Port Server available, see IEPS
RS-422/485 to RS-232 Communication Adaptor available, see CA285
Modbus DDE/OPC Server available, see KEPserver

Page 50 • Flow Instruments • F-15 Kessler-Ellis Products • 800-631-2165