KEP BAT D-T-M Operating Manual
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2
Theory of Operation
Wiring
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4
Typical Applications
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6
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Analog Output Calibration
Warranty
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Apendix A: Modbus RTU Protocol
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* Slow input pulse rates, large delay setting and internal math
operations may delay the update rate of information.
4-20mA output proportional to the computed rate. The BATDT-M
Specifi cations
Supplied with 1 or 2 C size Lithium battery pack.
Voltage: 8.5 to 30 VDC
Current: Less than 5 mA
Supplied with 1 C size lithium battery
Protection: Reverse Polarity Protection on DC Power Input
Voltage: 8.5 to 30 VDC
Supplied with 1 or 2 C size lithium battery(ies)
Protection: Reverse Polarity Protection on Current Loop
Loop Burden: 8.5V maximum
tions at equipment duty cycles
Idle 2hrs/day 8hrs/day 24hrs/day
standby-operation
Battery shelf life is rated at 10 years by manufacturer
Life expectancy based on rated battery capacity at 20°C
The above table is shown with pulse output inactive. Use
of pulse output shortens battery life.
Example: A pulse output of 0.06 sec. duration, once per
second, would derate the battery life by 20%.
5 Digits (99999), 0.35" High, Display updates once per second
with battery power, 8X per second with DC or Loop power
8 Digits (99999999), 0.2" High
Totalizer Descriptors: GAL, LIT, FT3, M3, "blank"
GAL, BBL, MCF, M3, "blank" with "D"
option
Warning Displays: Low battery warning
The pulse output advances with the least signifi cant digit of the
totalizer or decimal multiples there of (see Pulse scale divider).
Type: Isolated photomos relay
Max. voltage (off state): 30 VDC
Current (on state): 100mA
Pulse Duration: Selectable 0.5, 0.25, 0.125, 0.0625 seconds
Pulse Scale divider (Pulscale): User selectable, ÷1, ÷10, ÷100
or OFF
NOTE: Select OFF for max. battery life.
ACCURACY
0.01% Reading, ±1 count
Temperature Drift: 50 ppm/°C Worst Case
-4°F (-20°C) to + 158°F (70°C)
Extended Temp: -22°F (-30°C) to + 158°F (70°C)
0 - 90% Noncondensing
0
- Circuit Board- OEM option (consult factory)
- Panel Mount - NEMA 4X Front
- Wall Mount - NEMA 4X Enclosure
(keypad mounted behind clear cover)
3
- Explosion Proof - Class I, Division I, Groups B, C & D
Class II, Division I, Groups E, F & G
5
- Wall Mount - NEMA 4X Enclosure
(keypad mounted on cover)
6
- Double Ended Explosion Proof -
Class I, Division I, Groups B, C & D
Class II, Division I, Groups E, F & G
(contact factory for details)
Meter mounting kits available for styles 2, 3 and 5
Consult factory for additional information.
Frequency Range: 0 to 3500 Hz
Trigger Sensitivity: 10 mV p-p
Over Voltage Protected: ± 30 VDC
High (logic 1): 4-30 VDC
Low (logic 0): Less Than 1 VDC
Minimum Current: .5 mA
Hysteresis: 0.4 VDC
Frequency Range: 0 to 5 kHz
Min. Pulse Width: 0.1 msec
Internal Pullup Resistor: 100 KΩ to +3.6 VDC
High (logic 1): Open or 4-30 VDC
Low (logic 0): Less Than .5 VDC
Internal Switch Debounce Filter: 0 to 40 Hz
battery life.
Internal Pullup Resistor: 100 KΩ to +3.6 VDC
High (logic 1): Open or 4-30 VDC
Low (logic 0): Less Than .5 VDC
Minimum On : 25 msec
battery life.
Range: 0.001 to 99999999
Decimal Point Locations: XXXX.XXXX to XXXXXXXX
20 Point Linearization Option
This feature allows the user to enter 20 different frequencies
with 20 different corresponding K-Factors to linearize non linear
signals.
ANALOG OUTPUT OPTION:
Type: 4-20 mA follows rate computation, Two wire hookup
Accuracy: 0.025% Full Scale at 20° C
Temperature Drift: 50 ppm/°C Typical
Reverse Polarity Protected
Update Rate: 8 times/second
The BATDT-M uses the 4-20 mA loop power as its primary
and
access a variety of process parameters. The Data Logger
stores the totalizer to fl ash memory once every 24 hours at
the time you set. The data logger can hold 24 days of totals,
on the 25th day the oldest total in the logger is dropped. Re-
quires external DC power: 6-28VDC (input is reverse polarity
Current Draw:
Receiving: 2 mA
Transmitting: 125 mA (instantaneous peak)
Setup Information: Stored in fl ash memory
Totalizer: Stored in battery backed RAM but can be saved to
fl ash memory by operator for recall after battery change out.
Idle 2hrs/day 8hrs/day 24hrs/day
standby-operation
BATTERY INSTALLATION and REPLACEMENT
All BATDT-M models are shipped without the battery(ies) installed. This preserves battery life when the unit is not
To install the battery, begin by locating the battery holder. The BATDT-M-2, 3 and 5 require opening the enclosure
cover and removing the BATDT-M to expose the battery holder.
The plus terminal of the battery is marked with a (+) symbol stamped into the battery holder. Be sure to install the
The BATDT-M has a battery monitor feature which illuminates when the lithium battery voltage approaches its end
of life. A descriptor, “BAT”, illuminates when the battery voltage falls below this predetermined value. The low bat-
tery detector operates correctly with all power options.
The battery, or batteries, should be replaced within several weeks of the fi rst occurrence of low battery warning,
(left arrow) key to save the totalizer. The display will show "
If the display starts to fl ash after the "
to fl ash memory. At this point you must record the totalizer and setup information and re-enter the setup data after
the new battery(ies) is(are) installed.
6 5 4 3 2 1
Rear View
Battery
789101112
BATPACK
Connector
Jumper momentarily to reset unit to factory default values.
4.92
(125)
4.33
(110)
4.33 (110)
#8 Screw Mounting holes molded directly under cover
screws. Max. screw head .29" (Typ. 4 places)
E
M
.98
(25)
1.97
(50)
.18(5)
.43
(11)
BOTTOM VIEW
To access terminals, remove cover
and 4 panel screws. Terminals are
on bottom side of PC board.
Panel Screws
4.92(125)
TOP VIEW (PANEL INSTALLED)
Optional HF2, HF3
Hub Fitting
Optional H2, H3
Hub Holes
5.10
(130)
4.45
(113)
4.45 (113)
#8 Screw Mounting holes molded directly under cover
screws. Max. screw head .29" (Typ. 4 places)
E
M
1.1
(28)
1.97
(50)
.18(5)
BOTTOM VIEW
5.10(130)
TOP VIEW (PANEL INSTALLED)
Optional HF2, HF3
Hub Fitting
Optional H2, H3
Hub Holes
.36
(9.2)
To access terminals, remove cover.
Terminals are on bottom side of PC board.
4.63
(117)
3/4 NPT
(2) HLS
5.00
(127)
5/16
4.25
(108)
5.25
(133)
E
M
5.00
(127)
To access terminals, unscrew cover and loosen 2 panel screws.
Terminals are on bottom side of PC board.
Optional 3rd
Conduit Entry
3.062" (77.77)
Dia. Cutout
3.582" Dia. Bolt Circle
.125" Holes to be 120
° Apart
Outside Dotted Line Shows
Outside Panel Dimension
(4.00" Diameter)
120°
.10
(2.54)
4.00
(101.6)
1.7
(43)
2.875
(73)
Panel
Cutout
E
M
3.0120 DIAMETER
.900
(22.8)
.992
(25.2)
Mounting holes
.125 Drill (2 places)
.438 Nylon Spacer
Supplied
1.8
(46)
2.875
(73)
.10
(2.5)
.438
(11.1)
.900
(22.8)
.992
(25.2)
2.40
(61)
2.20 (56)
0.95 (24)
0.30 max. (7.6)
0.15 (3.8)
Battery
Mounting Hole
0.125 (3) dia.
BATPACK
5.5"
2.375"
5.375"
2.25"
5.625"
Additional conduit entries available upon request.
Additional conduit entries available upon request.
BATDT-M-2
BATDT-M-0
BATDT-M-1
BATDT-M-3
BATDT-M-5
BATDT-M-6
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