Enhanced Functionality in a Compact, Explosion-Proof Enclosure

Optimizing liquid flow metering operations requires technology that provides critical data in real time. The new Daniel DRT-899 Pulse Input Rate/Totalizer offers the flexibility to easily view the flow rate or total along with the ability to toggle between user-selected values in an easy-to-read, wide angle display.

The unit can be custom configured with a 5-digit rate or total on the top line and a 7-character total or grand total along with the unit of measure on the bottom line. The device also allows for automatic K-factor unit conversions to eliminate the possibility of manual calculation errors.

The compact, explosion-proof enclosure and backlit display further enhance the device’s functionality. Four sensors on the face of the display allow for local programming and operation through the glass for safe use in hazardous environments. There is no need to remove the cover. In addition, a single lithium battery provides backup to ensure continuous, reliable performance.

Daniel DRT-899 Pulse Input Rate/Totalizer

Features and Benefits• Backlit, LCD display offers wide angle viewing and optimal

visibility in poorly lit areas • Programmable display allows for 5-digit rate or total on

the top line and user-selectable 7-character display on the bottom line for real-time access to critical flow data

• 13-digit totalizer with total overflow feature to accommodate high flow rate conditions

• Automatic rate, total and grand total unit conversions displayed by the volume and time units of choice

• Automatic K-factor unit conversions negate manual calculation errors

• Modbus® communications facilitate enterprise-wide distribution of flow rates and totals

• On-board data logging with retention of up to 1,024 time-stamped logs for accounting and auditing

• Explosion-proof, NEMA 4X enclosure allows for programming through the glass for safe operation in hazardous areas

• Password protection prevents unauthorized changes to settings

• Built-in mounting flanges for wall or pipe mounting simplify installation

• Power saving “sleep” mode extends lithium battery life for up to 7.5 years to ensure continuous operation

Serial Communications • 2-wire RS485 with Modbus RTU

• Baud rate: 1,200 to 115,200 bps in defined increments

Field Selectable Inputs• Pulse

• Sine wave

• Square wave

• TTL

• Open collector

• NPN

• Switch contact

Easily Program I/O and Communications including Modbus

Select from Two Daniel DRT-899 Rate/Totalizer Models

0.4" (10.2 mm) 7-Character

(Alphanumeric)

Rate/Total/Process Variable

Mounting Flanges (up to 2½" pipe)

Backlight Standard

0.7" (17.8 mm) 5-Digit

Menu Button

Reset or Right Arrow

Enter or Acknowledge Button

Max/Min or Up Arrow

Explosion-Proof Die-Cast Aluminum

NEMA 4X Enclosure

Three ¾" NPT Conduit Holes

Mechanical Buttons(4 places)

Password ProtectionAlarm Indicator

Engineering Units, Total, Rate & More

¾" NPT Flowmeter Connection

Total/Grand Total, Battery and Sleep Mode Icons

Transmitter Outputs• 4-20 mA

• 30 VDC maximum external power supply

Open Collector Outputs• Isolated, off; 24 VDC maximum; on: <1 V @ 150 mA maximum

• Pulse output K-factor programmable from 0.000001 to 9999999

DRT-899-BTA-I-DN with Modbus • 24 VDC powered with battery back-up

• Loop output powered backlight

• Isolated 4-20 mA output and two pulse outputs

• Isolated RS-485 with Modbus protocol enabled

DRT-899-DTB-0-DN • 4-20 mA powered with battery back-up

• Loop output powered backlight

• Non-isolated 4-20 mA output and two pulse outputs

Two Daniel DRT-899 models are available to fulfill power, output and communication requirements, including Modbus. The Modbus protocol-enabled model allows all parameters to be

accessed remotely for programming or verification and provides enterprise-wide access for up to 1,024 data logs to simplify accounting and auditing.

Comply with Industry Standards

Confirm Material Specifications and Dimensions

Ensure Measurement Accuracy with Automatic K-factor Unit Conversions

Electrical• CSA: Class I, Div 1, Groups B, C and D; Class II, Div 1, Groups E, F

and G, Class III, Div 1

• FM: Class I, Div 1, Groups B, C and D; Class II, Div 1, Groups E, F and G; Class III, Div 1

• ATEX: Ex d IIC T6 Gb (Sira 10ATEX1116X)

• IECEx: Ex d IIC T6 Gb (IECEx SIR 10.0056X)

Display: • Top Line: Five digits (0 to 99,999), 17.8 mm (0.7 in) tall,

7-segment, automatic lead zero blanking

• Bottom Line: Seven characters, 10.2 mm (0.4 in) tall, 14-segment, automatic lead zero blanking

• Symbols: Total, grand total, battery power/low battery, high and low alarm, password lock and sleep mode/disable

Backlight:• White LED, 10 second auto-off when battery powered

Battery:• 3.6 V primary lithium (Li-SOC12), non-rechargeable

Data Logging:• Up to 1,024 records, recorded 4 per day at specific times or

at defined time intervals

• Record contains date, time, rate, total, grand total and log number

Operating Temperature Range:• -40°C to +75 C̊ (-40°F to +167˚F)

Enclosure:• Explosion-proof die-cast aluminum with glass window,

NEMA 4X, 7 and 9, IP68

Weight:• 2.27 kg (5 lbs)

Total IndicatorFlow Rate Indicator Rate & Total Flow Rate Units

Environmental• NEMA 4X (IP68)

Following meter calibration, it is quick and easy to set up the DRT-899 rate/totalizer to display the rate and total of choice. Simply enter the defined K-factor and units of measure (i.e. pulses/gal, etc.). This step allows the meter to automatically convert the rate, total and grand total displays to any of 12 predefined units, including liters, gallons, imperial gallons,

barrels and hectoliters. Custom units can also be entered with a user-defined conversion factor. It is also necessary to program the rate time of choice (i.e. seconds, minutes, hours or days) and total multiplier of choice (i.e. x1, x100, x1,000 or x1,000,000) to prevent rollover. Once these settings are programmed, all calculations are automated with no additional math or conversion factors required.

85.1 mm (3.35 in)

57.1 mm (2.25 in)

85.0 mm(3.35 in)

123.5 mm(4.86 in)

8.2 mm(0.32 in)

143.5 mm(5.65 in)

133.4 mm (5.25 in)

Emerson Process ManagementDaniel Measurement and Control, Inc.www.Daniel.com

North America/Latin America:USA - Houston, TexasT +1.713.467.6000USA Toll Free 1.888.FLOW.001

Europe: Stirling, Scotland T +44.1786.433400

Middle East, Africa: Dubai, UAET +971.4.811.8100

Asia Pacific: Singapore T +65.6777.8211

©2016 Daniel Measurement and Control, Inc. All Rights Reserved. Unauthorized duplication in whole or in part is prohibited. DAN-DRT-899 Electronics for USM-BRCH-0316 /Printed in the USA.

Daniel Measurement and Control, Inc. (“Daniel”) is an Emerson Process Management business unit. The Emerson logo is a trademark and service mark of Emerson Electric Co. All other trademarks are the property of their respective companies.

Contact Us

Expedite Startup with DRT PRO Software

For additional details on the DRT-899 Pulse Input Rate/Totalizer, contact the nearest Daniel Sales and Service office.

Daniel DRT Pro Software expedites startup by enabling operators to quickly configure the DRT-899 Rate/Totalizer. The PC-based software offers an intuitive interface to streamline programming and enable custom configuration with no special skills required. Dropdown menus further simplify the process and prompt users to select the rate, total and/or grand

total to display along with preferred units of measure, time base, tags, toggle timing, alarm functions and more. The software also ensures the configuration can be easily saved for retrieval and copying to streamline installation of multiple DRT-899 units now or in the future.