Mass Technologies, Inc.

P.O. Box 173187

Arlington, TX 76003-3187

 

DM 3400
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DM3410 Temperature Inputs
DM3420 Process Inputs
Transmitter Excitation
NEMA 4 Front Panel Sealing
Plug & Play Option PODS
Modbus RS485 Serial Comms
Auto Scaling Mode

INTELLIGENT DIGITAL INDICATORS
DM3400 Series

INTRODUCTION
The DM3400 is a series of highly accurate and stable digital indicators.  The DM3410 and DM3411 are for Temperature indication, and the DM3420 and DM3421 for Process.

Designed without compromise, the DM3400 series uses leading edge technology to accept all commonly used temperature or process inputs.  Engineering units are displayed on a high efficiency Red (Green option) LED display that provides daylight readability.  The indicators can easily be used 'stand alone' or, using the Modbus serial communications option pod, as part of a larger system.

The display can be set to show a fixed number of decimal places and to auto scale to show the maximum resolution.  The highly innovative case design enables option 'Pods' to be easily installed without the need for dismantling or re-calibration.  A range of 'Plug and Play' Pods are available supply:

Relay outputs
Isolated 4 to 20 ma re-transmission
Modbus RS485 serial comms

The flexibility of plug-in option pods combined with the switch mode power supply results in reduced stock inventory and, in common with the other products from Status Instruments, a low 'cost of ownership'.

The instrument front panel is sealed to NEMA 4.  The mounting bezel of the case contains a molded-in rubber gasket.  This allows it to be sealed to the panel maintaining the NEMA 4 rating.

Tension clamp* two part connectors are provided for 'fast wiring' enabling installation to be completed in typically half the time it would take using conventional screw terminals.  These high quality connections are manufactured to IEC-947-1 and IEC947-7 standards and maintain the contact permanently under tension to also provide superior long-term performance in the presence of vibration.

* Alternative clamping yoke screw terminal connectors are available by special order.

SET UP
Programming is via the front panel keys following a logical menu structure which can be set to 'Short' (default), whereby only the common usage features are presented to the operator, or 'Full' where the full range of programmable features is available.  Alternatively it can be set up via a PC by using the RS485 (Pod-3000-05) Modbus communication pod.

MENU MODE
Two front panel programming menus can be selected as follows with the option of password protection.

..Feature ..Short Menu ..Full Menu
.Temperature Indicators
.DM3410
.DM3411 (green LED)
.Sensor type.
.Resolution
.Sensor type.
.Resolution
.ºC/ºF.
.Burnout condition.
.User offset.
.Filter time constant
.Process Indicators
.DM3420
.DM3421 (green LED)
.Input type.
.Resolution.
.Lo/Hi.
.Input type.
.Resolution.
.Lo/Hi.
.Burnout condition.
.Filter time constant
.Dual Alarm Relay
.Pod-3000/02
.Alarm type.
.Setpoint.
.Alarm type.
.Setpoint.
.Hysterisis.
.Latch.
.Invert.
.Isolated Re-Transmission
.Pod-3000/03
.Lo/Hi. .Lo/Hi.
.Output Span.
.Modbus Comms
.Pod-3000/05
.Device Number.
.Baud rate.
.Connections 2/4
.Device Number.
.Baud rate.
.Connections 2/4

SPECIFICATION @ 68 °F @ 24 VDC

DM3410 UNIVERSAL TEMPERATURE INDICATOR accepts all common thermocouple and RTD types and displays the temperature digitally.

.RTD (Pt100) .2 or 3 wire
.Sensor Range .-328 to +1562 °F [18-390 ohms]
.Linearization Standard .BS-EN60751 (IEC-751)
.BS1904 ( DIN43760)
.JISC 1604
.CUSTOM [X]*
.Basic Measurement Accuracy** .0.01% of full range input ±0.05% Reading
.Thermal Drift .Zero = 0.008 °F/°F
.Span = 50 ppm/°F
.Excitation Current .300 µA to 550 µA
.Maximum lead resistance .50 ohms/leg
.Lead resistance effect .0.004 °F/ohm

 

.THERMOCOUPLE
.Thermocouple Type Measuring Range °F
.TC Type K -328 to 2450
.TC Type J -328 to 2192
.TC Type T -346 to 752
.TC Type R 14 to 3200
.TC Type S 14 to 3200
.TC Type E -328 to 1832
.TC Type F (L) -148 to 1112
.TC Type N -292 to 2372
.TC Type [X]* ±9999
.Basic measurement accuracy** .±0.04% Full Range Input ±0.04% Reading
.or 1 °F (whichever is greater)
.Linearization .IEC 584-3 / BS 4937
.Cold Junction Error .±1 °F
.Cold Junction Tracking .0.05 °F/°F
.Cold Junction Range .-40 to +185 °F
.Thermal Drift .Zero = 0.05 µV/°F
.Span = 50 ppm/°F

 

.Notes for Input Specifications:
.*       
.**
Custom characterization is available pre-programmed at the factory.
Includes the effect of calibration, linearization and repeatability.

DM3420 PROCESS INDICATOR accepts all common process signals, current or voltage, and displays the signal digitally in engineering units.  An internal power supply provides excitation for field transmitters.

.PROCESS
.Voltage Range .0 to 1 volt
.0 to 5 volts
.0 to 10 volts
.Accuracy .0.05% full scale
.Thermal Drift .Zero = 0.05 µV/°F
.Span = 50 ppm/°F
.Current Range .0 to 20 ma
.4 to 20 ma
.0 to 10 ma
.Input Impedance .47 ohms (current)
.1 M ohm (voltage)
.Accuracy .0.05% full scale
.Thermal Drift .50 ppm/°F
.Excitation .24 VDC ±5% @ 50 mA

GENERAL SPECIFICATIONS

.Input/Output Isolation .500 VAC rms (galvanically isolated)
.Update time .250 ms maximum
.Time constant (filter off) .<1 second (to 63% of final value)
.Filter Factor Programmable: .Off, 2 seconds, 10 seconds or Adaptive
.Warm-up time .2 minutes to full accuracy
.Display range .-999 to 9999
.Power Supply .S1 = 90 to 253 VAC 50/60 Hz
.S2 = 20 to 35 VDC
.Power Consumption .6 VA max. (options fitted)
.DISPLAY
.4 Digit RED LED standard .0.56 in. high / high intensity
.4 Digit GREEN LED option .0.56 in. high / high intensity
.4 Alarm RED LED indicators .0.1 in. high, numeric

ENVIRONMENTAL

.Sealing to PANEL .NEMA 4, IP65
.Ambient operating range .-22 to +140 °F
.Ambient storage temperature .-58 to +185 °F
.Ambient humidity range .10 to 90% RH non condensing

APPROVALS

.EMC .Emissions .BS EN 50081-1
.Susceptibility .BS EN 50082-2
.ELECTRICAL SAFETY .BS EN 61010-1, UL (pending)

OUTPUT OPTIONS
Plug and Play Option Pods
Simple plug in pre-calibrated units, no dismantling or calibration

..Pod-3000/02  Dual relay Alarm
..
Two independent mains rated relay outputs (common connection)
.Contacts .2 x Changeover relays common wiper
.Ratings .AC .DC
.Maximum Load .5A @ 250 V .5A @ 30V
.Maximum Power .253 Watts .210 Watts
.Maximum Switching .253 Volts .125 Volts
.Electrical Life .100,000 operations at rated load
.Mechanical Life .50 million operations
.Termination
Standard... .5 way tension clamp connector
Optional... .Screw terminals

 

..Pod-3000/03  Isolated re-transmission
.Ranges .0 to 10 ma (Active or Passive)
.0 to 20 ma (Active or Passive)
.4 to 20 ma (Active or Passive)
.Minimum current output .0 ma
.Maximum current output .23 ma
.Accuracy .0.07% full scale
.Maximum Output load
.Active... .1 k ohm
.Passive... .[(V supply - 2) / 20] k ohms
.Maximum External Supply Voltage .30 V (Passive mode)
.Voltage effect .0.2 µA/V
.Ripple current .< 3 µA
.Isolation .500 VAC
.Stability .0.05 µA/°F
.Termination
Standard... .5 way tension clamp connector
Optional... .Screw terminals

COMMUNICATIONS

..Pod-3000/05  RS 485 Modbus Comms.
..
PC communication for configuration and monitoring.
.Physical Layer .4 wire or 2 wire half duplex RS485
.Baud Rate software selectable .19,200 or 9,600
.Protocol .Modbus RTU format
.Isolation .500 VAC
.Maximum Fan out .32 units
.Termination
Standard... .5 way tension clamp connector
Optional... .Screw terminals
Optional... .Ribbon Cable - RC

DOWNLOADS
DM3400 Literature


ORDER CODE

DM34(Input Option)(LED Option) / Power Option

.DM34 Basic Model Number
.Input Options .1 = Universal Temperature
.2 = Universal Process
.LED Options .0 = RED LED version
.1 = GREEN LED version
.Power Options .S1 = 90 to 253 VAC 50/60 Hz
.S2 = 20 to 35 VDC

OPTIONS

.Pod-3000/02 .Dual Relay Output (2 per unit maximum)
.Pod-3000/03 .Isolated 4 to 20 mA re-transmission (1 per unit maximum)
.Pod-3000/05 .Isolated Modbus RS485 (1 per unit maximum)
.Pod-3000/05-RC .Ribbon cable option (Pod 3000/05 only)
.ACC001 .Pack of ten 5 way optional screw terminals
 

 

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