Honeywell European Industrial Store

Digital Circular Recorder
DR4500 Truline

Overview

Honeywell’s Truline recorder is a one to four-channel, microprocessor-based, circular chart recorder. Its “one-pen” stylus printhead produces up to four analog traces and prints alphanumeric chart data on a blank heat-sensitive chart. All four traces share the same time line reference which the Truline prints. This eliminates the error caused by pen alignment offsets in conventional pen designs. Since the Truline prints the chart and generates the analog traces at the same time, there is no error due to variations in chart size caused by changes in temperature and humidity.

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Benefits

With microprocessor electronics and single printhead, the Truline recorder is easily configured by users to meet a variety of application requirements -- from metals to food processing. In addition to printing informative, accurate chart records, the Truline recorder alternately displays process variable values for all channels in the selected engineering units. Models with up to four input channels accept inputs from any one of a variety of sensors or transmitters within the configurable range limits. Also, models are available with one or two independent digital controllers to generate controlled output signals which will operate valves, dampers, heating elements, etc. for process control.

Characteristics

User Configurable - means that users can set and/or alter operating parameters to fit their requirements, including type of input, without recalibration.
English Language Prompts - coupled with simple keystroke sequences, make configuring the recorder easy and straightforward.
Operator Interface - includes clear, brilliant alphanumeric displays; indicators; deviation bargraph; and keypad for visual and tactile interaction.
All-Purpose Chart - blank chart eliminates the need for ordering and stocking several types of charts. And, users can design the chart to match specific applications.
Four Channels - up to four channels that monitor process variables from a variety of sensors reduce panel space requirements.
“One-pen” Printer - prints configurable alphanumeric chart data including time and trend lines. This automatically compensates for chart width variations caused by changes in the ambient relative humidity.
Time/Date - real-time, clock, dates, time of printing (hour, minutes, date and year) and any operator changes in real time guard against unauthorized chart advancement.
Control Output - up to two versatile PID digital controllers let users configure the exact control action needed for their process.

Applications

Typical applications include heat treating, environmental chambers, sterilizers, and dryers.

Options*

Chart Illumination -- Lights the chart area to improve readability in lower light areas. Alarm Output -- Ties “soft” alarms to up to six integral SPST relays to activate user’s external equipment.
Digital Input -- Allows users to initiate from a remote location through two dry contact closures, selected recorder functions, such as automatic to manual control mode, direct to reverse controller action, or reset totalizer.
Modbus RTUCommunication
Set Point Ramp/Soak Programming -- Lets users program and store 6 ramp and 6 soak segments. Run or Hold of program is keyboard or remote switch selectable. Select a recovery mode for powerup.

Math Function Algorithms -- preconfigured algorithms for easy implementation into other control loop with Ratio and Bias.
Control -- Two digital controllers are available.
Auxiliary 4-20 mA Output
Acrylic Window
Door Lock or Heavy Duty Latch
Heavy Duty Door
UL Listing, FM Approval
Customer ID Tag (30 characters max.)
*Restrictions apply -- Not all of the options can be supplied together.

Model Selection Guide