DayTronic 3500 Series, Instruction Manual

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THIS MANUAL TREATS ALL SIX STANDARD MODELS BELONGING TO THE
DAYTRONIC 3500 INSTRUMENT SERIES. THESE MODELS ARE AS FOLLOWS:
• the Model 3510 Thermocouple Conditioner
• the Model 3530 AC LVDT Conditioner
• the Model 3540 Frequency Input Conditioner
• the Model 3560 Voltage Conditioner
• the Model 3570 DC Strain Gage Conditioner
• the Model 3578 AC Strain Gage Conditioner
EXCEPT WHERE OTHERWISE STATED, THE INFORMATION IN THIS MANUAL
APPLIES EQUALLY TO ALL SIX MODELS.
DESCRIPTIONS, PROCEDURES, AND OPERATIONS SPECIFIC TO A GIVEN
MODEL OR MODELS WILL BE CLEARLY IDENTIFIED AS SUCH.
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Every 3500 Series instrument can be completely set up and operated either
through the front-panel keypad or via simple mnemonic commands received
from an external computer or terminal through its
RS-232/485 Interface Port .
The instrument can transmit data from this port in response to an interrogation
from an external computer, or can send it to an RS-232 serial printer when the
PRINT button is pressed (assuming that it is set to RS-232 mode). When in RS-
485 mode, a given 3500 instrument can represent one of up to 99 data-collection
"nodes" of a high-speed multidrop network.
Features common to all models include
• continuous dual-limit monitoring with front-panel annunciation, programmable
hysteresis windows, and TTL-level logic control outputs
• front-panel security code
• real-time positive peak capture or track/hold operation
• user-settable automatic tare offset
• internal 15-segment linearization for calibration of nonlinear inputs (except for
the Model 3510 Thermocouple Conditioner)
• selectable digital filtering
• selectable analog filtering (except for the Model 3510 Thermocouple Condi-
tioner)
• scalable analog output to drive strip-chart recorders or other devices (it may
also be used as feedback for a PID control loop)
• data-transmission formatting options, including "header" and "tailer" character
strings, node-number "echo," and limit-status indication
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