Process indicator DT9002 N

LCD display5-digitpanel-mount

Product features

• Display in engineering units
• 4 1/2 digit LCD, 20.5 mm character height
• 4-20 mA loop powered
• Min. / Max. values detection
• 2 isolated limit outputs
• 0.03% accuracy, ±20 ppm / °C
• Easy on-site configuration
• DT9002: IP65 front, IP30 rear

Product description
The DT9002 N Process Indicators enable linear process variables to be displayed in engineering units. Two isolated outputs are available with different operating modes for limit signaling or for simple control purposes. Both indicators are looppowered from 4-20 mA signals, dropping less than 2 V at 20 mA.
Large 4 ½-digit, 20.5 mm height liquid crystal display make process variables easily visible at a distance.
A label defining the appropriate engineering unit is attached to the right of the display. Both indicators can be set up to reverse the display „direction” (i.e. to produce a decreasing displayed value for a rising signal input) and to display a decimal point if required.
Easy on-site configuration through the front panel keypad is a major advantage of the microcontroller-based technology.
The settings of zero and full-scale values are non-interactive, making the configuration process rapid and simple.
The configuration parameters: scaling, decimal point position, display refresh rate, signal filtering, limit modes, limit values, etc. are stored in EEPROM. A two level password protects the settings from unauthorised changes.
The DT9002 N is housed in a DIN standard 144 × 72 mm ABS case with IP65 protection from the front and IP30 protection from the back side, for installation on the control panel.

Technical specification
Safety data: The connection terminals of the supply voltages are isolated from each other, the isolation is in compliance with the standard
EN 61010-1, taking into consideration the following:

• Pollution level: 2
• Measurement category: II

Input parameters:

• Input signal: DC current
• Characteristics: linear
• Measurement range: 4-20 mA
• Overrange: 3.5-20.5 mA
• Sampling: 15 measurement / sec.
• Number of averaged samples: 1; 2; 4; 8; 16; 32 (selectable)
• On input terminals: < 2.2 V @ I= 4 mA, < 2 V @ I= 20 mA
• Accuracy: 0.02% @ Ta = 23 °C ±2 °C, 0.05% @ -20 °C < Ta < +60 °C

Display / Manual controls:

• Display: 4 1/2 digit, 7 segments, decimal point and negative sign
• Display unit: LCD, 20.5 mm character height
• Range: -19999 - +19999
• Display value assigned to 4 mA: anywhere within the range
• Display value assigned to 20 mA: anywhere within the range
• Decimal point: its position can be selected, or it can be switched off
• Display refreshing time: 0.1; 0.3; 0.5; 1.0; 2.0 sec. (selectable)
• Manual controls: 3 membrane push-buttons on the front cover

Power supply:

• Power supply: 4-20 mA loop-powered, reverse polarity protected

Output parameters:

• Output: 2 limit outputs
• Output type: optically isolated passive switching transistor
• Load rating: 30 V, 30 mA max.
• Refreshing time: same as the display refreshing time
• Hysteresis: 0 - ±999

Electromagnetic compatibility (EMC) accordance with the standard EN 61326-1

• Immunity: Industrial area
• Noise emission: Group 1, Class B

General data:

• Housing: DIN standard ABS case, installable as a panel instrument
• Connection: push-in direct connection
• Connection cable: 0.25-1.5 mm2 (max.)
• Dimensions: 144 × 72 × 75 mm (width × height × depth)
• Weight: 0.4 kg
• Protection IP65 (front), IP30 (rear)

Detailed information see in operating instructions. The Manufacturer maintains the right to change the technical data!