Introduction; Description - Presys DMY-2015 Technical Manual

Digital multi-point indicator

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Presys  Instruments

1.0 - Introduction

PRESYS Digital Multi-Point Indicator DMY-2015 is a microprocessor-based

instrument with up to 12 inputs for monitoring process variables found in industrial

plants, such as, flow, level etc., and totalization of voltage and current linear inputs. It

has non-volatile internal memory (E2PROM) to store calibration values. Its accuracy

is warranted by autocalibration techniques based on a high thermal stability voltage

reference.

It can communicate with computers by means of an optional communication

module RS-232 or RS-422/485.

The Indicator presents specific models with 12 thermocouples or 8 RTD inputs

for the monitoring of temperature, and 12 current (mA) or 12 voltage (V) linear signal

inputs. There are also available models with two different types of input.

Thermocouples and RTD inputs are linearized automatically by tables stored in the

EPROM memory.

The totalization is performed independently for each channel of up to 8 linear

inputs (mA current and V voltage), configured together with the number of decimals.

The totalization counts do not decrease for signals under the zero scale defined by

the user, and Reset can be applied to the totalization by means of the Indicator front-

panel keys.

All configuration data can be protected by password and are stored in non-

volatile memory in case of an external power failure.

According to modularity design concept, the Indicator accepts up to two output

alarm modules. The types of output are: SPDT relay and open collector voltage.

Fig. 1 - DMY - 2015 Indicator front panel

DMY - 2015

Introduction

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