Datakom DKM-046 Manuale utente

DKM-046 User Manual V-2.0

DKM-046

TEMPERATURE &

HUMIDITY

CONTROLLER

DKM-046 is a DIN Rail mounted precision

unit capable of measuring temperature and

humidity in three different locations, provide

protection with 4 relay outputs and serve data

to remote monitoring and control systems.

Sensing modules are separated from the

base unit, connecting with cables. One

sensor comes together with the base unit.

Additional sensors may be purchased

separately.

Two different auxiliary supply versions are

available. The AC model accepts 85 to

305VAC and the DC model accepts 19 to

150VDC.

The module provides data to automation and

BMS systems through its isolated RS-485

Modbus port.

The programming is performed through

pushbuttons on the unit.

Sensor modules incorporate ST-HTS221

polymer dielectric planar capacitive sensors.

Relay functions are programmable with

functions selected from a list.

● Supports 3 temperature & humidity sensors

● AC and DC auxiliary supply versions

● Programmable relay outputs: 4

● Temperature and relative humidity control

● Independent cooling / heating / humidification

/ dehumidification functions for each sensor

● Temperature measuring range: -40...+80°C

● Humidity measuring range: 0% ... 100%

● Humidity accuracy: ±3.5% , 20 ... +80%

● Temperature accuracy: ± 1°C, 0 ... +60 °C

● Factory calibrated sensors

● Front panel programming

● Supports Modbus programming

●DIN rail mounted, easy installation

● Operating temp range: -20°C ... +70 °C

● Two part connection system

DESCRIPTION

FEATURES

DKM-046 User Manual V-1.0

Electrical equipment should be installed only by qualified

specialist. No responsibility is assured by the manufacturer or

any of its subsidiaries for any consequences resulting from the

non-compliance to these instructions.

Check the unit for cracks and damages due to transportation.

Do not install damaged equipment.

Do not open the unit. There are no serviceable parts inside.

Fuses must be connected to the power supply inputs, in close

proximity of the unit.

Fuses must be of fast type with a maximum rating of 6A.

Disconnect all power before working on equipment.

When the unit is connected to the network do not touch

terminals.

Any electrical parameter applied to the device must be in the

range specified in the user manual. Although the unit is

designed with a wide safety margin, over-range parameters may

reduce lifetime, alter operational precision or even damage the

unit.

Do not try to clean the device with solvent or the like. Only

clean with a dump cloth.

Verify correct terminal connections before applying power.

SAFETY NOTICE

Failure to follow below instructions will result in

death or serious injury

DKM-046 User Manual V-1.0

Section

1. INSTALLATION INSTRUCTIONS

1.1 FRONT PANEL VIEW

1.2 ELECTRICAL INSTALLATION

1.3 INSTALLATION DIAGRAM

2. PUSHBUTTON FUNCTIONS

3. SCREEN NAVIGATION

3.1 LAMP TEST

4. PROGRAMMING

4.1 ENTERING THE PROGRAMMING MODE

4.2 RESETTING ALARMS

4.3 SELECTING THE DEFAULT SCREEN

4.4 ADJUSTING TEMPERATURE LOW AND HIGH LIMITS

4.5 ADJUSTING RELATIVE HUMIDITY LOW AND HIGH LIMITS

4.6 ENABLING / DISABLING SENSORS

4.7 CONFIGURING RELAY OUTPUTS

4.8 ALARM DELAY

4.9 ALARM LOACK

4.10 MODBUS PARAMETERS

4.11 ADJUSTING TEMPERATURE OFFSET VALUES

4.12 ADJUSTING RELATIVE HUMIDITY OFFSET VALUES

4.13 ADJUSTING TEMPERATURE DIFFERENCE ALARM LIMITS

4.14 ADJUSTING COOLING START TEMPERATURE UPPER LIMITS

4.15 ADJUSTING HEATING START TEMPERATURE LOW LIMITS

4.16 ADJUSTING TEMPERATURE HYSTERESIS FOR COOLING AND

HEATING

4.17 ADJUSTING DE-HUMIDIFICATION START HUMIDITY

4.18 ADJUSTING HUMIDIFICATION START HUMIDITY

4.19 ADJUSTING HUMIDITY HYSTERESIS FOR HUMIDIFICATION

AND DE-HUMIDIFICATION

4.20 DISPLAYING THE FIRMWARE VERSION

4.21 RETURN TO FACTORY SETTINGS

TABLE OF CONTENTS

DKM-046 User Manual V-1.0

5. MODBUS COMMUNICATIONS

5.1. DESCRIPTION

5.2. COMMANDS

5.3. PROGRAM PARAMETERS

5.4. MEASUREMENTS AND CONTROLLER RECORDS

6. TECHNICAL SPECIFICATIONS

DKM-046 User Manual V-1.0

Before installation:

Read the user manual carefully, determine the correct connection diagram.

Install the unit to the DIN rail.

Make electrical connections with plugs removed from sockets, then place plugs to their sockets.

Be sure that adequate cooling is provided.

Be sure that the temperature of the environment will not exceed the maximum operating temperature in any

case.

Be sure that the unit is not subject to water spill.

Below conditions may damage the device:

Incorrect connections.

Incorrect power supply voltage.

Connecting or removing data terminals when the unit is powered-up.

Connecting or removing sensors when the unit is powered-up.

High voltage applied to communication ports.

Overload or short-circuit at relay outputs.

Excessive vibration, direct installation on vibrating parts.

Below conditions may cause abnormal operation:

Power supply voltage below minimum acceptable level.

Power supply frequency outside acceptable limits.

1. INSTALLATION INSTRUCTIONS

DKM-046 User Manual V-1.0

1.1 FRONT PANEL VIEW

DKM-046 User Manual V-1.0

Although the unit is protected against electromagnetic disturbance, excessive disturbance

can affect the operation, measurement precision and data communication quality.

ALWAYS remove plug connectors when inserting wires with a screwdriver.

Fuses must be connected to the power supply inputs, in close proximity of the unit.

Fuses must be of fast type with a maximum rating of 6A.

Use cables of appropriate temperature range.

Use adequate cable section, at least 0.75mm2 (AWG18).

Follow national rules for electrical installation.

Do not install the unit close to high electromagnetic

noise emitting devices like contactors, high current

busbars, switchmode power supplies and the like.

1.2 ELECTRICAL INSTALLATION

DKM-046 User Manual V-1.0

1.3 INSTALLATION DIAGRAM

DKM-046 User Manual V-1.0

BUTTON

FUNCTION

PROGRAMMING: Select related parameter / save adjusted

parameter.

Switch to the upper screen.

PROGRAMMING: increase value

Switch to the lower screen.

PROGRAMMING: decrease value

HELD PRESSED TOGETHER FOR 2 SECONDS:

Selects programming mode. If held pressed in programming

mode, then returns to normal mode.

NO KEY PRESSED DURING 1 MINUTE:

Returns to the main display screen.

2. PUSHBUTTON FUNCTIONS

DKM-046 User Manual V-1.0

Buttons allow navigation between measurement values. (Temp_1, Humidity_1,

Temp_2, Humidity_2, Temp_3, Humidity_3, Alarms)

Leds related to the currently displayed values will turn on, other leds will turn off.

Temperature display: Temperature is displayed with 0.1 °C accuracy. The related Modbus

Humidity display: The relative humidity is displayed with 1% accuracy. The related

Modbus register has 0.01% accuracy.

HELD PRESSED FOR 2 SECONDS:

Enters lamp test mode. When released returns to

normal operating mode.

3.1 LAMP TEST

3. SCREEN NAVIGATION

Indice

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