Digital instrument

DHB-124

DHB-124, Digital indicator

Code: M22022.CONSULTAR DISPONIBILIDAD

  • Communications: RS-485
  • Nº relays: 3
  • Analog output: 1 (0/4...20 mA) |1(0...10V)
  • Measure: imp., Hz.
  • Paramètre: Impulses, frequency, circular speed, periods, worktime, encoder position
  • Mounting: Pannel

INFORMATION

Description

Panel mounted digital devices designed to display on-screen the value of a electrical variable measured or proportional value of a process signal, depending on the model. Essential for regulation purposes, programming the analogue output available in some models, and for control purposes, if the relay outputs are used as alarms.
DHB units are fully programmable and the following can be programmed: scale, transformation ratios, alarm setpoints to activate relays, communications, colour of the numbers displayed on screen, etc. Depending on the model, you can measure the electrical parameters of a single-phase installation such as voltage, current, frequency, power, cos φ, etc., the direct voltage or current of an installation, impulses, frequency, circular speed, periods, time, temperature and also other voltage and current process variables. AC models calculate the true root mean square measure (TRMS).

The models include the following common features:

  • IP 65 front panel
  • High measurement accuracy
  • Programmable measurement input
  • Delay and latching alarms
  • 24 Vdc output for supply external transducers (DHB 1xx and DHB 4xx models)
  • Galvanic insulation between external circuits
  • Adjustment of non-linear equations with 21 straight points (2 in the DHB 3xx model).
  • Change in colour of the display depending on the value shown.
  • Maximum and minimum values
  • Clock with current time
  • Self-configurable decimal point
  • Compatible with Power Studio (model with communications)
  • Installation on 96 x 48 mm panel

Applications

These digital instruments have multiple applications. Thanks to their very bright 5-digit and 3-colour screen, you can simply view a numerical value and an alarm or prealarm status of a measured variable. Depending on the model selected, displayed on-screen are the electrical parameters of a single-phase installation as a power analyzer (voltage, current, power, frequency, etc.).
Other models allow to visualize the value of an analogue signal, show impulses received through an input, temperature, time, circular speed and many other variables that depends on the device and the configuration. The indicators also let you operate any external element, using the panel unit outputs as alarms depending on the value of a variable or as a transducer of the measured variable to an analogue signal, which is subsequently sent to another unit, such as a PLC.
Apart from displaying the values, units with communications also allow you to send data via the RS-485 communication bus for software or PLC integration.

SPECIFICATIONS

AC power supply
Nominal voltage
85…253 Vc.a.
Frequency
40…400 Hz
Consumption
1,2…9 VA
Installation category
CAT III 300V
DC power supply
Nominal voltage
85…253 Vdc
Consumption
1,2…6 W
Installation category
CAT III 300 V
Input signal
Voltage
5 … 36 Vc.c.
Input types
Maximum pulse input frequency IN1/IN2
10 kHz / 8 kHz
Frequency
<10 kHz : 100 kHz / >10kHz: 1MHz
Maximum rotation speed frequency
100 kHz
Maximum time frequency
100 kHz
Encoder (maximum frequency)
10 kHz
Display ranges
IN1/IN2 pulse meters
-19999…99999
Frequency
<10 kHz : 0,05…99999 Hz / >10 kHz : 1…99999 Hz
Rotation speed meter
0,05…99999 rpm
Time period
<10 s (0,0001 … 11s) / >10 s (0,0001 … 3600s)
Run time meter
0 … 99999 h
Encoder
-19999 … 99999
Current time
00:00 … 23:59
Measurement accuracy
Frequency measurement
0,01
Digital relay outputs
Maximum open contact voltage
250 Vac
Maximum current
0,5 A
Electrical life
1x105ciclos (250 Vc.a./5 A)
Mechanical life
1x106 cycles
Maximum switching capacity
1500 W o 1250 VA
Open collector output
Type
NPN
Voltage
30 Vc.c. / 30 mA
External transducer power supply output
Voltage / Current
24 Vc.c. / 30 mA
Analogue outputs
Current mode, nominal range
0…20 mA or 4…20 mA
Current mode: minimum load resistance
≤ 500Ω
Voltage mode: nominal output range
0…10 Vdc
Voltage mode, minimum load resistance
≥ 500Ω
Communications
Protocol
Modbus RTU
Fieldbus
RS-485
Speed
4800-9600-19200-38400-57600-115200
User interface
Display type
7 segments (5 digits) LED
LED
7
Keyboard
4 keys
Environmental characteristics
Working temperature
-25…+55 °C
Storage temperature
-33…+70 °C
Relative humidity (without condensation)
25…95 %
Protection class
IP 65 (Front), IP 10 (rear)
Mechanical characteristics
Envelope
Self-extinguishing V0 plastic
Weight (kg)
0,3
Size (mm) width x height x depth
96 x 48 x 93 (mm)
Standards
Standards
UNE EN 61000-6-2, UNE EN 61000-6-4, UNE EN 61010-1
Electrical safety, Maximum height (m)
2000

DIMENSIONS

CONNECTIONS

VIDEOS

DOWNLOADS

User's manual
Technical guide
Dimensions
Diagram connection
Datasheet
Presentation
CE-certified
Leaflet

ACCESORIES

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