D3-VMD2


2-RELAY
2-RELAY
2-RELAY

DC VOLTAGE INDICATOR / MONITOR / WINDOW COMPARATOR OVER / UNDER VOLTAGE PROTECTION


R1417.85 

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2 RELAYS

TThis device is used to display and monitor DC voltage.
Maximum & Minimum values are logged for 24 hours (updated every 60 min).
The latch facility may be de-activated for one or both the relays allowing one relay to be used for control (not latched), and the other as a latched alarm.
Use the “ScAL” parameter for calibration purposes, or to change the number of decimal places displayed (see notes).
Other features include adjust able signal damping, adjustable start-up and reaction delays, the ability to swap the relay’s functionality.
All settings may be locked & code protected to avoid changes from being made by unauthorised personnel.

ADDITIONAL FEATURES INCLUDE:

  • adjustable RESOLUTION by adjusting the position of the decimal point and scale
  • adjustable HYSTERESIS (DIFFERENTIAL)
  • START-UP DELAY: allows the current to stabalize at startup before monitoring starts
  • REACTION DELAY: prevent tripping for a pre-set time period
  • LATCH facility: to force manual reset after fault
  • LATCH can be enabled / disabled for each relay independantly (used when one relay is alarm relay)
  • independantly invert relay action, ie close while in fault condition
  • keypad lock with code

 

ADJUSTABLE PARAMETERS:

SCALE : 1V - 9999V

DECIMAL POINTER : 0.000 / 0.00 / 0.0 / 0

UPPER LIMIT : 1V - full scale

LOWER LIMIT : 1V - full scale

HYSTERESIS: 1V - full scale

START-UP DELAY: 0 - 99 seconds

REACTION DELAY (TRIPP DELAY): 0 - 99 seconds

CALIBRATION: 90% - 110%

RESPONSE TIME :<1-4 sec

Specifications:
Display scale:                    10 to 9999
Display resolution:            0.1 to 1 (adjustable)
Max Input voltage:            155V
Measurement resolution:   0.15V
Accuracy:                           ±0.3% @ 25°C (% of full scale)
Supply voltage:                 ±15% of rated input

User Manual