UNDER AND OVERVOLTAGE
TRUE RMS PROTECTOR
MONIVOLTIIV01-04T-17556
MONIVOLT II
Ver.01
WARNING
ACESSORIES:
Use only Full Gauge Controls original accessories.
If you have any queries, please contact our technical support.
AUTHORIZED SERVICES:
The installation and maintenance of the product must be performed by qualified personnel only;
THROUGH CONTINUOUS DEVELOPMENT, FULL GAUGE CONTROLS RESERVES THE RIGHT TO
CHANGE THIS MANUAL INFORMATION AT ANY TIME, WITHOUT PRIOR NOTICE.
BEFORE THE INSTALLATION OF THE CONVERTER, WE RECOMMEND READING THE
INSTRUCTION MANUAL IN FULL TO PREVENT POSSIBLE DAMAGE TO THE PRODUCT.
PRODUCT INSTALLATION PRECAUTIONS:
Before performing any procedure on this instrument, disconnect it from the power grid;
Ensure that it has adequate ventilation, avoiding installation on control panels containing devices that
could cause it to operate outside its specified temperature range;
Install the product away from sources that may generate electromagnetic disturbances, such as:
motors, contactors, relays, electrovalves, etc.;
MONIVOLT II is a single-phase electrical equipment protection device that can be used in industrial
applications as well as in commercial and residential applications. Through the True-RMS
measurement method, MONIVOLT II monitors the voltage, being able to protect single-phase loads
against under-or-over-voltage. In addition, MONIVOLT II has an automatic timer for the protection
of the equipment, in case of electric power variations below or above the set limits, it will wait before
reactivating the output control.
True-RMS: Actual voltage value (real root mean square), including the contribution of high frequency
noise present in the mains power (harmonic distortion). This is the true voltage being applied to the
equipment connected to the mains. This method allows measuring the voltage for any waveform with
greater accuracy, while traditional methods only provide accurate measurements when the waveform is
perfectly sinusoidal.
Control voltage Monivolt II 115V: 85~152Vac
Monivolt II 230V: 174~265Vac
Resolution 1V
Have this manual in the palm of
your hand by FG Finder application.
Operating temperature
Operating humidity
0 to 50°C
10 to 90% (without condensation)
Dimensions 68,5 x 81,0 x 28,0 mm (2,70 x 3,19 x 1,10'’)
Maximum current 16(8) A / 250Vac 1HP
• Protection of single-phase electric equipment.
Power supply 85~265Vac / 50/60Hz
1. DESCRIPTION
2. APPLICATIONS
3. TECHNICAL SPECIFICATIONS
4. OPERATIONS
- Initial Delay : Upon power up, MONIVOLT II will wait for the initial delay of three minutes and the
green LED will keep flashingdvdduntil this time has elapsed. If MONIVOLT II detects a voltage
outside the configured range during the initial delay, the red or yellow LED will keep flashing, dddd dddd
indicating that the voltage is above or below the working range, respectively. If the voltage remains out of
range even after the initial delay, the output will remain turned off and the respective LED will turn on
indicating the voltage is outside the configured range. If the voltage is within the configured range when
the initial delay is finished, the output and the green LED will be switched on immediately.dd
4.1 Adjustment ranges: Check the purchased model
4.1.1 MONIVOLT II 115V:
4.1.2 MONIVOLT II 230V:
MONIVOLT II will enter error mode if the value of the settings is reversed, i.e. if a value for the lower
range is set higher than the value set for the upper range. The controller will deactivate the output and
will go into error mode, indicated by the red cccc dddd and yellow LEDs flashing alternately. Only after
the voltage settings have their adjustments corrected MONIVOLT II will exit error mode and
resume the monitoring of the mains.
Note: The controller does not allow the adjusting of a too narrow voltage range in order to avoid that
normal oscillations of the mains disconnected the equipment to be protected. The difference between
the maximum and minimum voltage limit settings must be of at least five volts.
- Out-of-range voltage detection: When an out-of-range voltage is detected, MONIVOLT II will
validate the reading and switch off the output after five seconds (fixed time). At this time, it starts to
count the three-minute delay and the corresponding LED will keep flashing to indicate that the voltage
is below or above the set range. During the three-minute delay, one of the LEDs will keep flashing with
either the green LED to indicate that the voltage is within the range again. the yellow LED to ddd ddd
indicate that the voltage is below the range, or the red LED indicating voltage is above the set ddd
range. If the voltage remains outside the configured range once the delay time has elapsed, the
respective LED will remain on while the voltage is out of range.
As soon as the voltage returns to the working range, MONIVOLT II will revalidate this new voltage
reading and thus activate the load again. Whenever the output is switched off due to the detection of
out-of range voltage, the three-minute delay is always respected. This delay ensures the protection of
equipment such as refrigeration system compressors that require a minimum stoppage time before
starting up after shutdown.
5. SIGNALING
6. CONNECTION SCHEMATIC
Ocurrence
LED STATUS / State
Red / On
Green / On Normal operation (voltage
within range)
Counting the delay with the
voltage within the range
Delay time in progress
Voltage is above range
Delay time finished
Voltage is above range
Delay time in progress
Voltage is below range
Delay time finished
Voltage is below range
Adjustment of the trimpots
inverted or with a difference
of less than 5V between them.
Contact Full Gauge Controls
Yellow / On
Yellow / Flashing
Red / Flashing
Yellow - Red / Flashing
Green / Flashing
Green - Yellow - Red / Flashing
L1
L2
Power Supply:
85~265Vac / 50/60Hz
Output:
16(8) A / 250Vac 1HP
LOAD
Output
On
Off
Off
Off
Off
Off
Off
Off
Product available with Faston and terminal block type connection. Specify the model when ordering.
* Terminal block connection has the same
arrangement as the Faston version.
Note: It is recommended to use a M4 or M5 screw to fasten the controller.
Front view Side view
28,00mm (1,10'’)
30,00mm (1,18'’)*
81,00mm (3,19'’)
54,20mm (2,13'’)
68,50mm (2,70'’)
5,30mm
(0,209'’)
60,00 mm (2,36'’)
ENVIRONMENTAL INFORMATION
Package:
The packages material are 100% recyclable. Just dispose it through specialized
recyclers.
Product:
The electro components of Full Gauge Controls controllers can be recycled or reused if it
is disassembled for specialized companies.
Disposal:
Do not burn or throw in domestic garbage the controllers which have reached the end-of-
life. Observe the respectively law in your region concerning the environmental
responsible manner of dispose its devices. In case of any doubts, contact Full Gauge
Controls for assistance.
TERM OF WARRANTY - FULL GAUGE CONTROLS
Products manufactured by Full Gauge Controls, as of May 2005, have a two (02) year
warranty, as of the date of the consigned sale, as stated on the invoice. They are
guaranteed against manufacturing defects that make them unsuitable or inadequate for
their intended use.
EXCEPTIONS TO WARRANTY
The warranty does not cover expenses incurred for freight and/or insurance when
sending products with signs of defect or faulty functioning to an authorized provider of
technical support services. The following events are not covered either: natural wear and
tear of parts; external damage caused by falls or inadequate packaging of products.
LOSS OF WARRANTY
Products will automatically lose its warranty in the following cases:
- The instructions for assembly and use found in the technical description and installation
procedures in Standard IEC60364 are not obeyed;
- The product is submitted to conditions beyond the limits specified in its technical
description;
- The product is violated or repaired by any person not a member of the technical team of
Full Gauge Controls;
- Damage has been caused by a fall, blow and/or impact, infiltration of water, overload
and/or atmospheric discharge.
USE OF WARRANTY
To make use of the warranty, customers must send the properly packaged product to
Full Gauge Controls together with the invoice or receipt for the corresponding purchase.
As much information as possible in relation to the defect detected must be sent to
facilitate analysis, testing and execution of the service.
These procedures and any maintenance of the product may only be provided by Full
Gauge Controls Technical Support services in the company’s headquarters at Rua Júlio
de Castilhos, 250 - Canoas - Rio Grande do Sul - Brazil
Copyright 2019
7. DIMENSIONS
*For Faston model only.
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