SIMARINE SCQ25 Quadro Digital Shunt Module User Manual
- June 5, 2024
- SIMARINE
Table of Contents
SCQ25 Quadro Digital Shunt Module
User Manual
Introduction
SCQ25 digital shunt module is Simarine’s most versatile module. It can be used
to measure voltage and current.
SCQ25 has 4x 25 A integrated shunts capable of measuring voltage up to 35 V DC
and continuous current up to 25 A on each shunt.
Safety
Installation of Simarine electronics should be made by electrical specialists
with proper safety equipment. When working with batteries you should wear
protective clothing and eye protection.
CAUTION: Batteries contain acid, a corrosive, colorless liquid that will
burn your eyes, skin, and clothing. Should the acid come in contact with eyes,
skin or clothing, wash it immediately with soap under fresh water for at least
15 minutes, and seek medical support immediately.
CAUTION: Do NOT connect anything to a damaged battery. It could heat up,
catch fire or explode.
CAUTION: Lead-acid Batteries can generate explosive gases during
operation. Never smoke, allow flames or sparks near the battery. Make sure to
keep sufficient ventilation around the battery.
CAUTION: When working with a battery remove all personal metal items like
watches, rings, necklaces, and bracelets. Metal items in contact with the
battery terminals might cause a short circuit with a very high electric
current, which may heat up and melt nearby objects and cause severe burns.
Overview
A – 4x shunt input
B – 4x shunt output
C – 2x SiCOM port
Installation
Mounting
CAUTION: install the shunt module in a clean dry place, protected from
accidental spilling of liquids.
- You can fix the shunt module with the supplied screws using four holes on both sides of the module.
- Connect all cables (see section 4.3 Connecting).
Cables
SiCOM data cable
For the AACOM connection use the supplied cable. If not possible, use the
following table to determine the right cable type.
| Cable length | Cable type |
|---|---|
| < 5m | No limitations |
| >= 5m | 2x2x0.25 mm2 Twisted pair (recommended) |
Connecting
For proper function of Simarine SCQ25 digital shunt module, it is necessary
to:
- Connect SCQ25 to Simarine PICO via the SICOM port.
- Connect consumers/generators minus or plus terminal through one SCQ25 shunt. *
- Each correctly connected shunt needs to be configured. This is done via PICO in an easy way. The configuration process is described in PICO’s manual.
SCQ25
Technical specifications
Operating
Voltage range| 6 – 35 V
Temperature range| -20 – 70 °C (-4 – 158 °F)
Power consumption at 12V
Operating| 2.5 mA
Current Measuring ( per channel )
Range| 0.01 – 25 A
Accuracy| 0.60%
Resolution| 0.01 A
Sampling rate| 100 ms
Maximal current
Continuous| 25 A
Peak current ( <1min )| 35 A
Dimensions| 183x91x34 mm
Connectivity| Up to
Shunt| 4
SICOM port| 2
Table 1Technical specification
Troubleshooting
Negative current values
If PICO is showing the wrong sign for the current value. Check if the shunt is
correctly installed. This means the consumers/generators minus (optionally
plus) terminal is connected to the IN terminal on the shunt. If this is not
the case, you can reinstall the shunt or simply switch the IN and OUT terminal
via the shunt configuration on PICO.
The shunt sensor is not visible on pico
If the shunt sensor is not visible in PICO’s menu, check the following:
- Is the SCQ25 properly connected via the SiCOM port to the PICO.
- If you are using your own SiCOM cable make sure it has the right square and is twisted.
Appendix
Picture 3SCQ25(NEG) and SC500(NEG)
Picture 4SCQ25(POS) and SC500(POS)
MARINE d.o.o.
Ulica skofa Maksimilijana Drzecnika 6
SI – 2000 Maribor
Slovenia
http://www.simarine.net
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