Option boards
Collect the right data with our option boards
Option boards to customize your data logger
Option boards can be used to add additional inputs/features to an ML-417 data logger or to perform signal conditioning. You can mechanically stack up to 3 option boards, but only one board per category ID (CID). Some boards come with a switch to choose a different CID, so you can stack multiple similar boards.
Converter(OC) or Power (OP) boards don’t have CID’s and you can stack as many OC/OP-boards as mechanical feasible. OC-boards don’t make use of the internal control bus, but are wired to existing inputs/outputs/ports.
Option board category
CID
0x48 & 0x49
SKU, Description
ML-OI-AD-80MV, Dual channel 16-bit differential inputDual channel 16-bit differential input.
a/o to connect pyranometers or load-cells
Ranges
- ±80mV
- ±40mV
- ±20mV
- ±10mV
Terminals
1. In 1 (+)
2. In 1 (-)
3. In 2 (+)
4. In 2 (-)
5. Excitation (5V @80mA)
6. Ground
7. CID selector
CID
0x48 & 0x49
SKU, Description
ML-OI-AD-2000MV, Dual channel 16-bit differential input Dual channel 16-bit differential input. a/o to connect thermistors or pH-probes
Ranges
- ±2000mV
- ±1000mV
- ±500mV
- ±250mV
Terminals
1. In 1 (+)
2. In 1 (-)
3. In 2 (+)
4. In 2 (-)
5. Excitation (5V @80mA)
6. Ground
7. CID selector
CID
0x48 & 0x49
SKU, Description
ML-OI-AD-10V, Quad channel 16-bit single ended input
Ranges
- ±10V
- ±5V
- ±2.5V
- ±1.25V
Terminals
1. Input 1
2. Input 2
3. Input 3
4. Input 4
5. Excitation (12V)
6. Ground
7. CID selector
CID
0x48 & 0x49
SKU, Description
ML-OI-AD-20MA, Quad channel 16-bit single ended input
Ranges
- ±20mA
Terminals
1. Input 1
2. Input 2
3. Input 3
4. Input 4
5. Excitation (12V)
6. Ground
7. CID selector
CID
0x48 & 0x49
SKU, Description
ML-OI-AD-PT1000, Dual channel 2 or 3-wire PT1000 input
Ranges
- -40…+85°C (±1.5°C)
- -20…+40°C (±1°C)
- On user calibration:
- -40…+85°C (±0.5°C)
Terminals
1. In 1(+)
2. In 1(-)
3. In 1(-)
4. In 2(+)
5. In 2(-)
6. In 2(-)
7. Wire selector
8. CID selector
CID
0x46
&
0x47
SKU, Description
ML-OI-AX-DI, to add four more digital inputs
a/o to connect pyranometers or load-cells
Ranges
0/1
0…16777216
5V
500Hz
Terminals
1. Input 1
2. Input 2
3. Input 3
4. Input 4
5. Ground
6. Backup batt.
7. CID selector
CID
0x46
&
0x47
SKU, Description
ML-OI-AX-DS18B20, to connect up to four 1-Wire digital thermometers.
Supported chips:
DS1820, DS18B20, DS18S20, DS1822, DS1920
Ranges
Terminals
1. Input 1
2. Input 2
3. Input 3
4. Input 4
5. Excitation (3.6V)
6. Ground
7. CID selector
CID
0x46
&
0x47
SKU, Description
ML-OI-AX-HART, Octo channel HART inputdatalogger HART inputs Supports multi-drop topology to connect multiple sensors devided over max 8 input channels.
Ranges
Terminals
1. Loop (+)
2. Loop (-)
3. Excitation (12V)
4. CID selector
CID
0x46
&
0x47
SKU, Description
ML-OI-AX-RH, to connect an external I2C based humidity sensorI2C RH sensor input. Supported chips: AM2315 (AOSONG) ChipCap2 (Amphenol/Telaire T9602-D-3) SHT3x (Sensirion).
Note: We recommend a cable length of max 0.5m.
Ranges
Terminals
1. SCL
2. SDA
3. Excitation (3.6V)
4. Ground
5. CID selector
CID
0x76
SKU, Description
ML-OI-BARO, Atmospheric pressure & temperature sensor a/o to compensate readings of level sensors
Ranges
- 300…1200hPa (±2hPa)
- -30…+70°C (±1°C)
Terminals
Terminals
CID
0x4C
SKU, Description
ML-OI-COM-UART, Serial sensor input (UART)UART to connect sensors with TTL UART port
Ranges
- 300…
- 230k4bps
- Tx (0…3.3V)
- Rx (0…5V)
Terminals
1. Excitation (3.3V)
2. Transmit
3. Receive
4. Ground
CID
0x4C
SKU, Description
ML-OI-COM-RS232, Serial sensor input (RS232) a/o to connect an NMEA-0183 transponder
Ranges
- 300…
- 230k4bps
Terminals
1. Excitation (12V)
2. Transmit
3. Receive
4. Ground
CID
0x4C
SKU, Description
ML-OI-COM-RS485, Serial sensor input (RS485) a/o to connect a MODBUS/RTU sensor
Ranges
- 300…
- 230k4bps
Terminals
1. Excitation (12V)
2. RS485 A+
3. RS485 B-
4. Ground
CID
0x4C
SKU, Description
ML-OI-COM-SDI12, SDI-12 sensor input
Ranges
Terminals
1. Excitation (12V)
2. Ground
3. Data
CID
0x4D
SKU, Description
ML-OA-RS232, RS232 Auxiliary board. To add a secondary accessory to an ML-417ADS (e.g. to add a second camera)
Ranges
- Off/On: 0/3.6V
- 300…230k4bps
Terminals
1. Control out
2. Transmit
3. Receive
4. Ground
Excitation: 3.6V
CID
0x4D
SKU, Description
ML-OA-WIFI, WiFi Auxiliary boardWiFi interface To transfer log files by WiFi (TCP, MQTT & HTTP)
Ranges
- <400m
- +19dBm transmit power
- -96dBm sensitivity
- IEEE 802.11b/n/g
Terminals
CID
0x50
&
0x51
SKU, Description
ML-OO-MODBUS, MODBUS/RTU auxiliary output boardMODBUS Slave To share sensor readings with your local SCADA system.
Ranges
- 32 floating-point values
- 4800…38k4bps
Terminals
1. RS485 A+
2. RS485 B-
3. Ground
4. CID selector
CID
0x50
&
0x51
SKU, Description
ML-OO-SW, digital output boardGalvanic isolated switches To add three galvanic isolated switches with potential free contacts
Ranges
- ±100V
- ±200mA
Terminals
1. Contact 1a
2. Contact 1b
3. Contact 2a
4. Contact 2b
5. Contact 3a
6. Contact 3b
7. CID selector
CID
n/a
SKU, Description
ML-OC-W2P, Waveform to digital pulse converterSine form to digital pulse convertor To connect flow meters or anemometer with a passive coil output
Ranges
- 0…50kHz
- 60mV…24V
- Pulse 0/3.6V
Terminals
1. Coil in (+)
2. Coil in (-)
3. Pulse out
CID
0x50
&
0x51
SKU, Description
ML-OP-524, to power external sensors or peripheralssensor power supply Power switches on in parallel with logger sensor power switch (internal control) or from an external signal.
Ranges
- 5V@300mA, 12V@200mA
- or 24V@100mA
- Off/On: 0/3…24V
- 3.6V (from batteries)
Terminals
1&2. Output
3&4. Ground
5. Control in
6. Supply
7. Volt selector
8. Cntrl mode
CID
0x4A
Ranges
- <160m
- +4dBm transmit power
- -92dBm sensitivity
Terminals
Discover the possibilities
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