ML-x17 option boards

Option boards can be used to add additional inputs/features to an ML-x17 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 are having 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.
Cat.CIDSKU, DescriptionRangesExcitationTerminals
AD0x48
&
0x49
ML-OI-AD-80MV, Dual channel 16-bit differential inputDual channel 16-bit differential input.

a/o to connect pyranometers or load-cells
±80mV
±40mV
±20mV
±10mV




5V
@80mA
1. In 1 (+)
2. In 1 (-)
3. In 2 (+)
4. In 2 (-)
5. Excitation
6. Ground
7. CID selector
ML-OI-AD-2000MV, Dual channel 16-bit differential input
Dual channel 16-bit differential input.

a/o to connect thermistors or pH-probes
±2000mV
±1000mV
±500mV
±250mV




5V
@80mA
1. In 1 (+)
2. In 1 (-)
3. In 2 (+)
4. In 2 (-)
5. Excitation
6. Ground
7. CID selector
ML-OI-AD-10V, Quad channel 16-bit single ended input
Quad channel 16-bit single ended input.
±10V
±5V
±2.5V
±1.25V




12V
1. Input 1
2. Input 2
3. Input 3
4. Input 4
5. Excitation
6. Ground
7. CID selector
ML-OI-AD-20MA, Quad channel 16-bit single ended input
Quad channel 16-bit single ended input.
±20mA



12V
1. Input 1
2. Input 2
3. Input 3
4. Input 4
5. Excitation
6. Ground
7. CID selector
AX0x46
&
0x47
ML-OI-AX-DI, to add four more digital inputstotalizers 0/1
0…16777216
5V
10kHz
1. Input 1
2. Input 2
3. Input 3
4. Input 4
5. Ground
6. Backup batt.
7. CID selector
ML-OI-AX-DS18B20, to connect up to four 1-Wire digital thermometers1-Wire digital thermometer

Supported chips:

DS1820, DS18B20, DS18S20, DS1822, DS1920




3.6V
1. Input 1
2. Input 2
3. Input 3
4. Input 4
5. Excitation
6. Ground
7. CID selector
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)


3.6V
1. SCL
2. SDA
3. Excitation
4. Ground
5. CID selector
BARO0x76ML-OI-BARO, Atmospheric pressure & temperature sensor
a/o to compensate readings of level sensorsI2C RH sensor input.
300…1200hPa (±2hPa)
-30…+70°C (±1°C)
COM0x4C ML-OI-COM-UART, Serial sensor input (UART)UART

to connect sensors with TTL UART port
300…230k4bps
Tx (0…3.3V)
Rx (0…5V)
3.3V 1. Excitation
2. Transmit
3. Receive
4. Ground
ML-OI-COM-RS232, Serial sensor input (RS232)RS232

a/o to connect an GPS-receiver
300…230k4bps12V 1. Excitation
2. Transmit
3. Receive
4. Ground
ML-OI-COM-RS485, Serial sensor input (RS485)RS485

a/o to connect a MODBUS/RTU sensor
300…230k4bps12V 1. Excitation
2. RS485 A+
3. RS485 B-
4. Ground
ML-OI-COM-SDI12, SDI-12 sensor inputSDI12

12V 1. Excitation
2. Ground
3. Data
OA0x4DML-OA-RS232, RS232 Auxiliary boardRS232 Auxiliary board

To add a secondary accessory to an ML-x17ADS (e.g. to add a second camera)
Off/On: 0/3.6V
300…230k4bps
1. Control out
2. Transmit
3. Receive
4. Ground
ML-OA-WIFI, WiFi Auxiliary boardWiFi interface

To transfer log files by WiFi (TCP, MQTT & HTTP)
<400m
+19dBm transmit power
-96dBm sensitivity
IEEE 802.11b/n/g
OO0x50
&
0x51
ML-OO-MODBUS, MODBUS/RTU auxiliary output board MODBUS Slave

To share sensor readings with your local SCADA system
32 floating-point values
4800…38k4bps
1. RS485 A+
2. RS485 B-
3. Ground
4. CID selector
ML-OO-SW, digital output board Galvanic isolated switches

To add three galvanic isolated switches with potential free contacts
±100V
±200mA
1. Contact 1a
2. Contact 1b
3. Contact 2a
4. Contact 2b
5. Contact 3a
6. Contact 3b
7. CID selector
OCn/aML-OC-W2P, Waveform to digital pulse converterSine form to digital pulse convertor

To connect flow meters or anemometer with a passive coil output
0…50kHz
60mV…24V

Pulse 0/3.6V
1. Coil in (+)
2. Coil in (-)

3. Pulse out
OPn/aML-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.
5V@300mA, 12V@200mA
or 24V@100mA

Off/On: 0/3…24V
3.6V (from batteries)
1&2. Output

3&4. Ground
5. Control in
6. Supply
7. Volt selector
8. Cntrl mode
OU0x4AML-OU-BLE, Bluetooth LE user interfaceBLE user interface

To enable wireless local access
<160m
+4dBm transmit power
-92dBm sensitivity