SPEC SHEET
Digital Indicating Dissolved Oxygen Meter
AER-102-DO• 48 x 96 mm, panel mounting type• Drip-proof/Dust-proof IP66 (for front panel only)• Power supply voltage 24 V AC/DC (user-specified)• Proportional control, Max 4 points of relay contact• Various settings & calibration via software communication (RS-485) (optional)

Name
Model

Measurement
range

Digital Indicating Dissolved Oxygen Meter
AER - 1 0
Input points
Input

22-DO,

2 points
Optical DO sensor
100 to 240 V AC(standard)
Power supply voltage
124 V AC/DC (*)
C5Serial communication RS-485Option
EVT3
EVT3, EVT4 outputs (Contact output 3, 4)(*) Power supply voltage100 to 240 V AC is standard.
When ordering 24 V AC/DC, enter ‘1’ in Power supply voltage, after ’DO’.
DOInput

Input Range

Resolution

DO concentration

0.00 to 20.00 mg/L

0.01 mg/L

DO % saturation

0.0 to 200.0%

0.1%

Oxygen partial pressure

0.0 to 150.0 kPa

0.1 kPa

Temperature

0.0 to 50.0

0.1

Indication
Depends on the accuracy of Optical DO sensor.
accuracy
Time accuracy
Within 1% of setting time
Data update cycle 5 seconds
Relay contact: 1aContact output
Control capacity: 3 A 250 V AC (Resistive load), 1 A 250 V AC (Inductive load, cos =0.4)
Electrical life:
100,000 cycles
Output action : P control, ON/OFF control
Converts any one of (DO concentration, water temperature, DO % saturation, Oxygen partial
Transmission
pressure or MV) to an analog signal every update cycle, and outputs in current.
output 1, 2
If Transmission output 1 (or 2) high limit and low limit are set to the same value, Transmission
output 1 (or 2) will be fixed at 4 mA DC.
Resolution: 12000
Output: 4 to 20 mA DC (Load resistance: Max. 550 Ω)
Output accuracy: Within 0.3% of Transmission output 1 (or 2) span
Self-diagnosis
The CPU is monitored by a watchdog timer, and if an abnormal status occurs, theinstrument is switched to warm-up status.
Ambient
0 to 50
temperature
Ambient humidity
35 to 85 %RH (Non-condensing)Power supply
AER-102-DO: 100 to 240 V AC 50/60 Hz Allowable fluctuation range: 85 to 264 V ACvoltage (Must be AER-102-DO 1: 24 V AC/DC 50/60 Hz
Allowable fluctuation range: 20 to 28 V AC/DCspecified.)
Flush (Applicable panel thickness: 1 to 8 mm)
Structure
Case: Flame-resistant resin, Color: Black
Front panel: Membrane sheet
Drip-proof/Dust-proof: IP66 (for front panel only)
Protection
Overvoltage category , Pollution degree 2 (IEC61010-1)
structure
Safety standards RoHS directive compliantDimensions
W48 x H96 x D110 mm, Case depth: 98.5 mm (when mounted through a control panel)
WeightApprox. 290 g

Serialcommunication(C5 option)

The following operations can be carried out from an external computer.
(1) Reading and setting of various set values(2) Reading of DO concentration, DO % saturation, Oxygen partial pressure, temperature andstatus(3) Function change and adjustment(4) Reading and setting of user save area
Cable length
Communication line
Communication method
Communication speed
Synchronization method
Code form
Communication protocol
Data bit/parity
Stop bit
Error correction
Error detection

Data format:

ShinkoProtocol17Parity

Even

Stop bit1

MODBUS ASCIIMODBUS RTU

17 (8) Selectable
Even (No parity, Odd)
Selectable
1 (2) Selectable

18No parity (Even, Odd)
Selectable
1 (2) SelectableSame as contact output.

GasketScrew type mounting bracket

Terminal cover(sold separately)48

Terminalarrangement

11.5

98.5
104.5 (with terminal cover)130

n×48-3 ＋0.5
092＋0.8
09691
106.2

92＋0.80

EVT3, EVT4
outputs (Contactoutput 3, 4)[EVT3 option]
Dimensions,
Panel cutout(Scale: mm)

Communication
ProtocolStart bit
Data bit

1.2 km (Max), Cable resistance value: Within 50(Terminators
are not necessary, but if used, use 120
minimum on both sides.)EIA RS-485
Half-duplex communication
9600, 19200, 38400 bps (Selectable by keypad)
Start-stop synchronization
ASCII, Binary
Shinko protocol, MODBUS ASCII, MODBUS RTU(Selectable by keypad)
8-bits/No parity, 7-bits/No parity, 8-bits/Even, 7-bits/Even,
8-bits/Odd, 7-bits/Odd (Selectable by keypad)
1, 2 (Selectable by keypad)
Command request repeat system
Parity check, Checksum (Shinko protocol),LRC (MODBUS protocol ASCII), CRC-16 (MODBUS protocol RTU)

Horizontal close mounting
n: Number of mounted units

45＋0.50

GND: Ground ( 1 )POWER SUPPLY: Power terminals ( 2 - 3 )EVT1: EVT1 output terminals (Contact output 1) ( 5 - 6 )EVT2: EVT2 output terminals (Contact output 2) ( 12 - 13 )TRANSMIT OUTPUT1: Transmission output 1 terminals ( 7 - 8 )TRANSMIT OUTPUT2: Transmission output 2 terminals ( 14 - 15 )SELFCHECK OUTPUT:
Self-check output terminals (Contact output) 9 - 10
DO POWER FOR SENSOR:
External power supply (+) terminal (Red) ( 16 )DO POWER FOR SENSOR: External power supply (-)
terminal and DO sensor shield (Black) ( 17 )DO RS-485 (sensor input):
DO sensor YB (+) input terminal (Blue) ( 18 )DO RS-485 (sensor input):
DO sensor YA (-) input terminal (Green) ( 19 )When C5 option is ordered:
RS-485: Serial communication
Two connectors are internally wired.
When EVT3 option is ordered:
EVT3: EVT3 output (Contact output 3)
EVT4: EVT4 output (Contact output 4)

202001 E03