Ecotech Serinus 44 - 4.4.2 Analog Inputs

Communications
Page 71
Analyser
Output 1
Output 2
Output 3
S51
SO
2
H
2
S
N/A
S55
H
2
S
N/A
N/A
S56
TS
N/A
N/A
S57
TRS
N/A
N/A
Serinus Cal 3000
N/A
O
3
N/A
4.4.1.1 Analog Outputs Voltage Calibration
Equipment Required
 Multimeter (set to volts)
 Male 25 pin connector with cable
Procedure
1. Open - Main Menu  Communications Menu  Analog Output Menu (refer to Section 3.4.24).
2. Select - Output Mode  Voltage.
3. Connect a multimeter (using an appropriate adaptor or probes on the multimeter) to the ground
(pin 24) and the relevant output pin (pin 10).
4. Edit - 0.5V Calibration - (until the multimeter reads 0.500 ±0.002) - Accept.
5. Edit - 5.0V Calibration - (until the multimeter reads 5.00 ±0.002) - Accept.
4.4.1.2 Analog Outputs Current Calibration
Equipment Required
 Multimeter (set to mA)
 Male 25 pin connector with cable
Procedure
1. Open - Main Menu  Communications Menu  Analog Output Menu (refer to Section 3.4.24).
2. Select - Output Mode  Current.
3. Connect a multimeter (using an appropriate adaptor or probes on the multimeter) to the ground
(pin 24) and the relevant output pin (pin 10).
4. Edit - 4mA Calibration - (until the multimeter reads 4mA ±0.01) - Accept.
5. Edit - 20mA Calibration - (until the multimeter reads 20mA ±0.01) - Accept.
4.4.2 Analog Inputs
The instrument is also equipped with three analog inputs with resolution of 15 bits plus polarity,
accepting a voltage between 0-5V. These go directly to the microprocessor and should be protected
to ensure static/high voltage does damage the main controller PCA (instrument warranty does not
cover damage from external inputs).