GE Hydran M2-X Instruction Manual page 49

Hydran* M2-X Instruction Manual
Note: For example, the reading range of a Magnetic-Mount Temperature
Transmitter (part number 13298) is -40 to 150 ºC. For this sensor, the Input
Min. parameter would be set to -40 ºC and Input Max. to 150 ºC.
– Input Resolution: Degree to which the result of the reading approximates
the true reading. Set this parameter only if discrete values need to be
displayed (for example, in the case of a tap changer position); otherwise, it
is set to 0.
– Alarm Setup: These parameters are identical to the ones in Alarms > Alarms
Setup > Analog Input Alarm Setup. See Section 3.3.2.5.
3.2.9.2 Analogue Output Setup
The An. Output Setup function is used to set up the optional analog output
signal.
•
Analog State: Displays the state of the Hydran M2-X's analog output as a
percentage of the maximum electric current. The analog output provides the
gas level being measured; the displayed percentage is thus directly proportional
to the gas level. For details on the analog output, see Section 2.3.2 and Section
K-1.
•
Analog Mode: To set the operation mode of the analog output. The three
Force x % modes are used only to test the operation of the Hydran M2-X.
Table 3-4 shows the electrical current generated for each mode.
Type of Output
4–20 mA
Table 3-4: Electrical Current Generated by the Analog Output for Each Operation Mode
3.2.9.3 TDM Output Setup
The TDM Output Setup function is used to set up the TDM output signal. The TDM
signal is monitored by a Hydran 201Ci-1 or Hydran 201Ci-4 Controller.
• IO State: Displays the state of the TDM signal in percentage. The displayed
percentage by IO State is thus directly proportional to the gas level (% output =
ppm/20; 2,000 ppm = 100 %).
• IO Mode: Used to set the operation mode of the TDM signal. The three Force x %
modes are used only to test the operation of the TDM signal.
• Comm #2 TDM Relay A: Used to select a first relay. The state of this relay will be
transmitted in the TDM signal.
• Comm #2 TDM Relay B: Used to select a second relay. The state of this relay will
be transmitted in the TDM signal.
• Sample Rate: To set the frequency at which the signal is updated.
MA-029 Rev. 1.0, 30-Jul-18
Operation Mode
Force 0 % Force 50 %
4.00 ± 0.10 mA 12.00 ± 0.20 mA
Force 100 %
20.00 ± 0.40 mA
Page 49