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MODEL 2230R, Process Hydrogen Analyzer
Page 13
Relays (Optional) - Connector 2
Supplied Cable – 4m (12 ft.) standard length (Other lengths available).
Wire Color Description
Grey Relay 1 Common
Pink Relay 1 Normally Closed (NC)
Black Relay 1 Normally Open (NO)
White Relay 2 Common
Blue Relay 2 Normally Closed (NC)
Brown Relay 2 Normally Open (NO)
Serial Interface (Optional) / Remote User Interface Module (Optional) -
Connector 3
Supplied Cable – 4m (12 ft.) standard length (Other lengths available).
Wire
Color
RS232 (standard)
RS422 (Optional)
Description
DB9
Pin
DB25
Pin
Description
DB9
Pin
DB25
Pin
Brown
+6V (N.C.)
White
TxD (Device Transmit) 3 2 TxD- (Device Transmit, -Ve) 3 2
Blue
- - - TxD+ (Device Transmit, +Ve)
4 3
Black
RxD (Device Receive) 2 3 RxD- (Device Receive, -Ve) 2 20
Grey
- - - RxD+ (Device Receive, +Ve) 6 8
Pink
Ground 5 7 Ground 5 7
4.2 ANALOG OUTPUT
The user can request for a specific output current or voltage range or there are a number of
standard analog output ranges the user can select from, which are listed below. The analog
output the user selects is scaled to the user’s hydrogen range of interest. All of this is initially
set at the factory per customer specification at the time of order.
Below is the table for standard analog output current ranges:
Current Analog Output Range Power-On Self Diagnostic Error
4 mA to 20 mA 2 mA 3 mA
0 mA to 20 mA 0 mA 20 mA