User's Manual

32 Series 4000 Maintenance and Operations Manual
Wiring
Instrument Connections
Use the information for the appropriate meter type to connect the MTU cable(s) to the instrument.
Refer to the Electrical Connection Parameters table for electrical parameters of each connector.
Mini-Max or ERX
Use the following information to connect the
MTU cable to a Honeywell Mini-Max volume
corrector or ERX pressure monitor.
COMP1
Mini-AT
Use the following information to connect the
MTU cable to the TB2 connector on a
Honeywell Mini-AT volume corrector.
COMP1
External Power (Optional)
Connect the red (positive) and black (ground) wires from the MTU to an appropriate 10-15 VDC
auxiliary power source on the instrument. Please refer to specific instrument documentation for
detailed information.
MTU Wire Mini-Max or ERX
GND Green
TB1 A- (Ground)
ALM Yellow
TB1 A+ (Alarm)
GND Black
Serial I/O GND (Ground)
TX White
Serial I/O RX (Receive)
RX Red
Serial I/O TX (Transmit)
MTU Wire Mini-AT
GND Green A- (Ground)
ALM Yellow A+ (Alarm)
GND Black Com (Ground)
TX White RX (Receive)
RX Red TX (Transmit)
Electrical Connection Parameters
COMP1 & COMP2 (J6 & J7) Input Output External Power (J12) Input
Ui = 12 V Uo = 3.5 V Ui = 15 V
Ii = 4 mA Io = 60 mA Ii = 45 mA
Pi = 50 mW Po = 210 mW Pi = 675 mW
Ci = 250 pF Co = 0 pF
Li = 0 Lo = 0
DRAFT