Baker Hughes Panametrics AquaTrans AT600, User Manual

Page: 35 / 174

AquaTrans™ AT600 User’s manual 25
Chapter 3. Wiring the AT600 electronics
3.7 Wiring the frequency/totalizer/ alarm output
The AT600 can accommodate up to two digital outputs. Each of these outputs can be configured as either a totalizer,
frequency or alarm output (see “Programming digital communications” on page 53 for instructions). Each
totalizer/frequency/alarm output requires a twisted pair cable. Wire the terminal block as shown in figure 23 on page
23 and figure 28 below.
Figure 28: Totalizer/frequency/alarm output wiring
3.8 Wiring the gate input
The AT600 provides a gate contact input port. This port is designed to start/stop the totalizer. During normal
measurement mode, thee operator can start or stop the totalizer functionality by toggling the gate switch.
To wire the Gate input, refer to Figure 23 on page 19 and figure 29 below and complete the following steps:
1. Verify that the main power has been disconnected from the unit, and then open the enclosure.
2. Install the required cable clamp in the chosen gland hole on the side of the electronics enclosure.
3. Route one end of the cable through the gland hole and wire it to terminal block.
4. Secure the cable clamp.
Figure 29: Gate input wiring
WARNING!
Always be sure to disconnect the main power supply from the AT600 before proceeding
with these instructions.
Model AT600
C: Isolated return
PIN: 8/A
PIN: 9/B
Totalizer/frequency
counter or
alarm detector
Volts +
(int. pwr. sup.)
Load
(minimum
10 Kohms)
Volts -
(common)
Max. current: 1A
Max. voltage: 100 V
Isolation voltage: 500 V
Max. load power: 2W IN
Model AT600
+5 V
NO
C
PIN: D
PIN: E
Switch