Hach 900 MAX Instrument Manual page 52

Section 3
Step 12 - Program Complete Output
Step 13 - Setpoint Sampling
Page 50
Advanced Sampling
Program Complete Output sends a +12 V dc signal out Pin F of the Auxiliary
Receptacle at the completion of the sampling program. This signal is also sent
when a Full Bottle condition causes the program to complete. The Program
Complete signal remains on (+12 V dc) for 61 seconds and then turns
back off (0 V dc).
Program Complete Output is used for the following purposes:
• Multiple Sampler Operation. Samplers are arranged in a "Cascade"
control where the first sampler signals a second sampler to start its
program when the first sampler's program is complete. This feature
requires the second sampler to be programmed for external
start operation.
• To interface to a PC to signal the end of the sampling program.
• To interface to a relay that trips a signal light in a control room to indicate
that sampling is finished and samples are ready to be picked up.
12-A. From the Advanced Sampling menu highlight Program Complete using
the and keys. Press
UP DOWN
11:00 AM 21 - APR - 01
SELECT
PGM CMPLT OUTPUT
SETPOINT SAMPLING
SPECIAL OUTPUTS
RETURN
12-B. Enable or Disable Program Complete using the
12-C. Press to continue to Set Point Sampling.
ACCEPT
Setpoint sampling allows the control of an automatic liquid sampler from one
of up to 14 sources. Setpoint sampling defines a set of limits that inhibit
sampling until an upset condition occurs, causing the limits to exceed.
Sampling is enabled only when the waste stream falls outside the setpoints.
13-A. Highlight Setpoint Sampling using the
Advanced Sampling Menu. Press
11:00 AM 21 - APR - 01
SELECT
PGM CMPLT OUTPUT
SETPOINT SAMPLING
SPECIAL OUTPUTS
START/STOP TIMES
RETURN
13-B. Enable or Disable Setpoint Sampling using the
Press to continue.
ACCEPT
to continue.
SELECT
ADVANCED SAMPLING
CHANGE CHOICE
and keys on the
UP DOWN
.
SELECT
ADVANCED SAMPLING
CHANGE CHOICE
key.
key.
8990startup.fm