Hach-Lange SD900 Refrigerated Sampler, SD900 AWRS User Manual - Manual (Page 33)

Note: The refrigerator compartment has a drain opening in case an overfill condition occurs.
Advanced sampling
Send output signal at program completion
A 12 VDC signal can be sent through pin F of the auxiliary connector at the completion of a sampling
program or when the full bottle shut-off is activated. The signal stays on for 61 seconds.
The output signal can be used to:
• Start another sampler. Cascading samplers require a cascading cable (8757300). The slave
sampler must enable setpoint sampling and start on an external trigger.
• Activate a relay or other device when the program is complete.
To transfer the sample history to an external Sigma 950 flow meter, program complete must be
disabled. In addition, the special output must be enabled and configured to assert after the sample
cycle is complete.
1. Select PROGRAM SETUP>MODIFY SELECTED>ADV SAMPLING from the main menu.
2. Select PGM COMPLT O/P>ENABLE. The message “Bottle number output disabled on pin F” will
be shown. The bottle number output to send sample history to a Sigma 950 flow meter will be
disabled.
3. Select ENTER to activate the output signal.
Send output signal with sample cycle (special output)
The special output option sends a 12 VDC signal through pin E of the auxiliary connector during or
after a sample cycle.
There are five possible configurations:
• After cycle—4-second pulse at the end of each sample cycle. This option is used to signal an
external device that a sample cycle is complete.
• Entire cycle—during the entire sample cycle, includes all purge and rinse cycles.
• During sample—during the sample intake portion of the cycle only, ignores all purges and rinse
cycles.
• Missed sample—4-second pulse in the event of a missed sample. A missed sample can be
caused by a distributor error, purge fail, rinse fail, sample timeout, full bottle or pump fault.
• Trouble output—4-second pulse when a low main battery, low memory battery or cabinet
temperature error occurs.
Two configurations are necessary to transfer sample history to an external flow meter:
• First, the program complete output needs to be disabled to enable the bottle number output. The
bottle number output transmits whether the sample was taken successfully or not and which bottle
received the sample.
• Second, the special output needs to be enabled and configured to assert "After Each Sample".
The sample history will be transferred to the external Sigma 950.
1. Select PROGRAM SETUP>MODIFY SELECTED>ADV SAMPLING from the main menu.
2. Select SPECIAL OUTPUT>ENABLE.
3. Select one of the output options:
• AFTER CYCLE—at the completion of each sample cycle
• ENTIRE CYCLE—during the entire sample cycle
• DURING SAMPLE—during the sample intake
• MISSED SAMPLE—in the event of a missed sample
• TROUBLE OUTPUT—when a low main battery, low memory battery or a cabinet temperature
error occurs
English 31