Glacier Transportable Sampler - Isco
Glacier Transportable Sampler - Isco
Glacier Transportable Sampler - Isco
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<strong>Glacier</strong> <strong>Transportable</strong> <strong>Sampler</strong><br />
Section 2 Installation<br />
These devices connect to the 6-pin Flow Meter Connector located<br />
on the side of the <strong>Glacier</strong> controller. Compatible devices include:<br />
• Pacing and Inhibiting devices:<br />
· 4100 Series Flow Loggers<br />
· 4200 Series Flow Meters<br />
· 2100 Series Flow Modules<br />
• Pacing devices (non-<strong>Isco</strong> device interfaces):<br />
· 4-20 mA Input Interface (also used with closed-pipe<br />
flow meters)<br />
· Pulse Duration Input Interface<br />
• Inhibiting devices:<br />
· Liquid Level Actuator<br />
If you are connecting a device other than those listed above,<br />
ensure that the input signals conform to the following:<br />
• Flow pacing input signal (pin C) requirements — a 5 to<br />
15 volt DC pulse or isolated contact closure of at least 25<br />
milliseconds in duration.<br />
• <strong>Sampler</strong> inhibit signal (pin F) requirements — a low<br />
(grounded) level of at least 5 seconds inhibits the<br />
operation. A high (or open) level of at least 5 seconds in<br />
duration restores the operation.<br />
2.10 Calibrate the Sample<br />
Volumes<br />
The <strong>Glacier</strong> can deliver sample volumes repeatable to ±10 ml.<br />
The sampler relies on you to enter correct suction line diameter<br />
and length values. The <strong>Glacier</strong> uses these values to:<br />
• Generate internal pump tables to “measure” the liquid<br />
volume<br />
• Calculate the suction head.<br />
By calculating the suction head, the delivered volumes are not<br />
affected by varying liquid levels. The <strong>Glacier</strong> automatically calculates<br />
the suction head using input from the Liquid Detector.<br />
Incorrect suction line values or disabling the liquid detector may<br />
adversely affect the volume accuracy. Therefore, calibrating the<br />
sampler can enhance sample volume accuracy.<br />
To prepare the <strong>Glacier</strong> for calibration:<br />
1. Turn the <strong>Glacier</strong> on.<br />
2. Press the CALIBRATE button and follow the steps:<br />
2.10.1 Calibration Step 1 The <strong>Glacier</strong> advances to the Suction Line Size display after you<br />
press the CALIBRATE button.<br />
SUCTION LINE SIZE:<br />
6 mm 9 mm<br />
The Suction Line Size is the inside diameter (I.D.) of the suction<br />
line tubing. Two sizes of suction line may be used with the<br />
<strong>Glacier</strong>:<br />
• 1 /4-inch (6-mm) I.D.<br />
• 3 /8-inch (9-mm) I.D.<br />
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