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Controller
Enclosure Rating:
Program Memory:
Flow Meter Signal Inputs:
Digital Alarms:
Number of Composite Samples:
Internal Clock Accuracy:
Software
Sample Frequency:
Sampling Modes:
Programmable Sample Volumes:
Sample Retries:
Rinse Cycles:
Controller Diagnostics:
a. The maximum altitude rating is per European Norm 61010-1, which establishes safety requirements for electrical equip-
ment. The rating pertains to electrical creepage and clearances. The rating is not applicable to pump performance.
Table 1-2 Specifications (Continued)
IP67
Non-volatile ROM (Flash)
5 to 15 volt DC pulse or 25 millisecond isolated contact closure for Isco flow
meters. 4-20 mA input for non-Isco flow meters.
4 programmable outputs; 5 VDC, 100 mA
Programmable from 1 to 999 samples.
1 minute per month, typical
1 minute to 99 hours 59 minutes, in 1-minute increments. 1 to 9,999 flow
pulses.
• Constant Time, Constant Volume
• Variable Time, Constant Volume
• Constant Time, Variable Volume
(Variable time and variable volume modes are controlled by an external flow
meter signal)
10 to 9,990 ml in 1 ml increments.
If no sample is detected, up to 3 attempts; user selectable.
Automatic rinsing of suction line up to 3 rinses for each sample collection.
Tests for RAM, ROM, pump, display, and electrical components.
Isco 4700 Refrigerated Sampler
Section 1 Introduction
NEMA 4X, 6
1-5
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